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Understanding Upsampling/Interpolation | Audio Science ...
https://www.audiosciencereview.com/forum/index.php?threads/understanding-upsampling-interpolation.1447/#:~:text=A%20resampling%2Fupsampling%20algorithm%20can%20make%20the%20sound%20different%2C,We%20are%20simply%20manipulating%20the%20information%20we%20have.
Audio Super Resolution - GitHub Pages
https://kuleshov.github.io/audio-super-res/
Using deep convolutional neural networks to upsample audio signals such as speech or music. Code Paper We train neural networks to impute new time-domain samples in an audio signal; this is similar to the image super-resolution problem, …
What is the point of upsampling? | Audio Science Review ...
https://www.audiosciencereview.com/forum/index.php?threads/what-is-the-point-of-upsampling.7329/
Converting a digital (sampled) signal to a continuous analogue waveform requires interpolation to produce the values between sample points. Doing part of this interpolation digitally (upsampling) simplifies the analogue circuitry and gives better results. That's all there is …
Upsampling and Downsampling - Stanford University
https://ccrma.stanford.edu/~jos/JFB/JFB_2up.pdf
•Advanced audio compression algorithms (“perceptual audio coding”) are based on critically sampled filter banks, for obvious reasons. •Important Point: We normally do not require critical sampling for audio analysis, effects, and music 19 applications. We normally only need it when compression is a requirement. Two-Channel Critically Sampled Filter Banks 2) After …
c - Resampling a sound sample, what filter do I use ...
https://stackoverflow.com/questions/4393545/resampling-a-sound-sample-what-filter-do-i-use
You are up-sampling at a rate 44100 times the original sample rate. For example, if your input was at 10kHz your intermediate cbuf [] would be at 441MHz which is a tad high for most audio analysis. Assuming you want cbuf [] to be at 44100Hz then you only need to create 44100/OrigSampleRate of samples in cbuf [] per sample in sampdata [].
Adventures in Upsampling to DSD - Software - Audiophile …
https://audiophilestyle.com/forums/topic/38076-adventures-in-upsampling-to-dsd/
Upsampling to DSD 64 bypasses even more of the DAC which normally turns PCM into something like DSD. DSD 128 should provide the additional benefit of moving ultrasonic noise further away from the audio band. I don't have any idea why DSD 256 would be better or if I had compatible hardware DSD 512. You are very close to the answer already.
DigitalAudioResamplingHomePage - Stanford …
https://ccrma.stanford.edu/~jos/resample/resample.pdf
• The free Open Source Audio Library Project (OSALP)15 (LGPL) contains a C++ class based on resample. • The Speex16 speech coder/decoder (based on CELP) contains a variation of the resample algorithm in the file resample.c, is free and open-source, and is released under a BSD-style license (i.e., free for both commercial and noncommercial ...
Upsampling or Oversampling? - Stereophile.com
https://www.stereophile.com/asweseeit/344/index.html
Ayre Acoustics' main man was talking about "upsampling," whereby conventional "Red Book" CD data, sampled at 44.1kHz, are converted to a datastream with a higher sample rate. (Because of its association with DVD-Audio, 96kHz is often chosen as the new rate.)
Upsampling - Wikipedia
https://en.wikipedia.org/wiki/Upsampling
In digital signal processing, upsampling, expansion, and interpolation are terms associated with the process of resampling in a multi-rate digital signal processing system. Upsampling can be synonymous with expansion, or it can describe an entire process of expansion and filtering. When upsampling is performed on a sequence of samples of a signal or other continuous function, it …
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