23 May
2010
23 May
'10
12:52 a.m.
Jörn Nettingsmeier wrote:
I really don't think any modification is necessary.
Erik
--
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Erik de Castro Lopo
http://www.mega-nerd.com/
i found that. but when i'm trying with
sndfile-resample (using the -by
parameter), i get an integer target sample rate (or at least, that's
what the output claims),
Thats a limitation of libsndfile, not libsamplerate. libsndfile only
allows integer samplerates. Of all the sound file formats libsndfile
supports, only AIFF supports floating point sample rates.
which is what confused me. plus it seems that
the target sample rate in the SRC structure is an int, not a double, so
i don't understand how arbitrary ratios could be represented...
In sndfile-resample.c :
else if (strcmp (argv [k], "-by") == 0)
{ k ++ ;
src_ratio = atof (argv [k]) ;
}
and that value is passed unmolested to libsamplerate.
However, the samplerate of the output file is still an integer.
b)
Internally, the time distance between samples is also calcutated
in double floating point.
great. so it looks like a minor hack to sndfile-resample to get what i want.