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Hiring an expert to create a new audio driver (Z80 based) - Hired and solved!

Posted: Fri Aug 27, 2021 12:02 pm
by masteries
Greetings mates,

After a week trying to write my own custom driver, with bad results;
its a very challenging task for a person that is used only to C language and a bit of 68k assembly


I decide to make this proposition:

3x ADPCM channels driver at 16 KHz ( 200€ ), or 14 KHz (170€)

integrated into current SGDK release, SGDK 1.65

Typical set of functions is required, such "start_play", "is_playing_channel", "stop_channel"...

Volume functions are not required,
Loops playback is also needed,

Briefly the same functionality of 2 ADPCM driver, but intended for 3 channels at 16 KHz, or 14 KHz if you can't manage it at 16 KHz


Thanks in advance,

Contact via private message,

Best,

Re: Hiring an expert to create a new audio driver (Z80 based)

Posted: Tue Sep 21, 2021 6:45 pm
by Miquel
First be sure to check if that if physically possible. Then check if this configuration can work with your program/game running on.

Re: Hiring an expert to create a new audio driver (Z80 based)

Posted: Fri Dec 03, 2021 5:04 pm
by masteries
Problem solved!

A Z80 expert was hired; a programmer that worked for ZX Spectrum, Amtrad CPC and Genesis / MegaDrive

Its nationality is Argentinian,


There is also an implementation of a software audio filter, depending in the console model, due to MegaDrive 2 / Genesis 2 has worst audio output stage, this implementation is very helpful

He did a very good job, 3x ADPCM channels at 16 KHz;
sounds perfect!