Forums Update, Tips and Tricks - Please Read!

Started by stephaneb 1 year ago7 replieslatest reply 4 days ago477 views
It's been a few months since the launch of the new forums.  Here are a few thoughts. The thumbsup and beer buttons    If there is one thing that could have a...

Noise aliasing with CIC filter

Started by flutekick 7 hours ago3 replieslatest reply 39 minutes ago46 views
Hi,Would the amount of noise aliasing/folding back into signal band change as we change decimation ratio of the CIC filter. (Assume the input has white noise)In...

Frequency Interpolation Algorithms

Started by Wicky21 2 days ago9 replieslatest reply 23 hours ago73 views
I'm currently doing a project to analyze the spectral components of an environmental signal. In that case I'm using STFT.  But now im stuck due to i have bunch...

Audio FFT Filter, noisy clicks

Started by edinsam 2 days ago14 replieslatest reply 1 day ago70 views
Well, not a filter exactly, just an FFT in-out test.  I got a simple test program in a loop (using fftw) * Read 2048 samples of audio at 48000 (16 bits stereo,...

Differential encoder simulation

Started by simonzz 1 week ago7 replieslatest reply 6 days ago51 views
Hello,I am studying the following differential encoder:where the quantizer is defined as \( Q(y) = \text{sgn}(y) \)and I would like to be sure I understand it correctly,...

Floating Point to Fixed Point Conversion

Started by nehavedam 2 weeks ago11 replieslatest reply 7 days ago95 views
Hi!I am working on converting a floating point MATLAB code into fixed point C code. The code is to be run on a DSP platform, the specifics of which are yet to be...

Differential frequency measurement

Started by techn0mad 2 weeks ago12 replieslatest reply 1 week ago79 views
Hi all:Can anyone suggest a good way of doing DTMF-like tone detection by determining the (known) frequency difference between limited time duration tone-pairs?...

Frame Synchronization ZigBee

Started by cogwsn 1 week ago33 views
Hi, If my understanding is correct, most of the 802.15.4 receiver implementations perform frame synchronization i.e. find the start of the frame using the preambles...

LPC to LSP Confusion...

Started by fyfe93 2 weeks ago1 replylatest reply 2 weeks ago64 views
Hi Everyone,I'm working on a speech vocoder and have so far been able to use the SPTK functions to achieve most of this. However I'm confused as I want to be able...

Reverberation rejection filter

Started by naumankalia 4 weeks ago10 replieslatest reply 2 weeks ago77 views
Hi all I am working on colored noise (reverberation) rejection algorithms. One approach present in literature is through prewhitening filter. In this approach as...

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