filtQ2BW

Version 1.0.0 (1.72 KB) by Witold Waldman
Compute the bandwidth of a bandpass filter in octaves given the Q.
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Updated 13 Jul 2022

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When designing an audio bandpass filter, sometimes the desired Q (quality factor) is specified, and the bandwidth in octaves BWoct needs to be calculated.
Syntax
BWoct = filtQ2BW(Q)
filtQ2BW()
The input value of Q may be either a scalar, a row vector, or a column vector. If a vector is provided, then the output will be the appropriate vector.
Invoking filtQ2BW() with no input arguments creates an example table of output results, which can be compared to the results that were published by Bohn (1983).
Reference
Bohn, Dennis (1983). Bandpass filter design. Studio Sound, January, pages 36–37. https://worldradiohistory.com/Archive-All-Audio/Archive-Studio-Sound/80s/Studio-Sound-1983-01.pdf

Cite As

Witold Waldman (2024). filtQ2BW (https://www.mathworks.com/matlabcentral/fileexchange/114975-filtq2bw), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2022a
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes
1.0.0