


This aids in preserving high-frequency signal harmonics that may be buried and not detected otherwise. Enhancement predicts a signal’s harmonic structure and places less noise reduction in areas where possible signal harmonics could be buried in noise.

ENHANCEMENT: Enhances signal harmonics that fall below the noise floor.Too much Synthesis may cause apparent distortion in the signal. Increasing Synthesis can increase the sense of life and air in processed audio.The synthesized harmonics remain at the level of the noise floor, and serve to fill in gaps in high frequencies caused by processing. When Synthesis is set to a value greater than zero, signal harmonics are synthesized after denoising.SYNTHESIS: Synthesizes high frequency material after denoising.However, when using FFT-based processing, the more audio you remove from your source, the more likely you are to create undesirable artifacts. The greater the FFT size, the greater the frequency resolution, i.e., notes and tonal events will be clearer at larger sizes. Fast Fourier Transform: a procedure for the calculation of a signal frequency spectrum.Lower FFT sizes allow for faster response to changes in the signal and produce fewer noisy echoes around transient events.Higher FFT sizes give you more frequency bands allowing you to cut noise between closely spaced signal harmonics, or cut steady-state noise harmonics without affecting adjacent signals.FFT SIZE (ms): Selects the time and frequency resolution of the processing.These algorithms have higher latency and computational complexity. ADVANCED & EXTREME algorithms: Perform joint time-frequency analysis of the audio signal which results in better quality and fewer “musical noise” artifacts.This is a fast algorithm with low latency that is suitable for real-time operation. Release time of sub-band gates is controlled by the Release slider. SIMPLE algorithm: Performs independent noise gating in every frequency channel of FFT.The strength of smoothing is controlled by the Smoothing slider. ALGORITHM: Selects the smoothing algorithm for the removal of random ripples (“musical noise” artifacts) that can occur in the spectrogram when processing your audio.These artifacts are sometimes described as “chirpy” or “watery” sounds left behind during the noise reduction process.

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