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playing sounds on turbo c++/pascal

Tue, 19 Jul 2005 14:16:56 -0700

well - im learning to make sounds on these old compiling systems and i found something that called DMA channel.
it determines the port i should sent the data to them to make the sound plaster playing a block of memory. in my computer my blaster tells me i need to use dma channel number one.

since i want to know what am i doing there and does not want to just remember it all i would like to know few things.

1)what is DMA channel?
2)can anybody send me list of possible commands to the dma ports, so i would how to use them (i got some short explenation but not a list of all the options i can set in).

by the way - anybody got any link to page that explanes the mp3 format or all the wav versions(i know how to read wav but not all of the wav files fit my wav header).

i can read pascal c++ or assembler so explenations and examples in these languages would be granted.

thank you
dolev

Re: playing sounds on turbo c++/pascal

Fri, 22 Jul 2005 02:48:26 -0700

: well - im learning to make sounds on these old compiling systems and i found something that called DMA channel.
: it determines the port i should sent the data to them to make the sound plaster playing a block of memory. in my computer my blaster tells me i need to use dma channel number one.
:
: since i want to know what am i doing there and does not want to just remember it all i would like to know few things.
:
: 1)what is DMA channel?
: 2)can anybody send me list of possible commands to the dma ports, so i would how to use them (i got some short explenation but not a list of all the options i can set in).
:
:
: by the way - anybody got any link to page that explanes the mp3 format or all the wav versions(i know how to read wav but not all of the wav files fit my wav header).
:
:
:
: i can read pascal c++ or assembler so explenations and examples in these languages would be granted.
:
: thank you
: dolev
:
Well due to my english I wouldn't fall in long "stories" so here:
http://www.ecscolorado.com/faqs/dmachannel.htm
http://216.239.59.104/search?q=cache:D64vdS-fYhIJ:www.analog.com/UploadedFiles/Associated_Docs /180512028fum_Chapter_11.pdf+%22DMA+ports%22&hl=hu
http://mpgedit.org/mpgedit/mpeg_format/MP3Format.html
http://replaygain.hydrogenaudio.org/wav_format.txt
****************
Any questions? Just ask!

GAASHIUS

Re: playing sounds on turbo c++/pascal

Fri, 22 Jul 2005 06:26:14 -0700

This message was edited by dolev9 at 2005-7-22 6:26:56

GREAT

thanks but half of the links does not work.

but 3 did:
one link explained very well the DMA channels.
one link explained the wav,
and another one explained the jpeg.
but yet i dont have the mp3 one... )-:

anyway - thanks

dolev

Re: playing sounds on turbo c++/pascal

Fri, 22 Jul 2005 10:07:29 -0700

: This message was edited by dolev9 at 2005-7-22 6:26:56

: GREAT
:
: thanks but half of the links does not work.
:
:
: but 3 did:
: one link explained very well the DMA channels.
: one link explained the wav,
: and another one explained the jpeg.
: but yet i dont have the mp3 one... )-:
:
: anyway - thanks
:
: dolev
:
:
:
For me all of the links worked - I use Firefox, maybe this causes the prob'.

****************
Any questions? Just ask!

GAASHIUS

Re: playing sounds on turbo c++/pascal

Mon, 31 Oct 2005 10:58:38 -0700

: This message was edited by dolev9 at 2005-7-22 6:26:56