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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)

(You need to be a member of c54x -- send a blank email to c54x-subscribe@yahoogroups.com )

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

(You need to be a member of c54x -- send a blank email to c54x-subscribe@yahoogroups.com )

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)

(You need to be a member of c54x -- send a blank email to c54x-subscribe@yahoogroups.com )

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)

(You need to be a member of c54x -- send a blank email to c54x-subscribe@yahoogroups.com )