Octave Filter
Octave-band and fractional octave-band filter
Libraries:
Audio Toolbox /
Filters
Description
The Octave Filter block performs octave-band or fractional octave-band filtering independently across each input channel. An octave-band is a frequency band where the highest frequency is twice the lowest frequency. Octave-band and fractional octave-band filters are commonly used to mimic how humans perceive loudness. Octave filters are best understood when viewed on a logarithmic scale, which models how the human ear weights the spectrum.
Examples
Ports
Input
Output
Parameters
Block Characteristics
Data Types |
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Direct Feedthrough |
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Multidimensional Signals |
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Variable-Size Signals |
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Zero-Crossing Detection |
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More About
Algorithms
References
[1]
, Sophocles J. Introduction to Signal Processing. Englewood Cliffs, NJ: Prentice Hall, 2010.[2] Acoustical Society of America. American National Standard Specification for Octave-Band and Fractional-Octave-Band Analog and Digital Filters: ANSI S1.11-2004. Melville, NY: Acoustical Society of America, 2009.
Extended Capabilities
Version History
Introduced in R2016b
See Also
octaveFilter
| weightingFilter
| Weighting Filter | Octave Filter
Bank