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SampleRate Enumeration

Typical samples rates supported by wave files.

Namespace: GSF.Media
Assembly: GSF.Media (in GSF.Media.dll) Version: 2.4.205-beta
Syntax
public enum SampleRate
View Source
Members
Member nameValueDescription
Hz80008,0008000 samples per second
Hz1102511,02511025 samples per second
Hz1200012,00012000 samples per second
Hz1600016,00016000 samples per second
Hz2205022,05022050 samples per second
Hz2400024,00024000 samples per second
Hz3200032,00032000 samples per second
Hz4410044,10044100 samples per second
Hz4800048,00048000 samples per second
Remarks

Quantization of the analog waveform, or signal, is a real-time process operating over a continuous time-period which produces a “stream” of digital values. In order for the process to work you must define the rate at which new digital values are measured, or sampled, from the analog signal. The rate at which new values are measured is called the “sampling rate” (a.k.a., the sampling frequency).

Audio based Compact Discs use a sampling rate of 44,100 Hz; this means the the Nyquist frequency is 22,050 Hz (i.e., the upper bound on the highest frequency that the digital data can clearly represent without aliasing). This sample rate selection was no accident as the range of hearing for a healthy young person is approximately 20 to 20,000 Hz.

In plain English, higher sampling rates will equate to higher quality sound reproduction but anything above 44,100 Hz will not be perceived as better quality by normal human beings.

See Also