<!-- SS · part 140 -->
.getDefaults(),{convert:!0,units:"number"})}get value(){const t=this.now();return this.getValueAtTime(t)}set value(t){this.cancelScheduledValues(this.now()),this.setValueAtTime(t,this.now())}get minValue(){return Fn(this._minValue)?this._minValue:"time"===this.units||"frequency"===this.units||"normalRange"===this.units||"positive"===this.units||"transportTime"===this.units||"ticks"===this.units||"bpm"===this.units||"hertz"===this.units||"samples"===this.units?0:"audioRange"===this.units?-1:"decibels"===this.units?-1/0:this._param.minValue}get maxValue(){return Fn(this._maxValue)?this._maxValue:"normalRange"===this.units||"audioRange"===this.units?1:this._param.maxValue}_is(t,e){return this.units===e}_assertRange(t){return Fn(this.maxValue)&&Fn(this.minValue)&&Un(t,this._fromType(this.minValue),this._fromType(this.maxValue)),t}_fromType(t){return this.convert&&!this.overridden?this._is(t,"time")?this.toSeconds(t):this._is(t,"decibels")?ji(t):this._is(t,"frequency")?this.toFrequency(t):t:this.overridden?0:t}_toType(t){return this.convert&&"decibels"===this.units?Li(t):t}setValueAtTime(t,e){const s=this.toSeconds(e),n=this._fromType(t);return Bn(isFinite(n)&&isFinite(s),`Invalid argument(s) to setValueAtTime: ${JSON.stringify(t)}, ${JSON.stringify(e)}`),this._assertRange(n),this.log(this.units,"setValueAtTime",t,s),this._events.add({time:s,type:"setValueAtTime",value:n}),this._param.setValueAtTime(n,s),this}getValueAtTime(t){const e=Math.max(this.toSeconds(t),0),s=this._events.getAfter(e),n=this._events.get(e);let i=this._initialValue;if(null===n)i=this._initialValue;else if("setTargetAtTime"!==n.type||null!==s&&"setValueAtTime"!==s.type)if(null===s)i=n.value;else if("linearRampToValueAtTime"===s.type||"exponentialRampToValueAtTime"===s.type){let t=n.value;if("setTargetAtTime"===n.type){const e=this._events.getBefore(n.time);t=null===e?this._initialValue:e.value}i="linearRampToValueAtTime"===s.type?this._linearInterpolate(n.time,t,s.time,s.value,e):this._exponentialInterpolate(n.time,t,s.time,s.value,e)}else i=n.value;else{const t=this._events.getBefore(n.time);let s;s=null===t?this._initialValue:t.value,"setTargetAtTime"===n.type&&(i=this._exponentialApproach(n.time,s,n.value,n.constant,e))}return this._toType(i)}setRampPoint(t){t=this.toSeconds(t);let e=this.getValueAtTime(t);return this.cancelAndHoldAtTime(t),0===this._fromType(e)&&(e=this._toType(this._minOutput)),this.setValueAtTime(e,t),this}linearRampToValueAtTime(t,e){const s=this._fromType(t),n=this.toSeconds(e);return Bn(isFinite(s)&&isFinite(n),`Invalid argument(s) to linearRampToValueAtTime: ${JSON.stringify(t)}, ${JSON.stringify(e)}`),this._assertRange(s),this._events.add({time:n,type:"linearRampToValueAtTime",value:s}),this.log(this.units,"linearRampToValueAtTime",t,n),this._param.linearRampToValueAtTime(s,n),this}exponentialRampToValueAtTime(t,e){let s=this._fromType(t);s=yi(s,0)?this._minOutput:s,this._assertRange(s);const n=this.toSeconds(e);return Bn(isFinite(s)&&isFinite(n),`Invalid argument(s) to exponentialRampToValueAtTime: ${JSON.stringify(t)}, ${JSON.stringify(e)}`),this._events.add({time:n,type:"exponentialRampToValueAtTime",value:s}),this.log(this.units,"exponentialRampToValueAtTime",t,n),this._param.exponentialRampToValueAtTime(s,n),this}exponentialRampTo(t,e,s){return s=this.toSeconds(s),this.setRampPoint(s),this.exponentialRampToValueAtTime(t,s+this.toSeconds(e)),this}linearRampTo(t,e,s){return s=this.toSeconds(s),this.setRampPoint(s),this.linearRampToValueAtTime(t,s+this.toSeconds(e)),this}targetRampTo(t,e,s){return s=this.toSeconds(s),this.setRampPoint(s),this.exponentialApproachValueAtTime(t,s,e),this}exponentialApproachValueAtTime(t,e,s){e=this.toSeconds(e),s=this.toSeconds(s);const n=Math.log(s+1)/Math.log(200);return this.setTargetAtTime(t,e,n),this.cancelAndHoldAtTime(e+.9*s),this.linearRampToValueAtTime(t,e+s),this}setTargetAtTime(t,e,s){const n=this._fromType(t);Bn(isFinite(s)&&s>0,"timeConstant must be a number greater than 0");const i=this.toSeconds(e);return this._assertRange(n),Bn(isFinite(n)&&isFinite(i),`Invalid argument(s) to setTargetAtTime: ${JSON.stringify(t)}, ${JSON.stringify(e)}`),this._events.add({constant:s,time:i,type:"setTargetAtTime",value:n}),this.log(this.units,"setTargetAtTime",t,i,s),this._param.setTargetAtTime(n,i,s),this}setValueCurveAtTime(t,e,s,n=1){s=this.toSeconds(s),e=this.toSeconds(e);const i=this._fromType(t[0])*n;this.setValueAtTime(this._toType(i),e);const o=s/(t.length-1);for(let s=1;s<t.length;s++){const i=this._fromType(t[s])*n;this.linearRampToValueAtTime(this._toType(i),e+s*o)}return this}cancelScheduledValues(t){const e=this.toSeconds(t);return Bn(isFinite(e),`Invalid argument to cancelScheduledValues: ${JSON.stringify(t)}`),this._events.cancel(e),this._param.cancelScheduledValues(e),this.log(this.units,"cancelScheduledValues",e),this}cancelAndHoldAtTime(t){const e=this.toSeconds(t),s=this._fromType(this.getValueAtTime(e));Bn(isFinite(e),`Invalid argument to c