I am trying to pick out a 75hz drive signal from a large open coil which picks up a good magnitude of 60hz. I find that the derived amplitude...

I am trying to pick out a 75hz drive signal from a large open coil which picks up a good magnitude of 60hz. I find that the derived amplitude number of the 75hz bin bounces quite a bit up to about 1-2%. My current scenario is this: I am sampling at 4080hz (I started with 4096 and found that the amplitude peak/centering was at 4080hz) taking 2048 samples. With the samples, I am using Welch'...

Hi.... I'm new to DSP field.I'm asked to develop a speaker management system(to control delay,crossover,level etc) Since i don't have hand on...

Hi.... I'm new to DSP field.I'm asked to develop a speaker management system(to control delay,crossover,level etc) Since i don't have hand on experience in DSP,also feeling difficulty in handling C.Previously i was working in FPGA design category,also i'm thorough with verilog language. Is it possible to develop this system with the help of any FPGA kits. If not please suggest me a programming ...

Hi, I am a new comer in speech processing. I have a little question - why do we often have to split a long speech signal into shorter blocks with...

Hi, I am a new comer in speech processing. I have a little question - why do we often have to split a long speech signal into shorter blocks with an overlap for example - first block - from 0 to 20 ms (along time axis), second block from 10 ms to 30 ms ... and so on with the overlap between 2 consecutive blocks 10 ms. I just want to know the effect of this work - overlap. And one more question is...

Hi all , Does anyone know how to output ac3/dts es through SPDIF?I mean is there any specification on SPDIF ?

Hi all , Does anyone know how to output ac3/dts es through SPDIF?I mean is there any specification on SPDIF ?

Hi all i've been working on a BSS project where i'm trying to apply ICA methods. if i generated a convolutive mixture of two source signals; and...

Hi all i've been working on a BSS project where i'm trying to apply ICA methods. if i generated a convolutive mixture of two source signals; and i know exactly the FIR filter coefficients. how can i invert the process let me try to explain more i have two source signal S1 and S2 and i am creating two convolutive mixtures as follows Y1(z)= (1 - 0.5 z^-1) S1(z) + S2(z) Y2(z)= S1(z) + (1 -...

I have a question , every one must know that the jitter will effect the performance of audio ,such as SNR . However , if there is no data input to...

I have a question , every one must know that the jitter will effect the performance of audio ,such as SNR . However , if there is no data input to audio dac (you also can think the data are also 0), would it still effect it? such as noise floor .

Hi, I'm experimenting with cross-synthesis, and I was wondering how to scale my data after multiplication of the signals. I've been using...

Hi, I'm experimenting with cross-synthesis, and I was wondering how to scale my data after multiplication of the signals. I've been using unscaled fft, but I scale my ifft by 1/N, which seems to work. It seems that I need some other scaling factor for cross-synthesis, or possibly I need to do the scaling in a different place - the result of the ifft takes the combined signal way over ...

Hello, Is there any relation between dbu and db/dbV. I have IO box with option of Hi-Gain, +4dBu gain and -10dBV gain. Basically these are...

Hello, Is there any relation between dbu and db/dbV. I have IO box with option of Hi-Gain, +4dBu gain and -10dBV gain. Basically these are hardware switches present in the IO box. What does +4dbU recording actually mean? What does -10dBV recording actually mean? While performing recording of a file, I found that @ -10dBV recording, the recorded file used to get clipped, what mig...

2. dBU and dBV recording Posted by: "Rohith MP" r...@lntemsys.com mp_rohith Date: Sun Jun 28, 2009 8:59 am ((PDT)) Rohith, 0 dBu =...

2. dBU and dBV recording Posted by: "Rohith MP" r...@lntemsys.com mp_rohith Date: Sun Jun 28, 2009 8:59 am ((PDT)) Rohith, 0 dBu = 20 * log10( V / 0.7745 ) and 0 dBV = 20 * log10( V / 1.0 ). +4 dBu = 1.227 V = professional level coming out of a mixing console for example. -10 dBV = 0.316 V = consumer level coming out of a CD player for example. When you switch your IO box...

Hi~ I saw a function in a loudspeaker measurement program called "Gated Response" but there is no explaination. Could someone tell me what is...

Hi~ I saw a function in a loudspeaker measurement program called "Gated Response" but there is no explaination. Could someone tell me what is that? What does "Gate Response" do in audio aquisition? Many many thanks! Alvis