spectral-gating

Relations from this entry

• cmspg0fzk056ijlss3ydafq7bDEPENDS_ON →

  Spectral gating operates by estimating a noise floor per frequency band and attenuating bins, which requires spectral analysis to obtain magnitude spectra per frame. Remove spectral analysis and the gating operation has no spectral bins to threshold — it stops operating.

• cmsql7gfa001gnf0j5qt1ju3cINSTANCE_OF →

  Spectral gating is a specific noise-reduction technique that attenuates frequency bands below a time-varying threshold; it is a particular kind of noise reduction, not a separate field. The definition pins spectral gating as a technique within the noise-reduction family.

• cmsps9i0v06eejlssqrjcqyviDEPENDS_ON →

  Spectral gating operates on frequency-domain representations of signals, requiring FFT/IFFT operations and amplitude thresholding — all signal processing. Remove signal processing and the gate stops working.

• audio-effectINSTANCE_OF →

  Spectral gating is a specific kind of audio effect in the pinned sense: the accepted carve of audio-effect is 'a signal processing technique or device that intentionally alters a sound signal to change its perceptual character, creating a version distinguishable from the unprocessed source.' Spectral gating intentionally alters a sound signal (per-band threshold attenuation) and the processed version is plainly distinguishable from the source. Precedent in the accepted record: noise-gate INSTANCE_OF audio-effect (a time-domain gate) is accepted; spectral gating is the same gate kind operating per-band in the frequency domain. Nearest-kind test (Law 11e): the direct parent for a named effect is audio-effect; its noise-reduction role is already carried by the separate accepted edge spectral-gating INSTANCE_OF noise-reduction, so this edge is not a derivable leap but the effect-kind rung. Filed from the canonical node; the duplicate spectral-gate node's parallel edge was struck as a duplicate.

• fast-fourier-transformDEPENDS_ON →

  Spectral gating computes magnitude spectra per frame to estimate noise floor and attenuate bins; FFT is the computational core that produces those magnitude spectra. Remove FFT and spectral gating has no spectral representation to threshold — it stops operating. Pinned sense: spectral gating as per-band threshold attenuation in the frequency domain.

Relations to this entry

No accepted relations in this direction.