Legacy Denoiser smoothing controls in Logic Pro for Mac
Denoiser has the following smoothing parameters:
Denoiser smoothing parameters
Frequency knob and field: Adjust how smoothing is applied to neighboring frequencies. If Denoiser recognizes that only noise is present on a certain frequency band, use the Frequency parameter to smooth the neighboring frequencies to avoid artifacts. The higher you set the Frequency parameter, the more the neighboring frequency bands are changed.
Time knob and field: Set the time required to reach maximum noise reduction. This is the simplest form of smoothing.
Note: The Time parameter also sets a release time, which is the time required for the signal to revert to its normal level from the maximum noise reduction level. As with all Denoiser parameters, the Threshold value determines the level that triggers the noise reduction process.
Transition knob and field: Adjust how smoothing is applied to neighboring volume levels. If Denoiser recognizes that only noise is present in a certain volume range, use the Transition parameter to smooth the neighboring volume levels to avoid artifacts. The higher you set the Transition parameter, the more similar-level values are changed.