Ugin, GG says that using F_aeval is easier.  Because F_sine "sine function seems to restart at every frame buffer".  A screen shot of the set up is at:

   https://www.datafilehost.com/d/d218ffdb

For aeval, note the playback buffer sample.  And in case you can not see the png file, you will see with the aeval setup, the default is 440 + something else, so remove the something else to get just the 440.   gg/Phyllis

I'm trying to generate a 440 Hz sound with the help of FFmpeg of ffmpeg
-f lavfi -i "sine=frequency=440:duration=5" test.wav type, but the
waveform is: https://www.datafilehost.com/d/ea27d7ec
Does Cinelerra incorrectly process the generation, or do I need to
change something in the settings?

Ugin.
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