DSP

GSM AMR on blackfin.
I am working on a GSM AMR codec. I have optimized the codec for real time operation on a Blackfin DSP on the 533 evaluation board. I capture the input and play it out. I have put the system in two configurations: (a) No codec, plain loopback of the captured sound on the output speaker. I get good sound. (b) When... 1 Aug 2006 11:59

is FFT always approximate?
If I have a time signal which is periodic, and I use FFT to obtain the spectrum, which should be discrete, will this FFT procedure be approximate? I am wondering about this because I've heard that FFT is only an approximation to the true Fourier transform... ... 8 Aug 2006 10:59

XDS510 USB
When I connect F2812 XDS510 Emulator to the target board the error " Error connecting to the target: Error 0x80000200/-1037 Fatal Error during: OCS, PTI_ERR_EMU_CLOSE Error Occured at 0x00000000 Sequence ID: 0 Error Code: -1037 Error Class: 0x80000200 I/O Port = 240 Board Name: F2812 XDS510 Emulator ... 27 Jul 2006 08:28

Digital bandwidth
Hi I am currently working on a project which involves determining the relationship between the the "bandwidth"(as my advisor puts it) and power consumption of an I/Q transmitter. The I/Q transmitter works as follows: In-Phase: Even bits of PN sequence ---> DAC ---> LPF --> multiply by cosine --> transmit ... 30 Jul 2006 16:22

Puncturing
Hi, I've got a simple MATLAB model of a wireless standard that I've been trying to get to work. So far, I've not had much success. The problem I have is with puncturing. Basically, I generate a series of bits for my data stream and then I remove some bits according to some puncturing pattern. I then reconstitu... 28 Jul 2006 12:07

Regarding Bit Loading.
Hey Guys , As we know that for xDSL technologies .There are number of caerriers for upstream and downstream. Each carrier is loaded with bit.That's what Bit Loading is all about. My question..Why different carriers are loaded with different Bit?? Is there any criteria that defines Bit loading scheme for differ... 20 Jul 2006 11:11

Petrol consumption
"Mad Prof" <mad(a)uni.com> wrote in message news:44bd989a$0$19689$88260bb3(a)free.teranews.com... Anybody know if more petrol is consumed when the car headlights are on? If so how significant is it. I assume there must be more fuel needed since the batter is only used on start-up - the generator being the m... 30 Jul 2006 18:29

DCT & DWT
This is a MATLAB code for DCT and DWT Compression. I tried this code with 512X512 TIF image. The DCT part worked fine, but I faced some problems with DWT compression. The output image was just blank. Any help regarding this will be highly appreciated!! inp_image=imread('c:\zenacolor.tif'); inp_imaged=double(inp... 17 Jul 2006 15:44

calculate
Hi All, y[n]-5/6.y[n-1]+1/6y[n-2]=x[n] to howcan i calculate impuls? h[n] Thank you for you help ... 17 Jul 2006 03:42

Exciting Project!
Crystal Instruments is an engineering firm, founded in 1996 and focused in the area of embedded systems, digital signal processing (DSP) and Windows programming. With over eight years' experience creating embedded and DSP systems for product evaluation, algorithm implementation and fine tuning for mass production, ... 14 Jul 2006 19:27