Adaptive Filter | ADPCM | ADSP | ADSP-2181 | Aliasing | AMR | Anti-Aliasing | ARMA | Autocorrelation | AutoCovariance | Beamforming | Bessel | Blackfin | Butterworth | C6713 | CCS | Chebyshev | CIC Filter | Circular Convolution | Code Composer Studio | Comb Filter | Compression | Convolution | Cross Correlation | DCT | Decimation | Deconvolution | Demodulation | DM642 | DSP Boards | DSP/BIOS | DTMF | Echo Cancellation | Equalization | Equalizer | ETSI | EZLITE (Ez-kit Lite) | FFT | FFTW | FIR Filter | Fixed Point | FSK | G.711 | G.723 | G.729 | Gaussian Noise | Goertzel | GPIO | Hilbert Transform | IFFT | IIR Filter | Interpolation | Invariance | JTAG | Kalman | Laplace Transform | Levinson | LPC | McBSP | MIPS | Modulation | MPEG | Multirate | Notch Filter | Nyquist | OFDM | Oversampling | Pink Noise | Pitch | PLL | Polyphase | QAM | QDMA | Quantization | Quantizer | Radar | Random Noise | Reed Solomon | Remez | Resampling | RTDX | Sampling | Sharc | TI C6711 | Undersampling | Viterbi | Wavelets | White Noise | Wiener Filter | Windowing | XDS510PP | Z Transform

Doubt reg MIPS Vs MHz

Hi If a processor operating at 200MHz. Whats the Max. MIPS the processor supports. Is there a way to calculate MIPS from MHz ?? How do u relate MIPS and MHz ?? Regards Shangai Sun ...

Issue with MIPS measurments in TMS320c6416

Hi all I have an optimized code running on DSK6416, as I count the number of instruction in my code , it is 74 and because the sampling rate is 8000Hz so it comes to .592 MIPS) I used the profiler and also TIMERs of DSP to measure the MIPS and it gives me almost a double(1.1 MIPS) number. ...

Regarding MIPS caluculation on TMS320C5510

Hi all, I am doing my project on TMS320C5510.Upto now i am using profiling method to caluculate MIPS but sometimes it is not giving the correct reults and the results are differring.Is there any other alternative to caluculate MIPS. pls help me on this.. Thanks & Best regards, Viswan...

calculating MIPS in a application

hi all, i want to know as to how a product engg calcuates MIPS in a application.well we have a algorithm(image compression) which we plan to implement it in a dsp processor.in the process of choosing the processor,the main criteria which is been asked is ...whats the MIPS of ur applicati...

AMR- WB & AMR- NB

Hi to all, I am doing projects of AMR- WB(ITU G.722.2) & AMR- NB implementation on ARM9E. I have the following doubts, please clarify. 1) What are the standards for AMR- NB? Is 3gpp AMR-NB same as ITU G.723.1 ? 2) AMR- WB and GSM-AMR are same or not ? 2) What is the difference b...

question about unit to calculate program speed

Hello all, any one can share me what is related between MIPS and MHz if I have a number in MHz how can I change it to MIPS Thanks. This message was sent using the Comp.DSP web interface on www.DSPRelated.com ...

The ADSP-2181 EZ-Kit Lite

Our school is selling these EZ-Kit Lites out for almost nothing. I'm wondering if it's possible to put two or more together so they become a parallel distributed computing system, as in, since they've 20 MIPS, can they become 20 MIPS x [number of 2181 together]? :) -- Mvh / Best regards, Jac...

How to choose the right MIPS for my filters design

HEllo, I have an acquisition system of 30 measurements. The sampling rate for one acquisition is 1000 Hz. Each acquisition must be filtered with a FIR with 16 Taps and 16 sample of the signal acquistion will be used. I will use a TSM320C2xxx with a frequency of 150 Mhz. How many MIPs do ...

MIPS required for G.165,G.729AB

Hello, I wanted to know the MIPS required for G.165,G729AB,T.38 and V.150. I am Choosing a DSP (Analog ot TI DSP) for a application which has the above tasks. Thanks and regards Praveen ...

MIPS analysis of an application on DSP processor.

Hi all, can anyone give me a pointer for the following: How to assess MIPS requirement for video encoder on a particular DSP processor. This is to see the feasibility of implementation. Let's say processor freq. is f, frame rate of encoder is 25 fps. size is 720x576. Thanks n regards, -...

MIDI Questions

1.)Under Windows XP: I would like to force Windows Media Player to use a different wavetable other than C:\WINDOWS\system32\drivers\gm.dls. When I try renaming my wavetable as gm.dls the system automatically changes it back. I guess registry needs to be changed? How can I safely make this ...

Re: Which DSP DSK for 700 MFLOPS Audio

Hi all, Could you give us a hint what is your algorithm is or compare it with something like MP3 codec or post-processing (in a wide sense: SBR, equalizer...). Ordinarily audio decoder consumes about 7-20 MIPS/per_channel@48kHz on DSP, encoder needs 2-4 times more computational power. All th...

Software Defined Radio DSP choice / sizing

I'm working on a SDR design using the AD9874 to digitize the IF producing 280 Ksamples/sec and am trying to size the DSP. I'm leaning towards the ADSP-BF532 which is a fixed point DSP rated at 400 MIPS / 800 MMACS and is available in a LQFP package. I'd like to be able to handle everything f...

TI F2812 DSP actual MIPS < 150 ?

running a while() loop on the SpectrumDigital F2812 EZDSP evaluation board, using a 30 Mhz clock crystal, toggling the external XF bit after 10,000 while() loops, and monitoring timing on a scope, it appears that the 6 assembler instructions that comprise the while() loop are executed at a rate...

C64 TI, Difference between running a code from external or L2 memory

Hi guys, I have a DSP code running on C64x and it is about 30 MIPS (the code resides in L2), if I use L2 for some other purposes and the DSP code resides in external memory (basically the Program should be transferred from External memory to cache whenever is needed), what is the effect of th...

AMR WB+ (fixed point) Frame duration

Hi all, I am trying to port AMR WB+ (fixed point Base line) to some platform. I want to calculte MIPS consumption of the codec. I know, if it takes 'X' million instructions per frame on the processor and 'T' is the frame duration, then MIPS = X/T I have the value of X with me. Can an...

Re: OFDM, Homeplug - reduce IFFT butterflys

> Zeph80 wrote: > > > I have a question concering Homeplug and OFDM.What if had to be able to > > talk to Homeplug chips, BUT I needed very very low data rates like nothing > > more than 800 bps. So since I have such low data rate needs, and would need > > to work within the Homeplug stan...

searching for a low power DSP, about 80 MIPS with flash and A/D's

Hello everyone, So I'm lookig for a DSP with the following characteristics : - about 80-100 MIPS - 16 bits fixed point operations - low-power for embedded application - on-chip flash (or EEPROM) - at least 8 12-bits A/D's As you see, my application doesn't require too much calculation pow...

Re: LPC cowfficient freeze

> > > pal.debabrata123 wrote: > > > In recent past there was a suggestion thrown to me to freeze the > > LPC > > coefficient to save computation cycles and the "rational" is speech > > is stationary in nature! > > > > The application is a vocoder. > >...

about HR codec in GSM

how many mips does it work in shark ...

about HR codec in GSM

how many mips does it work in shark ...

Re: AMR codec implementations

jasonshi wrote: > In order to keep bit-accuracy, I offen shift 16 bit operand to high > halfword of registers before add/sub/mul, etc and then shift the result > back. > At the same time, i try my best to combine the following operations to > 16-bit operations, eg. saturation. > > Th...

Re: Small footprint DSP

Do u have a TigerShark board? I need MIPS .... ...

Abaut HR codec in GSM

how many mips does it work in shark ...

Happy 2008!

To All comp.dsp'ers the World Over: Happy New Year!!! - May all of your filter designs converge - May your available MIPS always exceed your required MIPS - May your IIRs never limit-cycle - May your documentation always provide just the right answers - May all your hardware...

recherche DSP

Bonjour à tous, Voilà, je recherche un DSP qui aurait les caractéristiques suivantes : 60 MIPS min, 16 bits virgule fixe avec si possible flash ou EEPROM interne. Comme vous le voyez, ça n'est pas hors du commun, 60 MIPS c'est même peu. Par contre, il serait utile d'avoir des entrées sorties...

MIPS and cycle

Hi all, Does anybody know the exact difference between the above two? It seems to me they're used interchangeably in many ocassions. Thanks a lot! George ...

Need DSP recommendation

Hi, I have been developing an application using a Microchip 18F452 with 40 Mhz clock. Unfortunately, it seems like the device is too slow for the application and I need something faster. Hence I am asking for some recommendations. My application is the following. The processor is connected ...

Re: compression speed

A GSM cellphone Enhanced Full-Rate (EFR) vocoder uses around 20 MIPS --Anthony ...

Re: FIR notch filters using the Windowing method

I've actually been looking into this as well. IIR notch filters (parametric) are easy to generate, just need a pole just below a zero on the unit circle. But I also need to use a FIR filter for linear phase reasons. Standard FIR bandstop designs need a whole bunch of taps to get a tight notch...

Re: clock system design on ADSP2191M

In article , whygee@f-cpu.org says... > Hello, > > i want to use a single clock to control the ADSP2191M > and an audio codec with a 24.576MHz quartz. > Fortunately, the 2191 has a PLL that can do 6.5x so > it can reach 159.744MHz, which is pretty near > the maximum 160MHz core freq...

Re: Microcontroller or DSP with 250kHz sampling rate

I suppose you need the ADCs to be onchip. The following are my suggestions in the microcontroller world (all from Analog Devices): - ADuC841/2/3: 8 channel, 400ksps ADC, 12 bits, 62kB Flash, 2kB SRAM, 16 - 20 MIPS. 8051 Architecture. - ADuC702x: 5 - 16 channel, 1 MPSPS ADC, 12 bits, 62kB Fl...

changer voice

How to change voice (disguise) without formant, pitch analysis,etc, using only simple common DSP method as Hilbert transform and forth. Unfortunetly I have some mips only. Maybe this problem hasn't decision in these circumstances ? ...

Re: Acoustic Echo Cancellation source

I did some practical work in the field of acoustic EC and howling suppression. It is rather complicated matter with a lot of black magic involved. The EC is usually done by some variant of LMS algorithm. The optimal FIR length should be about 50...100 msec generally. The LMS is quite CPU in...

DSP vs Firmware

Hello, What are the advantages of using a DSP chip when someone can write C code to do DSP and then have it compiled onto a FPGA or some other fast MIPS chips? Isn't FPGA faster anyway? ...

Short block FEC

Hi group, I'm wondering what the most practical and modern choice is for coding 80 bits of data for a power-limited AWGN channel using BPSK, with the constraint that the encoder is a tiny device with just a few kbytes and a few MIPS. The decoder can be very complex. Suggestions appreciated....

Re: Which dsp for LMS?

"Country Loon" wrote in news:1096954317.444213@ftpsrv1: > If I want to do real-time LMS on an audio application,what DSP is best > if I need say 400 weights? > > Thanks > > Tom > > > An LMS implementation on a DSP will take 3 or 4 instructions per tap. You can easi...

AMR - WB

Hi Dmitry, Thanks for your information. Can you tell me, What is the difference between ARM and TI- processors in the MIPS point of view ? Approximately how many days one guy will take to complete AMR - WB & AMR projects on ARM 9E,If he is having the fixed C-code ? Best Rega...

Computation Cost for 2 biquad IIR

Hello, I am trying to choose a DSP for different filtering operations. I ll use 2 biquad IIR ( 2 IIRs of 2nd order). I will have 3 input signals that i will sampled at 1khz, 2khz and 10 khz. How many MIPs odes it cost? Thank you ...

Hardware Required

Hi, I was wondering if anyone could tell me what type of DSP i would need for a basic voice recognition system. The system would you a matched filter of 1000 samples and can have a sampling frequency of anywhere from 2200 toi 22050 Hz. Also the samples have a resolution of 16 bits. I'm confus...