[FFmpeg-user] ffmpeg audio resample filter.

[Daniel Carrasco Marín]

Thanks for reply,

I've read the first link, but the second link is what i want ;).

Thanks!!


2013/5/18 Timothy Gu <timothygu99 at gmail.com>

> On May 18, 2013 2:09 AM, "Daniel Carrasco Marín" <danielmadrid19 at gmail.com
> >
> wrote:
> >
> > Hi friends,
> >
> > I've found this command line to get higher quality conversion between
> > samplerates and i want to know if someone can help me to understand how
> > works and what is every option:
> >
> > -af aresample=osr=44100:filter_size=256:cutoff=1
> >
> > I've tried to found some about filter_size in google and i've not found
> any
> > interesting thing... I've found that -cutoff is for set bandwidth of
> audio
> > but i always know that, i want to know how works: for example, what
> happen
> > if i change cutoff=1 to cutoff=0.7 or cutoff=1.5, and how it affects to
> > final audio quality. I want the same with filter_size, what happen if i
> > change it to 200 or 300, and what osr mean in this command line?.
>
> Did you read the documentation?
>
> http://ffmpeg.org/ffmpeg-filters.html#aresample-1
>
> for the filter and
>
> http://ffmpeg.org/ffmpeg-resampler.html
>
> for the options meaning.
>
> Timothy G.
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