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set DECAY_TIME to 25ms

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Use a DECAY_TIME that envelopes half of the lowest frequency a person
can hear.
This commit is contained in:
Michael "Z" Goddard 2018-06-11 15:23:12 -04:00
parent 0059ff53e1
commit 87f400b27d
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1 changed files with 11 additions and 4 deletions
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15
src/AudioEngine.js
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@ -77,13 +77,20 @@ class AudioEngine {
}
/**
* A short duration, for use as a time constant for exponential audio parameter transitions.
* See:
* https://developer.mozilla.org/en-US/docs/Web/API/AudioParam/setTargetAtTime
* A short duration to transition audio prarameters.
*
* Used as a time constant for exponential transitions. A general value
* must be large enough that it does not cute off lower frequency, or bass,
* sounds. Human hearing lower limit is ~20Hz making a safe value 25
* milliseconds or 0.025 seconds, where half of a 20Hz wave will play along
* with the DECAY. Higher frequencies will play multiple waves during the
* same amount of time and avoid clipping.
*
* @see {@link https://developer.mozilla.org/en-US/docs/Web/API/AudioParam/setTargetAtTime}
* @const {number}
*/
get DECAY_TIME () {
return 0.001;
return 0.025;
}
/**