AHI and dynamic samples (MAME sound)

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Spirantho

Posted on: 2015/4/28 7:13 #1

Quite a regular

Hi everybody,

I'm playing around with sound for my MAME port at the moment.

Can someone tell me please how to work out the current play pointer if the stream? I need to know where in my buffer to start putting my data.
Alternatively I could do it with double-buffered audio but I want to keep latency down to a minimum.

Is there good example source I can look at to see how this should be done?
Thanks!

--
Ian Gledhill
ian.gledhill@btinternit.com (except it should be internEt of course...!)
Check out my company's shop: http://www.mutant-caterpillar.co.uk/shop/ - specialising in Sinclair Spectrums but will be adding Amigas!

Deniil

Re: AHI and dynamic samples (MAME sound)

Posted on: 2015/4/28 15:11 #2

Quite a regular

Do you have one huge buffer that is continuously playing, and you like to insert data at-position-'now' whenever there is data?

You could use double-buffer and always insert data in the middle, then you get half the latency, but risk missing the start of a sound :)

Software developer for Amiga OS3 and OS4.
Develops for OnyxSoft and the Amiga using E and C and occasionally C++

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