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Hello, I'm looking to get 4 AES or SPDIF audio signals into my c6711 DSK. Have any of you done this before? Does anyone know of a daughtercard for the DSK that might do this or something similar? Are there any reference designs for connecting a multi-channel AES or SPDIF transceiver, or multiple single-channel transmitters / receivers to a single MCBSP? Thanks for your help. Brian |
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SPDIF Daughtercard for c6711 DSK
Started by ●May 23, 2003
Reply by ●May 23, 20032003-05-23
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Hi Brian, I was thinking of doing something similar with the 6201 EVM sometime ago. I know of a few boards that have S/PDIF inputs. Not all of them are exactly daughtercards so some of them would need some extra interfacing. They each have a single S/PDIF input though. I haven't come acroos any T.I. boards with an AES/EBU input. The boards are: 1) DEM-DAI 1716 2) DEM-DAI 1770 EVM 3) DEM-PCM2903 EVM 4) DEM-DIR 1703 Since you want to have 4 S/PDIF inputs, you might want to consider building your own board using DIR 1703 IC's. Another option is to get the T.I. Home Theater Developement Kit. It has a TMS320DA610 (which is based on the 67x architecture). This kit has 4 S/PDIF inputs but I'm pretty sure that its really expensive. Now, if you want to develop commercial products that are going to run on DSPs, you would need to get some kind of board which can recieve S/PDIF signals like you mentioned. However, if you are want to do research or try out algorithms, I strongly suggest that you use a PC with a good soundcard rather than a DSP. We decided to use a PC in our lab. It has many advantages. Firstly, it can be much faster than a single DSP. I tried the same C code both on Code Composer Studio (for the 6201 EVM) and on VC++ (the optimizers on the highest level on both). The program running on VC++ was about 4 times faster ( I was using a 1.5 GHz P4). Secondly, there are so many amzing soundcards available. Getting multiple digital inputs is not a problem at all. We ordered an RME HDSP 9652. This card has 26 channel digital input and 26 channel digital output (however 2 channels are S/PDIF and 24 channels are in the ADAT format). As far as writing programs, there are lots of API's such as Portaudio to get you your samples from your soundcard into your program. So at the end of the day, you can really concentrate on your algorithms rather than other issues. Best of Luck, Gautham >From: "bnsarvis" <> >To: >Subject: [c6x] SPDIF Daughtercard for c6711 DSK >Date: Thu, 22 May 2003 23:56:47 -0000 > >Hello, > >I'm looking to get 4 AES or SPDIF audio signals into my c6711 DSK. >Have any of you done this before? Does anyone know of a daughtercard >for the DSK that might do this or something similar? Are there any >reference designs for connecting a multi-channel AES or SPDIF >transceiver, or multiple single-channel transmitters / receivers to a >single MCBSP? > >Thanks for your help. > >Brian > >_____________________________________ >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/ _________________________________________________________________ Mobile, masti, magic! Cool ringtones & logos. http://www.msn.co.in/mobile/ Get noticed |
Reply by ●May 28, 20032003-05-28
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Hi Brian, RME is the name of the company that makes the HDSP 9652. Their website is: http://www.rme-audio.de/english/index.htm M-audio also makes some cool sound cards. http://www.midiman.net/index.php Audiomidi is a good online store to order soundcards from. This is where we ordered ours from. They've got a whole bunch of high end soundcards listed there. http://www.audiomidi.com/ Click on Hardware and then click on Audio Interfaces. -Gautham >From: "Brian Sarvis" <> >To: >Subject: Re: [c6x] SPDIF Daughtercard for c6711 DSK >Date: Tue, 27 May 2003 09:14:09 -0700 > >Gautham, > >Thanks for the advice. I'll give the sound cards a shot. Where would be a >good place to start looking for the cards? Who makes the "RME HDSP 9652?" > >Thanks. > >Brian >>From: "Gautham Mysore" <> >>To: >>Subject: Re: [c6x] SPDIF Daughtercard for c6711 DSK >>Date: Fri, 23 May 2003 23:06:17 +0530 >> >>Hi Brian, >> >>I was thinking of doing something similar with the 6201 EVM sometime ago. >>I >>know of a few boards that have S/PDIF inputs. Not all of them are exactly >>daughtercards so some of them would need some extra interfacing. They each >>have a single S/PDIF input though. I haven't come acroos any T.I. boards >>with an AES/EBU input. The boards are: >> >>1) DEM-DAI 1716 >> >>2) DEM-DAI 1770 EVM >> >>3) DEM-PCM2903 EVM >> >>4) DEM-DIR 1703 >> >>Since you want to have 4 S/PDIF inputs, you might want to consider >>building >>your own board using DIR 1703 IC's. >>Another option is to get the T.I. Home Theater Developement Kit. It has a >>TMS320DA610 (which is based on the 67x architecture). This kit has 4 >>S/PDIF >>inputs but I'm pretty sure that its really expensive. >> >>Now, if you want to develop commercial products that are going to run on >>DSPs, you would need to get some kind of board which can recieve S/PDIF >>signals like you mentioned. However, if you are want to do research or try >>out algorithms, I strongly suggest that you use a PC with a good soundcard >>rather than a DSP. We decided to use a PC in our lab. It has many >>advantages. Firstly, it can be much faster than a single DSP. I tried the >>same C code both on Code Composer Studio (for the 6201 EVM) and on VC++ >>(the >>optimizers on the highest level on both). The program running on VC++ was >>about 4 times faster ( I was using a 1.5 GHz P4). Secondly, there are so >>many amzing soundcards available. Getting multiple digital inputs is not a >>problem at all. We ordered an RME HDSP 9652. This card has 26 channel >>digital input and 26 channel digital output (however 2 channels are S/PDIF >>and 24 channels are in the ADAT format). As far as writing programs, there >>are lots of API's such as Portaudio to get you your samples from your >>soundcard into your program. So at the end of the day, you can really >>concentrate on your algorithms rather than other issues. >> >>Best of Luck, >>Gautham >> >> >> >From: "bnsarvis" <> >> >To: >> >Subject: [c6x] SPDIF Daughtercard for c6711 DSK >> >Date: Thu, 22 May 2003 23:56:47 -0000 >> > >> >Hello, >> > >> >I'm looking to get 4 AES or SPDIF audio signals into my c6711 DSK. >> >Have any of you done this before? Does anyone know of a daughtercard >> >for the DSK that might do this or something similar? Are there any >> >reference designs for connecting a multi-channel AES or SPDIF >> >transceiver, or multiple single-channel transmitters / receivers to a >> >single MCBSP? >> > >> >Thanks for your help. >> > >> >Brian >> > >> > >> > >> >_____________________________________ >> >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/ >> > >> > >> >>_________________________________________________________________ >>Mobile, masti, magic! Cool ringtones & logos. http://www.msn.co.in/mobile/ >>Get noticed >> >> >> >>_____________________________________ >>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/ >> >> > _________________________________________________________________ HCL Beanstalk PCs. You could win one. http://server1.msn.co.in/sp03/hclbeanstalktour/index.asp Interested? |
