QRQ CW - encoded with the AC3 audio compression CODEC using Gstreamer - surprising good results

[Chuck aa0hw]

using Gstreamer to encode & decode Live Morse Code audio from the audio output of the AD5DZ software CW KEYBOARD...and then send it out on the network as UDP PACKETS...receive, decode and playback...
- really excellent quality CW AUDIO resulted from this AC3 ENCODING/DECODING test with pretty low network bandwidth traffic requirements at only @ 13 KiB as seen on bmon

TRANSMIT AC3 via GSTREAMER PIPELINE SCRIPT
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gst-launch-1.0 -v jackaudiosrc ! queue ! "audio/x-raw,channels=1" ! audioconvert ! avenc_ac3 ! queue ! udpsink host=(IP ADDRESS OF THE RECEIVER) port=6666

RECEIVE AC3 via GSTREAMER PIPELINE SCRIPT
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gst-launch-1.0 -v udpsrc port=6666 ! "audio/x-ac3, channels=(int)1, rate=(int)48000" ! avdec_ac3 ! audioconvert ! jackaudiosink buffer-time=10000

NOTE: no extra CW AUDIO filters were used on the RECEIVE AUDIO...the SPECTRUM analysis and CW WAVE SHAPE on the SCOPE were exactly as shown on this video without adding anything to the RECEIVE AUDIO...surprising, since most other audio compression codecs will add some above band and below band noise etc...