Re: batch sox process on a folder of files

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Hi Jan,

I sample my hydrophone array at 500 kHz, 2 ch, 16 bit using a National Instruments USB-6251 DAQ.  This is when recording marine mammal echolocation.  Some species click at high frequencies (e.g. harbour porpoise at 140 kHz), hence the high sampling rate.  For some analyses when I don't need the higher frequencies, I resample at a lower rate because it's easier on PC resources and I can use shorter fast Fourier transform windows to look at spectrograms of the sounds in frequency domaine.

Chris

Sent from my iPhone

> On 30 Jun 2017, at 17:26, Jan Stary <hans@xxxxxxxx> wrote:
> 
>> On Jun 30 14:29:01, cp@xxxxxxxxxxxxxx wrote:
>> I use sox to simply resample wav-format files
>> from 500 kHz to 48 kHz sampling rate.
> 
> Can you please share how you obtain 500kHz srate audio and how you use them?
> (Or why you convert them to 48kHz first?)
> 
>    Jan
> 
> 
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