Hello,
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 :
equalizer=f=7000:t=q:w=2:g=2,equalizer=f=1000:t=q:w=1:g=3,equalizer=f=80:t=q:w=2:g=-30
in the following command :
ffmpeg -re -i /home/dr_click/live.wav -acodec pcm_s16be -ar 44100 -ac 2
-f rtp -af
"equalizer=f=7000:t=q:w=2:g=2,equalizer=f=1000:t=q:w=1:g=3,equalizer=f=80:t=q:w=2:g=-30"
rtp://127.0.0.1:1234
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.
Thank you for your help,
Nicolas
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