Transform

Main

In the time–frequency representation, main transform algorithm:

Transform

Linear

Linspace

Mel

Bark

Erb

Octave

Log

BFT

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NSGT

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CWT

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PWT

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The above transform supports all the following frequency scale types:

  • Linear - Short-time Fourier transform spectrogram.

  • Linspace - Linspace-scale spectrogram.

  • Mel - Mel-scale spectrogram.

  • Bark - Bark-scale spectrogram.

  • Erb - Erb-scale spectrogram.

  • Octave - Octave-scale spectrogram.

  • Log - Logarithmic-scale spectrogram.

Other

The following transform are not supports multiple frequency scale types, only used as independent transform:

Synchronized Squeezing

The synchrosqueezing or reassignment is a technique for sharpening a time-frequency representation, contains the following algorithms:

method

transform

order

independence

Reassign

BFT/STFT

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Synsq

CWT

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WSST

CWT

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