Re: Need good quality Audio output through LPC21xx controller
- From: Martin Griffith <mart_in_medina@xxxxxxxx>
- Date: Tue, 30 Sep 2008 10:23:13 +0200
On Mon, 29 Sep 2008 22:28:18 -0700 (PDT), in comp.arch.embedded
angaddhot@xxxxxxxxx wrote:
We are working on a project based on Vehicle tracking system.In one ofAre you trying to use PWM to play the audio, or a DAC?
our module we are using audio(voice) for Public transport system.As
if for now we are using filters and a power amplifer We are not able
to get good quality audio output with this setup.
Item used:
Lpc2132 with MMC card interface ,High pass filter+ Low pass filter+
Audio Amplifier+ Speaker
Requirement:
Good Voice quality annoucement system for Public transport System
How are you recording the audio, bit rate and depth?
martin
.
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