17 May
2016
17 May
'16
2:08 p.m.
Your design is way too simple and fundamentally wrong.
If you want low latency you need to use a pull model (aka callback model)
for audio i/o to the device. Let the device tell you when it wants audio
data, and deliver it,on time, without blocking (which means no on-demand
file i/o in the same thread as the device audio i/o). See
http://www.rossbencina.com/code/real-time-audio-programming-101-time-waits-…
On Tue, May 17, 2016 at 4:26 AM, David Griffith <dave(a)661.org> wrote:
On Tue, 17 May 2016, Andrea Del Signore wrote:
On Tue, May 17, 2016 at 12:25 AM, David Griffith <dave(a)661.org> wrote:
On Mon, 16 May 2016, Andrea Del Signore wrote:
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(a)661.org
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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.