----- Original Message ----- From: "Carl Eugen Hoyos" <[email protected]>
To: <[email protected]>
Sent: Tuesday, April 12, 2016 1:42 PM
Subject: Re: [FFmpeg-user] Segment sound to multiple Waveform images


Bouke (VideoToolShed <bouke <at> videotoolshed.com> writes:

ffmpeg.exe -i K:\test\test.wav -f segment -segment_time 8 -filter_complex
"aformat=channel_layouts=mono,compand,showwavespic=s=640x120"
-f image2 K:\test\test_%03d.png

However, this gives me just one file, showing the entire
duration of the sound clip. What am I missing here?

I didn't test but it seems there are two different filters
with similar names: Maybe try showwaves?

Hi Carl,
Tried that, showwaves has a way of setting the FPS, so with that the whole segment is defeated. That would not be bad, but sadly, the resolution is so low that with large segments (I need app. 23 seconds), the image stays blank...
(and fps and resolution are not to be combined according to the docs..)

Bouke

Carl Eugen

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