Howtosignalprocessing
- How can sampling rate be reduced?
- Does sampling rate affect the size of an audio file?
- What happens when you decrease the sampling frequency?
How can sampling rate be reduced?
Decimation is a process in which sampling rate is reduced. It is also called down sampling. Consider a discrete time signal x (n). The sampling rate of x (n) can be reduced by a factor 'D' by taking every Dth sample of signal.
Does sampling rate affect the size of an audio file?
Higher sampling rate = larger file size
A higher sample rate leads to a larger file, but if the sample rate is too low, the recording will not contain enough samples to capture all of the detail of the sound.
What happens when you decrease the sampling frequency?
As the sampling frequency decreases, the signal separation also decreases. When the sampling frequency drops below the Nyquist rate, the frequencies will crossover and cause aliasing.
