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sound question
http://board.kolibrios.org/viewtopic.php?f=38&t=2463
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Author:  macgub [ Mon Oct 28, 2013 3:32 pm ]
Post subject:  sound question

sound question.
Hi all.
I have a question. How ac97snd generates sound? Througt mpu port? I think rather not, (it offers only 1 byte data width ). I saw sources, but I can't find this. So if not throght mpu port, so how? Other words witch system function suport audio codec. Internal speaker :D :?:
Thanks for answer.

Author:  hidnplayr [ Mon Oct 28, 2013 4:20 pm ]
Post subject:  Re: sound question

There is a sound system called 'infinity.obj'.
This service works with the driver 'sound.obj' (Well, the current sound.obj is not a real driver, instead it's a service which detect available pci sound cards, and loads the actual driver)

Image

Author:  macgub [ Tue Oct 29, 2013 11:50 am ]
Post subject:  Re: sound question

So for if I want write a sound app I must use driver, not system function (interrupt).
Thanks a lot.

Author:  hidnplayr [ Tue Oct 29, 2013 12:07 pm ]
Post subject:  Re: sound question

You'll need to use system functions 68, 16 and 68, 17 to load and work with infinity.obj

Author:  Asper [ Tue Oct 29, 2013 11:08 pm ]
Post subject:  Re: sound question

New game landing can be used as an example of asm application that outputs sound.

Author:  macgub [ Tue Nov 05, 2013 10:35 am ]
Post subject:  Re: sound question

Thanks all for help.

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