These terms refer to the nyquist sampling theorem, but are used in different ways by different authors. They can be u
* The highest [[frequency]] contained in a signal
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...xample an input Frequency of 30kHz with a sampling rate of 44100 becomes a frequency of 44100-30000=14100Hz when the signal is reconstructed). This is similar t
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'''Frequency''' is defined as the number of cycles of a periodic motion in a unit of tim
The SI unit of frequency is called hertz (Hz, after its inventor Heinrich Hertz). One hertz correspo
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...annel]] streams. It's responsible of reproducing the bass frequencies at [[sampling rate]]s up to 120Hz. On a multichannel setup, it's played by the subwoofer.
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* [[Frequency]]
* [[Frequency domain]]
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...up to 192,000 Hz, using [http://shibatch.sourceforge.net/ Shibatch's SSRC sampling rate converter].
...adjustable phase response, pass/stop band, filter rejection and real-time frequency/time domain graphs.
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...cutoff frequency of the low-pass filter, the alienating noise in the high frequency range is corrected.
'''AA (dB)''' - Anti-aliasing Rejection (applies to down sampling only). Typical settings:
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concentrate most of the noise power in a certain frequency band so
noise out of perceptually important frequency bands to perceptually less
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...noise reduction) may operate more effectively in the audible range if the sampling rate is increased, but this is not a general rule of thumb.
* How low of a frequency can LPs produce?
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* MP3 audio is stored in the frequency domain (values for frequencies) instead of the time domain (values for samp
...t blocks it is sfb12. The frequency at which it starts also depends on the sampling rate. The value of ~16Khz is for 44.1Khz material.
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...mpling algorithms use more CPU time, since they require translation to the frequency domain. Modern PC processors (~2 GHz clock) can easily deal with very high-
* Sox Sampling rate conversion. W. G. Unruh 2006: http://www.theory.physics.ubc.ca/soundca
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* Sampling Frequency - 16000, 32000, 44100, 48000 (some are optional, see references)
* Frequency response - The range of frequencies the headphones can reproduce
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The term is also commonly used when discussing digital sampling and sample rates. For example, the MP3 audio compression algorithm is often
...treated as one-tenth of a "real" channel. This is reasonable, because low-frequency effects (LFE) channel do carry little information.
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* Flexible: supports several [[sampling rate]]s (8000–96000 Hz), bit depths, and [[multichannel]] (up to 48 channel
...an include up to 48 full-bandwith audio channels (up to 96 kHz) and 15 Low Frequency Enhancement channels (limited to 120 Hz) plus 15 data streams.
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...[[multichannel]] files (see [http://www.mp3surround-format.com/ page]), [[sampling rate]]s from 16 kHz to 24 kHz (MPEG2 Layer 3) and 32 kHz to 48 kHz (MPEG1 L
...ring encoding 576 time domain samples are taken and are transformed to 576 frequency domain samples. If there is a transient 192 samples are taken instead of 57
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...ls. Officially, sampling rates up to 384 kHz are supported, but "any WAVE" sampling rate (4 GiHz – yes ''giga''hertz, > sixteen octaves above audible) co
...rld music files, there has been released one publicity stunt at a sampling frequency where FLAC requires its <code>--lax</code> switch.<ref>[https://hydrogenaud
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...ast two lengths (default quality preset (-q 5) = 32, 64 & 1024 [[Wikipedia:Sampling %28signal processing%29|samples]]). After some manipulation, the results of
The upper frequency limit used in the calculation of minimum signal power varies, dependent on
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Also see [[#Recommended Sampling Rate and Bitrate Combinations|Recommended Sampling Rate and Bitrate Combinations]].
== Recommended Sampling Rate and Bitrate Combinations ==
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...avily clipped and limited CDs in the modern mastering style have more high-frequency content than earlier masters. In general, increasing the perceived volume o
...ooves of a finite modulation width (measured in microns) that decreases in frequency. For instance, a cartridge may only be able to track a 300 µm-wide groove a
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