[sdiy] resampling wav files

[Richie Burnett]

Eric, What resampling method does octave  use internally? Sinc? Linear interpolation? Etc...

---- Eric Brombaugh wrote ----

>Install a copy of Gnu Octave:
>
>https://www.gnu.org/software/octave/
>
>Write a quick script to read a .wav file, resample and write it out. Use 
>these functions:
>
>y = wavread (filename)
>
>[y, h] = resample (x, p, q)
>
>wavwrite (y, filename)
>
>Done.
>
>
>
>On 04/19/2018 10:29 AM, Tim Ressel wrote:
>> Hi,
>> 
>> Looks like there's some DSP in my future. I need to resample wave files 
>> to get them from 600 samples down to 256 samples. Unless there is a 
>> groovy toll out there that can do that, I gotta write an app for it. As 
>> far as I can tell I need to interpolate 32x and then decimate 75x, with 
>> all the attendant filters that these processes need. I know just enough 
>> DSP to be dangerous.
>> 
>> Thoughts?
>> 
>
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