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Dear C6x enthusiasts, We are interested in doing speech coding namely LPC 10 using the TMS320C6711 DSK. We are novices and have never used a DSP microprocessor before. We are using Code Composer Studio ver 2.1 . We have written all the necessary routines required for doing LPC in C. Now we want to know how to access the speech input coming through the DSK's audio input jack and hence don't know how to output it. Our routines written in C assume that blocks (say of size 160 samples each ) of data are available for processing. We want to know how we can access such speech blocks and how to output such blocks to the audio output. We will be very happy if somebody can explain how to do this or point us to any place where we can look. Thank you vk |
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speech coding on TMS320c6711 DSK - help !!!!!!!!!!!!!!
Started by ●April 18, 2003
Reply by ●April 18, 20032003-04-18
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Hi Vignesh , It is very easy. The best option is to use EDMA transfers. Maybe in the future you require REAL TIME PROCESSING , EDMA transfer is the unique option.So learn it. There is a very good example about How to Use EDMA transfers: It is an old example that comes with CCS 1.0 ( I think) , I looked in the web and you can find it : http://www.rose-hulman.edu/Class/ee/yoder/ece581/iw6000/labs/bsl/dsk_example s/codec/edma/Dsp/ the code is codec_edma.c If it is your first using EDMA transfers , do not worry . It is easy , you have to learn the PDF files : TMS320C6000 Peripherals Reference Guide Literature Number: SPRU190D See EDMA Controller. Cheers, Claudio ********************************************* Signal Processing Group PONTIFICIA UNIVERSIDAD CATOLICA DEL PERU www.pucp.edu.pe ********************************************* ----- Original Message ----- From: Vignesh Krishnan <> To: <> Sent: Thursday, April 17, 2003 6:11 PM Subject: [c6x] speech coding on TMS320c6711 DSK - help !!!!!!!!!!!!!! > Dear C6x enthusiasts, > We are interested in doing speech > coding namely LPC 10 using the TMS320C6711 DSK. We are > novices and have never used a DSP microprocessor > before. We are using Code Composer Studio ver 2.1 . > We have written all the necessary routines required > for doing LPC in C. Now we want to know how to access > the speech input coming through the DSK's audio input > jack and hence don't know how to output it. Our > routines written in C assume that blocks (say of size > 160 samples each ) of data are available for > processing. We want to know how we can access such > speech blocks and how to output such blocks to the > audio output. We will be very happy if somebody can > explain how to do this or point us to any place where > we can look. > > Thank you > vk > > _____________________________________ > Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. > > _____________________________________ > About this discussion group: > > To Join: Send an email to > > To Post: Send an email to > > To Leave: Send an email to > > Archives: http://www.yahoogroups.com/group/c6x > > Other Groups: http://www.dsprelated.com > ">http://docs.yahoo.com/info/terms/ > |
