Polyphonic sound

Victor · Joined: 27 Oct 2003 Posts: 12

Is it possible to play polyphonic sound with 16F628 or even 16F630 (no H/W PWM)?
I have try Ex_tone.c, but it is single tone and not so impress to me.
I have try PICSound by Roman Black, but it require a lot of memory.

Search on the forum, mark r. hahn provide a method by cycle thru the tables at the appropriate rates; add the samples from each table together
and dump the result to some kind of D to A device. (or PWM)

const byte square[] = {
0x64,0x64,0x64,0x64,0x00,0x00,0x00,0x00
};

const byte triangle[] = {
0x00,0x16,0x32,0x48,0x64,0x48,0x32,0x16
}

But I like to generate "Jingle bell" sound, if to using above method,
what waveform and rate I need to generate that kind of "bell" sound?
Or can someone show me other possible method on generate "bell" sound?

Victor · Joined: 27 Oct 2003 Posts: 12

Can anyone give me some hints? Crying or Very sad

Thank you.....

thushi · Joined: 22 Feb 2006 Posts: 14

Did you find the solution? I also wants to generate Bell sound using PIC.

Thank you

treitmey · Joined: 23 Jan 2004 Posts: 1094 Location: Appleton,WI USA

http://www.ccsinfo.com/forum/viewtopic.php?t=22010