Api audio

Author: e | 2025-04-24

Windows Audio Session API (WASAPI). Clients use this API to create and manage audio streams to and from audio endpoint devices. DeviceTopology API. Clients use this API Windows Audio Session API (WASAPI). Clients use this API to create and manage audio streams to and from audio endpoint devices. DeviceTopology API. Clients use this API

Working with the Web Audio API. The Web Audio API is a

Video With WebGLExploring the web audio api with d3Getting Started with Web Audio API14 essential JavaScript audio libraries for web developersLearning Web Audio APIFun with Web Audio APIThe Audio Processing Dog HouseWeb Audio SchoolAudio visualisation with the web audio apiMake Your Browser DanceAudio Visualization with Web Audio and Three.jsApplying Web Audio API with the HTML5 Canvas Element - Part IApplying Web Audio API with the HTML5 Canvas Element - Part IIReal-time analysis of streaming audio data with Web Audio APISyncing CSS Animations with HTML5 AudioJavascript Systems Music - Learning Web Audio by Recreating The Works of Steve Reich and Brian EnoCreative Audio VisualizersRecreating legendary 8-bit games music with Web Audio APIVisualizing sound in Go with SDLVideosMatt McKegg: I Play The JavaScript - JSConf.Asia 2015Chris Lowis: A Brief History of Synthesis with the Web Audio APIIntroducing the Web Audio APICorkDev.IO - HTML 5 Web Audio APISteve Kinney: Building a musical instrument with the Web Audio API | JSConf US 2015Making the Web Rock: The Web Audio APIJordan Santell: Signal Processing with the Web Audio API - JSConf2014Making waves using the Web Audio APIStuart Memo: JavaScript is the new Punk RockJan Krutisch: JavaScript Patterns For Contemporary Dance Music -- JSConf EU 2013Charlie Roberts: Gibbering at Algoraves - JS in Live Audiovisual Performances - JSConf.Asia 2014Lauren McCarthy: Learning while making p5jsInteractive Music with Tone.jsWeb Audio API vs Native: Closing the GapBRAID: A Web Audio Instrument Builder with Embedded Code BlocksWeb Audio ToolsHTML5DevConf: Jordan Santell, "Browser Dance Party: Visualizing Audio with the Web Audio API"Praveen Kumar - MIDI.jsMathieu 'p01' Henri: Making Realtime Audio-Visuals - JSConf.Asia 2015Paul Adenot: Elements of Dance Music - JSConf.Asia 20158-bit Music TheoryContributingYour contributions are always welcome! Click here to read the guidelines.AuthorsWillian JustenLuis HenriqueMárcio RibeiroLicenseTo the extent possible under law, Willian Justen has waived all copyright and related or neighboring rights to this work. Working with the Web Audio APIVarious simple Web Audio API examplesThey demonstrate almost all audio nodes and other interfaces of the Web Audio API with short, working examples. The aim of these tutorials is to give very short but still fully functional examples for those trying to learn the API but not spend a long amount of time dissecting larger code samples, or understanding code snippets without their context. The examples are roughly ordered sequentially to cover the simplest Hello World to nodes that use more audio cor Web Audio programming concepts.Code examples are organised into 19 sections, corresponding to the 19 chapters in the book 'Working with the Web Audio API'.Introducing the Web Audio API - A simple Hello World, generating sound with the Web Audio API, and building up to show more functionalityOscillators - demonstrating the OscillatorNode and PeriodicWaveAudio Buffer sources - showing the AudioBufferSourceNode and BufferSource, with examples on creating buffered noise, pausing playback, playing audio backwards...The Constant Source Node - all about the ConstantSourceNode, with examples for grouping multitrack audio, DC offsets and another way to generate square wavesScheduling and setting parameters - showcasing all the parameter scheduling methods (SetValueAtTime, SetValueCure ...) with examples on crossfading, beep sounds, sinusoidal modeling of bell sounds and moreConnecting Audio Parameters and Modulation - explaining how to connect to audio parameters, and other types of connections, illustrated with AM and FM synthesis examplesAnalysis and Visualization - in-depth discussion of the Analyser node, with an example analysing and visualizing a PeriodicWave

Web Audio API: Using Web Audio API - Web APIs - W3cubDocs

The Web Audio API is a powerful tool for creating and controlling audio on the web. Whether you're developing interactive web applications, games, or any other project that requires dynamic sound generation, the Web Audio API provides a comprehensive suite of functionalities that allow detailed control over audio properties.Getting Started with the Web Audio APITo begin working with the Web Audio API, you need to initialize an AudioContext. This interface is the heart of the API and handles the creation and processing of audio.// Initialize audio contextlet audioCtx = new (window.AudioContext || window.webkitAudioContext)();The AudioContext acts as a container for managing and playing all sounds. It takes care of resources, codecs, sample formats, and other audio-related configurations automatically.Creating an Oscillator NodeAn Oscillator Node is one of the simplest audio nodes and a good starting point for generating sound. This node outputs a constant waveform at a specified frequency.// Create an oscillator nodelet oscillator = audioCtx.createOscillator();// Set the oscillator frequencyoscillator.frequency.setValueAtTime(440, audioCtx.currentTime); // 440 Hz is the 'A' note// Set the wave typeoscillator.type = 'sine'; // Other options: 'square', 'sawtooth', 'triangle'In this code, oscillator.type specifies the type of waveform, and oscillator.frequency sets the number of cycles per second.Connecting the NodesTo output a sound, the oscillator node needs to be connected to the destination property of the AudioContext, which typically represents your speakers or headphones.// Connect the oscillator to the audio context's destinationoscillator.connect(audioCtx.destination);This connection sends the oscillator's output to your speakers through the audio context pipeline.Starting and Stopping the SoundYou can play the sound by starting the oscillator and stop it by invoking the stop method.// Start the oscillatoroscillator.start();// Stop the sound after 2 secondsoscillator.stop(audioCtx.currentTime + 2);This example lets the sound play for two seconds and then stops. Adjusting the time parameter allows you to control the duration.Advanced Sound ManipulationThe Web Audio API doesn't stop at simple oscillator waveforms. You can modify audio with various nodes like gain nodes, filter nodes, and more. For instance, a GainNode allows for volume control:// Create a gain nodelet gainNode = audioCtx.createGain();// Connect the oscillator to the gain node and the gain node to the destinationoscillator.connect(gainNode);gainNode.connect(audioCtx.destination);// Set the gain (volume) over timegainNode.gain.setValueAtTime(0.5, audioCtx.currentTime); // Set volume to 50%The above code demonstrates a simple chain where the audio signal from the oscillator is first fed into a GainNode before reaching the audio context destination, allowing you to adjust the volume.The Web Audio API also supports effects and spatial sounds, making it suitable for more complex applications such as music composition software or immersive web games.ConclusionWith the Web Audio API, JavaScript developers can generate, process, and control audio in a highly flexible way. From basic oscillator-generated tones to advanced audio manipulation and effects processing, the possibilities are vast. The key. Windows Audio Session API (WASAPI). Clients use this API to create and manage audio streams to and from audio endpoint devices. DeviceTopology API. Clients use this API Windows Audio Session API (WASAPI). Clients use this API to create and manage audio streams to and from audio endpoint devices. DeviceTopology API. Clients use this API

Web Audio API - Web APIs

Pull requests, and bug reports, helping make SDL what it is today.If you're migrating from SDL2, we've put a comprehensive list of changes and migration tips here: are some of the highlights of what's new in SDL 3.0:Extremely good documentation: We've spent a ton of effort writing and revising the API reference.Example programs to get you started, running in your web browser!More consistent API naming conventions. Everything is named consistently across the API now, instead of different subsystems taking different approaches. Also, we've tended toward more descriptive names for things in SDL3.Main Callbacks: optionally run your program from callbacks instead of main().GPU API: access to modern 3D rendering and GPU compute in a cross-platform way.Dialog API: access to system file dialogs (file and folder selection UI for opening/saving).Filesystem API: simple directory management and globbing, access to topic-specific user folders.Storage API: Abstract interface to platform-specific storage.Camera API: access to webcams.Pen API: access to pens (like Wacom tablets and Apple Pencil, etc).Logical audio devices: different parts of an app can get their own unique audio device to use.Audio streams: handle buffering, converting, resampling, mixing, channel mapping, pitch, and gain. Bind to an audio device and go!Default audio devices: SDL3 will automatically manage migrating to new physical hardware as devices are plugged in, ripped out, or changed.Properties API: fast, flexible dictionaries of name/value pairs.Process API: Spawn child processes and communicate with them in various ways.Colorspace support: Surfaces and the renderer, etc, can manage multiple colorspaces.The Clipboard API can support any data type (SDL2 only handled text), and apps can provide data in multiple formats upon request in a provided callback.Better keyboard input, for all your keypress needs.Customizable virtual keyboards on iOS and Android.High DPI support is dramatically improved over SDL2.App metadata API for letting SDL report things about your app correctly (like in the About dialog on macOS, etc).and much, much more.Please let us know what you think, and report any issues on GitHub: 3.1.10 This is the first release candidate for the official SDL 3.0 release!We've gone through and smashed a ton of bugs and updated lots of documentation.Please read through the installation documentation for the packages below, and check out the updated content on the wiki and let us know what you think! 3.1.8 Sending response to the web API method scriptExecutionTimeoutS (default: "50") - specifies CallXML script execution timeout, in seconds Other parameters into CallXML variables CURL example 1: curl -uadmin:admin --digest -X POST -d "@my_file.xml" -H "Content-Type: text/plain;charset=UTF-8" -H "Referer: CURL example 2: curl -uadmin:XYZ --digest -X POST --data-binary "@yyy.xml" -H "Content-Type:text/plain;charset=UTF-8" -H "Referer: content of the xml script file: SUBSCRIBE sip:[email protected]:5062 SIP/2.0Via: SIP/2.0/UDP x.x.x.x:5070;branch=z9hG4bK13054182From: blf_subscriber00001 ;tag=1641318497To: Call-ID: 0_2505407707_bogusCSeq: 1 SUBSCRIBEContact: Accept: application/reginfo+xmlMax-Forwards: 70User-Agent: Yealink SIP-T21P_E2 52.80.0.95Expires: 300Event: dialogContent-Length: 0]]> Example of calling web API in HTML using AJAX: Click-To-Call HTML button POST /API/MainViewModel/CreateCalls_Post - starts call generator specific to the API request, generates multiple outgoing calls using uploaded script. Returns Call-ID SIP header of the first created SIP call in JSON format: {'status': 'OK', 'sipCallId': 'the_new_call_id'}. URL query parameters are: maxCPS, intervalMs, intervalMsL, intervalMsH, maxConcurrentCalls, maxCallsToAttempt, callsPerTick. Other URL query parameters are passed into CallXML variables. The API method passes variable 'apiSequenceNumber' into the scripts, it means zero-based counter of executed scripts. CURL example: curl -uadmin:admin --digest -X POST -d "@my_file.xml" -H "Content-Type:text/plain;charset=UTF-8" GET /API/MainViewModel/CreateSingleCallCommand - creates an outgoing call using currently pre-configured script GET /API/MainViewModel/CurrentCallExists?callerId=XXX&calledId=YYY - checks existence of current call, returns 'true' or 'false' GET /API/MainViewModel/DestroyCall?[sipCallId=XXX][&calledId=YYYY][&calledIdSuffix=ZZZZ] - destroys current SIP call(s) with specified parameters: sipCallId - SIP Call-ID header of the destroyed call(s) calledId - CLD (B number) of the destroyed call(s) calledIdSuffix - CLD (B number) suffix of the destroyed call(s) - this parameter omits tech. prefix GET /DownloadRecordedFile?sipCallId=xxxx&fileId=mixed - downloads recorded WAV or PCAP file from a specific call Parameters: sipCallId - Call-ID header of the SIP call, used to identify the SIP call fileId (rx/tx/mixed) - type of recorded audio file. For audio wav files: "rx" - received RTP audio stream, "tx" - transmitted RTP audio stream, "mixed" - mix or received and transmitted RTP audio

The API Console - API Preamps - API Audio - Vintage

Transcription logging with the Speech SDK, you execute the method enableAudioLogging of the SPXSpeechTranslationConfiguration class instance.[speechTranslationConfig enableAudioLogging];To check whether logging is enabled, get the value of the SPXSpeechServiceConnectionEnableAudioLogging property:NSString *isAudioLoggingEnabled = [speechTranslationConfig getPropertyById:SPXSpeechServiceConnectionEnableAudioLogging];Each TranslationRecognizer that uses this speechTranslationConfig has audio and transcription logging enabled.Enable logging for Speech to text REST API for short audioIf you use Speech to text REST API for short audio and want to enable audio and transcription logging, you need to use the query parameter and value storeAudio=true as a part of your REST request. A sample request looks like this: audio and transcription logging for a custom model endpointThis method is applicable for custom speech endpoints only.Logging can be enabled or disabled in the persistent custom model endpoint settings. When logging is enabled (turned on) for a custom model endpoint, then you don't need to enable logging at the recognition session level with the SDK or REST API. Even when logging isn't enabled for a custom model endpoint, you can enable logging temporarily at the recognition session level with the SDK or REST API.WarningFor custom model endpoints, the logging setting of your deployed endpoint is prioritized over your session-level setting (SDK or REST API). If logging is enabled for the custom model endpoint, the session-level setting (whether it's set to true or false) is ignored. If logging isn't enabled for the custom model endpoint, the session-level setting determines whether logging is active.You can enable audio and transcription logging for a custom model endpoint:When you create the endpoint using the Speech Studio, REST API, or Speech CLI. For details about how to enable logging for a custom speech endpoint, see Deploy a custom speech model.When you update the endpoint (Endpoints_Update) using the Speech to text REST API. For an example of how to update the logging setting for an endpoint, see Turn off logging for a custom model endpoint. But instead of setting the contentLoggingEnabled property to false, set it to true to enable logging for the endpoint.Turn off logging for a custom model endpointTo disable audio and transcription logging for a custom model endpoint, you must update the persistent endpoint logging setting using the Speech to text REST API. There isn't a way to disable logging for an existing custom model endpoint using the Speech Studio.To turn off logging for a custom endpoint, use the Endpoints_Update operation of the Speech to text REST API. Construct the request body according to the following instructions:Set the contentLoggingEnabled property within properties. Set this property to true to enable logging of the endpoint's traffic. Set this property to false to disable logging of the endpoint's traffic.Make an HTTP PATCH request using the URI as shown in the following example.

Visualizations with Web Audio API - Web APIs

Analog desks.API Vision Console EmulationThe API Vision Console Emulation Bundle turns LUNA into a full API console. Track in real time through API preamp and channel modules, then mix with API's illustrious analog summing and bus compression — seamlessly switching between low-latency tracking using Apollo DSP (Apollo mode only), and high-powered native mixing within LUNA. You can create new audio, instrument, and bus tracks with API Vision Console elements pre-assigned, building sessions within the complete Vision console emulation experience.About LUNA Extensions documentationLearn how to use the LUNA Tape Extensions at Using Tape LUNA Extensions .Learn how to use Neve and API Summing Extensions at Using Neve Summing and Using API Summing .Learn how to use API Vision Console Emulation at API Vision Console Emulation .Learn how to operate the ARP MIDI Arpeggiator at ARP MIDI Arpeggiator .Learn about LUNA Extensions at About LUNA Extensions .UAD instrumentsUAD Instruments bring Universal Audio's expertise in electrical and acoustic modeling, sampling, synthesis, and signal processing to instruments for the first time ever.LUNA Recording System comes with a curated bundle of inspiring sounds, delivering a new level of realism for software-based instruments.The Shape and Spitfire Audio UAD instruments are exclusive to LUNA Recording System. Other UAD Instruments can be used in LUNA and macOS hosts that support VST 3, Audio Units, or AAX plug-ins.Moog® MinimoogDeveloped in partnership with Moog Music, the Minimoog UAD Instrument is an incredibly accurate and inspiring emulation of Bob Moog's pioneering synthesizer.By perfectly capturing every nuance of the classic Moog oscillators and ladder filters and harnessing discrete transistor VCA modeling, the Minimoog UAD Instrument faithfully captures every detail of this classic instrument used by everyone from Parliament-Funkadelic, to Kraftwerk, Dr. Dre, and more.Ravel™ Grand PianoUA's first acoustic instrument model, Ravel is a breathtaking emulation of a Steinway Model B* grand piano based on UA's exclusive sampling, physical modeling, and new Ultra‑Resonance™ technology, giving you all the sonic nuance of this studio classic.Captured at Ocean Way Studios, Ravel gives you an immaculately recorded studio piano that’s album-ready, with easy‑to‑use Tone, Dynamics, and Microphone controls, as well as an innovative Reverse feature for startlingly creative sounds and textures.ShapeA comprehensive creative toolkit included free with LUNA, Shape is a painstakingly curated UAD Instrument featuring a collection of the best vintage keys, drums/percussion, guitar/bass, orchestral content, and real time synthesis - courtesy of Universal Audio, Spitfire Audio, Orange Tree Samples, Loops de la Creme, and more. You can expand Shape with more content and sample packs.About UAD instruments documentationLearn how to insert, play, and record UAD Instruments in Playing a Virtual Instrument and Recording MIDI .Learn how to operate individual UAD Instrument controls in the separate UAD Instruments section.Non-destructive audioWhen you record audio in LUNA,. Windows Audio Session API (WASAPI). Clients use this API to create and manage audio streams to and from audio endpoint devices. DeviceTopology API. Clients use this API Windows Audio Session API (WASAPI). Clients use this API to create and manage audio streams to and from audio endpoint devices. DeviceTopology API. Clients use this API

Using the Web Audio API - Web APIs

Course DescriptionLearn to create sounds using nothing but code! Synthesize and visualize audio, and add fun effects with JavaScript. Use these skills to build custom audio into games, web applications, or art projects in the browser. You'll appreciate the richness of sound that is only possible with the web audio API!This course and others like it are available as part of our FrontendMasters video subscription.PreviewCloseWhat They're SayingGaining access to a complex yet superb set of APIs: Web Audio API. Thank you Matt DesLauriers for teaching this!Course DetailsPublished: December 7, 2021Learn Straight from the Experts Who Shape the Modern WebYour Path to Senior Developer and Beyond200+ In-depth courses18 Learning PathsIndustry Leading ExpertsLive Interactive WorkshopsTable of ContentsIntroductionSection Duration: 17 minutesMatt DesLauriers introduces the course by providing an overview of the course material, a walkthrough of the course repo, and some prerequisites. The demos provided in this segment involve mp3, buffered mp3, gain, waveform, meter, and frequency.Matt discusses the basics of how audio and digital audio works including a description of sound, waveforms, and frequency. A closer look into what a waveform represents is also covered in this segment.Matt walks through some artistic examples that involve the use of web audio. Personal projects with web audio including art, audio visualization, a game, and work from other developers are provided to showcase web audio's many applications.Web Audio APISection Duration: 30 minutesMatt provides a brief overview of what the Web Audio API is, a graph of how audio data flows from input to output, and