This version (18 May 2021 08:51) was approved by Nikhin Shetty.

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The Reverb algorithm simulates the natural reverberation of an echoic space, such as a performance hall, and mixes it back into the original signal. Technically, reverberation is the total sound-field remaining in an enclosed space after initial sources are not active.

Targets Supported

Name ADSP-214xx ADSP-215xx/SC5xx ADAU145x/146x
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Reverb B B S



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LeftInputAudioInput Channel0
RightInputAudioInput Channel1


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LeftReverbOutputAudioOutput channel0
RightReverbOutputAudioOutput channel1

Configurable Parameters

GUI Parameter Default Value Range Function Description
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Reverb TimeMediumTime ShortTime to Very LongTime These radio buttons let you control the Reverb Time settings, short to long. The Reverb time is the amount of time it takes for the reverberations to decay. (Technically this is specified by measuring how long it takes the signal SPL [sound-pressure level] to decay 60dB, to one-millionth its original value.)
HF DampingMedium Bright to DullThese radio buttons let you control the HF Damping settings, bright to dim. HF damping refers to the brightness of the reverb reflections.
Bass Reverb GainLowHigh to LowThese radio buttons let you control the Bass Reverb Gain settings, high to low. Bass reverb refers to the level and richness of the LF reflections.

DSP Parameters

Parameter Name Description ADSP-214xx/SC5xx/215xx ADAU145x/146x
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LoopGain/loop_gainReverb time to take reverberations to decayFloat8.24 Format
Dif_cos/dif_cosFloat8.24 Format
Dif_sin/dif_sinFloat8.24 Format
AP/apFloat8.24 Format
C707/c707Float8.24 Format
LP/lpBrightness of the reverb reflectionsFloat8.24 Format
BassLP/bass_lpFloat8.24 Format
BassGain/bass_gain Bass Reverb Gain valueFloat8.24 Format
FilterTapNumber of Filter tapsFloatNA
Filter/coeffsFilter coefficientsFloat8.24 Format
loop_gain_halfNA8.24 Format
tscaleNA8.24 Format
resources/tools-software/sigmastudiov2/modules/adialgorithms/reverb.txt · Last modified: 11 May 2021 08:16 by John Joseph