Hello all,
Is the sampling rate of stereo codec AIC23 in the starter kit TMS320C6713DSK
be changed? Its lowest sampling rate is 8kHz but I need 500Hz in my application.
How can I changed it? Please advice. Thanks.
Rgds, SIA
sampling rate of AIC23 for TMS320C6713DSK
Started by ●July 3, 2006
Reply by ●July 4, 20062006-07-04
It is not a problem. First, sample your signal at 8 kHz later take every 16th
sample and ignore others.
Sia Lih Huoy wrote: Hello all,
Is the sampling rate of stereo codec AIC23 in the starter kit TMS320C6713DSK be changed? Its lowest sampling rate is 8kHz but I need 500Hz in my application. How can I changed it? Please advice. Thanks.
Rgds, SIA
Sia Lih Huoy wrote: Hello all,
Is the sampling rate of stereo codec AIC23 in the starter kit TMS320C6713DSK be changed? Its lowest sampling rate is 8kHz but I need 500Hz in my application. How can I changed it? Please advice. Thanks.
Rgds, SIA
Reply by ●July 10, 20062006-07-10
> First, sample your signal at 8 kHz later take
> every 16th sample and ignore others.
Before decimating the signal by 16, you should first low pass filter
the input signal to remove any spectral contents beyond 500 Hz,
otherwise your down-sampled signal will have aliasing.
Niro.
--- mursel onder wrote:
> It is not a problem. First, sample your signal at 8 kHz later take
> every 16th sample and ignore others.
>
> Sia Lih Huoy wrote: Hello all,
> Is the sampling rate of stereo codec AIC23 in the starter kit
> TMS320C6713DSK be changed? Its lowest sampling rate is 8kHz but I
> need 500Hz in my application. How can I changed it? Please advice.
> Thanks.
>
> Rgds, SIA
>
> every 16th sample and ignore others.
Before decimating the signal by 16, you should first low pass filter
the input signal to remove any spectral contents beyond 500 Hz,
otherwise your down-sampled signal will have aliasing.
Niro.
--- mursel onder wrote:
> It is not a problem. First, sample your signal at 8 kHz later take
> every 16th sample and ignore others.
>
> Sia Lih Huoy wrote: Hello all,
> Is the sampling rate of stereo codec AIC23 in the starter kit
> TMS320C6713DSK be changed? Its lowest sampling rate is 8kHz but I
> need 500Hz in my application. How can I changed it? Please advice.
> Thanks.
>
> Rgds, SIA
>
