diff --git a/components/script/dom/audioparam.rs b/components/script/dom/audioparam.rs
index b5bad9fcb9b..b21ee86b57b 100644
--- a/components/script/dom/audioparam.rs
+++ b/components/script/dom/audioparam.rs
@@ -19,6 +19,8 @@ pub trait AudioParamImpl: JSTraceable + MallocSizeOf {
     fn set_value_at_time(&self, value: f32, start_time: f64);
     fn ramp_to_value_at_time(&self, ramp_kind: RampKind, value: f32, end_time: f64);
     fn set_target_at_time(&self, value: f32, start_time: f64, time_constant: f32);
+    fn cancel_scheduled_values(&self, cancel_time: f64);
+    fn cancel_and_hold_at_time(&self, cancel_time: f64);
 }
 
 #[dom_struct]
@@ -118,4 +120,14 @@ impl AudioParamMethods for AudioParam {
         self.param_impl.set_target_at_time(*target, *start_time, *time_constant);
         DomRoot::from_ref(self)
     }
+
+    fn CancelScheduledValues(&self, cancel_time: Finite<f64>) -> DomRoot<AudioParam> {
+        self.param_impl.cancel_scheduled_values(*cancel_time);
+        DomRoot::from_ref(self)
+    }
+
+    fn CancelAndHoldAtTime(&self, cancel_time: Finite<f64>) -> DomRoot<AudioParam> {
+        self.param_impl.cancel_and_hold_at_time(*cancel_time);
+        DomRoot::from_ref(self)
+    }
 }
diff --git a/components/script/dom/macros.rs b/components/script/dom/macros.rs
index 1d8ea2f371d..923d0bb9873 100644
--- a/components/script/dom/macros.rs
+++ b/components/script/dom/macros.rs
@@ -651,7 +651,9 @@ macro_rules! audio_param_impl(
         }
 
         impl AudioParamImpl for $struct {
-            fn set_value(&self, _value: f32) {}
+            fn set_value(&self, value: f32) {
+                self.set_value_at_time(value, self.context.current_time());
+            }
 
             fn set_value_at_time(&self, value: f32, start_time: f64) {
                 self.context.message_node(
@@ -679,6 +681,24 @@ macro_rules! audio_param_impl(
                     )),
                 );
             }
+
+            fn cancel_scheduled_values(&self, cancel_time: f64) {
+                self.context.message_node(
+                    self.node,
+                    AudioNodeMessage::$node_type($message_type::$setter(
+                        UserAutomationEvent::CancelScheduledValues(cancel_time),
+                    )),
+                );
+            }
+
+            fn cancel_and_hold_at_time(&self, cancel_time: f64) {
+                self.context.message_node(
+                    self.node,
+                    AudioNodeMessage::$node_type($message_type::$setter(
+                        UserAutomationEvent::CancelAndHoldAtTime(cancel_time),
+                    )),
+                );
+            }
         }
     );
 );
diff --git a/components/script/dom/webidls/AudioParam.webidl b/components/script/dom/webidls/AudioParam.webidl
index 4e6c6acea04..506a0b18082 100644
--- a/components/script/dom/webidls/AudioParam.webidl
+++ b/components/script/dom/webidls/AudioParam.webidl
@@ -27,6 +27,6 @@ interface AudioParam {
 //    AudioParam setValueCurveAtTime(sequence<float> values,
 //                                   double startTime,
 //                                   double duration);
-//    AudioParam cancelScheduledValues(double cancelTime);
-//    AudioParam cancelAndHoldAtTime(double cancelTime);
+    AudioParam cancelScheduledValues(double cancelTime);
+    AudioParam cancelAndHoldAtTime(double cancelTime);
 };