foobar2000:Components/Musical Spectrum (foo_musical_spectrum)

Musical Spectrum
	;
Developer(s)	fismineur
Repository
Release information
Initial release	October 10, 2012
Stable release
Preview release	0.9.1 (November 21, 2012)
foobar2000 compatibility
Architecture	{{{foobar2000_architecture}}}
Minimum version	TBC
Maximum version	{{{foobar2000_maximum}}}
UI module(s)	Default UI, Columns UI
Additional information
Use	Visualization
License	Proprietary
Discussion thread	{{{discussion_thread}}}
	View all components

A spectrum analyzer visualisation which measures and displays frequencies corresponding to musical notes (eg. A4 = 440Hz). Compatible with the default user interface and Columns UI.

This component is no longer being updated in favor of a successor called Sb-sDFT (foo_sb_sdft) that doesn't use FFT and instead makes use of sliding DFT to calculate constant-Q transform.

Options

The following options can be accessed by right-clicking the spectrum and selecting "Options".

Processing

Notes: Increase or decrease the visible notes, from C0 (16.35 Hz) to A11 (56.32 kHz).; Default: A1 - C9

Amplitude: Set the visible amplitude, from -80dB to 80dB.; Default: -60dB - 0dB

Channels: Select any number of 18 available input channels.; Default: All Channels

Interval: Set the FFT hop size in milliseconds, frame rate is inversely proportional to Interval parameter.; Default: 25 milliseconds

FFT size: Set the FFT (fast Fourier transform) size, from 1,024 samples to 32,768 samples. Higher values have better frequency resolution at the cost of bad time resolution. It doesn't have to be a power of two.; Default: 8,192 samples

Pitch (A4): Set the frequency for A4. To maintain accuracy, this should be set to 440 Hz.^[1]; Default: 440 Hz

Transpose: The number of semitones by which to transpose the visible notes, from -12 to 12.; Default: 0 semitones

Peaks

Hold time: Set the amount of time in milliseconds (ms) before the peak drops.; Default: 500 ms

Gravity: Set the speed at which the peaks drop.; Default: 50 dB/s²

References

↑ A440 (pitch standard) on Wikipedia

External links

Discussion topic on hydrogenaudio
foo_musical_spectrum.zip (0.9.1)

[1] A440 (pitch standard) on Wikipedia

[1]