DSP

dsPic adc for audio signals
Hi. With a dsPic (ie dsPic30F4013) I need to process two voice band channels (for telephony, fs=8kHz). Can there be problems to use the embedded adc, oversampling 8 times and then filtering? Do you think this may waste more than one half of dsp bandwidth? Why is not usual to use the embedded adc for audio signals... 17 Apr 2006 13:30

Speech Recognition
Hi i am new to this group i am working on speech recognition for my last year project i have designed a gui in matlab for recognizing vowels and displaying them and used neural networks the problem is i have used filterbank coefficients(mel scale), lpc, and mfcc(probably as there are still some problems) to trai... 13 Apr 2006 09:57

OFDM Modulator
hi everyone Im devloping an OFDM modulator using DSP techniques, with the following specifications: Bit rate = 16Kbs/s 16 sub-carriers QPSK 8 Bit Resultion DAC can anyone help regarding how to start the matlab program for this project.. thnx best regards Omar ... 10 Apr 2006 22:34

I want to learn DSP, but I don't know which DSP should I
Dear all, I want to learn DSP, but I don't know which DSP i should choose. TI TMS67xx or ADI blackfin or OMAP or others? My target is to implement the h.264 standard in it. Which DSP could satisfy this target? Could anyone give me suggestion? Thanks a lot. BR, Eddie Chou ... 11 Apr 2006 10:00

_Way_ OT: Farenheit 911
I wanted to test the pulse of folks in this group (especially you, rb-j) about this movie. I just saw it (or most of it) for the first time on satellite a few days ago. I suppose the burning question I have is, is it true? The next-most (or maybe even more) important question is: Is there a strong bias or othe... 18 Apr 2006 13:01

Testing ADC
Hi. How do i test ADC of TMS320F2812? I was thinking inject a triangular wave in one of the analogic imput and see the result in the exit digital or in a buffer. but the problem is: how i do this, how do i inject a wave in the analogics imputs by software??? somebody can supply a code that reads an analogica... 30 Mar 2006 13:07

AMR Optimization
Hello all, I would like some (no, make that a lot of help) concerning AMR optimization. basically my situation is this. The carrier is GSM 850 and recently deployed AMR across a section of the network which was experiencing high blockage, high handover failure, high drop calls etc. I recently joined the organiza... 29 Mar 2006 16:05

Frequency modulation
Hi all, I need to do FM on a signal and the FM profile should be triangular. ie. the frequency vs. time plot of the modulated signal should have a triangular profile. How can I do this? All help will be greatly appreciated. Thnx in advance. Regards Apurva ... 28 Mar 2006 16:48

MATLAB CODE FOR IMPEDENCE MATCHING NETWORK
HELLO, EVERY ONE I WANT A MATLAB CODE , FOR "DESIGNING A IMPEDENCE MATCHING NETWORK FOR HIGH FREQUENCY 2MHZ TO 29.9 MHZ" & its allied code like measuring L C R values & for smith chart help need badly urgent, thanks in advance with regards MAHESH ... 24 Mar 2006 08:25

EDGE coding schemes ?
For EDGE coding schemes ,if the transmitted block fails then while retransmitting , with respect to which parameter it is changing the coding schemes ? for example if the transmitted block contains MCS-9 and if it is lost , then while retransmitting it can choose any of the MCS . Depending on which parameter or conditi... 23 Mar 2006 10:37