5 # Connect your hardware MIDI device, or launch a virtual MIDI device like
8 # $ xset -r && vkeybd; xset r on
10 # Find out the port of the input MIDI device:
14 # client 128: 'Virtual Keyboard' [type=user,pid=25939]
15 # 0 'Virtual Keyboard'
17 # and have a lot of fun vocoding the crap out of your formant channel.
18 CARRIER_TONE="alsamidisrc ports=128:0 ! fluiddec synth-gain=1 ! audioconvert"
20 # Add some white noise to the carrier
21 CARRIER_PARAMS="$CARRIER_TONE ! carrier. audiotestsrc wave=5 volume=0.1 ! carrier."
22 CARRIER="adder name=carrier"
26 # Using vocoder_1337.so, in Debian it's available in the swh-plugins package.
27 gst-launch-1.0 -v interleave name=i ! \
28 capssetter caps="audio/x-raw,channels=2,channel-mask=(bitmask)0x3" ! audioconvert ! audioresample ! \
29 ladspa-vocoder-1337-so-vocoder \
49 $FORMANT ! audioconvert ! audioresample ! audio/x-raw, rate=44100, format=S16LE, channels=1 ! queue ! i.sink_0 \
50 $CARRIER ! audioconvert ! audioresample ! audio/x-raw, rate=44100, format=S16LE, channels=1 ! queue ! i.sink_1 \