Top "Signal-processing" questions

AKA digital signal processing (DSP).

Acoustic echo cancellation in Java

I'm implementing a VOIP application that uses pure Java. There is an echo problem that occurs when users do not …

java echo signal-processing javasound cancellation
How can I determine if my convolution is separable?

What makes a convolution kernel separable? How would I be able to tell what those separable parts were in order …

math image-processing signal-processing convolution
API to break voice into phonemes / synthesize new speech given speech samples?

You know those movies where the tech geeks record someone's voice, and their software breaks it into phonemes? Which they …

api audio signal-processing phoneme
Wavelet signal decomposition in Octave

I want to conduct signal decomposition using wavelet transformation in Octave. And I don't know, what I should do. I …

signal-processing octave wavelet wavelet-transform
How to look up sine of different frequencies from a fixed sized lookup table?

I am sampling a sine wave at 48 kHz, the frequency range of my sine wave can vary from 0 to 20000 Hz …

c embedded signal-processing lookup-tables trigonometry
Calculate energy of time domain data

I am new to digital signal processing. I have the following sensor sample data Time(milliseconds) data ------------------ ------------------- 0 0.30865225195884705 60 0.14355185627937317 100 -0.16846869885921478 156 …

matlab signal-processing fft dft
How to extract semi-precise frequencies from a WAV file using Fourier Transforms

Let us say that I have a WAV file. In this file, is a series of sine tones at precise 1 …

c audio wav signal-processing fftw
Music Recognition and Signal Processing

I want to build something similar to Tunatic or Midomi (try them out if you're not sure what they do) …

php python audio signal-processing audio-processing
Background noise removal from audio signals using FFT Python

I am currently doing a project at university where I am distinguishing between different instruments playing notes of the same …

python signal-processing fft frequency-analysis noise-reduction
Python - time frequency spectrogram

I have some 64 channel EEG data sampled at 256Hz and I'm trying to conduct a time frequency analysis for each …

python scipy signal-processing spectrogram time-frequency