anoisesrc: noises of several colors, e.g.The other section sunder Audio sources document other useful sound generation algorithms in addition to sine, e.g.: Play forever until you go mad: ffplay -f lavfi -i "sine=frequency=1000" -nodisp Play the audio for 5 seconds without creating a file: ffplay -f lavfi -i "sine=frequency=1000:duration=5" -autoexit -nodisp The file will be 2x as large, and ffprobe will say it has 2 channels instead of 1 channel. Stereo instead with -ac 2: ffmpeg -f lavfi -i "sine=frequency=1000:duration=5" -ac 2 out.wav Create a 5 seconds mono 1000Hz sinusoidal out.wav sound file: sudo apt-get install ffmpegįfmpeg -f lavfi -i "sine=frequency=1000:duration=5" out.wav
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