[LAD] A question about LV2 audio

[Louigi Verona]

On Fri, Jun 18, 2010 at 12:24 PM, Ralf Mardorf
<ralf.mardorf at alice-dsl.net>wrote:

> Louigi Verona wrote:
>
>>
>>
>> On Fri, Jun 18, 2010 at 12:02 PM, Rui Nuno Capela <rncbc at rncbc.org<mailto:
>> rncbc at rncbc.org>> wrote:
>>
>>
>>
>>
>>    there's no limitation on lv2.
>>
>>    i think you misunderstood something, but any lv2 host has obvious
>>    access
>>    to the audio stream produced by _any_ plugin. how could it be
>>    otherwise?
>>
>>    your question seems to pertain on rendering audio that is produced
>>    by midi
>>    instrument plugins _faster_than_realtime_ .
>>
>>    i also think you are inferring from qtractor as the sequencer. that's
>>    true: qtractor cannot render midi instruments audio in no other
>>    way than
>>    real-time. so that for you to export the whole session (song or
>>    project)
>>    you'll have to bounce (record) all midi instruments audio output
>>    into spare
>>    audio tracks and then, when all is perfectly realigned to
>>    compensate for
>>    round-trip delay, you can mix-down and export all audio tracks into a
>>    single audio file.
>>
>>    theoretically, any jack-midi plugin host can do the
>>    faster-then-realtime
>>    trick, thanks to the jack-freewheel mode of operation. alas,
>>    qtractor is
>>    not a jack-midi host, although it does the freewheel dance to
>>    export audio,
>>    as ardour2 does. speaking of which, ardour3 may well confirm this
>>    theory ;)
>>
>>    cheers
>>    --
>>    rncbc aka Rui Nuno Capela
>>    rncbc at rncbc.org <mailto:rncbc at rncbc.org>
>>
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>>
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>>
>>
>>
>>
>> How is that done on Windows then? I never heard of any problems there?
>> When you use VST, it renders them fine
>> and Windows has no JACK.
>>
>> ps: sorry if my questions are silly, I really am trying to understand
>>
>
> Are you asking for doing a stereo mastering without playing and recording
> the song? I wonder if this is needed. Anyway, I'm not sure if I do
> understand what exactly you are asking for by the word 'rendering'. Is the
> host Qtractor? And do DSSI plugs what you want?  I guess 'we' do
> misunderstand what you're asking for, by your first email.
>


No, I mean hitting "Render all song to wav" and have everything in one file.

-- 
Louigi Verona
http://www.louigiverona.ru/
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