Using setScoreOffsetSeconds() with sound-file playback.

[Andy Fillebrown]

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Hello again,

I'm having an issue getting 'csoundSetScoreOffsetSeconds' to work correctly when called on a .csd that uses the 'soundin' opcode.  After calling 'csoundSetScoreOffsetSeconds', the 'soundin' opcode still reads the sound-file from wherever it left off from the previous performance.  I've tried a few different ways of working around this, using 'loscil' with GEN01, 'diskin', 'diskin2', etc...  but they all do the same thing as 'soundin'.  Is there a way to play sound-files and still have them respond correctly to 'csoundSetScoreOffsetSeconds', without having to recompile the .csd?

Regards,
-andy.f

[Victor Lazzarini]

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The function does what it says on the tin: set score offset in seconds. This means
score events (midi events from a midifile too) nothing else. If your score event
has a p-field controlling skiptime, then you can use that.

Victor
----- Original Message -----
From: Andy Fillebrown <andy@...>
Date: Saturday, June 27, 2009 6:39 pm
Subject: [Csnd] Using setScoreOffsetSeconds() with sound-file playback.
To: csound@...

>

Hello again,
>
> I'm having an issue getting 'csoundSetScoreOffsetSeconds' to work correctly when called on a .csd that uses the 'soundin' opcode.  After calling 'csoundSetScoreOffsetSeconds', the 'soundin' opcode still reads the sound-file from wherever it left off from the previous performance.  I've tried a few different ways of working around this, using 'loscil' with GEN01, 'diskin', 'diskin2', etc...  but they all do the same thing as 'soundin'.  Is there a way to play sound-files and still have them respond correctly to 'csoundSetScoreOffsetSeconds', without having to recompile the .csd?
>
> Regards,
> -andy.f
>
>

Dr Victor Lazzarini, Senior Lecturer, Dept. of Music,
National University of Ireland, Maynooth

[Andy Fillebrown]

Thanks Victor,

I rewrote the .csd instrument with suggested p-field but I still couldn't get 'csoundSetScoreOffsetSeconds' to work until I sent the score statements programatically, instead of putting them in the .csd, like before.

Anyway... the playback system is working great now and it's much faster/cheaper than I was expecting -- I'm getting 50+ fps on 3d model operations during audio playback, even on my aging laptop -- which is a nice reminder of why dealing with csound's quirks is worth the trouble.  Wonderful, wonderful!!!  Csound proves it viability once again!

As a side note: I'm loving the discovery that csound adds volume envelopes when starting and stopping playback (no "pops" regardless of where start/stop occurs in the score).  It is a big relief knowing I don't have to code that -- especially after banging my head on the wall trying to get the playback system working.

Thanks again,
-andy.f



----- "Victor Lazzarini" <Victor.Lazzarini@...> wrote:

> The function does what it says on the tin: set score offset in
> seconds. This means
> score events (midi events from a midifile too) nothing else. If your
> score event
> has a p-field controlling skiptime, then you can use that.
>
> Victor
> ----- Original Message -----
> From: Andy Fillebrown <andy@...>
> Date: Saturday, June 27, 2009 6:39 pm
> Subject: [Csnd] Using setScoreOffsetSeconds() with sound-file
> playback.
> To: csound@...
>
> >
>
>
>
> Hello again,
> >
> > I'm having an issue getting 'csoundSetScoreOffsetSeconds' to work
> correctly when called on a .csd that uses the 'soundin' opcode. After
> calling 'csoundSetScoreOffsetSeconds', the 'soundin' opcode still
> reads the sound-file from wherever it left off from the previous
> performance. I've tried a few different ways of working around this,
> using 'loscil' with GEN01, 'diskin', 'diskin2', etc... but they all do
> the same thing as 'soundin'. Is there a way to play sound-files and
> still have them respond correctly to 'csoundSetScoreOffsetSeconds',
> without having to recompile the .csd?
> >
> > Regards,
> > -andy.f
> >
> >
>
> Dr Victor Lazzarini, Senior Lecturer, Dept. of Music,
> National University of Ireland, Maynooth

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