Re: Need good quality Audio output through LPC21xx controller
- From: angaddhot@xxxxxxxxx
- Date: Tue, 30 Sep 2008 02:29:10 -0700 (PDT)
On Sep 30, 1:23 pm, Martin Griffith <mart_in_med...@xxxxxxxx> wrote:
On Mon, 29 Sep 2008 22:28:18 -0700 (PDT), in comp.arch.embedded
angadd...@xxxxxxxxx wrote:
We are working on a project based on Vehicle tracking system.In one of
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
Are you trying to use PWM to play the audio, or a DAC?
How are you recording the audio, bit rate and depth?
mar
I am using PWM ,.raw format little indian 16 bit 8khz<
.
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- Need good quality Audio output through LPC21xx controller
- From: angaddhot
- Re: Need good quality Audio output through LPC21xx controller
- From: Martin Griffith
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