Top "Signal-processing" questions

AKA digital signal processing (DSP).

Find Pitch in speech frame

I have a speech frame. when I compute the LP residual, I could not estimate the pitch truly. I need …

matlab signal-processing speech-recognition pitch pitch-tracking
Real-time spectrum analyzer with API

I'm looking for a C or C++ API that will give me real-time spectrum analysis of a waveform on Windows. …

c++ spectrum analyzer fft signal-processing
Low-pass filter in carrier modulation and demodulation

I'm designing a project in which an array is passed through quadrature amplitude modulation (QAM) modulator, and then do carrier …

matlab signal-processing lowpass-filter
Sine Table Interpolation

I want to put together a SDR system that tunes initially AM, later FM etc. The system I am planning …

signal-processing trigonometry interpolation radio nonlinear-functions
Source for a good, simple, soft modem library

I a doing a weird project, and looking to convert some short, simple datagrams to audio - send them over …

iphone signal-processing modem
Step detection in one-dimensional data

Is there an existing implementation in Python for detecting steps in one dimensional data? E.g. something that detects one …

python signal-processing
How to change pyplot.specgram x and y axis scaling?

I have never worked with audio signals before and little do I know about signal processing. Nevertheless, I need to …

matplotlib signal-processing spectrogram
Calculating the Power spectral density

I am trying to get the PSD of a real data set by making use of fftw3 library To test …

c signal-processing fftw
STFT/FFT work flow order

I am trying to implement FFT, and I am OK with the code etc, but the general order of things …

signal-processing fft overlap dft
Frequency Modulation Synthesis Algorithm

Based on what I read, I've made an algorithm for FM sound synthesis. I'm not sure if I did it …

c audio signal-processing core-audio synthesis