mdn · teoli2003 · Apr 12, 2022 · Apr 12, 2022 · Apr 12, 2022
@@ -18,7 +18,7 @@ This method may only be run once, to notify the user on a failed or a successful
 ## Syntax
 
 ```js
-let updateUI = BackgroundFetchUpdateUIEvent.updateUI(options);
+updateUI(options);
 ```
 
 ### Parameters

@@ -27,14 +27,14 @@ can be used to expose audio time and frequency data and create data visualizatio
 ## Syntax
 
 ```js
-var analyserNode = baseAudioContext.createAnalyser();
+createAnalyser();
 ```
 
-### Returns
+### Return value
 
 An {{domxref("AnalyserNode")}}.
 
-## Example
+## Examples
 
 The following example shows basic usage of an AudioContext to create an Analyser node,
 then use requestAnimationFrame() to collect time domain data repeatedly and draw an

@@ -24,14 +24,14 @@ filter configurable as several different common filter types.
 ## Syntax
 
 ```js
-baseAudioContext.createBiquadFilter();
+createBiquadFilter();
 ```
 
-### Returns
+### Return value
 
 A {{domxref("BiquadFilterNode")}}.
 
-## Example
+## Examples
 
 The following example shows basic usage of an AudioContext to create a Biquad filter
 node. For a complete working example, check out our [voice-change-o-matic](https://mdn.github.io/voice-change-o-matic/) demo (look

@@ -37,7 +37,7 @@ reference page.
 ## Syntax
 
 ```js
-var buffer = baseAudioContext.createBuffer(numOfChannels, length, sampleRate);
+createBuffer(numOfChannels, length, sampleRate);
 ```
 
 ### Parameters
@@ -58,7 +58,7 @@ var buffer = baseAudioContext.createBuffer(numOfChannels, length, sampleRate);
   - : The sample rate of the linear audio data in sample-frames per second. All browsers
     must support sample rates in at least the range 8,000 Hz to 96,000 Hz.
 
-### Returns
+### Return value
 
 An {{domxref("AudioBuffer")}} configured based on the specified options.
 

@@ -28,14 +28,14 @@ track.
 ## Syntax
 
 ```js
-var source = baseAudioContext.createBufferSource();
+createBufferSource();
 ```
 
-### Returns
+### Return value
 
 An {{domxref("AudioBufferSourceNode")}}.
 
-## Example
+## Examples
 
 In this example, we create a two second buffer, fill it with white noise, and then play
 it via an {{ domxref("AudioBufferSourceNode") }}. The comments should clearly explain

@@ -24,7 +24,7 @@ which combines channels from multiple audio streams into a single audio stream.
 ## Syntax
 
 ```js
-createChannelMerger(numberOfInputs)
+createChannelMerger(numberOfInputs);
 ```
 
 ### Parameters
@@ -33,11 +33,11 @@ createChannelMerger(numberOfInputs)
   - : The number of channels in the input audio streams, which the output stream will
     contain; the default is 6 if this parameter is not specified.
 
-### Returns
+### Return value
 
 A {{domxref("ChannelMergerNode")}}.
 
-## Example
+## Examples
 
 The following example shows how you could separate a stereo track (say, a piece of
 music), and process the left and right channel differently. To use them, you need to use

@@ -23,7 +23,7 @@ which is used to access the individual channels of an audio stream and process t
 ## Syntax
 
 ```js
-createChannelSplitter(numberOfOutputs)
+createChannelSplitter(numberOfOutputs);
 ```
 
 ### Parameters
@@ -32,11 +32,11 @@ createChannelSplitter(numberOfOutputs)
   - : The number of channels in the input audio stream that you want to output separately;
     the default is 6 if this parameter is not specified.
 
-### Returns
+### Return value
 
 A {{domxref("ChannelSplitterNode")}}.
 
-## Example
+## Examples
 
 The following simple example shows how you could separate a stereo track (say, a piece
 of music), and process the left and right channel differently. To use them, you need to

@@ -27,14 +27,14 @@ value.
 ## Syntax
 
 ```js
-var constantSourceNode = AudioContext.createConstantSource()
+createConstantSource();
 ```
 
 ### Parameters
 
 None.
 
-### Returns
+### Return value
 
 A {{domxref('ConstantSourceNode')}} instance.
 

@@ -25,14 +25,14 @@ Convolution](https://webaudio.github.io/web-audio-api/#background-3) for more in
 ## Syntax
 
 ```js
-baseAudioContext.createConvolver();
+createConvolver();
 ```
 
-### Returns
+### Return value
 
 A {{domxref("ConvolverNode")}}.
 
-## Example
+## Examples
 
 The following example shows basic usage of an AudioContext to create a convolver node.
 The basic premise is that you create an AudioBuffer containing a sound sample to be used

@@ -24,7 +24,7 @@ which is used to delay the incoming audio signal by a certain amount of time.
 ## Syntax
 
 ```js
-var delayNode = audioCtx.createDelay(maxDelayTime);
+createDelay(maxDelayTime);
 ```
 
 ### Parameters
@@ -33,12 +33,12 @@ var delayNode = audioCtx.createDelay(maxDelayTime);
   - : The maximum amount of time, in seconds, that the audio signal can be delayed by.
     Must be less than 180 seconds, and defaults to 1 second if not specified.
 
-### Returns
+### Return value
 
 A {{domxref("DelayNode")}}. The default {{domxref("DelayNode.delayTime")}} is 0
 seconds.
 
-## Example
+## Examples
 
 We have created a simple example that allows you to play three different samples on a
 constant loop — see [create-delay](https://chrisdavidmills.github.io/create-delay/) (you can also

@@ -31,14 +31,14 @@ help avoid clipping (distorting) of the audio output.
 ## Syntax
 
 ```js
-baseAudioCtx.createDynamicsCompressor();
+createDynamicsCompressor();
 ```
 
-### Returns
+### Return value
 
 A {{domxref("DynamicsCompressorNode")}}.
 
-## Example
+## Examples
 
 The code below demonstrates a simple usage of `createDynamicsCompressor()`
 to add compression to an audio track. For a more complete example, have a look at our [basic Compressor

@@ -27,7 +27,7 @@ overall gain (or volume) of the audio graph.
 ## Syntax
 
 ```js
-var gainNode = AudioContext.createGain();
+createGain();
 ```
 
 ### Return value
@@ -37,7 +37,7 @@ audio whose volume has been adjusted in gain (volume) to a level specified by th
 {{domxref("GainNode.gain")}} [a-rate](/en-US/docs/Web/API/AudioParam#a-rate)
 parameter.
 
-## Example
+## Examples
 
 The following example shows basic usage of an {{domxref("AudioContext")}} to create a
 `GainNode`, which is then used to mute and unmute the audio when a Mute

@@ -28,7 +28,7 @@ of filter.
 ## Syntax
 
 ```js
-var iirFilter = AudioContext.createIIRFilter(feedforward, feedback);
+createIIRFilter(feedforward, feedback);
 ```
 
 ### Parameters

@@ -24,14 +24,14 @@ waveform. It basically generates a constant tone.
 ## Syntax
 
 ```js
-var oscillatorNode = audioCtx.createOscillator();
+createOscillator();
 ```
 
-### Returns
+### Return value
 
 An {{domxref("OscillatorNode")}}.
 
-## Example
+## Examples
 
 The following example shows basic usage of an AudioContext to create an oscillator
 node. For applied examples/information, check out our [Violent Theremin demo](https://mdn.github.io/violent-theremin/) ([see

@@ -32,11 +32,11 @@ audio.
 createPanner();
 ```
 
-### Returns
+### Return value
 
 A {{domxref("PannerNode")}}.
 
-## Example
+## Examples
 
 In the following example, you can see an example of how the `createPanner()`
 method, {{domxref("AudioListener")}}  and {{domxref("PannerNode")}} would be used to

@@ -22,10 +22,11 @@ that can be used to shape the output of an {{ domxref("OscillatorNode") }}.
 ## Syntax
 
 ```js
-var wave = AudioContext.createPeriodicWave(real, imag[, constraints]);
+createPeriodicWave(real, imag);
+createPeriodicWave(real, imag, constraints);
 ```
 
-### Returns
+### Return value
 
 A {{domxref("PeriodicWave")}}.
 
@@ -50,7 +51,7 @@ otherwise an error is thrown.
 
 > **Note:** If normalized, the resulting wave will have a maximum absolute peak value of 1.
 
-## Example
+## Examples
 
 The following example illustrates simple usage of `createPeriodicWave()`, to
 create a {{domxref("PeriodicWave")}} object containing a simple sine wave.

@@ -21,7 +21,7 @@ creates a {{domxref("ScriptProcessorNode")}} used for direct audio processing.
 ## Syntax
 
 ```js
-var scriptProcessor = audioCtx.createScriptProcessor(bufferSize, numberOfInputChannels, numberOfOutputChannels);
+createScriptProcessor(bufferSize, numberOfInputChannels, numberOfOutputChannels);
 ```
 
 ### Parameters
@@ -54,11 +54,11 @@ var scriptProcessor = audioCtx.createScriptProcessor(bufferSize, numberOfInputCh
 > **Note:** It is invalid for both `numberOfInputChannels` and
 > `numberOfOutputChannels` to be zero.
 
-### Returns
+### Return value
 
 A {{domxref("ScriptProcessorNode")}}.
 
-## Example
+## Examples
 
 The following example shows basic usage of a `ScriptProcessorNode` to take a
 track loaded via {{domxref("BaseAudioContext/decodeAudioData", "AudioContext.decodeAudioData()")}}, process it, adding a bit

@@ -25,14 +25,14 @@ It positions an incoming audio stream in a stereo image using a [low-cost pannin
 ## Syntax
 
 ```js
-baseAudioContext.createStereoPanner();
+createStereoPanner();
 ```
 
-### Returns
+### Return value
 
 A {{domxref("StereoPannerNode")}}.
 
-## Example
+## Examples
 
 In our [StereoPannerNode
 example](https://mdn.github.io/webaudio-examples/stereo-panner-node/) ([see

@@ -24,14 +24,14 @@ distortion. It is used to apply distortion effects to your audio.
 ## Syntax
 
 ```js
-baseAudioCtx.createWaveShaper();
+createWaveShaper();
 ```
 
-### Returns
+### Return value
 
 A {{domxref("WaveShaperNode")}}.
 
-## Example
+## Examples
 
 The following example shows basic usage of an AudioContext to create a wave shaper
 node. For applied examples/information, check out our [Voice-change-O-matic](https://mdn.github.io/voice-change-o-matic/) [demo](https://mdn.github.io/voice-change-o-matic/) ([see

@@ -17,18 +17,18 @@ install prompt at a time of their own choosing.
 ## Syntax
 
 ```js
-BeforeInstallPromptEvent.prompt()
+prompt();
 ```
 
 ### Parameters
 
 None.
 
-### Returns
+### Return value
 
 An empty {{jsxref("Promise")}}.
 
-## Example
+## Examples
 
 ```js
 var isTooSoon = true;

@@ -26,7 +26,7 @@ must be the same size as the array of input frequency values
 ## Syntax
 
 ```js
-BiquadFilterNode.getFrequencyResponse(frequencyArray, magResponseOutput, phaseResponseOutput);
+getFrequencyResponse(frequencyArray, magResponseOutput, phaseResponseOutput);
 ```
 
 ### Parameters
@@ -58,7 +58,7 @@ BiquadFilterNode.getFrequencyResponse(frequencyArray, magResponseOutput, phaseRe
 - `InvalidAccessError`
   - : The three arrays provided are not all of the same length.
 
-## Example
+## Examples
 
 In the following example we are using a biquad filter on a media stream (for the full
 demo, see our [stream-source-buffer
@@ -95,7 +95,7 @@ var freqResponseOutput = document.querySelector('.freq-response-output');
 
 Finally, after creating our biquad filter, we use `getFrequencyResponse()`
 to generate the response data and put it in our arrays, then loop through each data set
-and output  them in a human-readable list at the bottom of the page:
+and output them in a human-readable list at the bottom of the page:
 
 ```js
 var biquadFilter = audioCtx.createBiquadFilter();