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Active noise cancellation on blackfin 533

Started by unbe...@yahoo.com December 29, 2009
Hi,
>
>I'm doing a project to do 'real time adaptive feedback active noise cancellation' on blackfin 533 EZKIT LITE.
>
I am using FXLMS algorithm.
May i know if the above mentioned application can be implemented using block processing? As most of the ANC is implemented using sample by sample processing.

Is there any sample ANC C code for BF533 EZKIT LITE available?

Thank you.
Look forward to your reply.

From,
K
I don't know any details, but try a web search using "active noise
cancellation bf533". I got a lot of interesting hits on the first page.

Patience, persistence, truth,
Dr. mike

On Tue, 29 Dec 2009, u...@yahoo.com wrote:

> Hi,
>>
>> I'm doing a project to do 'real time adaptive feedback active noise cancellation' on blackfin 533 EZKIT LITE.
>>
> I am using FXLMS algorithm.
> May i know if the above mentioned application can be implemented using block processing? As most of the ANC is implemented using sample by sample processing.
>
> Is there any sample ANC C code for BF533 EZKIT LITE available?
>
> Thank you.
> Look forward to your reply.
>
> From,
> K
>
Hi K
yes, why not? you can implement block processing. but sample by sample processing will not introduce any delay ( this might be applicaiton requirement). If your application can allow delay then collect 10 ro 20 msec data in a buffer then call ANC module.

hope the above helps

rgds
jk

----- Original Message -----
From: Mike Rosing
To: u...@yahoo.com
Cc: a...
Sent: Tuesday, December 29, 2009 8:09 PM
Subject: Re: [adsp] Active noise cancellation on blackfin 533

I don't know any details, but try a web search using "active noise
cancellation bf533". I got a lot of interesting hits on the first page.

Patience, persistence, truth,
Dr. mike

On Tue, 29 Dec 2009, u...@yahoo.com wrote:

>
>
> Hi,
>>
>> I'm doing a project to do 'real time adaptive feedback active noise cancellation' on blackfin 533 EZKIT LITE.
>>
> I am using FXLMS algorithm.
> May i know if the above mentioned application can be implemented using block processing? As most of the ANC is implemented using sample by sample processing.
>
> Is there any sample ANC C code for BF533 EZKIT LITE available?
>
> Thank you.
> Look forward to your reply.
>
> From,
> K
>