playback wav buffer on Mac.

[Jerry]

HI,friends:
_I am sorry that my topic may be not supposed here,but,I like here and
just know few places in all groups._

I want to playback wave buffer on mac. in realtime.
so,I divide the buffer of a wave data into small parts for playback.

the problem is:
when I define PCM_FRAME_SIZE as the value 4096 or 4096 mutiplied by an
int.the playback routine "play" the wave buffer and I can hear the
sound.
but when other values were assigned to PCM_FRAME_SIZE, for example,
#define PCM_BUFFER_SIZE 400 //as below
the routine will be terminated by the system with signal 10,or
signal11.

Q:___Are there any contrains on Mac. of sound manager(concern ed with
buffer)?___
---------------------------------------------------
p-codes for ref.
----------------------------------------------------
#define PCM_FRAME_SIZE 400
int i=0;
while(i not over buffer){
channelptr ch=nil;
sndlisthandle header;
memcpy(desBuf+P CM_FRAME_SIZE*i ,srcBuf+PCM_FRA ME_SIZE*i,sizeo f
(char)*PCM_FRAM E_SIZE);
//it's confirmed that srcBuf contains the real wav data,
//I got it using debuger.
setupsndheader( header...,...,. ..,...,PCM_FRAM E_SIZE,&hdrlen) ;
sndnewchannel(& ch,false);
sndplay(ch,fals e);
disposechannel( ch,false);
disposehandle(( handle)header);
i++;
}

[Grumble]

Jerry wrote:

_I am sorry that my topic may be not supposed here, but I like here
and just know few places in all groups._

Just when you thought September had finally ended... Damn you Google!

<sigh>

[Keith Thompson]

"Jerry" <zi****@gmail.c om> writes:
[...]

Q:___Are there any contrains on Mac. of sound manager(concern ed with
buffer)?___

We have no idea. There are a number of comp.sys.mac.* newsgroups; try
one of them.

--
Keith Thompson (The_Other_Keit h) ks***@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this.