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Re: [Discuss-gnuradio] Rational resampler

From: Eric Blossom
Subject: Re: [Discuss-gnuradio] Rational resampler
Date: Wed, 8 Mar 2006 08:38:29 -0800
User-agent: Mutt/1.5.9i

On Wed, Mar 08, 2006 at 07:56:11AM -0500, Marcus Leech wrote:
> I'm trying to re-sample signals, ranging from 0.5Hz up to about 40Hz, 
> sampling them at some small
> integer multiple of their frequency.   Simple decimation isn't getting 
> close enough, in many circumstances,
> leaving a significant phase erorr.
> I'm thinking that I can get closer using the rational resampler block, 
> but I need more guidance than the  online documentation can give me.  Any 
> clues?

Did you see gnuradio-examples/python/audio/test_resampler.py?
It just works ;)

> My input sampling rate is from the audio card--16Khz to 48Khz.  My 
> output sampling rate should be
>  a small multiple (16 or 32) of the desired pulse frequency (0.5Hz to 
> 40Hz, depending on which object
>  I'm trying to observe).


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