[FFmpeg-user] show the audio waveform of a file

Paul B Mahol onemda at gmail.com
Wed Aug 25 14:50:55 EEST 2021

On Wed, Aug 25, 2021 at 11:22 AM Michael Koch <astroelectronic at t-online.de>

> Hi,
> is it possible to convert the waveform of an entire audio file (or a
> segment of it) to a picture?
> The "showwavespic" filter has the problem that for each sample it draws
> a line from +level to -level. For example, if the input is a +0.5 DC
> signal, I can't decide from the output picture if the level was +0.5 or
> -0.5. I need a filter that draws only a pixel for each sample. Like an
> oscilloscope.

If you have 65536x44100000 image sure.

> Michael
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-user
> To unsubscribe, visit link above, or email
> ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".

More information about the ffmpeg-user mailing list