Re: ColdFire QADC for voice audio?

On Mon, 29 Oct 2007 10:52:13 -0700, in comp.arch.embedded
ghigbie@xxxxxxxxxx wrote:

We are considering using the 10 bit QADC on the ColdFire MCF5282 for
sampling up to 5 channels of voice audio with 8Khz to 16Khz sampling.
I am curious as to whether anyone has experience with this ADC for
voice audio applications and in particular whether they experienced
excessive digital noise, distortion, or other unforseen problems. The
alternative is to use external Codecs to digitize the audio be we are
willing to trade a certain amount of audio quality for lower power and
chip count.

Thanks,
Gordon Higbie
Software Engineer
Universal Avionics Systems Corporation

Download Texas Inst's FilterPro for an easy way to fiddle with LPF's

HTH



Martin
.

Relevant Pages

  • Re: ColdFire QADC for voice audio?
    ... sampling up to 5 channels of voice audio with 8Khz to 16Khz sampling. ... I am not particularly familiar with the ADC of the Coldfire, however I have used the built-in 10bit ADCs of the other MCUs for the audio sampling. ...
    (comp.arch.embedded)
  • ColdFire QADC for voice audio?
    ... We are considering using the 10 bit QADC on the ColdFire MCF5282 for ... sampling up to 5 channels of voice audio with 8Khz to 16Khz sampling. ...
    (comp.arch.embedded)
  • Re: CPLD Algorithm
    ... An 24 bit ADC is sampling the data from 16 different channels. ... CPLD is controlling the multiplexer addresses of the ADC at the ...
    (comp.lang.vhdl)
  • Re: Time match
    ... if you are expecting to sample the three channels at teh same time. ... sampling, you'll not be able to sample different channels at exactly ... that are to be sampled are multiplexed through this one ADC chip. ... a 2D array of your data with each channel in a row of the array. ...
    (comp.lang.labview)
  • CPLD Algorithm
    ... An 24 bit ADC is sampling the data from 16 different channels. ... switching frequency of 192 KHz. ...
    (comp.lang.vhdl)