Re: Jamin issue?

On 11/17/05, Sampo Savolainen <[email protected]> wrote:
> Hi
>
> Today I finished a mix and mastered the session with Jamin. Jamin was
> used as an insert in ardours' master bus.
>
> After exporting I noticed that there was a strange anomaly in the
> exported audio. I restarted ardour & jamin and started investigating. It
> seems that about 10-20% of the time the anomaly happened and the rest of
> the time it sounded fine.

Sampo told me on IRC the periodsize he used was 128 here.

I've been meaning to post here because I believe Jamin is broken when
freewheeling using the separate DSP thread mode of operation.   I
haven't scoured the code yet, but other people have run into the issue
during ardour exports through Jamin.  The glitches don't occur at
large period sizes when jamin does the DSP in the audio thread.

JACK freewheeling state is a special case which clients should
recognize and alter their behavior if necessary.  Of course most
clients don't need to, but tricky ones like jamin just might.

jlc


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