Resampling a Signal

Resampling a signal is the process to convert the sample rate of a signal to a new value. Usually, up-sampling (resp. down-sampling) refers to the operation that converts the sample rate of the signal to a higher (resp. lower) sample rate.

Note: When using down-sampling, some data may be lost in the signal. Indeed, as the bandwidth of a signal depends on its sample rate, reducing the sample rate will cause a reduction of the bandwidth of the signal

Resampling allows you to modify the sampling frequency of a signal. For example, you can convert a signal sampled with a 44,100 Hz sampling frequency (CD sampling rate) into a 48,000 Hz sampling frequency (Digital Audio Tape sampling rate).

To Resample a Signal:

  1. Open a temporal signal.
  2. On the Information panel, click
  3. Select Resample signal...
  4. In the Resampling box, enter a new sampling frequency value in Hertz.
  5. Click OK.
  6. Click Play to listen to the resampled signal.

    The signal is resampled.