[LAD] Resampling: SOX vs FFmpeg

Louigi Verona louigi.verona at gmail.com
Thu May 23 16:41:36 CEST 2019


Is this so? Or should it be specifically compiled with the SoX library?

Louigi Verona
https://louigiverona.com/


On Thu, May 23, 2019 at 4:39 PM Paul Davis <paul at linuxaudiosystems.com>
wrote:

> The good news is that ffmpeg appears to include the soxr algorithm anyway.
>
> On Thu, May 23, 2019 at 7:58 AM Louigi Verona <louigi.verona at gmail.com>
> wrote:
>
>> "In terms of quality for resampling, this is the canonical information
>> source: http://src.infinitewave.ca/"
>>
>> Yep, was looking at that. But would appreciate any additional insight,
>> since I am not entirely sure how to read that. For instance, if I compare
>> SoX to FFmpeg, yes, SoX looks way better in this particular case. Question
>> is - are these meaningful differences?
>>
>> Also, the test goes from 96kHz back to 44.1kHz, and people very rarely
>> upload 96kHz.
>>
>> So, I would mostly be interested in 48->44.1 and 44.1->44.1.
>> Specifically, does anything change in the latter case?
>>
>
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