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Explanation of 44.1 kHz CD sampling rate - Columbia University
http://www1.cs.columbia.edu/~hgs/audio/44.1.html
The CD sampling rate has to be larger than about 40 kHz to fulfill the Nyquist criterion that requires sampling at twice the maximum analog frequency, which is about 20 kHz for audio. The sampling frequency is chosen somewhat higher than the Nyquist rate since practical filters neede to prevent aliasing have a finite slope. Digital audio tapes (DATs) use a sampling rate of 48 kHz.
Digital Audio Basics: Audio Sample Rate and Bit Depth
https://www.izotope.com/en/learn/digital-audio-basics-sample-rate-and-bit-depth.html
The most common audio sample rate you’ll see is 44.1 kHz, or 44,100 samples per second. This is the standard for most consumer audio, used for formats like CDs. This is not an arbitrary number. Humans can hear frequencies between 20 Hz and 20 kHz.
Sampling Frequency & Depth
https://alness.gnomio.com/pluginfile.php/258/mod_resource/content/1/On-line%20Resources/Multimedia/3%20Digitised%20Sound%20Data/sampling_frequency__depth.html
4000 samples/sec Precision = 40. You can see that as the rate and precision increase, the fidelity (the similarity between the original wave and the DAC's output) improves. In the case of CD sound, fidelity is an important goal, so the sampling rate is 44,100 samples per second and the number of gradations is 65,536.
Compact Disc Sample Rate | Learn About the Compact …
https://www.cardinalpeak.com/blog/why-do-cds-use-a-sampling-rate-of-44-1-khz
The 2 Most Common CD Sampling Rates: 44.1kHz & 48kH. First, a little background: When you sample an audio waveform, you have a choice as to how many samples you take per second. Over the years, a number of standards have developed; in digital media used for entertainment purposes, the two most common sampling frequencies are 44.1 kHz and 48 kHz.
High bitrate audio is overkill: CD quality is still great ...
https://soundguys.com/high-bitrate-audio-is-overkill-cd-quality-is-still-great-16518/
You only need a sample rate of 44.1kHz. If you’ve looked at your music player’s information tab, you may notice some of your songs have sample rates of 44.1kHz, or 48kHz. You may also notice that your DAC or a phone like the LG V30 support files with sample rates up to 384kHz. That’s overkill.
Sampling Rates, Sample Depths, and Bit Rates: Basic Audio ...
https://www.vocitec.com/docs-tools/blog/sampling-rates-sample-depths-and-bit-rates-basic-audio-concepts
An audio frame is the group of audio samples for an instance of time that come from one or more audio channels. The most common values for the sampling rate is the aforementioned 8kHz (most common for telephone communications), 44.1kHz (most common for music CDs), and 48kHz (most common for audio tracks in movies).
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