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Downsample audio signal am I doing it right? - MathWorks
https://www.mathworks.com/matlabcentral/answers/433861-downsample-audio-signal-am-i-doing-it-right
Downsample audio signal am I doing it right?. Learn more about downsampling, audio processing, resampling comande
Signal audio - effect downsampling - MathWorks
https://www.mathworks.com/matlabcentral/answers/538719-signal-audio-effect-downsampling
You see, downsampling the signal alone doesn't increases the frequency of it. This effects of high pitch happens because you play the new sound with the older sampling rate. This makes the frequency of the sound increase M times, since it is like you're reading the "same" data but M times faster.
python - Downsampling wav audio file - Stack Overflow
https://stackoverflow.com/questions/30619740/downsampling-wav-audio-file
To downsample (also called decimate) your signal (it means to reduce the sampling rate), or upsample (increase the sampling rate) you need to interpolate between your data. The idea is that you need to somehow draw a curve between your points, and then take values from this curve at the new sampling rate.
downsampling - Trying to down-sample audio - Signal ...
https://dsp.stackexchange.com/questions/20303/trying-to-down-sample-audio
I am trying to downsample from $44100Hz$ to $8000Hz$, and I am not sure what I am doing wrong here. $44100 / 8000$ is $5.5125$, so I am getting hung up a little on the fractional remainder which is causing my implementation to play back slightly slower than it is supposed to.It seems that I need to somehow use the fractional remainder to compensate for this, but I …
Sampling Signals Part 3 (1/4) - Audio Signal …
https://www.youtube.com/watch?v=9x4JXRFUCns
http://adampanagos.orgWe conclude our material on sampling signals with some "real world" examples. This video and the next few in the playlist investigate ...
Downsampling audio for use in Machine Learning - Signal ...
https://dsp.stackexchange.com/questions/47152/downsampling-audio-for-use-in-machine-learning
The "right" way to do it when downsampling is to first apply an anti-aliasing filter and then decimate the signal but when upsampling, you first upsample and then apply interpolation (which can also be expressed as a filter). Various platforms provide functions to do just that (e.g. Python, MATLAB ).
Filtering and Downsampling | Spectral Audio Signal Processing
https://www.dsprelated.com/freebooks/sasp/Filtering_Downsampling.html
Free Books Spectral Audio Signal Processing Filtering and Downsampling Because downsampling by causes aliasing of any frequencies in the original signal above , the input signal may need to be first lowpass-filtered to prevent this aliasing, as shown in Fig. 11.5 . Figure 11.5: Lowpass filtering followed by downsampling.
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