foobar2000:Components/Spectrum Analyzer (foo_vis_spectrum_analyzer)

From Hydrogenaudio Knowledgebase
< Foobar2000:Components
Revision as of 22:34, 13 November 2023 by TF3RDL (talk | contribs) (idk the FFT size can be set to a non-power of two values, which original foo_musical_spectrum don't have)

This article is a stub. You can help the Hydrogenaudio Knowledgebase by expanding it.

Experimental component

This component is considered an early prototype and it is under development as it was released as an early access. Bugs and issues with this component are expected and currently it has no CUI support.

Spectrum Analyzer

foo_vis_spectrum_analyzer
Developer(s) pqyt
Repository
Release information
Initial release
Stable release
Preview release 0.1.0.2 (November 13, 2023; 1 year ago)
foobar2000 compatibility
Architecture x86 32-bit, x86 64-bit
Minimum version 2.0
Maximum version
UI module(s) Default UI
Additional information
Use Visualization
License
Discussion thread {{{discussion_thread}}}
View all components

A recreation of Musical Spectrum component (and later, the concept component FFT Analyzer (foo_fft_analyzer) since this component is in Early Access state) for foobar2000 v2.x and 64-bit versions.

Configuration

You can tweak the configuration by creating a foo_musical_spectrum.json next to the foo_musical_spectrum.dll file. The content of the file is reread at the start of a new track. 

   {
       "FFTSize": 4096,
       "FrequencyDistribution" : 1,
       "ScalingFunction" : 1,
       "ScalingFunctionFactor" : 0.0,
       "NumberOfBands" : 160,
       "MinFrequency" : 20,
       "MaxFrequency" : 20000,
       "Bandwidth" : 0.5,
       "BandsPerOctave" : 12,
       "MinNote" : 0,
       "MaxNote" : 143,
       "Detune" : 0,
       "Pitch" : 440.0,
       "SummationMethod" : 1,
       "XAxisMode" : 3
   }

FFTSize: 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768

FrequencyDistribution: Determines which parameters are used to generate the frequency bands. 

   0: Generate frequency bands based on the frequency parameters.
   1: Generate frequency bands based on the note parameters.

ScalingFunction: Determines which frequency scaling function is used. 

   0: Linear
   1: Logarithmic
   2: Shifted logarithmic
   3: Mel (AIMP)
   4: Bark
   5: Adjustable Bark
   6: ERB
   7: Cams
   8: Hyperbolic Sine
   9: NthRoot
   10: Negative exponential
   11: Period

NumberOfBands: Number of frequency bands to generate (2 to 512)

MinFrequency: Frequency of the first band, 0Hz to 96000Hz.

MaxFrequency: Frequency of the last band, 0Hz to 96000Hz.

Bandwidth: 0.0 to 64.0

BandsPerOctave: Number of bands per octave (1 to 48)

MinNote: Number of the first note. (C0 = 0, C1 = 12, ...), 0 to 143 (12 octaves)

MaxNote: Number of the last note. (C0 = 0, C1 = 12, ...), 0 to 143 (12 octaves)

Detune: Detuning offset (-24 to 24)

Pitch: Tuning pitch (A4 = 440.0Hz), 0Hz to 96000Hz.

SummationMethod: Determines which method is used to sum the coefficients of FFT. 

   0: Minimum
   1: Maximum
   2: Sum
   3: RMS
   4: RMSSum
   5: Average
   6: Median

XAxisMode: Determines which X axis to display 

   0: Center frequency of a band, every 10 bands.
   1: Fixed frequency range
   2: Frequency of the C note of each octave
   4: C note of each octave

External links

See also

Retrieved from "https://wiki.hydrogenaud.io/index.php?title=Foobar2000:Components/Spectrum_Analyzer_(foo_vis_spectrum_analyzer)&oldid=37552"