[LAD] mixing while using libao and libsndfile

David Griffith dave at 661.org
Tue May 17 08:26:17 UTC 2016

On Tue, 17 May 2016, Andrea Del Signore wrote:

> On Tue, May 17, 2016 at 12:25 AM, David Griffith <dave at 661.org> wrote:
> On Mon, 16 May 2016, Andrea Del Signore wrote:
> > I'm not simply trying to mix two files.  My main project is a
> > game engine in which two sounds are allowed at any one time. 
> > For instance, there can be constant background music punctuated
> > by sound effects.  I can't get these to mix correctly.
> Hi,
> in that case you can just skip the right number of frames before starting
> playing sounds.
> I modified my code to take the start time for each file and schedule the
> play time with frame accuracy.
> http://pastebin.com/0PMyfPvK
> If you want your timing to be sample accurate the algorithm is a bit more
> complex.

That won't work.  Your code schedules things ahead of time before anything 
else happens.  I need to be able to fire off sound effects the instant the 
player does something to cause them.  I can't know in advance.

David Griffith
dave at 661.org

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