Re: [LAD] Drift compensation document

From: Fons Adriaensen <fons@email-addr-hidden>
Date: Sun Sep 03 2017 - 16:34:12 EEST

On Sat, Sep 02, 2017 at 11:54:15AM -0400, Fred Gleason wrote:
 
> One approach that I’ve used with good success here is to run
> the decoded PCM through a FIFO buffer between the SRC and the
> play-out stages and then use the size of that FIFO (which will
> change dynamically in response to things like network congestion)
> to feed a PLL that drives the converter ratio for the SRC stage.

Which is what zita-ajbridge and njbridge do in software.
The difference is that since data enters and leaves the
fifo in blocks of samples and not as a constant rate stream
it's a bit more involved to obtain the (average) FIFO size.

Ciao,

-- 
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)
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Received on Sun Sep 3 20:15:01 2017

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