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Old 12-16-2004, 04:38 PM
Jaime Andrés Aranguren Cardona
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Default Re: Sample Rate Conversion (Downsampling)

> Yes - from what I remember it is a polyphase implementation.
> Cheers
> Bhaskar


Hi,

Thanks Jim, thanks Bhaskar, thank you everybody.

Yes, it definitely is polyphase implementation. To be honest, I was
expecting to see some code similar to mine, with a "viewable" input delay
line, and additional delay lines for the decimation of the samples, prior to
filtering, one filter per branch.

After a thorough study of the code and actually running (and debugging) it
on MSVC++ (which I couldn't do when I first replied to Jim), I could really
understand it... What a clean and beautiful implementation of decimation
filters, the polyphase way!

Although I am just up to integrate and test it with my SHARC code, it looks
like it won't be a source of confusion anymore!

I'll let you know how does it go.

Kindest regards,

--
Jaime Andrés Aranguren Cardona
[email protected]
SanJaaC Electronics
Soluciones en DSP
www.sanjaac.com

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