Re: [LAD] Jitter analysis

From: benravin <ben.alex@email-addr-hidden>
Date: Sun Sep 17 2017 - 17:53:46 EEST

David Olofson wrote
> On Sun, Sep 17, 2017 at 7:17 AM, benravin &lt;

> ben.alex@

> &gt; wrote:
> [...]
>> is indeed a slow varying timing jitter, for example every 400ms, the
>> timing
> [...]
>
> Context and environment...?
>
> Is there by any chance sample rate conversion going on somewhere?
> (Hardware or software; usually behaves in about the same manner.)
> Since buffer sizes in most environments need to stay fixed, and usually
> also have further restrictions, this tends to affect buffer/callback
> timing.
> As a result, input-to-process and process-to-output latency drift over
> time, and pop back (buffer drop, or extra buffer) on a regular basis.
>
> --
> //David Olofson - Consultant, Developer, Artist, Open Source Advocate
>
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Yes, sample rate conversion is done to adjust the drift in sample rate. But
this periodic timing errors are making the system to oscillate.

-----
-ben

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Received on Sun Sep 17 20:15:01 2017

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