Audio with PWM: Difference between revisions
From ArmadeusWiki
(Creation) |
m (→Links) |
||
| Line 8: | Line 8: | ||
==Links== | ==Links== | ||
* Armadeus PWM driver | * [[PWM|Armadeus PWM driver]] | ||
* http://www.fpga4fun.com/PWM_DAC.html | * http://www.fpga4fun.com/PWM_DAC.html | ||
Revision as of 09:37, 8 May 2007
It is possible to generate sound with the APF9328 without any sound chip, just by using the PWM output and the i.MXL possibilities:
Quality
Achieved sound quality is low (8bits @ 8, 16 or 32KHz) but very sufficient to reproduce voice or small sounds. PWM activation/deactivation is generating "clac" each time you play a sound (for the moment) but using some electronic filters or playing "blank noise" could solve the problem.
