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ramp exponential won't go below some small value

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This commit is contained in:
Yotam Mann 2014-12-06 16:47:48 -05:00
parent bf325680a6
commit 908ae686f2
1 changed files with 3 additions and 9 deletions
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12
Tone/signal/Signal.js
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@ -109,21 +109,15 @@ define(["Tone/core/Tone", "Tone/signal/WaveShaper"], function(Tone){
/**
* Schedules an exponential continuous change in parameter value from
* the previous scheduled parameter value to the given value.
*
* NOTE: Chrome will throw an error if you try to exponentially ramp to a
* value 0 or less.
*
* @param {number} value
* @param {Tone.Time} endTime
*/
Tone.Signal.prototype.exponentialRampToValueAtTime = function(value, endTime){
value *= this._syncRatio;
try {
this._scalar.gain.exponentialRampToValueAtTime(value, this.toSeconds(endTime));
} catch(e){
//firefox won't let the signal ramp past 1, in these cases, revert to linear ramp
this._scalar.gain.linearRampToValueAtTime(value, this.toSeconds(endTime));
}
//can't go below a certain value
value = Math.max(0.00001, value);
this._scalar.gain.exponentialRampToValueAtTime(value, this.toSeconds(endTime));
};
/**