Sampling rate or sampling frequency defines the number of samples per second (or per other unit) taken from a continuous signal to make a discrete or digital signal.
The Nyquist Therorem states that the lowest sampling rate has to be equil to or greather than 2 times the highest frequency. Therefore the sampling rate should be 400Hz or more.
It states that for satisfactory representation of the sampled signal the sampling frequency must be atleast equal to twice the highest input freq, which is called nyquist sampling. If its less than twice, undersamplin occurs resulting in distortion.
if the sampling rate is twice that of maximum frequency component in the message signal it is known as nyquist rate
>8000hz
Rate refers to frequency, while size refers to the amount. Thus, Sampling Rate is measured in Hertz (number of times per second a sample is taken), and Sampling Size is measured in Bits (number of binary digits of information taken at a single time). Thus, if you Sample at 10 Hz/8 bits, that means you take 8 bits of information, 10 times per second.
may be 128
This process is called PAM [pulse Amplitude modulation] Sampling: here is a Shout-out for the actual PAM Sampling rate - meanwhile assume a PAM sampling rate of once per millisecond: this means that each millisecond the natural audio acoustic wave's Amplitude is sampled/determined and the Amplitude of this acoustic wave is Quantified by another process called Digitization.
This site explains it: http://www.cs.columbia.edu/~hgs/audio/44.1.html
44.1 kHz
Sampling rate and bit depth are two key parameters in digital audio that affect sound quality. The sampling rate refers to how many times per second an audio signal is sampled, determining the frequency range that can be accurately captured. Bit depth, on the other hand, defines the number of bits used to represent each sample, influencing the dynamic range and detail of the audio. Higher sampling rates and bit depths generally lead to better audio fidelity, but they also result in larger file sizes.
PCM (Pulse Code Modulation) sampling time of 125 microseconds is typically associated with a sampling rate of 8,000 samples per second. This rate is sufficient for capturing audio signals within the frequency range of human hearing, which is generally up to 20 kHz, in accordance with the Nyquist theorem. By sampling at this rate, the system effectively captures the necessary signal details while minimizing aliasing and ensuring good audio quality.
The sampling rate affects the audio quality.For instance,a song sampled at 192 kilobits per second is three times the size of a song sampled at 64 kilobits per second and will be of better sound quality.
Sampling rate is a defining characterstic of any digital signal. In other words, it refers to how frequently the analog signal is measured during the sampling process. Compact disks are recorded at a sampling rate of 44.1 kHz.
As we know that the sampling rate is two times of the highest frequency (Nyquist theorm) Sampling rate=2 Nyquist fs=8000hz/8khz
44.1kHz
what is the rate unit of 1,700 and 40
Manual digitization Handsup digitization