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Web Audio API - Web APIs
once the sound has been sufficiently processed for the intended effect, it can be linked to the input of a destination (audiocontext.destination), which sends the sound to the speakers or headphones.
... a simple, typical workflow for web audio would look something like this: create audio context inside the context, create sources — such as <audio>, oscillator, stream create effects nodes, such as reverb, biquad filter, panner, compressor choose final destination of audio, for example your system speakers connect the sources up to the effects, and the effects to the destination.
... audiodestinationnode the audiodestinationnode interface represents the end destination of an audio source in a given context — usually the speakers of your device.
... offline/background audio processing it is possible to process/render an audio graph very quickly in the background — rendering it to an audiobuffer rather than to the device's speakers — with the following.
Digital audio concepts - Web media technologies
for instance, in stereo sound, there are two audio sources: one speaker on the left, and one on the right.
...the sound for the left and right main channels, as well as all of your surround sound speakers (center, left and right rear, left and right sides, ceiling channels, and so forth) are all standard audio channels.
... special low frequency enhancement (lfe) channels provide the signal for special speakers designed to produce the low frequency sounds and vibration to create a visceral sensation when listening to the audio.
...you can even adjust the audio bandwidth to factor in the pitch of the individual speaker's voice.
AudioDestinationNode - Web APIs
the audiodestinationnode interface represents the end destination of an audio graph in a given context — usually the speakers of your device.
... number of inputs 1 number of outputs 0 channel count mode "explicit" channel count 2 channel interpretation "speakers" properties inherits properties from its parent, audionode.
...their speakers), so you can get it hooked up inside an audio graph using only a few lines of code: var audioctx = new audiocontext(); var source = audioctx.createmediaelementsource(mymediaelement); source.connect(gainnode); gainnode.connect(audioctx.destination); to see a more complete implementation, check out one of our mdn web audio examples, such as voice-change-o-matic or violent theremin.
AudioNode - Web APIs
WebAPIAudioNode
on the other hand, a destination node has no outputs; instead, all its inputs are directly played back on the speakers (or whatever audio output device the audio context uses).
...for example, if your graph has a latency of 500ms, when the source node plays a sound, it will take half a second until that sound can be heard on your speakers (or even longer because of latency in the underlying audio device).
... the possible values are "speakers" or "discrete".
Basic concepts behind Web Audio API - Web APIs
choose the final destination for the audio, such as the user's computer speakers.
...this can be somewhat controlled by setting the audionode.channelinterpretation property to speakers or discrete: interpretation input channels output channels mixing rules speakers 1 (mono) 2 (stereo) up-mix from mono to stereo.
... the specification explicitly allows the future definition of new speaker layouts.
Web audio spatialization basics - Web APIs
when we move the boombox, the sound it produces changes accordingly, panning as it moves to the left or right of the room, or becoming quieter as it is moved away from the user or is rotated so the speakers are facing away from them, etc.
...our boombox speakers will have smaller cones, which we can define.
...the sound direction is coming from the boombox speaker at the front, so when we rotate it, we can alter the sound's direction — i.e.
Cognitive accessibility - Accessibility
non-native language speakers may also struggle with these terms.
...this means it should be easily understood by a native english speaker aged 16 to 17.
... providing guidance on how to pronounce words helps many different kinds of people, including those who prefer to read aloud, non-native language speakers, and people who may unfamiliar with the meaning of a term in context.
Introduction to web APIs - Learn web development
the device on your computer that will actually output it — usually your speakers or headphones.
...your speakers).
AudioNode.channelInterpretation - Web APIs
this can be somewhat controlled by setting the audionode.channelinterpretation property to speakers or discrete: interpretation input channels output channels mixing rules speakers 1 (mono) 2 (stereo) up-mix from mono to stereo.
... the specification explicitly allows the future definition of new speaker layouts.
Index - Web APIs
WebAPIIndex
this can be somewhat controlled by setting the audionode.channelinterpretation property to speakers or discrete: 160 audionode.connect() api, audio, audionode, media, method, reference, web audio api, connect if the destination is a node, connect() returns a reference to the destination audionode object, allowing you to chain multiple connect() calls.
... 2320 mediadevices: devicechange event api, audio, media, media capture and streams api, media streams api, mediadevices, reference, video, events a devicechange event is sent to a mediadevices instance whenever a media device such as a camera, microphone, or speaker is connected to or removed from the system.
StereoPannerNode - Web APIs
number of inputs 1 number of outputs 1 channel count mode "clamped-max" channel count 2 channel interpretation "speakers" constructor stereopannernode() creates a new instance of a stereopannernode object.
... moving the slider left and right while the music is playing pans the music across to the left and right speakers of the output, respectively.
Fundamentals of WebXR - Web APIs
these headsets may include integrated speakers and microphone, and/or connectors to attach external ones.
...speakers placed around the chamber provide immersive sound as well.
ARIA: switch role - Accessibility
<button type="button" role="switch" aria-checked="true" id="speakerpower" class="switch"> <span>off</span> <span>on</span> </button> <label for="speakerpower" class="switch">speaker power</label> description the aria switch role is identical to the checkbox role, except instead of being "checked" or "unchecked", it is either "on" and "off." like the checkbox role, the aria-checked attribute is required.
... <button role="switch" aria-checked="true" id="speakerpower" class="switch"> <span>off</span> <span>on</span> </button> <label for="speakerpower" class="switch">speaker power</label> javascript this javascript code defines and applies a function to handle click events on switch widgets.
Content-Language - HTTP
for example, if "content-language: de-de" is set, it says that the document is intended for german language speakers (however, it doesn't indicate the document is written in german.
... for example, it might be written in english as part of a language course for german speakers.
Web audio codec guide - Web media technologies
maximum number of channels the audio delivered to each speaker in a sound system is provided by one audio channel in a stream.
... in addition to providing audio for specific speakers in a sound system, some codecs may allow audio channels to be used to provide alternative audio, such as vocals in different languages or descriptive audio for visually impaired people.
Index - Archive of obsolete content
stereo output produce a lateral sound stage, while binaural headphones and multi-speaker setups allow for a fully three-dimensional stage.
XUL accessibility guidelines - Archive of obsolete content
transcripts should identify the speakers and describe other relevant sounds such as laughing or singing.
azimuth - Archive of obsolete content
ArchiveWebCSSazimuth
stereo output produce a lateral sound stage, while binaural headphones and multi-speaker setups allow for a fully three-dimensional stage.
CSS - Archive of obsolete content
ArchiveWebCSS
stereo output produce a lateral sound stage, while binaural headphones and multi-speaker setups allow for a fully three-dimensional stage.display-insidethe display-inside css property specifies the inner display type of the box generated by an element, dictating how its contents lay out inside the box.display-outsidethe display-outside css property specifies the outer display type of the box generated by an element, dictating how the element participates in its parent formatting cont...
How can we design for all types of users? - Learn web development
some users have hearing challenges, lack functioning speakers, or work in a noisy environment (like on the train).
Define terms with HTML - Learn web development
description lists are not suitable for marking up dialogue, because conversation does not directly describe the speakers.
Internationalized Domain Names (IDN) Support in Mozilla Browsers
speakers of these languages were not able to use familiar names in their native languages as part of internet domain/host names.
Localization content best practices
as a native english speaker, you might find it natural to use delete-cookie = delete cookie delete-cookies = delete cookies in firefox this should be # localization note (delete-cookies): semi-colon list of plural forms.
Localizing extension metadata on addons.mozilla.org
amazon mechanical turk this is not free, but for a very modest amount of money you can get your amo page quickly translated by native speakers.
Localization Use Cases
needless to say, this ends up being long and often unnaturally-sounding to the native speakers.
nsIRadioInterfaceLayer
speakerenabled bool constants call state constants constant value description call_state_unknown 0 call_state_dialing 1 call_state_alerting 2 call_state_busy 3 call_state_connecting 4 call_state_connected 5 call_state_holding 6 call_state_held 7 call_state_resuming 8 call_state_disconnecting 9 call_state_disconnected 10 call_state_incoming 11 datac...
Web Audio Editor - Firefox Developer Tools
within that context they then construct a number of audio nodes, including: nodes providing the audio source, such as an oscillator or a data buffer source nodes performing transformations such as delay and gain nodes representing the destination of the audio stream, such as the speakers each node has zero or more audioparam properties that configure its operation.
AnalyserNode - Web APIs
number of inputs 1 number of outputs 1 (but may be left unconnected) channel count mode "max" channel count 2 channel interpretation "speakers" inheritance this interface inherits from the following parent interfaces: <div id="interfacediagram" style="display: inline-block; position: relative; width: 100%; padding-bottom: 11.666666666666666%; vertical-align: middle; overflow: hidden;"><svg style="display: inline-block; position: absolute; top: 0; left: 0;" viewbox="-50 0 600 70" preserveaspectratio="xminymin meet"><a xlink...
AudioNode.connect() - Web APIs
WebAPIAudioNodeconnect
for example, you might send the audio from a mediaelementaudiosourcenode—that is, the audio from an html5 media element such as <audio>—through a band pass filter implemented using a biquadfilternode to reduce noise before then sending the audio along to the speakers.
AudioNodeOptions - Web APIs
the possible values are "speakers" or "discrete".
BaseAudioContext.createStereoPanner() - Web APIs
moving the slider left and right while the music is playing pans the music across to the left and right speakers of the output, respectively.
BaseAudioContext.destination - Web APIs
it often represents an actual audio-rendering device such as your device's speakers.
BiquadFilterNode - Web APIs
number of inputs 1 number of outputs 1 channel count mode "max" channel count 2 (not used in the default count mode) channel interpretation "speakers" constructor biquadfilternode() creates a new instance of a biquadfilternode object.
ChannelMergerNode - Web APIs
number of outputs 1 channel count mode "max" channel count 2 (not used in the default count mode) channel interpretation "speakers" constructor channelmergernode() creates a new channelmergernode object instance.
ConstantSourceNode - Web APIs
finally, the two gain nodes are connected to the audio destination (typically speakers or headphones).
ConvolverNode - Web APIs
number of inputs 1 number of outputs 1 channel count mode "clamped-max" channel count 1, 2, or 4 channel interpretation "speakers" constructor convolvernode() creates a new convolvernode object instance.
DelayNode - Web APIs
WebAPIDelayNode
number of inputs 1 number of outputs 1 channel count mode "max" channel count 2 (not used in the default count mode) channel interpretation "speakers" constructor delaynode() creates a new instance of an delaynode object instance.
DynamicsCompressorNode - Web APIs
number of inputs 1 number of outputs 1 channel count mode "clamped-max" channel count 2 channel interpretation "speakers" constructor dynamicscompressornode() creates a new instance of an dynamicscompressornode object.
GainNode - Web APIs
WebAPIGainNode
number of inputs 1 number of outputs 1 channel count mode "max" channel count 2 (not used in the default count mode) channel interpretation "speakers" constructor gainnode() creates a new instance of a gainnode object.
msAudioDeviceType - Web APIs
syntax <audio src="sound.mp3" msaudiodevicetype="communications" /> by default, audio on your system will output to your default speakers and be considered a foreground element, meaning that the audio will play only when the element is active in the app.
IIRFilterNode - Web APIs
number of inputs 1 number of outputs 1 channel count mode "max" channel count same as on the input channel interpretation "speakers" typically, it's best to use the biquadfilternode interface to implement higher-order filters.
MediaDevices: devicechange event - Web APIs
a devicechange event is sent to a mediadevices instance whenever a media device such as a camera, microphone, or speaker is connected to or removed from the system.
MediaStreamAudioDestinationNode - Web APIs
number of inputs 1 number of outputs 0 channel count 2 channel count mode "explicit" channel count interpretation "speakers" constructor mediastreamaudiodestinationnode.mediastreamaudiodestinationnode() creates a new mediastreamaudiodestinationnode object instance.
MediaStreamTrack.onmute - Web APIs
example in this example, an onmute handler is established to set the content html of an element to display the "muted speaker" emoji.
MediaStreamTrack.onunmute - Web APIs
example this example creates an unmute event handler which changes the state of a visual indicator to display the emoji character representing a "speaker" icon.
Recording a media element - Web APIs
note that the autoplay attribute is used so that as soon as the stream starts to arrive from the camera, it immediately gets displayed, and the muted attribute is specified to ensure that the sound from the user's microphone isn't output to their speakers, causing an ugly feedback loop.
MediaTrackConstraints.groupId - Web APIs
for example, the microphone and speaker on the same headset would share a group id.
MediaTrackSettings.echoCancellation - Web APIs
for example, it might apply a filter that negates the sound being produced on the speakers from being included in the input track generated from the microphone.
MediaTrackSettings.groupId - Web APIs
for example, a headset has two devices on it: a microphone which can serve as a source for audio tracks and a speaker which can serve as an output for audio.
MediaTrackSettings - Web APIs
for instance, the audio input and output devices for the speaker and microphone built into a phone would share the same group id, since they're part of the same physical device.
Media Capture and Streams API (Media Stream) - Web APIs
the channel represents the smallest unit of a media stream, such as an audio signal associated with a given speaker, like left or right in a stereo audio track.
OscillatorNode - Web APIs
its basic property defaults (see audionode for definitions) are: number of inputs 0 number of outputs 1 channel count mode max channel count 2 (not used in the default count mode) channel interpretation speakers constructor oscillatornode() creates a new instance of an oscillatornode object, optionally providing an object specifying default values for the node's properties.
PannerNode - Web APIs
number of inputs 1 number of outputs 1 channel count mode "clamped-max" channel count 2 channel interpretation "speakers" constructor pannernode.pannernode creates a new pannernode object instance.
ScriptProcessorNode - Web APIs
number of inputs 1 number of outputs 1 channel count mode "max" channel count 2 (not used in the default count mode) channel interpretation "speakers" properties inherits properties from its parent, audionode.
SpeechSynthesisErrorEvent.error - Web APIs
audio-busy the operation couldn't be completed at this time because the user-agent couldn't access the audio output device (for example, the user may need to correct this by closing another application.) audio-hardware the operation couldn't be completed at this time because the user-agent couldn't identify an audio output device (for example, the user may need to connect a speaker or configure system settings.) network the operation couldn't be completed at this time because some required network communication failed.
StereoPannerNode.pan - Web APIs
moving the slider left and right while the music is playing pans the music across to the left and right speakers of the output, respectively.
WaveShaperNode - Web APIs
number of inputs 1 number of outputs 1 channel count mode "max" channel count 2 (not used in the default count mode) channel interpretation "speakers" constructor waveshapernode() creates a new instance of an waveshapernode object.
Advanced techniques: Creating and sequencing audio - Web APIs
when outputting sound to a file or speakers we need to have a number to represent 0db full scale — the numerical limit of the fixed point media or dac.
Controlling multiple parameters with ConstantSourceNode - Web APIs
finally, we connect all the gain nodes to the audiocontext's destination, so that any sound delivered to the gain nodes will reach the output, whether that output be speakers, headphones, a recording stream, or any other destination type.
Background audio processing using AudioWorklet - Web APIs
fundamentally, the audio for a single audio channel (such as the left speaker or the subwoofer, for example) is represented as a float32array whose values are the individual audio samples.
Using the Web Audio API - Web APIs
there's a stereopannernode node, which changes the balance of the sound between the left and right speakers, if the user has stereo capabilities.
Using the Web Speech API - Web APIs
the recognition successfully — the speechrecognitionerror.error property contains the actual error returned: recognition.onerror = function(event) { diagnostic.textcontent = 'error occurred in recognition: ' + event.error; } speech synthesis speech synthesis (aka text-to-speech, or tts) involves receiving synthesising text contained within an app to speech, and playing it out of a device's speaker or audio output connection.
Event reference
devicechange event media capture and streams a media device such as a camera, microphone, or speaker is connected or removed from the system.
<bgsound>: The Background Sound element (obsolete) - HTML: Hypertext Markup Language
WebHTMLElementbgsound
attributes balance this attribute defines a number between -10,000 and +10,000 that determines how the volume will be divided between the speakers.
HTTP Index - HTTP
WebHTTPIndex
143 feature-policy: speaker audio, directive, feature-policy, http, reference, speaker the http feature-policy header speaker directive controls whether the current document is allowed to play audio via any methods.
Intl.Collator.supportedLocalesOf() - JavaScript
note the specification of the "lookup" algorithm here — a "best fit" matcher might decide that indonesian is an adequate match for balinese since most balinese speakers also understand indonesian, and therefore return the balinese language tag as well.
Intl.DateTimeFormat.supportedLocalesOf() - JavaScript
note the specification of the "lookup" algorithm here — a "best fit" matcher might decide that indonesian is an adequate match for balinese since most balinese speakers also understand indonesian, and therefore return the balinese language tag as well.
Intl.DisplayNames.supportedLocalesOf() - JavaScript
note the specification of the "lookup" algorithm here — a "best fit" matcher might decide that indonesian is an adequate match for balinese since most balinese speakers also understand indonesian, and therefore return the balinese language tag as well.
Intl.ListFormat.supportedLocalesOf() - JavaScript
note the specification of the "lookup" algorithm here — a "best fit" matcher might decide that indonesian is an adequate match for balinese since most balinese speakers also understand indonesian, and therefore return the balinese language tag as well.
Intl.NumberFormat.supportedLocalesOf() - JavaScript
note the specification of the "lookup" algorithm here — a "best fit" matcher might decide that indonesian is an adequate match for balinese since most balinese speakers also understand indonesian, and therefore return the balinese language tag as well.
Intl.PluralRules.supportedLocalesOf() - JavaScript
note the specification of the lookup algorithm here — a best fit matcher might decide that indonesian is an adequate match for balinese since most balinese speakers also understand indonesian, and therefore return the balinese language tag as well.
Intl.RelativeTimeFormat.supportedLocalesOf() - JavaScript
note the specification of the "lookup" algorithm here — a "best fit" matcher might decide that indonesian is an adequate match for balinese since most balinese speakers also understand indonesian, and therefore return the balinese language tag as well.