Hello VIKRHAM, Help required

I'm a third yr student

I'm working with the Kit dskC5416...

I need to get the audio sample from the port available n i need to process on those samples...

Can u help me in this...!! I saw a post from u about interfacing with the PC so, u must be knowing how to get the real valued samples from McBSP

I've only a months time to finish my project on audio processing, so now working on the processing part.. I need to get the samples n i'm stuck as to how to get those...

If any of u can be help me in this i'll be thankful to u...

Thank u,

Lakshmana karthik S.
(e...@gmail.com or s...@yahoo.co.in) Start a New Thread

Lakshmana Karthik S-

> I'm a third yr student
>
> I'm working with the Kit dskC5416...
>
> I need to get the audio sample from the port available n i need to process on those samples...
>
> Can u help me in this...!! I saw a post from u about interfacing with the PC so, u must be knowing how to get the real valued samples from McBSP
>
> I've only a months time to finish my project on audio processing, so now working on the processing part.. I need to get the samples n i'm stuck as to how to get those...

Audio I/O source code and project examples come on the CD with the DSK 5416, or you
can download them from Spectrum Digital website. Here is a page that shows how to
build audio I/O example programs:

http://www.engineering.sdsu.edu/~scott/lab3.htm

-Jeff Start a New Thread

Thanks a lot for ur reply Jeff...

We ve that Audio Project which ur referring to, but its difficult to understand as it has lots of header files in it.. ( It is a C file right...?!!!!)

Can u just brief us as to where the data gets stored, change its sampling rate n how to access it & process it while the C code is still running..

Also there r 3 McBSP port in C5416 n where in these 3, the real time datas get stored..?

Also is there any asm file tat is available for getting the real time inputs. We r doing a project on audio processing n so we r concentrating on that n now v r stuck up with this, getting samples, itself.

We tried to write a code by ourself by setting a sample rate using the timer given to the codec n get the samples wen an interrupt occurs(TINT).. But v want to know how to make the samples get loaded to a particular McBSP... also v could not move the contents of the accumulator to the output port via dxr as DXR is pointing to McBSP0 data receive register 2
(i.e., v tried moving from accumulator to dxr but it got loaded to DRR20)

V r trying to learn the interfacing of the codec with the dsp n it will help us if u brief us "Which register r pin is used to change the sampling rate of the codec...?"

Just brief us about getting realtime inputs in general...

It will be of great help to us if u can help us..

Lakshmana Karthik S.
(e...@gmail.com) Start a New Thread

Lakshmana-

You are trying to understand too many concepts at once. The best approach for you is
to get the DSK 5416 audio I/O example working, and then make small, step-by-step
changes.

In the most basic audio I/O example that comes with the DSK, data is just looped back
from input to output. Once that's working, the first thing you can try is to create
a buffer, maybe 1024 samples or so, to insert a delay in output data. Then you would
have have audio data "storage" as you mentioned. The second thing you can try is to
adjust sampling rates.

-Jeff
e...@gmail.com wrote:
>
> Thanks a lot for ur reply Jeff...
>
> We ve that Audio Project which ur referring to, but its difficult to understand as it has lots of header files in it.. ( It is a C file right...?!!!!)
>
> Can u just brief us as to where the data gets stored, change its sampling rate n how to access it & process it while the C code is still running..
>
> Also there r 3 McBSP port in C5416 n where in these 3, the real time datas get stored..?
>
> Also is there any asm file tat is available for getting the real time inputs. We r doing a project on audio processing n so we r concentrating on that n now v r stuck up with this, getting samples, itself.
>
> We tried to write a code by ourself by setting a sample rate using the timer given to the codec n get the samples wen an interrupt occurs(TINT).. But v want to know how to make the samples get loaded to a particular McBSP... also v could not move the contents of the accumulator to the output port via dxr as DXR is pointing to McBSP0 data receive register 2
> (i.e., v tried moving from accumulator to dxr but it got loaded to DRR20)
>
> V r trying to learn the interfacing of the codec with the dsp n it will help us if u brief us "Which register r pin is used to change the sampling rate of the codec...?"
>
> Just brief us about getting realtime inputs in general...
>
> It will be of great help to us if u can help us..
>
> Lakshmana Karthik S.
> (e...@gmail.com) Start a New Thread