24 Aug
2014
24 Aug
'14
7:48 p.m.
I have a USB
DAC that can only handle 16/44.1 as input and output. I
think ALSA will resample everything to 16/44.1 automatically, but I'd
Normally, the application connecting to ALSA looks at the port to find out
what sample rates it can do and adjusts accordingly. Any recording
application should lock to the interface rate with no resampleing. MP3s,
Oggs and other compressed/lossy formats do internal resampling/filtering to
match the desired output sampling rate anyway, but most of them are 44.1k to
begin with. Wav files and flac and other no lossy formates are the only ones
where resampling is needed if they are not already 44.1k. In general any wav
files will be ones you recorded and already be the right sample rate.
I think what I am saying is that for most cases the sample rate of your
audio IF doesn't matter. So adding resampling to everything doesn't make
sense... maybe try without first.