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Resampling - MATLAB & Simulink - MathWorks
https://www.mathworks.com/help/signal/ug/resampling.html
The basic syntax for resample is. y = resample (x,p,q) where the function resamples the sequence x at p/q times the original sample rate. The length of the result y is p/q times the length of x. One resampling application is the conversion of digitized audio signals from one sample rate to another, such as from 48 kHz (the digital audio tape standard) to 44.1 kHz (the compact disc …
Resampling - dspGuru
https://dspguru.com/dsp/faqs/multirate/resampling/
The interpolation factor is simply the ratio of the output rate to the input rate. Given that the interpolation factor is L and the decimation factor is M, the resampling factor is L / M. In the above example, the resampling factor is 147 / 160 = 0.91875. 4.1.4 Is there a restriction on the resampling factor I can use? Yes.
scipy.signal.resample — SciPy v1.7.1 Manual
https://docs.scipy.org/doc/scipy/reference/generated/scipy.signal.resample.html
The resampled signal starts at the same value as x but is sampled with a spacing of len(x) / num * (spacing of x). Because a Fourier method is used, the signal is assumed to be periodic. Parameters x array_like. The data to be resampled. num int. The number of samples in the resampled signal. t array_like, optional
resampling - How do I resample an audio signal without ...
https://dsp.stackexchange.com/questions/47536/how-do-i-resample-an-audio-signal-without-altering-its-pitch
Simple resampling would not work in your case. Resampling, while stretches/compresses the signal in the time domain, also does an inverse operation in the frequency domain. Some basic time stretching algorithms you might want to look into (which do not result in pitch change) are: 1) OLA - overlap and add. 2) PSOLA - pitch synchronous overlap …
lowpass filter - Resampling an audio signal - Signal ...
https://dsp.stackexchange.com/questions/34741/resampling-an-audio-signal
It will be between 48kHz and 96kHz audio (both upsampling and downsampling). Looking at the Wikipedia page for resampling I see there are two approaches: Decimation and upsampling. Polynomial interpolation e.g. Lagrange.
DigitalAudioResamplingHomePage - Stanford …
https://ccrma.stanford.edu/~jos/resample/resample.pdf
Shannon’s sampling theorem says it is possible to restore an audio signal exactly from its samples, it makes sense that the best digital audio interpolators would be based on that theory. Such “ideal” ... 2 Free Resampling Software • Note: libresampleand sndfile-resample(from libsamplerate) are already included in ...
Digital Audio Resampling Home Page - Stanford University
https://ccrma.stanford.edu/~jos/resample/
Digital Audio Resampling Home Page. Abstract: This document describes digital audio sampling-rate conversion and related concepts. Open-source software is provided, and pointers are given to related projects and papers. Detailed Contents (and Navigation) What is Bandlimited Interpolation? Free Resampling Software;
Resampling Audio in MATLAB - Stack Overflow
https://stackoverflow.com/questions/17796635/resampling-audio-in-matlab
Yes, resample is your function. To downsample x from 44100 Hz to 22050 Hz: y = resample (x,1,2); (the "1" and "2" arguments define the resampling ratio: 22050/44100 = 1/2) To upsample back to 44100 Hz: x2 = resample (y,2,1); Note that the resample function includes the necessary anti-aliasing (lowpass) filter.
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