TYPE | DESCRIPTION | EXAMPLE |
---|---|---|
REGULAR STFT | Most common spectrogram type (can be found in other editors) It has a fixed uniform time-frequency resolution. This is the simplest and fastest drawing mode in RX. | |
AUTO-ADJUSTABLE STFT | Automatically adjusts FFT size (i.e. time and frequency resolution of a Spectrogram) according to the zoom level. For example, if you zoom in horizontally (time) you’ll see that percussive sounds and transients will be more clearly defined. When you zoom in vertically (frequency), you’ll see individual musical notes and frequency events will appear more clearly defined. | |
MULTI-RESOLUTION | Calculates the Spectrogram with better frequency resolution at low frequencies and better time resolution at high frequencies. This mimics psychoacoustic properties of our perception, allowing the Spectrogram display to show you the most important information clearly. | |
ADAPTIVELY SPARSE | Automatically varies the time and frequency resolution of the Spectrogram to achieve the best Spectrogram sharpness in every area of the time-frequency plane. This often lets you see the most details for a thorough analysis, but it’s the slowest mode to calculate. |
Frequency Scale Type | Description |
---|---|
LINEAR | Displays frequencies spread out in a uniform way. This is most useful when you want to analyze higher frequencies. |
LOGARITHMIC | This scale puts more attention on lower frequencies. |
MEL | the Mel scale (derived from the word Melody) is a frequency scale based on how humans perceive sound. This selection is one of the more intuitive choices because it corresponds to how we hear differences in pitch. |
BARK | The Bark scale is also based on how we perceive sound, and corresponds to a series of critical bands. |