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	x86 32-bit
Minimum version	TBC
Maximum version	{{{foobar2000_maximum}}}
UI module(s)	Default UI, Columns UI
Additional information
Use	Visualization
License	Proprietary
Discussion thread	{{{discussion_thread}}}
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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.

Options

Spectrum Options window.

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 worse time resolution and vice versa. Must 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.

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

See also

• Enhanced Spectrum analyzer (foo_enhanced_spectrum_analyzer)
• Spectrum Analyzer (foo_vis_spectrum_analyzer)

External links

• Discussion topic on hydrogenaudio
• foo_musical_spectrum.zip (0.9.1)