Morse code over ip

Morse code over ip смотреть последние обновления за сегодня на .

Morse Code Audio QSO over ip using SoundJack.EU - LIVE demo

121
4
2
00:02:31
09.05.2020

🤍 brief test of setting up Morse Code Audio over IP using Soundjack.eu and its peer to peer networking APP... SoundJack.eu is being used world wide as one of the go to choices for low latency NETWORK MUSIC PERFORMANCE where musicians get together online to JAM in real time and low latency... which also means that it would also work well for Morse Code Audio over IP too... soundjack uses ASIO DRIVERs on WINDOWS OS, and the JACK AUDIO CONNETION KIT on Linux and also works on MAC OS the setup for this video demo... 2 soundjack clients: p2p - windows 10 CW soundjack.eu transmitter to a LINUX CW soundjack.eu receiver you can use OPUS AUDIO CODEC AT VARIOUS bitrates... at least 48K bitrate seems to be the minimum for CW AUDIO... note the WINDOWS 10 soundjack TRANSMITTER is also using Jack Audio Connection Kit for WINDOWS 10 - JackRouter ASIO driver

send Morse Code over IP-SOUND(by SM5VXC)

1063
3
0
00:01:21
01.11.2016

short demo of how morse code audio tones sound between 2 cw ops in QSO, both using the vintage, classic, well known in HAM RADIO - free voip internet p2p communication app - called IP-SOUND, created by SM5VXC.(no longer in development) 🤍 🤍 NOTE: both CW OPS were using the same codec: PCM 22Khz MONO ... 🤍 50 kB upload and 🤍50kB download data bandwidth... the received morse code audio tones, when using the PCM 22Khz MONO codec, do not really need any audio bandpass filtering if the original CW tones that are being sent are in good shape... which they were, since FLdigi was sending cw from the other station's computer IP-SOUND STATION in this video example...

CW - Morse Code qso over the internet using the free "audio OVER ip" APP - "Gstreamer" - LIVE DEMO

1130
5
0
00:01:16
24.02.2018

brief demo of one CWop sending CW to another CWop over the internet using the Gstreamer audio streaming APP - an AUDIO OVER IP opensource project that has versions for all OSes... GSTREAMER: 🤍 here are the GSTREAMER terminal commands used in this video for the SENDER and RECEIVER: SENDER: gst-launch-1.0 jackaudiosrc provide-clock=true do-timestamp=true buffer-time=10000 ! audio/x-raw,channels=1 ! audiorate ! audioconvert ! opusenc bitrate=128000 frame-size=40 ! rtpopuspay max-ptime=10000000 ! udpsink host=192.168.1.101 port=5001 RECEIVER: gst-launch-1.0 -v udpsrc port=5001 caps="application/x-rtp" ! queue ! rtpopusdepay ! opusdec ! audioconvert ! jackaudiosink buffer-time=30000 Gstreamer allows full duplex..so you can have FULL QSK to break in Gstreamer has MANY options and a lot of versatility to explore for Morse Code QSO'n over ip as you can hear, and see on the SPECTRUM ANALYZER and SCOPE views....the CW remains fully intact, cloning the original FLdigi cw note shape and timing, and has excellent audio quality, sounding virtually like the original FLdigi morse code audio tones - when using Gstreamer and the OPUS CODEC NOTE: towards the end of the video you may have heard an audio "POP" that is typical example of the types of QRM & QRN you might hear when using UDP packets for audio transmission over the internet, similar to the audio artifacts you hear on HF, with static crashes et al... packet delay, packet loss etc...

Morse Code audio QSO over IP - using the WIRE DESKTOP APP

308
2
3
00:01:04
21.07.2017

Brief demo of what a morse code audio QSO over IP sounds like - using the WIRE DESKTOP APP The Wire Desktop APP software 🤍 🤍 Description Secure, end-to-end encrypted messenger for calls, chat, sharing pics, videos, files, GIFs, sketches and more. Works on mobile, tablet, desktop, and keeps chats always in sync. 🤍 NOTE: WIRE allows for up to 10 CW OPs to join the QSO: 🤍 "To start a group call: Start a group conversation. Click Call . Everyone in the group conversation will receive a notification that a group call has been initiated. Up to 10 people can join the call. To end the call, click Hang Up . * Please note: bandwidth and other resource requirements increase proportionally to the number of participants on the call." DEMO SETUP: 2 CWops qso'N on THE WIRE-DESKTOP...one OP is sending a text file from TOM's famous article about copying cw over 70 wpm: 🤍 ...so what you are hearing, is what 'that' audio cw sounds like...with and without an additional software cw audio bandpass filter...called the GLAME BANDPASS FILTER. for more info on morse code audio over IP and other CW related topics ...please visit the QRQcw website here: 🤍

send Morse Code Audio over IP on Windows 10 using UltraGrid, Jackrouter & ehoCW

107
2
0
00:02:18
27.08.2020

ehoCW is the CW keyer, since it can use JackRouter as its ASIO DRIVER and work in low latency on windows 10 using the windows version of JACK AUDIO CONNECTION KIT...UltraGrid 1.6, is the AUDIO OVER ip APP, and it has NATIVE JACK AUDIO support so you can hook ehoCW's audio output directly to the input of ULtraGrid and send it out over the internet to the RX(s) this video demoS sending a text file on ehoCW at 60 wpm and also using iambic paddles, via a Teensy USB midi board hooked up to the win 10 laptop's USB PORT - send the ultragrid CW stream over to a linux laptop receiver... which is the audio you hear on this video 🤍 ultragrid win 10 transmit terminal command: ~\Downloads\UltraGrid-1.6-win64\UltraGrid-1.6-win64 uv param low-latency-audio -r jack -s jack (ip address of the RX pc) ultragrid linux receiver terminal command: * uv -r jack for more info on QRQ CW, please see our website here: 🤍

send Morse Code QRQ CW Audio over IP on Windows 10 using FFMPEG & OPUS CODEC - LIVE demo @ 60 wpm

42
1
0
00:34:04
25.08.2020

this is a follow up video to the first here: 🤍 in this video, we test ffmpeg on WINDOWS 10 and have FLdigi on windows 10 send the whole book of Colossians at 60 wpm to the Linux laptop where the recording is made, and you can see & hear how well it does... the TRANSMIT FFMPEG SCRIPT for the WINDOWS 10 * \Downloads\ffmpeg-20200824-3477feb-win64-static\ffmpeg-20200824-3477feb-win64-static\bin ffmpeg -f dshow -i audio="Line 1 (Breakaway Pipeline)" -acodec libopus -ab 96k -cutoff 4000 -vbr off -application lowdelay -frame_duration 20 -ac 2 -ar 48000 -f rtp rtp://(IP ADDRESS OF THE RECEIVER PC):5000? the RECEIVER FFMPEG SCRIPT for the LINUX LAPTOP ffplay opuswin.sdp -protocol_whitelist file,udp,rtp DOWNLOAD FFMPEG windows, linux, mac 🤍 for more info on QRQ CW, please see our website here: 🤍

CW audio over ip Morse Code Net server using ZeroTier SDN, Gstreamer & a Raspberry PI - QRQ CW demo

127
3
0
00:03:59
01.08.2020

Brief demo of 4 QRQ CW OPs in conference, full duplex, 2-way, OPUS CODEC, Gstreamer pipelines, using ZEROtier's SDN network ip tables...each OP connecting to the same RASPBERRY PI SERVER and receiving everyone's CW AUDIO a Raspberry PI 4 is setup as a selective forwarding unit(SFU)... so each incoming morse code audio stream goes right back out to every OP connected to the zerotier SDN NETWORK 🤍 the OPUS CODEC is used at the default Gstreamer settings... 64K bitrate, 48k samplerate, 20ms frame-size...for this example for more info on QRQ CW, please see our website here: 🤍 RASPBERRY PI SFU SCRIPT - for each op - using their own individual input/output port(s) and Zerotier SDN ip addresses: using a script like this: gst-launch-1.0 -v udpsrc port=6001 ! queue ! multiudpsink clients=10.147.18.40:7001,10.147.18.6:7001,10.147.18.173:7001,10.147.18.252:7001 [the respective ZeroTier ip addresses of each OP connected to this unique Software defined network] EACH OP's TRANSMIT SCRIPT will look something like this(different port for each OP) gst-launch-1.0 -v jackaudiosrc ! "audio/x-raw,channels=1" ! audioconvert ! opusenc ! rtpopuspay ! udpsink host=10.147.18.96[which is the ZeroTier SDN ip address of this pi 4] port=6001 TO RECEIVE every op's CW AUDIO from the PI 4 SFU SERVER - a script like this for each OP, different ports, different jackaudiosink name: gst-launch-1.0 -v udpsrc port=7001 ! "application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0, payload=(int)96, encoding-params=(string)2" ! rtpjitterbuffer ! rtpopusdepay ! opusdec ! audioconvert ! jackaudiosink sync=false async=false name=W3NJZ

Morse Code Audio Over IP test using the AC3 CODEC - LIVE demo

71
2
0
00:02:28
21.03.2020

sending CW over IP(VPN routing from several states away) using Gstreamer's AC3 encoding of morse code audio tones... - - - this Gstreamer script is the transmit script - - - gst-launch-1.0.exe -v wasapisrc ! queue ! audioconvert ! "audio/x-raw,channels=1" ! audioconvert ! avenc_ac3 ! rtpac3pay ! queue ! udpsink host=(external ip address of RX) port=1194 - - - this Gstreamer script is the receiver script - - - gst-launch-1.0 -v udpsrc port=1194 ! queue ! "application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)AC3, payload=(int)96" ! rtpjitterbuffer ! rtpac3depay ! a52dec ! audioconvert ! queue ! jackaudiosink RESULTS: the Morse Code audio notes were well formed and sounded good, after being AC3 ENCODED by the AC3 TRANSMITTER Gstreamer PIPELINE and sent out over ip using UDP packets to a VPN server, and then received and decoded by the Gstreamer AC3 codec plugins on this recording laptop

Morse Code Audio over ip(Gstreamer) from Windows 10 sender to Linux Reciever - deinterleave example

55
3
0
00:01:37
22.01.2020

this video provides a use case for Morse Code over IP using Gstreamer on a Windows 10 transmitter...using just 1 single channel of its STEREO MIC INPUT Jack and the Gstreamer DEINTERLEAVE plugin 🤍 this video uses the previous method described here 🤍 to get the CW KEYER's AUDIO OUTPUT into the WINDOWS 10 mic input jack The Gstreamer INTERLEAVE plugin code in this example, allows the use of just one channel of the MIC INPUT for sending...so that the EMF pickup COIL connected only to its left mic input channel, is the only audio that gets transmitted, using just a 1 channel gstreamer pipeline...inside the Gstreamer transmit code is a Gstreamer CW AUDIO BANDPASS FILTER...that takes the K1EL K40 CW KEYER's audio output, which is a raspy square wave...and transforms it into a nice sounding sine wave/raised cosine(like) shaped edged CW AUDIO NOTE, with a very clean audio spectrum readout...also the Gstreamer transmit code includes a TEE Gstreamer plugin so that it sends to the LINUX LAPTOP and also forwards the same audio to its own sound card...so you only have to run one gstreamer command to do all of these functions... the audio you are hearing is the RECEIVE GSTREAMER on the LINUX LAPTOP(Lubuntu 18.04) the view on the left shows the windows 10 audio properties of the mic jack, and also a vu meter and spectrum analyzer of the windows 10's own Realtek HD audio sound card as it receives the same audio that is being sent to the LInux Laptop The view on the right shows the RECEIVE SPECTRUM and the RECEIVE SCOPE VIEW of the RECEIVED WAVESHAPE...also at the top right is the WINDOWS 10 TERMINAL showing the gstreamer code it is using... WINDOWS 10 TRANSMIT GSTREAMER CODE: gst-launch-1.0.exe -v wasapisrc ! queue ! audioconvert ! "audio/x-raw,channels=2,rate=48000" ! deinterleave name=d d.src_0 ! queue ! audiowsincband mode=band-pass lower-frequency=600 upper-frequency=800 length=700 window=hamming ! audiorate ! tee name=t ! queue ! udpsink host=192.168.1.101 port=6789 t. ! queue ! audioconvert ! wasapisink buffer-time=35000 LINUX RECEIVE GSTREAMER CODE: gst-launch-1.0 -v udpsrc port=6789 ! "audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)48000, channels=(int)1" ! audioconvert ! audiorate ! audiowsincband mode=band-pass lower-frequency=600 upper-frequency=800 length=700 window=hamming ! jackaudiosink buffer-time=25000 sync=false async=false

QSO CW over the internet with other Morse Code OPs using the New KOORD RealTime 'audio OVER ip' APP

54
5
0
00:03:14
22.01.2022

🤍 🤍 uses the open source code from JAMULUS NOTE: HF background static from my RIG was added to the audio for effect(comfort noise)

Morse Code audio QSO over IP - using the Linux audio command line app - TRX

600
1
0
00:02:36
08.08.2017

short demo of how the LINUX AUDIO APP "trx" sounds when sending morse code audio tones over ip from one LINUX computer to another LINUX computer 🤍 🤍 🤍 🤍 🤍 NOTE: text that is heard is from FLdigi sending over TRX, this article from the legendary qrq cw artist - W4BQF 🤍 Here is an ongoing article about this topic: 🤍

Morse Code over ip: Network Tools to evaluate condition of internet 2-way full duplex packet pathway

48
1
0
00:01:58
04.10.2021

SETUP: send morse code over ip using the OPUS CODEC, using a 1 channel Gstreamer, full duplex, 2-way pipeline script...hook up a scope to eval how well the CW holds up over the round-trip internet pathway, going through multiple routers & switches...listen & look at scope for any audio glitches (uses the typical gstreamer OPUS CODEC send/receive scripts) send an audio SWEEP from 22hz to 22Khz uses pulseaudio via "padsp" prefix * padsp swgen -v -s 48000 -x10 1 22 220000 * (swgen Ver. 2.3.10 (May 2008) Digital Sweep Generator) uses a Gstreamer pipeline from CWop1 to CWop2 - using a loopback pipeline setup on CWop2's desktop... evaluate the sweep for how smooth it moves from left to right on a video spectrum analyzer scope provided by a Gstreamer audio-visual element - the "spectrascope" element from Gstreamer and also used is the Gstreamer text-overlay script: textoverlay text="Transmitter Connected" valignment=top halignment=left font-desc="Sans, 72" send an audio pulse once every second ... and measure the round trip latency... AND - also watch for any network jitter...(uses a gstreamer loopback setup too... as above... on CWop2's desktop) linux terminal command for the Gstreamer pulse generator gst-launch-1.0 -v audiotestsrc wave=8 ! audioconvert ! queue ! autoaudiosink

Morse Code Instructors - conduct your CW COPY Practice Lessons over ip using this WIN 10 RTSP SERVER

62
2
0
00:03:21
13.12.2020

using a WINDOWS 10 RTSP SERVER, allows MULTIPLE CWops to connect to it over ip to listen to the MORSE CODE COPY PRACTICE SESSIONS put on by the instructor(s) this is a follow up video from the 1st one here: 🤍 🤍 🤍 🤍 🤍 windows 10 RTSP SCRIPT to send FLdigi CW to the WIN 10 RTSP SERVER C:\gstreamer\1.0\msvc_x86_64\bin gst-launch-1.0 -v wasapisrc ! queue ! audioconvert ! opusenc bitrate=512000 ! queue ! rtspclientsink location=rtsp://127.0.0.1:8554/mystream NOTE: you have to set your windows default playback/recording device to the virtual audio cable that you are using for FLdigi's playback device RSTP CLIENT SCRIPT for each op to use: * gst-launch-1.0 rtspsrc location=rtsp://192.168.1.142:8554/mystream protocols=tcp ! "application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)1, payload=(int)96, encoding-params=(string)2" ! rtpjitterbuffer ! rtpopusdepay ! opusdec ! audioconvert ! autoaudiosink for more info about Gstreamer on windows 10 - see the playlist here: 🤍

Morse Code over SIP voip call: 4 different audio codecs compared for morse tone quality

413
2
0
00:02:51
24.10.2016

Using 2 seperate Jitsi voip clients/computers, that were connected to each other over the internet, this video demonstrates the audio quality of the morse code audio tones as they are transmitted from one SIP CLIENT to the other SIP CLIENT over the Session Initiation Protocol / VOIP / internet pathways. Codecs tested for morse code audio quality are: 1. iLBC / 8000 2. Silk / 8000 3. G722 / 16000 4. OPUS / 48000 5. and finally the worst performing codec(iLBC 8000) is RE-tested to see how well it will regenerate and reconstruct into a new morse code audio tone by using a TONE VOLUME Input to trigger a MIDI NOTE OUTPUT using a unique setup - where the midi note output keys a 2nd software sine wave code practice oscillator - all just using REAPER and its own plugins. 🤍 NOTE: the cw being transmitted by FLdigi from the Jitsi client, is from a text file made from here: 🤍

Morse Code Audio QSO over IP - CW NET - How to control every CW OP's sidetone pitch & volume

102
2
0
00:01:03
25.09.2017

using some free VST PLUGINs and Multiple instances of the MUMBLE CLIENT, you can control every morse code op's pitch and volume while in the same mumble channel using CW REGENERATION with the Reagate VST plugin and sineCW VST plugin This demo is using LINUX and the JACK AUDIO CONNECTION KIT, and the pulseaudio / jack bridge from KXstudio. using pacmd pulseaudio commands in terminal, 4 pulseaudio/jack sinks were setup so each instance of mumble can have its own pulseaudio/jackSINK...you can then route each mumble's audio output to separate cw regeneration plugin paths...and thus control every CW OP's pitch and volume using the sineCW VST plugin gui...use the PAVUCONTROL to select the appropriate jackSINK for each mumble client instance. for more info on CW REGENERATION see this ongoing article: 🤍 for more info on sineCW see this ongoing article: 🤍

QSO Morse Code Audio Over IP with other CWops - using FLdigi, SonoBus & Pulseaudio - LINUX CWop DEMO

114
1
0
00:04:03
18.01.2021

PAVUCONTROL: need the PAvuCONTROL APP for this LINUX CWop setup 🤍 FLdigi: 🤍 SONOBUS: 🤍 alsa loopback snd-aloop: 🤍 BRIEF demo of setting up on a LINUX LAPTOP using PULSEAUDIO, the APP's: sonobus, snd-aloop alsa loopback cable & FLdigi to be able to qso cw audio over ip with other ops you can also use with W.I.N.E, ehoCW for paddles or straight key or (both paddles & st key) just select the same alsa loopback cable for ehoCW as you did for FLdigi same could be said for dahdidah, Morse Keyer, CWtype, (test to see if they work with W.I.N.E) 🤍 🤍 🤍 🤍 For Linux & PULSEAUDIO there is also TWCW cw keyer 🤍 FOR USING PADDLES & STRAIGHT KEY: you can also try keying a nice sounding CW TONE into your mic or line input and tell SonoBus to listen to that input(instead of the loopback cable) and monitor your sidetone with the SonoBus monitor slider as before.... if you need the clean up the sidetone a bit...you can try using PulseEffects: here is a VIDEO DEMO of PulseEffects cleaning up the harsh CW KEYER's audio output via the MIC JACK or LINE INPUT heading towards SonoBus INPUT etc.... 🤍 🤍 🤍 🤍

Morse Code VLF CW RF over IP - using the Gstreamer Vorbis Codec - QUISK SDR to receive - LIVE demo

24
1
0
00:03:19
28.04.2020

BRIEF demo of one OP sending 11.838 Khz CW over IP using Gstreamer's VORBIS CODEC...being received at the other OP's location...that RECEIVE VLF goes directly into a BI-COIL FERRITE ROD VLF TX/RX ANTENNA(COIL 1) and gets demodulated by the receive OP's QUISK SDR APP through the BI-COIL FERRITE ROD VLF TX/RX ANTENNA(COIL 2) Here is the TRANSMIT VORBIS VLF over IP script used: gst-launch-1.0 -v jackaudiosrc ! "audio/x-raw,rate=96000,channels=1" ! audioconvert ! vorbisenc quality=.7 ! rtpvorbispay config-interval=1 ! udpsink host=192.168.1.101 port=5678 Here is the RECEIVE VORBIS VLF over IP script used: * gst-launch-1.0 -v udpsrc port=5678 do-timestamp=true ! "application/x-rtp, media=(string)audio, clock-rate=(int)96000, encoding-name=(string)VORBIS, encoding-params=(string)1, configuration=(string)" ! rtpjitterbuffer ! rtpvorbisdepay ! vorbisdec ! audioconvert ! jackaudiosink NOTE: VORBIS RECEIVE STRING is too long, and was rejected by YouTube's limit on description..but it was just copied from the CAPs that showed up in the transmitter script and pasted just after the(string) in the receive script above... (just before rtpjittebuffer)

Windows 10 - Morse Code Audio over ip using Gstreamer, AsioBridge & VB-Audio's Hi Fi Cables(pt1)

1132
5
0
00:02:29
07.11.2019

SETUP: asiobridge is using the windows 10 laptop's native Realtek ASIO driver - fldigi sends its output to the VB-AUDIO Hi Fi CABLE ...which routes through the ASIOBRIDGE and goes to the windows 10 sound card so the win 10 op can hear their own sidetone...but CW AUDIO also goes out the VB-AUDIO Hi Fi virtual audio cable...which is where the win 10's Gstreamer transmit pipeline is "listening" in order to send CW AUDIO with OPUS CODEC encoding to another CW OP over the internet when the "other" CW OP sends to the WIN 10 op, the Gstreamer RECEIVE pipeline sends that audio to the Hi Fi virtual audio cable which routes through the ASIOBRIDGE to the WIN 10 OP's sound card The ASIO BRIDGE, by using the Realtek ASIO DRIVER, provides Low Audio Latency operations for Morse Code Keying HERE ARE THE GSTREAMER SCRIPTS used by the WIN 10 OP TRANSMIT: C:\gstreamer\1.0\x86_64\bin gst-launch-1.0.exe -v wasapisrc device="\{0.0.1.00000000\}.\{be6b76e0-754f-4a7c-9e5e-6e1312336862\}" ! queue ! audiorate ! audioresample ! audioconvert ! opusenc bitrate=512000 ! rtpopuspay ! rtpstreampay ! queue ! udpsink host=(ip address of the other OP) port=7777 RECEIVE: C:\gstreamer\1.0\x86_64\bin gst-launch-1.0.exe -v udpsrc port=7778 ! "application/x-rtp-stream, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)1, payload=(int)96, encoding-params=(string)2" ! rtpstreamdepay ! rtpopusdepay ! opusdec ! audioconvert ! audiorate ! audioresample ! queue ! wasapisink device="\{0.0.0.00000000\}.\{680aaaa8-c8bd-4f86-9401-68c9421c573e\}" buffer-time=30000

Remote Rig Morse Code Audio Over IP test using an AC3 CODEC rtp server::client - LIVE demo

24
0
0
00:01:12
23.03.2020

brief demo to test how well an AC3 CODEC GSTREAMER RTP SERVER::CLIENT setup would perform as a REMOTE RIG OPERATIONS for TRANSMIT & RECEIVE... to key CW on the RIG from a remote OP position...and receive the RIG's audio on the REMOTE OP's PC over ip the SPECTRUM ANALYZER seen on this video, is what the CW AUDIO looks like after it is received from the remote op on the raspberry pi2b::rig interface...and that CW audio to be transmitted, looks very pure and free of harmonics above or below the CW PITCH as viewed on the SPEC-AN - all the way down to minus(-)144 db the AC3 codec seems to do an excellent job of preserving the original CW AUDIO created by the AD5DZ CW KEYER BASIC GTREAMER simple AC3 RTP SERVER::CLIENT SCRIPTS: REMOTE LAPTOP rtp RECEIVE SCRIPT from PI SERVER: gst-launch-1.0 -v rtpbin latency=15 name=rtpbin udpsrc port=4002 caps="application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)AC3, payload=(int)96" ! rtpbin.recv_rtp_sink_0 rtpbin. ! rtpac3depay ! a52dec ! audioconvert ! jackaudiosink buffer-time=15000 udpsrc port=4003 ! rtpbin.recv_rtcp_sink_0 rtpbin.send_rtcp_src_0 ! udpsink port=4007 host=192.168.1.130 sync=false async=false PI TRANSMIT rtp SERVER SCRIPT to remote OP'S rtp CLIENT: gst-launch-1.0 -v rtpbin latency=15 name=rtpbin jackaudiosrc ! audioconvert ! avenc_ac3 bitrate=128000 ! rtpac3pay ! rtpbin.send_rtp_sink_0 rtpbin.send_rtp_src_0 ! udpsink port=4002 host=192.168.1.101 rtpbin.send_rtcp_src_0 ! udpsink port=4003 host=192.168.1.101 sync=false async=false udpsrc port=4007 ! rtpbin.recv_rtcp_sink_0 PI RECEIVER rtp RECEIVE SCRIPT from remote OP: gst-launch-1.0 -v rtpbin latency=15 name=rtpbin udpsrc port=6002 caps="application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)AC3, payload=(int)96" ! rtpbin.recv_rtp_sink_0 rtpbin. ! rtpac3depay ! a52dec ! audioconvert ! jackaudiosink buffer-time=15000 udpsrc port=6003 ! rtpbin.recv_rtcp_sink_0 rtpbin.send_rtcp_src_0 ! udpsink port=6007 host=192.168.1.101 sync=false async=false REMOTE OP's TRANSMIT RTP SERVER SCRIPT to PI rtp CLIENT: gst-launch-1.0 -v rtpbin latency=15 name=rtpbin jackaudiosrc ! audioconvert ! avenc_ac3 bitrate=128000 ! rtpac3pay ! rtpbin.send_rtp_sink_0 rtpbin.send_rtp_src_0 ! udpsink port=6002 host=192.168.1.130 rtpbin.send_rtcp_src_0 ! udpsink port=6003 host=192.168.1.130 sync=false async=false udpsrc port=6007 ! rtpbin.recv_rtcp_sink_0

Ham Radio over IP - Voice, Morse Code, BPSK63 Text Messaging - using a 3 channel Gstreamer AC3 codec

61
1
5
00:04:58
18.11.2020

brief demo testing a Gstreamer AC3 codec/ with RTP payloading for sending 3 channels of different ham radio transmit content over ip - 1. VOICE on channel 1 2. MORSE CODE on channel 2 3. bpsk63 live, real time, text messaging on channel 3 TRANSMIT SCRIPT gstreamer gst-launch-1.0 -v jackaudiosrc ! "audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)48000, channels=(int)3, channel-mask=(bitmask)0x0000000000000103" ! audioconvert ! avenc_ac3 ! rtpac3pay ! udpsink host=(IP ADDRESS OF RECEIVER PC) port=7007 RECEIVER SCRIPT gstreamer gst-launch-1.0 -v udpsrc port=7007 ! "application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)AC3, payload=(int)96" ! rtpac3depay ! a52dec ! audioconvert ! jackaudiosink sync=false async=false VOICE AUDIO DEMO from 🤍

send & receive Morse Code Midi over ip - using QmidiNet

195
0
0
00:03:35
16.05.2018

brief test to see how well QmidiNet can send & receive Morse Code Midi Messages over the LAN to key a software CW KEYER(ingen) 🤍 🤍 🤍 Morse Code Midi Messages were created using TRIGGER MIDI MONO: 🤍 🤍

Raspberry PI - Morse Code Audio Over IP server - experimental setup for an online CW NET

182
3
0
00:02:33
26.12.2017

Using Jacktrip in multi client mode ( jacktrip -C ) all connecting morse code CW OPS will automatically be fully connected to all other connecting morse code CW OPS for sending and receiving CW AUDIO tones over IP... the raspberry pi uses a USB SOUND CARD as its sound card for the jack audio connection kit audio engine system...a ground loop isolator cable is connected from the LINE OUTPUT of the USB SOUND CARD to the LINE INPUT of the same USB SOUND CARD....then all connecting jacktrip clients will automatically be connected to each other for full duplex, full qsk, morse code audio over ip qso'N 🤍 NOTE: The audio pops heard are audio buffer issues from the recording software taxing the CPU and LAN packet congestion from all 4 connecting computers going full blast on the LAN, taxing the cheap router and cheap network switches used to make this demo...so the quality of the your network and ip provider will effect the performance of this setup...each JackTrip client takes up just under 1 meg of bandwidth...usually you can connect up to 4 people on the JackTrip Rasberry Pi server if you have 🤍 4-5 megs or more of upload and download speed from your broadband internet provider... JACKTRIP SERVER COMMAND LINE : jacktrip -S -n1 JACKTRIP CLIENT COMMAND LINE: jacktrip -C [ ip address of the jacktrip server ] -n1 you only have to forward the jacktrip port 4464 to the pi's LAN ip address in your router's port forwarding setup page 🤍 🤍 🤍 🤍 🤍 🤍 🤍 🤍

Morse Code Audio over IP - using the Quacktrip Pure Data Patch - LIVE demo

205
4
0
00:01:44
10.10.2020

first test run of using the Quacktrip Pure Data Patch for QSO'n Morse Code Audio over ip (internals of Quacktrip = JackTrip - uncompressed PCM audio) NOTE: JackTrip is used by Musicians world wide to JAM ONLINE with each other...(lots of work on development of all this software has been accomplished during the lock-down over the last year) 🤍 🤍 🤍 🤍 🤍 in this video, two OPs are shown sending and receiving at the same time to show the FULL DUPLEX capability of this audio over ip software

Morse Code "audio OVER ip" with CwType & Gstreamer - Windows 10 CWop to Linux CWop - p2p connection

65
0
0
00:01:04
08.08.2019

This setup is one of many ; exploring the options for sending more code audio over ip - In this example, there is a special setup for the WIN 10 CWop - using a Gstreamer command to use the VB-AUDIO HI FI CABLE as the virtual audio cable to receive the CW AUDIO from the Win 10's CwType - however in order to hear your own sidetone...you have to capture the audio on the VB-AUDIO HI FI cable and also send it to your own sound card, in addition to sending it to the target CWop's ip address over Gstreamer... The way this is done in this example...instead of using an audio repeater APP....we just use Gstreamer to provide, in low latency, a multi broadcast of its audio over ip transmission, sending CwType/VB-AUDIO HI FI CABLE - both to the other CWop over ip AND to your own ip address..then using a local GSTREAMER receiver script...you pick up the audio on the VB-AUDIO/CWtype's hi fi cable pipeline...and it gets routed to your own sound card so you can hear CwType...with near zero latency.... for the WIN 10 gstreamer install info see here: 🤍 * here are the WIN 10 GSTREAMER SCRIPTS used in this example * to Transmit to the other CWop's ip address AND to your own ip address so you both can hear the cw from the WIN 10 CwType C:\gstreamer\1.0\x86_64\bin gst-launch-1.0 -v wasapisrc device="\{0.0.1.00000000\}.\{f1fdb333-c944-491b-8408-651b61285f2d\}" use-audioclient3=true low-latency=true ! audioconvert ! queue ! opusenc bitrate=512000 frame-size=2.5 ! rtpopuspay ! queue ! multiudpsink clients=192.168.1.143:1194,192.168.1.101:1194 (NOTE: the ip address for the other CWop will be their external ip address, not your local LAN ip address...however, you can use the 2nd ip local address to go to the ip on your WIN 10 computer as listed in your terminal command "ipconfig") NOTE: the wasapisrc device ID shown in the command above, the VB-AUDIO HI FI CABLE, was discovered using a gstreamer command: C:\gstreamer\1.0\x86_64\bin gst-device-monitor-1.0 🤍 To receive & hear your own sidetone from the WIN 10 CwType C:\gstreamer\1.0\x86_64\bin gst-launch-1.0 -v udpsrc port=1194 caps="application/x-rtp" ! rtpjitterbuffer latency=10 ! rtpopusdepay ! opusdec ! audioconvert ! wasapisink device="\{0.0.0.00000000\}.\{b4378d5f-7e05-42a2-b42a-2a00f63aee2c\}" sync=false buffer-time=10000 NOTE: the wasapisink device id, for the realtek hd sound card, was found using the gstreamer command mentioned above To receive the other CWop's morse code audio over ip - C:\gstreamer\1.0\x86_64\bin gst-launch-1.0 -v udpsrc port=1195 caps="application/x-rtp" ! rtpjitterbuffer latency=10 ! rtpopusdepay ! opusdec ! audioconvert ! wasapisink device="\{0.0.0.00000000\}.\{b4378d5f-7e05-42a2-b42a-2a00f63aee2c\}" sync=false buffer-time=10000 the LINUX CWop's Gstreamer commands(using JackRouter) To SEND to the WIN 10 CWop's ip address gst-launch-1.0 -v jackaudiosrc ! audioconvert ! audioresample quality=10 ! queue ! opusenc bitrate=512000 frame-size=2.5 ! rtpopuspay ! queue ! udpsink host=(external ip address of the win10 CWop) port=1195 to RECEIVE from the WIN 10 CWop gst-launch-1.0 -v udpsrc port=1194 caps="application/x-rtp, media=(string)audio, payload=(int)96, clock-rate=(int)48000, encoding-name=(string)OPUS" ! rtpjitterbuffer latency=10 ! rtpopusdepay ! opusdec ! audioconvert ! jackaudiosink sync=false buffer-time=10000 NOTE: for the LINUX CWop, there is no need to run a duplicate transmit command to hear your own sidetone...since with JackRouter - you can just connect the output from CwType right over to your sound card port GUI pins NOTE: to get PulseAudio to produce a 2nd instance of the Jack/pulse bridge plugin - the command pacmd load-module module-jack-sink client_name=CwType was used... NOTE: to run a windows program like CwType on Linux, W.i.n.e is installed and runs CwType very well 🤍

Windows 10 - Morse Code Audio over ip using Gstreamer, AsioBridge & VB-Audio's Hi Fi Cables(pt2)

188
1
0
00:02:07
09.11.2019

SETUP: asiobridge is using the windows 10 laptop's native Realtek ASIO driver - the CW KEYER's SPEAKER, with an EMF COIL POSITIONED ideally to pick up the most audio EMF from the CW KEYER's speaker, connecting to the win 10's MIC INPUT, sends the COIL's audio EMF to the ASIOBRIDGE//REALTEK ASIO DRIVER's VB-AUDIO's Hi Fi CABLE ...which goes out the VB-AUDIO Hi Fi virtual audio cable to the Gstreamer PIPELINE INPUT...which is where the win 10's Gstreamer transmit pipeline is "listening" in order to send CW AUDIO with OPUS CODEC encoding to another CW OP over the internet when the "other" CW OP sends to the WIN 10 op, the Gstreamer RECEIVE pipeline sends its audio through the Hi Fi virtual audio cable which then routes through the ASIOBRIDGE to the WIN 10 OP's sound card The ASIO BRIDGE, by using the WIN 10 laptop's native Realtek ASIO DRIVER, provides Low Audio Latency operations for Morse Code FULL DUPLEX, 2 WAY QSO operations - over the internet Here is the WINDOWS 10 transmit Gstreamer Script used in this demo - NOTE: this Gstreamer script includes a CW AUDIO BANDPASS filter that virtual gets rid of all the square wave harshness in the CW NOTE and the keyclicks that are resident on the CW KEYER's speaker's audio output...(it also includes an AUDIO AMPLIFIER gstreamer code to boost the low level from the EMF COIL C:\gstreamer\1.0\x86_64\bin gst-launch-1.0.exe -v wasapisrc ! queue ! audioconvert ! audiowsincband mode=band-pass lower-frequency=600 upper-frequency=800 length=300 window=hamming ! audioamplify amplification=40 ! audioconvert ! opusenc bitrate=512000 ! rtpopuspay ! queue ! udpsink host=(ip address of Linux OP) port=6001 the receive script on the Linux OP's Gstreamer Receiver gst-launch-1.0 -v udpsrc port=6001 ! "application/x-rtp,encoding-name=OPUS,channels=2,rate=48000,media=audio,payload=96,clock-rate=48000" ! rtpopusdepay ! opusdec ! audioconvert ! jackaudiosink

Extremely low bit rate experiment with the OPUS CODEC for Morse Code Audio Over IP

5617
45
5
00:09:35
05.05.2017

using the LINUX CLI VOIP APP called SEREN, set to its lowest possible bit rate = 6000, which makes for a very poor cw note, ...so a test to regenerate this poor original tone - after being transmitted and received over SEREN's OPUS CODEC, ... how much the original tone could be improved by the CW REGEN technique using REAPER and a few of its own plugins...and not only can the tone be improved...can the original timing of the cw notes be preserved without degradation from the low bit rate opus codec's audio stream... see this video / notes for more info on LINUX NATIVE REAPER: 🤍 SEREN: 🤍 🤍 🤍

Send Morse Code Audio over ip from a laptop PC - to an iPHONE - using the free CleanFeed WebRTC APP

48
0
0
00:03:14
09.08.2021

🤍 using the CLEANfeed PC DESKTOP app....Morse Code Audio is sent over the internet via WEBrtc methods used by *cleanfeed*, to an iphone that is listening to the private P2P secure cleanfeed link that the PC DESKTOP cleanfeed APP provides, on its Safari browser

Experimental iPhone RTSP CLIENT Morse Code Audio over IP Receiver receiving QRQ CW from RTSP SERVER

23
0
0
00:00:35
07.10.2021

VLC has an ios version.... 🤍 an RTSP SERVER was setup on a PC and a Morse Code CW KEYBOARD was sending CW AUDIO into the input of the RTSP SERVER's audio input ports 🤍 this will also work well over a private , encrypted, secure, ZeroTier VPN(like) network setup, if both the iphone & the PC RTSP SERVER have ZeroTier installed/running... 🤍 for more info on QRQ CW, please see our website here: 🤍

IP Address in Morse Code

364
0
0
00:02:31
08.12.2016

Demonstrating reading the IP address of a Raspberry Pi via morse code. 🤍

Resonant CW Speaker for listening to Morse Code on an iPHONE - LIVE demo

10
0
0
00:00:44
26.01.2022

pvc tee is 1 1/4 inch diam TIN CAN allows the iphone to stick out of it just a bit to pick up the wifi wireless router's broadcast from FLdigi on a RASPBERRY PI 4 - sending CW AUDIO out over IP to the home 5G WiFi ROUTER - using SONObus 🤍

Raspberry PI - Morse Code Audio Over IP server - iambic paddles setup for an online CW NET

84
0
0
00:01:41
26.12.2017

this is a follow up video to the previous one about this topic: 🤍 where a CW KEYBOARD is used...this video shows the setup for hooking up an iambic paddle for use on this JackTrip AUDIO OVER IP SERVER cw net setup... since the JackTrip morse code audio over ip server is using a loopback function, so that all JackTrip client inputs go directly back to the JackTrip server's audio output - back again to all the JackTrip CW OP clients that are connected to the RazPi JackTrip server....and since there may be too much delay on hearing the loopback sidetone to key your paddles well... and so you can hear your sidetone in near zero low latency...you can use a direct local monitor setup to get near zero latency for hearing your sidetone when keying your paddles, ...however, even though you are using a direct local monitor to hear your sidetone in near zero latency, you will still hear your sidetone again when the JackTrip server bounces back your own sidetone back to you...so...to prevent this, an LV2 PLUGIN called DUCKA is used to silence your local JackTrip audio output just enough until that 2nd tone from the JackTrip server is finished transmitting your audio sidetone from its loopback function, on your own location/computer sound card...so by using the DUCKA LV2 PLUGIN you will then only hear your own sidetone using direct monitoring via the internal jackrouter ports connecting your MIC JACK or LINE INPUT JACK directly to the your sound card speaker output... the DUCKA plugin is easily adjusted to silence all of that 2nd delayed(🤍60 milliseconds on this video setup) sidetone bounce-back from the JackTrip server by muting your local JackTrip audio output until the 2nd tone from the server has finished sending its audio output from your sidetone on your local computer sound card system... 🤍 🤍 🤍 🤍

Morse Code "audio OVER ip" test with the BroadVoice BV16 codec - using Linphone through a VPN

37
1
0
00:04:13
27.06.2018

Brief test for for performance of using the BroadVoice audio codec for Morse Code Audio Tones using LINPHONE and a VPN SERVICE the VPN service adds and extra layer of challenges to preserving audio UDP packet integrity and allows a test from the LAN to the VPN in another state and then back here to the LAN - over the internet and all its HOPS/routers/and switches...etc... One OP is using LINUX LINPHONE and the other is using WINDOWS 10 LINPHONE audio codec used is the BroadVoice - "BV16" - 🤍 FREE The following list summarizes the attributes of the BroadVoice16 :(BV16 audio codec) - Low Delay (Latency): algorithmic buffering delay of merely 5 ms (compared with 15 to 40 ms of most competing codecs) - Low Complexity: much lower MIPS requirements than most competing codecs (typically 1/3 to 1/2 of comparable ITU-T G.72x codecs), also lower memory requirement than most competing codecs - High Quality: equivalent or better speech quality than most competing codecs in PESQ comparisons and in extensive formal subjective MOS listening tests conducted by AT&T Labs, COMSAT Labs, and Dynastat, Inc - Moderate Bit-Rate: at 2 bits/sample, coding efficiency is higher than G.711, G.726, and G.722 and comparable to many other codecs 🤍 RESULTS: the BV16 codec - going out over the internet through a VPN and coming back to this location - did a good job of handling all the challenges of preserving, intact, AUDIO OVER IP packets - to faithfully transfer Morse Code audio tones - from one place to another...

Raspberry Pi RTSP SERVER for Morse Code VLF RF over ip FULL DUPLEX CW NET operations - LIVE demo

61
0
0
00:05:00
07.04.2020

brief demo of using a Raspberry PI 2b as a SERVER for up to about 8 or 9 CWops to connect online and QSO. The PI SERVER uses the VLF RF BAND as its framework and each OP uses their own SDR APP to scan the RASPBERRY PI SERVER's VLF BAND from 1 Khz up to about 20 Khz. Each OP sends VLF RF CW to the RASPBERRY PI VLF SERVER at a VLF FREQUENCY from 1 Khz to about 20 Khz from their CW KEYING software system setup.... the VLF RF transmitted by every CW OP connecting to the RASPBERRY PI VLF RF SERVER, gets RE-transmitted to a small EMF PICK UP COIL connected to the PI's USB sound card LINE OUTPUT...which is back to back with another EMF PICKUP COIL that connects to the RASPBERRY PI's USB SOUND CARD's LINE INPUT...and all that input VLF RF from the 2nd EMF PICKUP COIL gets RE- transmitted back to each OP - over IP - using Gstreamer Scripts - VLF RF over IP you need an SDR APP that is able to use the sound card as its input a few that do this are QUISK SDR CUBIC SDR SDRSharp SAQrx SDR VLF Transmitter & Receiver experiments playlist: 🤍

How to send and receive morse code over the internet on Windows 10 : EhoCW

8929
60
2
00:09:53
29.01.2016

This video continues the windows 10, mumble-voicemeeter setup by adding a software cw keyer, EhoCW. Instead of having to use an external hardware cw keyer you can use this software cw keyer, EhoCW. to perform Iambic keying , straight key, and/or even a CW Keyboard all at the same time with just one App - EhoCW. LINKS: EHOcw 🤍 🤍 🤍 Breakaway RTA digital VU METERs and SCOPE 🤍 ANALOGUE STEREO VU METERS 🤍 NOTE: due to using virtualbox for my windows 10 demo, AND running the recording software AND my normal LINUX OPERATING system all at the same time, there are a few audio glitches you may hear. These audio artifacts would not be present otherwise.

send Morse Code over RemAud(by DF3CB)

655
2
0
00:02:17
04.11.2016

short demo of how morse code audio tones sound when using the REMOTE AUDIO STREAMING APP - RemAud by DF3CB. RemAud has at this time, 2 different codecs you can choose from: 1. PCM codec 2. GSM codec The GSM codec takes about 1.5 kBits bandwidth The PCM codec take about 16 kBits bandwidth The PCM codec sounds pretty good for copying cw audio notes over ip...The GSM however does not sound too good by itself and could use a little help, which is shown towards the end of this short video ...by REGENERATING the original cw using a 2nd software code practice oscillator. 🤍 THE PLUGINS used for regenerating the GSM driven cw notes: 1. the 1st plugin is a tight audio bandpass filter, centered on the same pitch as the morse code audio tones being received 2. the 2nd plugin is called LoudMax, to help keep the received audio volume on the CWCom receive path , at a very strict level in order to reliably and precisely "key" trigger the next plugin... ...Reagate 3. the 3rd plugin is called ReaGate , it takes the volume from LoudMax, and "just" triggers a GATE threshold, and once the plugin is triggered it will send out a data message in MIDI FORMAT to activate the sinewave synth - sineCW 4. sineCW is a virtual code practice oscillator with adjustable rise and fall times, Q, and Bandpass RE: CW REGENERATION... NOTE: the OS is Linux in this example, using WINE for the free VST HOST, Minihost Modular - which houses the 4 free VST plugins above...and using VIRTUALBOX/win10 for RemAudio in order to be able to enable the GSM CODEC. 🤍 🤍 🤍 🤍 🤍 NOTE: RemAud does work using WINE on LINUX, but on my linux mint 17.3, the GSM codec would not work, so i could only use the PCM codec.

QRQ CW - MORSE CODE Regeneration software - Live Demo

614
4
0
00:00:54
24.02.2017

This video demonstrates an A/B comparison of transmitting morse code audio tones over the internet using a NINJAM SERVER, where the CW audio quality is usually poor, with lots of pops and clicks...however, if you use the original audio from the output of the NINJAM CLIENT, and divert it first to a software APPLICATION in order to regenerate the original incoming tone into a new near "perfect" output tone... the cw audio tones sound pretty good NOTE: NINJAM is an AUDIO OVER IP application that uses the ogg vorbis codec NOTE: FLdigi is being used to send its cw audio tones over to the input of the 1st Ninjam Client transmitter(GREEN COLOR on the scope)...the 2nd Ninjam Client receiver(RED COLOR on the scope) is the one you are seeing on the oscilloscope and hearing the final audio output this is just a visual(oscilloscope) and A/B audio example to show how well the cw regeneration does at cleaning up the original poor audio from the output of Ninjam 🤍 THE BASIC METHOD: uses Reaper to regenerate using 3 Reaper plugins 1. REAGATE 2. REASYNTH 3 APPLE 12 POLE BANDPASS FILTER SEE other videos in this YouTube channel for more info of CW REGENERATION techniques TECHNICAL NOTE: FLdigi is using the RT CHANNEL QSK function in order to be able to trim 5.5 ms off of each element, then on the receiver's REAGATE PLUGIN, 5 ms are added to each element via REAGATES "HOLD" SETTING....this prevents micro dropouts from being heard in the regenerated cw audio

Experimental method for OPUS CODEC packet loss concealment - Morse Code Audio over ip example

237
4
0
00:01:04
14.06.2020

SETUP: using Gstreamer's IDENTITY MODULE 🤍 to simulate frequent packet loss...using the OPUS CODEC at 144k bitrate, and 2.5 ms frame-rate... a CW REGENERATION method was used to rebuild the lost packets over ip, using the app - TRIGGER MIDI MONO 🤍 CW AUDIO output sending by the CW KEYBOARD KEYER - the AD5DZ CW KEYBOARD 🤍 The ad5dz's cw keyboard's compensation setting was used to lower the element length of both the dit and the dah by the same amount of milliseconds...then it was increased on the TRIGGER MIDI MONO app to regain what was lost from the setting on the CW KEYER at 2.5 ms/opus codec frame-rate....it keeps a packet that is lost down to 2.5 milliseconds...which is then hidden/recovered by using TRIGGER MIDI MONO settings(as shown on video) to rebuild the CW lost packets by increasing the "holding" "ON/release TIME" of the TRIGGER MIDI MONO REGEN PROCESS - making up for the lost time created by the packet loss...and adjusted to sounds like "normal" CW dits & dahs at the speed of the sent CW from the source...

Morse Code QSO with Skype - software setup tutorial

1824
10
0
00:14:45
14.06.2014

This video demonstrates a setup for sending morse code audio tones over Skype to one or more cw ops.(up to 25 for a cw net over skype conference) THE LINKS MENTIONED IN THIS VIDEO ARE: 1. VoiceMeeter 🤍 2. ASIO BRIDGE 🤍 3. HI-PER-MITE cw audio bandpass filter 🤍 4. EhoCw 🤍 5. k1el k40 🤍 6. FLdigi 🤍

send Morse Code Audio over the Internet using FFMPEG and the OPUS CODEC - LIVE demo

61
2
0
00:11:19
25.08.2020

ffmpeg commands for this demo using terminal: TRANSMITTER:(1 audio CHANNEL) ffmpeg -guess_layout_max 0 -ac 1 -f jack -i ffmpeg -acodec libopus -ab 96k -cutoff 4000 -application lowdelay -frame_duration 40 -ac 1 -f rtp rtp://(EXTERNAL IP ADDRESS of receiver):1194 RECEIVER: * ffplay opusmono.sdp -protocol_whitelist file,udp,rtp NOTE: you have to make an SDP file from the SDP FILE text given in the transmitter terminal readout...and then use that for the RECEIVER(if you save it in your home folder you won't have to add extra directions to the terminal ffplay command script, to tell ffplay where the SDP file is) here is an example of the one that was used in this example on the pi 4: * file name = "opusmono.sdp" contents of file: ########################### v=0 o=- 0 0 IN IP4 127.0.0.1 s=No Name c=IN IP4 (your EXTERNAL IP ADDRESS OF your rx PC goes here) t=0 0 a=tool:libavformat 57.83.100 m=audio 1194 RTP/AVP 97 b=AS:96 a=rtpmap:97 opus/48000/2 ########################### DOWNLOAD FFMPEG windows, linux, mac 🤍 here is a followup video using WINDOWS 10 version of FFMPEG and sending cw with FLdigi at 60 wpm 🤍

Morse Code Audio QSO over the internet using "STUDIO-LINK" a free VST, AU, & LV2 plugin

174
2
2
00:02:54
07.10.2017

Short demo of a MORSE CODE AUDIO sidetone QSO over the internet between 2 CW OPS using the FREE LV2 plugin - STUDIO-LINK - 🤍 🤍 🤍 pretty simple...once you bring up the VST, LV2 or AU PLUGIN called STUDIO-LINK, it automatically brings up your default browser, and shows you the VU METERS for input and output and gives you a unique ID...you share that ID with your fellow CWops and then just enter their id in the browser's Studio-Link call box...call them...they answer...QSO all you need is a VST host(WINDOWS), LV2 host(LINUX) or AU plugin host(MAC) for more info on morse code audio qso over the internet see here: 🤍 for more info on qrq cw see here: 🤍

Назад
Что ищут прямо сейчас на
morse code over ip hyper wildberries бизнес оркадий п как заработать на вайлдберриз что даёт дискорд нитро ssh как продавать на wildberries плагины вкусно фарш автоблоггер как получить бесплатный дискорд нитро бой беркова ирина чики пики дискорд стикеры обзор чая купить аккаунт в доте дискорд бот scrap mechanic прятки прочее чил