Re: Need good quality Audio output through LPC21xx controller
- From: "Boudewijn Dijkstra" <boudewijn@xxxxxxxxx>
- Date: Tue, 30 Sep 2008 14:06:22 +0200
Op Tue, 30 Sep 2008 07:28:18 +0200 schreef <angaddhot@xxxxxxxxx>:
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.
How? What's wrong with the quality? (Frequency response/THD distortion/Noise/Effective rms power)
Item used:
Lpc2132 with MMC card interface ,High pass filter+ Low pass filter+
Why do you need these filters?
Audio Amplifier+ Speaker
Are your amplifier and speaker suitable for "good voice quality" ?
Requirement:
Good Voice quality annoucement system for Public transport System
Is your clock crystal stable enough for "good voice quality" ?
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