SPIN WAV Player

[Rayman]

Ok, it only plays mono and at a fairly low sample rate of 16 ksps.

But, for SPIN, I think it's pretty impressive!

Fairly light on used resources too... (so can be included in other programs...)

I've included a few samples.

Files must be PCM WAV mono @ 16000 to play right

You'll need an SD card installed to use this...· (because it plays from the SD card)

[Oldbitcollector (Jeff)]

Sweet! I'm looking forward to trying this tonight!

Oldbitcollector

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Buttons . . . check. Dials . . . check. Switches . . . check. Little colored lights . . . check.

— Calvin, of 'Calvin and Hobbes.

[Rayman]

Here's a minimal version without VGA output.

If you already have Rockiki's SD card object in your project, this code only adds 334 longs...

[Rayman]

Here's another sample...· About 1 minute clip from Feist's "1234".

File size at this rate is about 2 MB/minute...· So, a 1 GB SD card should hold 8 hours of sound.


Also, I made a few notes here:
http://www.rayslogic.com/propeller/P...ng/dac/dac.htm


Post Edited (Rayman) : 11/9/2007 8:54:41 PM GMT

[Spork Frog]

Just tried it out, works great! A little muddy sounding on my speakers, but I know that's a combination of a lot of different things (mainly really cheap speakers.)

Looking at your code, I didn't realize doing something like this was just that simple.

[Rayman]

Thanks for trying it. As far as quality goes, I used the Demo board and powered speakers and the file sounded (to me) exactly the same as it did when played by my computer. Of course, the fairly low sample rate does reduce the quality a bit.

Simplicity was the goal with this code. I want to include some sounds in an already bloated project, so it had to be small. Still, there are a few tricks in there that my not be so obvious...

[Harrison.]

It works great! I just resampled 4 mp3s into 'PCM signed 16bit mono @ 16ksps' and it sounds great! In fact, this sounds better then the music coming from games like Counter-Strike 1.6 / HL1.

Now I'll have to figure out how to use this (might be a nice thing to put under the Christmas tree or something).

Harrison

Post Edited (Harrison.) : 11/10/2007 1:45:17 AM GMT

[Oldbitcollector (Jeff)]

Works perfectly! File sounds exactly as it did on the PC. I'm getting a couple initial clicks at the
beginning of the sound file now when I reduced the buffer size, but otherwise perfect!

Now I've just got to figure out the changes that the Femto version of fsrw has to place this into PropDOS.

The propeller just blows me away... :)

Oldbitcollector

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Buttons . . . check. Dials . . . check. Switches . . . check. Little colored lights . . . check.

— Calvin, of 'Calvin and Hobbes.

[Oldbitcollector (Jeff)]

@Rayman:

Is there any other way I can detect for the end of the wav file? I seem to be loosing it in PropDOS for some reason.

your current line is: repeat while (j==buffsize*2) 'repeat until end of file

It looks like the end is never found... Is there an alternative I can set a watchpoint for?

updated

Ah ha!

j > 0 works just fine...


Thanks
Oldbit

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Buttons . . . check. Dials . . . check. Switches . . . check. Little colored lights . . . check.

— Calvin, of 'Calvin and Hobbes.

Post Edited (Oldbitcollector) : 11/10/2007 6:38:15 AM GMT