Sound playback with an atmel mega128

This is an atmel mega128 running at 16MHz playing two drum samples (one at a time) at 16M / 512 =

31,250 KHz. The wav files are 16 bit stereo and stored in the 128's program memory. Each byte is

passed through an 8 bit parallel in-serial out shift register into an CS4334 DAC.

Seriously, if anyone wants details on how I got to this point (hardware/software) I will be more than happy to help out =^)

Category:

Howto & Style

Tags:

• atmel
• mega128
• project
• sound
• sample
• playback

[ninjarobotdude]

That DAC has line level outputs, capable of driving some headphones. The speakers in the video are self amplified pc speakers... so usually you would need an amp.

[Darkangle2020]

this is a very good project I'm very interested about how you did that project specially how can you save the WAV files on the micro and how you output this files into a digital signal to be send to DAC

could you help me on that thanks

[SilverStef00]

good work, please give me a site to look the project. thanks

[LOLDISNEYLAND]

I'm dancing to this vid.. dancing hardcore!! Woop woop!

[PeterIsza]

Nice one. I used an SD card for a similar project, and managed to play 16bit music @ 31250kHz without a DAC only with the internal 8MHz RC oscillator (i used 2 calibrated PWM outputs).

[Zaphodikus]

Great project. OK, schematics anyone? Have you got a 'forum' posting with more detail?

[killerCharade]

LOL get a life.

[sureshotstudio]

ditto !!! very cool. But how long can those samples be? It might be possible to lengthen the samples if you added a memmory module, Right?

[rivf4d3r]

Hey ninjarobotdude,

i would be very pleades if you would send me the source code of this "sampler", i'm searching for a projekt jike this and also i'll hop, that i can find some programming tricks for mysself in your programm.

would this be possible?

greetings from simon/germany

[Coiltec]

Why don't you simply use a R-2R network as a DAC? It's faster and cheaper.