ISO3382 Impulse Method
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DescriptionThe ISO3382 Impulse Method
block determines the reverberation time based on calculations from ISO 3382-2:2008
Measurement of room acoustic parameters โ Part 2: Reverberation time in ordinary rooms.
The reverberation time is calculated based on the impulse method where an impulse e.g a clap, balloon, gun is used, or an impulse generated using a sine sweep is used. The impulse is converted to a decay curve where a linear fit is found and the reverberation time T60, T30, or T20 is calculated.
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InputImpulse [P,pos1]
is the impulse response that is M
samples long, in a single position repeated 1
to N
times.
Multiple inputs will be ensemble average together.
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OutputReverberation times
is the calculated reverberation times in F
bands. Default one band pr octave from 100 Hz to 4000 Hz.
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AttributesAttribute | Value |
---|---|
Name | ISO3382ImpulseMethod |
Mode | T30 |
Bands pr. octave | โ 1 |
Start frequency | โ 100 |
Stop frequency | โ 4000 |
Inputs | 2 |
Values with โ can receive external input.
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NameName specifies the name of the block.
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ModeMode specifies which type of reverberation time you want to calculate. You can choose between T60
, T30
, or T20
.
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Bands pr. octaveBands pr. octave species the number of bands you want to output pr octave.
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Start frequencyStart frequency specifies the frequency which should be in the first band.
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Stop frequencyStop frequency specifies the frequency which should be in the last band.
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InputsInputs specifies the number of inputs the block requires. A single measurement position is needed. As inputs is increases you increase the number of measurement positions that are used.