As the name suggests, a noise reducer on a Dictaphone serves to reduce, or even reduce, remove unwanted noises during a recording. It is often difficult to record a perfect soundtrack on a dictaphone, especially if the sound is taken in a noisy environment. It is therefore essential to restore audio data to ultimately produce good-quality audio content.

Find out what the noise reducer is for on a dictaphone

Background noises such as wind, buzzdue proximity to a high-voltage line, crowd hubbub, squeaking or slamming of a door can affect sound quality when recording on dictaphone. The noise reducer helps to reduce or even completely erase these background noises.

Adaptive noise reduction is one of the techniques for restoring audio data. As a result, the noise reducer on a dictaphone eliminates several types of noise, such as background noise from microphones, magnetic tape blasts, noise from a high voltage line near the recording site... This tool helps to control the intensity of background noise in the output signal and to significantly reduce it.

The appropriate proportion of noise reduction depends on two criteria:

- The kind of background noise

- The threshold for loss of quality for the rest of the signal.

If you want to get maximum noise reduction and minimal artifacts. Indeed, if the too high level of noise reduction could modulate or shift the sound. For preserve the sound quality of the recording, the signal-to-noise ratio should be increased from 5 to 20 dB. In order to optimize the results of the dictaphone's noise reducer, consider removing the DC lag beforehand.