fix: audioparam scheduling methods

packages/react-native-audio-api/common/cpp/audioapi/core/AudioParam.cpp

@@ -115,6 +115,10 @@ void AudioParam::exponentialRampToValueAtTime(float value, double endTime) {
   // Exponential curve function using power law
   auto calculateValue =
       [](double startTime, double endTime, float startValue, float endValue, double time) {
+        if (startValue * endValue < 0 || startValue == 0) {
+          return startValue;
+        }
+
         if (time < startTime) {
           return startValue;
         }
@@ -143,6 +147,10 @@ void AudioParam::setTargetAtTime(float target, double startTime, double timeCons
   // Exponential decay function towards target value
   auto calculateValue = [timeConstant, target](
                             double startTime, double, float startValue, float, double time) {
+    if (timeConstant == 0) {
+      return target;
+    }
+
     if (time < startTime) {
       return startValue;
     }

packages/react-native-audio-api/src/core/AudioParam.ts

@@ -56,6 +56,10 @@ export default class AudioParam {
     value: number,
     endTime: number
   ): AudioParam {
+    if (value === 0) {
+      throw new RangeError(`value must be a non-zero number: ${value}`);
+    }
+
     if (endTime <= 0) {
       throw new RangeError(
         `endTime must be a finite non-negative number: ${endTime}`