hello, i am new to this so take it easy on the answers please....i have to develop a program that will multiplex two audio channels at the input of the DSP in order to produce PCM type data....i will use the c6711 dsk....any help at all? thanks.....
develop program for a dsp system
Started by ●February 20, 2005
Reply by ●February 20, 20052005-02-20
acid2000gr wrote:> hello, i am new to this so take it easy on the answers please....i > have to develop a program that will multiplex two audio channels at > the input of the DSP in order to produce PCM type data....i will use > the c6711 dsk....any help at all? thanks.....You've told us about the outgoing signal: PCM. How yo the signals you want to process arrive? Please specify "multiplex" in your context. (Interleave? Add? ??) Jerry -- Engineering is the art of making what you want from things you can get. �����������������������������������������������������������������������
Reply by ●February 20, 20052005-02-20
Jerry Avins wrote:> acid2000gr wrote: > > hello, i am new to this so take it easy on the answers please....i > > have to develop a program that will multiplex two audio channels at > > the input of the DSP in order to produce PCM type data....i willuse> > the c6711 dsk....any help at all? thanks..... > > You've told us about the outgoing signal: PCM. How yo the signals you> want to process arrive? > > Please specify "multiplex" in your context. (Interleave? Add? ??) > > Jerry > -- > Engineering is the art of making what you want from things you canget.>=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF= =AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF= =AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF I'll read between the lines a bit and guess that you want to combine two audio streams together into one. The simplest way to do this is to add them together. The addition should be performed in the linear amplitude domain. If you have two 8-bit mu-law or A-law PCM streams coming in, they must each be expanded to linear, summed, and the sum compressed back to PCM to form the outgoing signal.=20 John
