New AHI driver

amiga · 14 February 2009, 12:33

Hi Toni!
When do u plan to release the new AHI driver you're working on ?
And can u tell me what the features will be ?

Toni Wilen · 18 February 2009, 13:37

There are some unsolved problems. Original plan was simple "AHI wrapper" (no software mixing etc..) but AHI and "modern" sound APIs aren't compatible enough.

AHI allows very short samples without gaps, for example: play sample x1 with rate y2, queue sample x2 with rate y2 (and so on..)

DS or OpenAL etc don't have proper support for sample "queueing" -> "AHI wrapper" has to do internal timing and resampling. Annoying.

(yes, OpenAL can queue samples but it really won't work with very short samples and it has other restrictions, like sample rate can't be accurately changed on the fly)

14 February 2009, 12:33	#1
amiga Registered User Join Date: Aug 2004 Location: Amiga_land Posts: 443	New AHI driver Hi Toni! When do u plan to release the new AHI driver you're working on ? And can u tell me what the features will be ?

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18 February 2009, 13:37	#2
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,502	There are some unsolved problems. Original plan was simple "AHI wrapper" (no software mixing etc..) but AHI and "modern" sound APIs aren't compatible enough. AHI allows very short samples without gaps, for example: play sample x1 with rate y2, queue sample x2 with rate y2 (and so on..) DS or OpenAL etc don't have proper support for sample "queueing" -> "AHI wrapper" has to do internal timing and resampling. Annoying. (yes, OpenAL can queue samples but it really won't work with very short samples and it has other restrictions, like sample rate can't be accurately changed on the fly)

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