isStandardCompliant

Verify filter design is IEC 61672-1:2002 compliant

Syntax

complianceStatus = isStandardCompliant(weightFilt,classType)

complianceStatus = isStandardCompliant(___,freqRange)

Description

complianceStatus = isStandardCompliant(weightFilt,classType) returns a logical scalar, complianceStatus, indicating whether the weightFilt filter design is compliant with the minimum and maximum attenuation specifications for the classType design specified in IEC 61672-1:2002. You can check compliance for A-weighting and C-weighting filters only.

complianceStatus = isStandardCompliant(___,freqRange) specifies the range of frequencies checked for compliance.

Examples

Verify Class 1 Standard Compliance

Create an object of the weightingFilter System object™. Call isStandardCompliant, specifying the compliance class type to check as the second argument.

weightFilt = weightingFilter;
complianceStatus = isStandardCompliant(weightFilt,'class 1')

complianceStatus = logical
   1

Specify Frequency Range Checked for Compliance

Create an object of the weightingFilter System object™. Check the 'class 2' compliance status of the filter design over a specified frequency range.

weightFilt = weightingFilter;
isStandardCompliant(weightFilt,'class 2',[120,2000])

ans = logical
   1

Input Arguments

weightFilt — Object of weightingFilter

object

Object of the weightingFilter System object™.

classType — Compliance class type

'class 1' | 'class 2'

Compliance class type to verify, specified as 'class 1 or 'class 2'.

Data Types: char

freqRange — Frequency range checked for compliance (Hz)

[minFreq,maxFreq] | two-element vector of increasing values

Specify the frequency range, in Hz, checked for compliance as a two-element vector of increasing values: [minFreq,maxFreq].

Data Types: single | double

Output Arguments

complianceStatus — Compliance status of filter design

scalar

Compliance status of filter design, returned as a logical scalar. The compliance status indicates whether the weightFilt filter design is compliant with the minimum and maximum attenuation specifications for the class type design specified by IEC 61672-1:2002 standard. Compliance can only be checked for A-weighting and C-weighting filters.

Data Types: logical

Note

The pole-zero values defined in the ANSI S1.42-2001 standard are used for designing the A-weighted and C-weighted filters. The pole-zero values are based on analog filters, so the design can break compliance for lower sample rates.

Version History

Introduced in R2016b