info

Get filter information

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Syntax

infoStruct = info(obj)

Description

infoStruct = info(obj) returns a structure, infoStruct, containing information about obj.

example

Examples

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Open Live Script

Create a graphicEQ System object™. Call info to return a structure containing standards-based center, edge, and preferred frequencies.

equalizer = graphicEQ;
info(equalizer)
ans = struct with fields:
       CenterFrequencies: [31.6228 63.0957 125.8925 251.1886 501.1872 1000 1.9953e+03 3.9811e+03 7.9433e+03 1.5849e+04]
         EdgeFrequencies: [22.3872 44.6684 89.1251 177.8279 354.8134 707.9458 1.4125e+03 2.8184e+03 5.6234e+03 1.1220e+04 22050]
    PreferredFrequencies: [31.5000 63 125 250 500 1000 2000 4000 8000 16000]
Open Live Script

Create a default octaveFilterBank. Call info to return a struct containing information about the octave filter bank.

octFiltBank = octaveFilterBank;

infoStruct = info(octFiltBank)
infoStruct = struct with fields:
      CenterFrequencies: [31.6228 63.0957 125.8925 251.1886 501.1872 1000 1.9953e+03 3.9811e+03 7.9433e+03 1.5849e+04]
    BandedgeFrequencies: [22.3872 44.6684 89.1251 177.8279 354.8134 707.9458 1.4125e+03 2.8184e+03 5.6234e+03 1.1220e+04 22050]
            GroupDelays: [630.0160 315.7551 158.2517 79.3121 39.7471 19.9144 9.9678 4.9661 2.3963 0.5088]
Open Live Script

Create a default gammatoneFilterBank. Call info to return a struct containing information about the octave filter bank.

gammaFiltBank = gammatoneFilterBank;

infoStruct = info(gammaFiltBank)
infoStruct = struct with fields:
    CenterFrequencies: [50.0000 82.1776 118.0670 158.0966 202.7439 252.5416 308.0839 370.0333 439.1291 516.1956 602.1523 698.0247 804.9568 924.2243 1.0573e+03 1.2056e+03 1.3711e+03 1.5557e+03 1.7616e+03 1.9912e+03 2.2473e+03 2.5329e+03 … ] (1×32 double)
           Bandwidths: [30.6688 34.2080 38.1555 42.5583 47.4691 52.9463 59.0554 65.8692 73.4690 81.9456 91.3999 101.9449 113.7064 126.8246 141.4561 157.7754 175.9773 196.2789 218.9225 244.1782 272.3473 303.7659 338.8089 377.8944 421.4887 … ] (1×32 double)
          GroupDelays: [330.1033 295.5650 264.8688 237.2999 212.5619 190.3751 170.4802 152.6421 136.6488 122.3099 109.4544 97.9288 87.5958 78.3320 70.0268 62.5810 55.9059 49.9217 44.5571 39.7479 35.4368 31.5723 28.1083 25.0034 22.2207 … ] (1×32 double)

Input Arguments

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Object to get information from, specified as an object of gammatoneFilterBank, octaveFilterBank, or graphicEQ.

Output Arguments

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Struct containing information about the input obj.

Version History

Introduced in R2017b

See Also

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