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SV: [gbadev] Protracker   Message List  
Reply | Forward Message #5958 of 15019 |
Re: Re[2]: SV: [gbadev] Protracker

In message <425134868.20010731173523@...>
Vitaly Vidmirov <front@...> wrote:

> Hi Dennis!
>
> DR> Yes, that would indeed be better, i of course meant the highest played
> DR> rate... I guess, 22khz should be ok, but it seems that many commercial
> DR> games play there music at a much lower rate... (Which is something I
>
> Although i don't have a hardware, i think the ideal frequencies
> should be 16384-24576-32768-49152-65536 khz ;)
> This like "good" PC soundcards. They all use PWM DACs
> with fixed frequency (48khz). But we have more choice ;)

I'm not sure, whether 24576 and 49152 are really ideal, i think that
21845 (=65536/3) is, though.
I thought that it is best to have pwm_rate/sample_rate=integer.

> DR> hope will change in the future, as it is possible to play 8 channels
> DR> at 22khz using less than 20% processor time, which should be good enough
> DR> for nearly every game...)
>
> it could be faster
> say, 10-12 channels @ 22khz

Might be, i have so far only written a .mod player which plays 4 channels
(22khz) using 7% processor time, but it didn't feature free stereo
positions which i'd like to implement in my next player. The "8 chns in
<20%" is just an estimation, it might be slightly faster, but i don't
think you'll get 12 chns with free stereo (you didn't say anything about
stereo, of course...)

--
exoticorn/icebird



Wed Aug 1, 2001 4:58 pm

exoticorn@...
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Hi Dennis! DR> Yes, that would indeed be better, i of course meant the highest played DR> rate... I guess, 22khz should be ok, but it seems that many...
Vitaly Vidmirov
front@...
Send Email
Jul 31, 2001
4:26 pm

In message <425134868.20010731173523@...> ... I'm not sure, whether 24576 and 49152 are really ideal, i think that 21845 (=65536/3) is, though. I thought...
Dennis Ranke
exoticorn@...
Send Email
Aug 1, 2001
7:59 am

... of Um, that means you'd only ever be able to play at middle c and below! :) Normal mod samples are at 12-somethingKHZ and at middle C as I remember. They...
James Boulton
jim@...
Send Email
Jul 31, 2001
12:37 pm

The player is going at around 15000hz at the moment... It wont go any faster cos its too slow as its written in C and runs from rom. Now that I understand how...
Paul Carter
paul.carter2@...
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Jul 31, 2001
12:37 pm
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