[FFmpeg-user] Frequency response of an ffmpeg equalizer filter
Paul B Mahol
onemda at gmail.com
Fri Jun 26 19:15:04 EEST 2020
On 6/26/20, Nicolas VAMBAIRGUE <nicolas2020 at nv76.info> wrote:
> I'm starting to use the ffmpeg filters, using the documentation. It
> seems working but, I don't find the way to get the frequency response of
> a filter. For example, let's say I'm applying this filter :
> in the following command :
> ffmpeg -re -i /home/dr_click/live.wav -acodec pcm_s16be -ar 44100 -ac 2
> -f rtp -af
> It works, I'm hearing a distorted sound. And what I'd like to know, with
> such a filter, is the db gain for the 2000 Hz signal or for the 150Hz
> signal or any other frequency with a query like : give me your frequency
> and I'll tell you which gain is applied at this frequency with the
> defined filter.
Yes, with anequalizer filter.
> Thank you for your help,
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