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fixed sound readme again

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Paul Dino Jones 2025-01-19 09:57:23 -05:00
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README.md
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@ -79,9 +79,9 @@ pactl list sinks | grep -E -i 'index:|name:' -A 4
``` ```
One can generate sample sine waves at specific frequency on a specific channel on a specific sound card with this command (change -d to the Name of your desired target card and change 440 to any frequency) One can generate sample sine waves at specific frequency on a specific channel on a specific sound card with this command (change -d to the Name of your desired target card and change 440 to any frequency)
``` ```
ffmpeg -f lavfi -i "sine=f=440" -af "pan=7.1|c1=c0,surround=level_out=10" -f wav pipe:1 | paplay --no-remap --no-remix -d alsa_output.pci-0000_00_1b.0.analog-stereo -n "Monocoque" --stream-name="Haptic Test" ffmpeg -f lavfi -i "sine=f=440" -af "pan=7.1|c1=c0" -f wav pipe:1 | paplay --no-remap --no-remix -d alsa_output.pci-0000_00_1b.0.analog-stereo --volume=65536 -n "Monocoque" --stream-name="Haptic Test"
``` ```
(the -n and --stream-name are optional but it helps you identify the stream in pavucontrol) (BE CAREFUL!!! AS THIS SETS THE MAXIMUM STREAM VOLUME!!! the -n and --stream-name are optional but it helps you identify the stream in pavucontrol)
The channel map from the pactl command is the order of channels. Change c1 in this above command to the desired output channel. The channel map from the pactl command is the order of channels. Change c1 in this above command to the desired output channel.
The effects generated by monocoque should match the effects generated by this ffmpeg command. The frequency will differ slightly due to having to [fit in the buffer size](https://stackoverflow.com/questions/40078417/how-to-calculate-minimum-cycles-of-sine-wave-to-have-integer-n-cycles-in-a-buffe) The effects generated by monocoque should match the effects generated by this ffmpeg command. The frequency will differ slightly due to having to [fit in the buffer size](https://stackoverflow.com/questions/40078417/how-to-calculate-minimum-cycles-of-sine-wave-to-have-integer-n-cycles-in-a-buffe)