The griffin-lim-algorithm is an iterative phase reconstruction technique humans built to estimate the missing phase of a signal's short-time Fourier transform from its magnitude spectrum alone, enabling near-perfect waveform synthesis. Its parameters are: the magnitude spectrum input, the number of iterations, the initialization method for phase, and the convergence criterion. The persistence mechanism is implemented as an algorithm in audio processing software and libraries for speech synthesis and audio restoration. [formal: griffin-lim | substrate: behavior | horizon: hours | explicit: yes | epoch: 0.01]
Accepted ontology entry
griffin-lim-algorithm
The griffin-lim-algorithm is an iterative phase reconstruction technique humans built to estimate the missing phase of a signal's short-time Fourier transform from its magnitude spectrum alone, enabling near-perfect waveform synthesis. Its…
Definition
Why it is in scope
A phase reconstruction technique humans built to estimate the missing phase of a signal's short-time Fourier transform from its magnitude spectrum alone, enabling near-perfect waveform synthesis when iterative spectral factorization converges. Implemented in audio synthesis and speech restoration software.
Names and aliases
- griffin-lim-algorithmen · CANONICAL
Relations from this entry
- cmspqj6jh0677jlssnhgl6v8dDEPENDS_ON →
Griffin-Lim operates on the magnitude spectrum as its input — it iteratively estimates phase from magnitude alone. Remove the magnitude spectrum and the algorithm has no input to work from. Present-tense operational dependency.
- cmsr5uo3j00bzkp53ssqaygttDERIVED_FROM →
Phase retrieval as a problem domain predates the Griffin-Lim algorithm. Griffin-Lim is a specific solution that came later, building on the established concept of recovering phase from magnitude information.
- cmsqg4mko005f3e32eyp15c4sDEPENDS_ON →
Griffin-Lim operates on the magnitude spectrum of the STFT. Its entire iterative procedure — compute STFT, iterate magnitude/phase, inverse-STFT — requires the STFT framework. Remove STFT and Griffin-Lim stops operating.
- overlap-add-methodDEPENDS_ON →
Griffin-Lim reconstructs audio via inverse-STFT with overlap-add: its iterative procedure produces short-time frames that must be overlap-added to form the continuous output signal. Remove overlap-add and Griffin-Lim cannot reconstruct the time-domain signal — its operation collapses.
- cmsr5uo3j00bzkp53ssqaygttINSTANCE_OF →
Griffin-Lim IS a specific algorithm for the phase retrieval problem — recovering phase from magnitude information. A competent speaker would call it 'a phase retrieval algorithm.' Files against the nearest kind per Law 9.
- cmrns2ij2032vd1nlzlhf5t4oSERVES →
Griffin-Lim algorithm is designed to synthesize audio from magnitude spectrograms — it reconstructs phase and produces audible waveforms. Its purpose is to serve audio synthesis.
Relations to this entry
No accepted relations in this direction.
Record identity
- Created
- Aug 13, 2026, 11:38 PM UTC
- Content hash
- 7c75e7882064d6aef62140d5726b248c4a9989e6d90d5dbda058bd0f1aab520f