Path: chuka.playstation.co.uk!scea!greg_labrec@interactive.sony.com
From: "Mr. Dave Krampitz" <krampitz@dfwmm.net>
Newsgroups: scea.yaroze.programming.sound
Subject: Re: Which function Plays Sound effects?
Date: Sun, 13 Jul 1997 22:44:11 -0500
Organization: SCEA Net Yaroze News
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Hello, I am in the same boat as colin adams.  I too have done everything
that colin has, including trying to us the SsUtKeyOn command as
specified below by Stuart (SsUtKeyOn(status, 0, 0, 60, 0, 127,127);).  

But still, we have no sound.  SsUtKeyOn returns 0, which indicates a
voice number was assigned successfully, but there is no sound from the
t.v.  I am not sure what the problem is, any ideas?

Another question:  Why does note/pitch have to be specified for a sound
effect, i.e. a wave file (vag in vab) of a gunshot, for example?  In
other words, how does the note parameter have any bearing on the way a
gunshot sound will be heard?  I guess this is wear the major confusion
lays.

Could you please let me know where I am going wrong? 

Thanks much!

Dave
krampitz@dfwmm.net




Developer Support wrote:
> 
> colin adams wrote:
> >
> > I am at the Sound Effects Stage in my project. Although
> > I have read all of the stuff on sound in the manuals, I still
> > cannot play single sound effects, i.e. gunshots ect.
> >
> > This is the situation-:
> >
> > 1. I have converted my *.wavs to *.vags.
> >
> > 2. I have converted my *.vags to *.vab.
> >
> > 3. I have split them into vb & vh data forms.
> >
> > 4. I verified them by playing them in a simple *.seq
> >    via vabplay (can't you play them singly?)
> >
> > 5. I have loaded them to SRAM via SsVabTransfer i.e.
> >  status=SsVabTransfer((u_char*)vh_address,(u_char*)vb_address,1,1);
> >  status returns 1 so its OK.
> >
> > 6. Which function Plays Them as single sound effects?
> >
> > I played around with SsUtKeyOn() with no success, but I was confused
> > as to certain parameters which needed to be passed. if this is the
> > function which plays them could someone explain the parameters tone,
> > note, fine? This problem is holding up my Development time as my demo is
> > almost finished, & f****ing good it is too.
> >
> > Thanks in Advance
> >
> > --
> > Cobra
> 
> Yes it is SsUtKeyOn() that plays single notes. The parameters are:
> 
> short vabld, the VAB number as returned by SsVabTransfer (this will be
> the variable 'status' in your case).
> 
> short prog, the program number, this is where it starts to get
> confusing. Your VAB is broken down into sections called programs and
> each of the programs contains tones.
> 
> short tone, the tone number, the tone is contained within a program.
> 
> short note, this is the actual note to play, I believe 60 is middle C.
> 
> short fine, this adds fine pitch detail to the note playing.
> 
> short voll, left volume.
> 
> short volr, right volume.
> 
> So program and tone just tell you where in the VAB your sound is, while
> note and fine do the actual sound.
> 
> Your call to SsUtKeyOn should look something like this,
> voice = SsUtKeyOn(status, 0, 0, 60, 0, 127,127);
> This should play the first sound, middle C.
> 
> Hope this helps, if not I'll knock up a bit of code.
> 
> Stuart