[Cin] Waveform generation using ffmpeg filters

[preobraz at gmail.com]

Hello.

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.