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React Native Voice Processor

GitHub releaseGitHub

npm

Made in Vancouver, Canada by Picovoice

Twitter URL

YouTube Channel Views

The React Native Voice Processor is an asynchronous audio capture library designed for real-time audio processing on mobile devices. Given some specifications, the library delivers frames of raw audio data to the user via listeners.

Table of Contents

Requirements

Compatibility

  • React Native 0.68.7+
  • Android 5.0+ (API 21+)
  • iOS 13.0+

Installation

React Native Voice Processor is available via npm. To import it into your React Native project install with npm or yarn:

yarn add @picovoice/react-native-voice-processor

or

npm i @picovoice/react-native-voice-processor --save

Permissions

To enable recording with the hardware's microphone, you must first ensure that you have enabled the proper permission on both iOS and Android.

On iOS, open the Info.plist file and add the following line:

<key>NSMicrophoneUsageDescription</key>
<string>[Permission explanation]</string>

On Android, open the AndroidManifest.xml and add the following line:

<uses-permissionandroid:name="android.permission.RECORD_AUDIO" />

See our example app for how to properly request this permission from your users.

Usage

Access the singleton instance of VoiceProcessor:

import{VoiceProcessor,VoiceProcessorError}from'@picovoice/react-native-voice-processor';letvoiceProcessor=VoiceProcessor.instance;

Add listeners for audio frames and errors:

voiceProcessor.addFrameListener((frame: number[])=>{// use audio frame});voiceProcessor.addErrorListener((error: VoiceProcessorError)=>{// handle error});

Ask for audio record permission and start recording with the desired frame length and audio sample rate:

constframeLength=512;constsampleRate=16000;try{if(awaitvoiceProcessor.hasRecordAudioPermission()){awaitvoiceProcessor.start(frameLength,sampleRate);}else{// user did not grant permission}}catch(e){// handle start error}

Stop audio capture:

try{awaitthis._voiceProcessor.stop();}catch(e){// handle stop error}

Once audio capture has started successfully, any frame listeners assigned to the VoiceProcessor will start receiving audio frames with the given frameLength and sampleRate.

Capturing with Multiple Listeners

Any number of listeners can be added to and removed from the VoiceProcessor instance. However, the instance can only record audio with a single audio configuration (frameLength and sampleRate), which all listeners will receive once a call to start() has been made. To add multiple listeners:

constlistener1=(frame)=>{};constlistener2=(frame)=>{};constlisteners=[listener1,listener2];voiceProcessor.addFrameListeners(listeners);voiceProcessor.removeFrameListeners(listeners);// orvoiceProcessor.clearFrameListeners();

Example

The React Native Voice Processor app demonstrates how to ask for user permissions and capture output from the VoiceProcessor.

To launch the demo, run:

yarn bootstrapyarn example ios
# oryarn example android

Releases

v1.2.0 - August 11, 2023

  • Numerous API improvements
  • Error handling improvements
  • Allow for multiple listeners
  • Upgrades to testing infrastructure and example app

v1.1.0 - February 23, 2023

  • Migrated to new template

v1.0.0 - March 29, 2021

  • Initial public release

About

React Native audio recording package designed for real-time speech audio processing

Topics

androidaudioaudio-processingaudio-recorderiosjavajavascriptreact-nativeswifttypescript

Resources

Readme
Apache-2.0 license
Activity
Custom properties

Stars

48 stars

Watchers

6 watching

Forks

5 forks
Report repository

Releases

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
BranchesTags
Repository files navigation
React Native Voice Processor
GitHub releaseGitHub
npm
Made in Vancouver, Canada by Picovoice
Twitter URL
YouTube Channel Views
The React Native Voice Processor is an asynchronous audio capture library designed for real-time audio
processing on mobile devices. Given some specifications, the library delivers frames of raw audio
data to the user via listeners.
Table of Contents
Requirements
Compatibility
  • React Native 0.68.7+
  • Android 5.0+ (API 21+)
  • iOS 13.0+
Installation
React Native Voice Processor is available via npm.
To import it into your React Native project install with npm or yarn:
yarn add @picovoice/react-native-voice-processor
or
npm i @picovoice/react-native-voice-processor --save
Permissions
To enable recording with the hardware's microphone, you must first ensure that you have enabled the proper permission on both iOS and Android.
On iOS, open the Info.plist file and add the following line:
<key>NSMicrophoneUsageDescription</key>
<string>[Permission explanation]</string>
On Android, open the AndroidManifest.xml and add the following line:
<uses-permissionandroid:name="android.permission.RECORD_AUDIO" />
See our example app for how to properly request this permission from your users.
Usage
Access the singleton instance of VoiceProcessor:
import{VoiceProcessor,VoiceProcessorError}from'@picovoice/react-native-voice-processor';letvoiceProcessor=VoiceProcessor.instance;
Add listeners for audio frames and errors:
voiceProcessor.addFrameListener((frame: number[])=>{// use audio frame});voiceProcessor.addErrorListener((error: VoiceProcessorError)=>{// handle error});
Ask for audio record permission and start recording with the desired frame length and audio sample rate:
constframeLength=512;constsampleRate=16000;try{if(awaitvoiceProcessor.hasRecordAudioPermission()){awaitvoiceProcessor.start(frameLength,sampleRate);}else{// user did not grant permission}}catch(e){// handle start error}
Stop audio capture:
try{awaitthis._voiceProcessor.stop();}catch(e){// handle stop error}
Once audio capture has started successfully, any frame listeners assigned to the VoiceProcessor will start receiving audio frames with the given frameLength and sampleRate.
Capturing with Multiple Listeners
Any number of listeners can be added to and removed from the VoiceProcessor instance. However,
the instance can only record audio with a single audio configuration (frameLength and sampleRate),
which all listeners will receive once a call to start() has been made. To add multiple listeners:
constlistener1=(frame)=>{};constlistener2=(frame)=>{};constlisteners=[listener1,listener2];voiceProcessor.addFrameListeners(listeners);voiceProcessor.removeFrameListeners(listeners);// orvoiceProcessor.clearFrameListeners();
Example
The React Native Voice Processor app demonstrates how to ask for user permissions and capture output from the VoiceProcessor.
To launch the demo, run:
yarn bootstrapyarn example ios
# oryarn example android
Releases
v1.2.0 - August 11, 2023
  • Numerous API improvements
  • Error handling improvements
  • Allow for multiple listeners
  • Upgrades to testing infrastructure and example app
v1.1.0 - February 23, 2023
  • Migrated to new template
v1.0.0 - March 29, 2021
  • Initial public release
About
React Native audio recording package designed for real-time speech audio processing
Topics
androidaudioaudio-processingaudio-recorderiosjavajavascriptreact-nativeswifttypescript
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
48 stars
Watchers
6 watching
Forks
5 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
React Native Voice Processor
GitHub releaseGitHub
npm
Made in Vancouver, Canada by Picovoice
Twitter URL
YouTube Channel Views
The React Native Voice Processor is an asynchronous audio capture library designed for real-time audio
processing on mobile devices. Given some specifications, the library delivers frames of raw audio
data to the user via listeners.
Table of Contents
Requirements
Compatibility
  • React Native 0.68.7+
  • Android 5.0+ (API 21+)
  • iOS 13.0+
Installation
React Native Voice Processor is available via npm.
To import it into your React Native project install with npm or yarn:
yarn add @picovoice/react-native-voice-processor
or
npm i @picovoice/react-native-voice-processor --save
Permissions
To enable recording with the hardware's microphone, you must first ensure that you have enabled the proper permission on both iOS and Android.
On iOS, open the Info.plist file and add the following line:
<key>NSMicrophoneUsageDescription</key>
<string>[Permission explanation]</string>
On Android, open the AndroidManifest.xml and add the following line:
<uses-permissionandroid:name="android.permission.RECORD_AUDIO" />
See our example app for how to properly request this permission from your users.
Usage
Access the singleton instance of VoiceProcessor:
import{VoiceProcessor,VoiceProcessorError}from'@picovoice/react-native-voice-processor';letvoiceProcessor=VoiceProcessor.instance;
Add listeners for audio frames and errors:
voiceProcessor.addFrameListener((frame: number[])=>{// use audio frame});voiceProcessor.addErrorListener((error: VoiceProcessorError)=>{// handle error});
Ask for audio record permission and start recording with the desired frame length and audio sample rate:
constframeLength=512;constsampleRate=16000;try{if(awaitvoiceProcessor.hasRecordAudioPermission()){awaitvoiceProcessor.start(frameLength,sampleRate);}else{// user did not grant permission}}catch(e){// handle start error}
Stop audio capture:
try{awaitthis._voiceProcessor.stop();}catch(e){// handle stop error}
Once audio capture has started successfully, any frame listeners assigned to the VoiceProcessor will start receiving audio frames with the given frameLength and sampleRate.
Capturing with Multiple Listeners
Any number of listeners can be added to and removed from the VoiceProcessor instance. However,
the instance can only record audio with a single audio configuration (frameLength and sampleRate),
which all listeners will receive once a call to start() has been made. To add multiple listeners:
constlistener1=(frame)=>{};constlistener2=(frame)=>{};constlisteners=[listener1,listener2];voiceProcessor.addFrameListeners(listeners);voiceProcessor.removeFrameListeners(listeners);// orvoiceProcessor.clearFrameListeners();
Example
The React Native Voice Processor app demonstrates how to ask for user permissions and capture output from the VoiceProcessor.
To launch the demo, run:
yarn bootstrapyarn example ios
# oryarn example android
Releases
v1.2.0 - August 11, 2023
  • Numerous API improvements
  • Error handling improvements
  • Allow for multiple listeners
  • Upgrades to testing infrastructure and example app
v1.1.0 - February 23, 2023
  • Migrated to new template
v1.0.0 - March 29, 2021
  • Initial public release
About
React Native audio recording package designed for real-time speech audio processing
Topics
androidaudioaudio-processingaudio-recorderiosjavajavascriptreact-nativeswifttypescript
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
48 stars
Watchers
6 watching
Forks
5 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
React Native Voice Processor
GitHub releaseGitHub
npm
Made in Vancouver, Canada by Picovoice
Twitter URL
YouTube Channel Views
The React Native Voice Processor is an asynchronous audio capture library designed for real-time audio
processing on mobile devices. Given some specifications, the library delivers frames of raw audio
data to the user via listeners.
Table of Contents
Requirements
Compatibility
  • React Native 0.68.7+
  • Android 5.0+ (API 21+)
  • iOS 13.0+
Installation
React Native Voice Processor is available via npm.
To import it into your React Native project install with npm or yarn:
yarn add @picovoice/react-native-voice-processor
or
npm i @picovoice/react-native-voice-processor --save
Permissions
To enable recording with the hardware's microphone, you must first ensure that you have enabled the proper permission on both iOS and Android.
On iOS, open the Info.plist file and add the following line:
<key>NSMicrophoneUsageDescription</key>
<string>[Permission explanation]</string>
On Android, open the AndroidManifest.xml and add the following line:
<uses-permissionandroid:name="android.permission.RECORD_AUDIO" />
See our example app for how to properly request this permission from your users.
Usage
Access the singleton instance of VoiceProcessor:
import{VoiceProcessor,VoiceProcessorError}from'@picovoice/react-native-voice-processor';letvoiceProcessor=VoiceProcessor.instance;
Add listeners for audio frames and errors:
voiceProcessor.addFrameListener((frame: number[])=>{// use audio frame});voiceProcessor.addErrorListener((error: VoiceProcessorError)=>{// handle error});
Ask for audio record permission and start recording with the desired frame length and audio sample rate:
constframeLength=512;constsampleRate=16000;try{if(awaitvoiceProcessor.hasRecordAudioPermission()){awaitvoiceProcessor.start(frameLength,sampleRate);}else{// user did not grant permission}}catch(e){// handle start error}
Stop audio capture:
try{awaitthis._voiceProcessor.stop();}catch(e){// handle stop error}
Once audio capture has started successfully, any frame listeners assigned to the VoiceProcessor will start receiving audio frames with the given frameLength and sampleRate.
Capturing with Multiple Listeners
Any number of listeners can be added to and removed from the VoiceProcessor instance. However,
the instance can only record audio with a single audio configuration (frameLength and sampleRate),
which all listeners will receive once a call to start() has been made. To add multiple listeners:
constlistener1=(frame)=>{};constlistener2=(frame)=>{};constlisteners=[listener1,listener2];voiceProcessor.addFrameListeners(listeners);voiceProcessor.removeFrameListeners(listeners);// orvoiceProcessor.clearFrameListeners();
Example
The React Native Voice Processor app demonstrates how to ask for user permissions and capture output from the VoiceProcessor.
To launch the demo, run:
yarn bootstrapyarn example ios
# oryarn example android
Releases
v1.2.0 - August 11, 2023
  • Numerous API improvements
  • Error handling improvements
  • Allow for multiple listeners
  • Upgrades to testing infrastructure and example app
v1.1.0 - February 23, 2023
  • Migrated to new template
v1.0.0 - March 29, 2021
  • Initial public release
About
React Native audio recording package designed for real-time speech audio processing
Topics
androidaudioaudio-processingaudio-recorderiosjavajavascriptreact-nativeswifttypescript
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
48 stars
Watchers
6 watching
Forks
5 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
Repository files navigation
React Native Voice Processor
GitHub releaseGitHub
npm
Made in Vancouver, Canada by Picovoice
Twitter URL
YouTube Channel Views
The React Native Voice Processor is an asynchronous audio capture library designed for real-time audio
processing on mobile devices. Given some specifications, the library delivers frames of raw audio
data to the user via listeners.
Table of Contents
Requirements
Compatibility
  • React Native 0.68.7+
  • Android 5.0+ (API 21+)
  • iOS 13.0+
Installation
React Native Voice Processor is available via npm.
To import it into your React Native project install with npm or yarn:
yarn add @picovoice/react-native-voice-processor
or
npm i @picovoice/react-native-voice-processor --save
Permissions
To enable recording with the hardware's microphone, you must first ensure that you have enabled the proper permission on both iOS and Android.
On iOS, open the Info.plist file and add the following line:
<key>NSMicrophoneUsageDescription</key>
<string>[Permission explanation]</string>
On Android, open the AndroidManifest.xml and add the following line:
<uses-permissionandroid:name="android.permission.RECORD_AUDIO" />
See our example app for how to properly request this permission from your users.
Usage
Access the singleton instance of VoiceProcessor:
import{VoiceProcessor,VoiceProcessorError}from'@picovoice/react-native-voice-processor';letvoiceProcessor=VoiceProcessor.instance;
Add listeners for audio frames and errors:
voiceProcessor.addFrameListener((frame: number[])=>{// use audio frame});voiceProcessor.addErrorListener((error: VoiceProcessorError)=>{// handle error});
Ask for audio record permission and start recording with the desired frame length and audio sample rate:
constframeLength=512;constsampleRate=16000;try{if(awaitvoiceProcessor.hasRecordAudioPermission()){awaitvoiceProcessor.start(frameLength,sampleRate);}else{// user did not grant permission}}catch(e){// handle start error}
Stop audio capture:
try{awaitthis._voiceProcessor.stop();}catch(e){// handle stop error}
Once audio capture has started successfully, any frame listeners assigned to the VoiceProcessor will start receiving audio frames with the given frameLength and sampleRate.
Capturing with Multiple Listeners
Any number of listeners can be added to and removed from the VoiceProcessor instance. However,
the instance can only record audio with a single audio configuration (frameLength and sampleRate),
which all listeners will receive once a call to start() has been made. To add multiple listeners:
constlistener1=(frame)=>{};constlistener2=(frame)=>{};constlisteners=[listener1,listener2];voiceProcessor.addFrameListeners(listeners);voiceProcessor.removeFrameListeners(listeners);// orvoiceProcessor.clearFrameListeners();
Example
The React Native Voice Processor app demonstrates how to ask for user permissions and capture output from the VoiceProcessor.
To launch the demo, run:
yarn bootstrapyarn example ios
# oryarn example android
Releases
v1.2.0 - August 11, 2023
  • Numerous API improvements
  • Error handling improvements
  • Allow for multiple listeners
  • Upgrades to testing infrastructure and example app
v1.1.0 - February 23, 2023
  • Migrated to new template
v1.0.0 - March 29, 2021
  • Initial public release
About
React Native audio recording package designed for real-time speech audio processing
Topics
androidaudioaudio-processingaudio-recorderiosjavajavascriptreact-nativeswifttypescript
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
48 stars
Watchers
6 watching
Forks
5 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
React Native Voice Processor
GitHub releaseGitHub
npm
Made in Vancouver, Canada by Picovoice
Twitter URL
YouTube Channel Views
The React Native Voice Processor is an asynchronous audio capture library designed for real-time audio
processing on mobile devices. Given some specifications, the library delivers frames of raw audio
data to the user via listeners.
Table of Contents
Requirements
Compatibility
  • React Native 0.68.7+
  • Android 5.0+ (API 21+)
  • iOS 13.0+
Installation
React Native Voice Processor is available via npm.
To import it into your React Native project install with npm or yarn:
yarn add @picovoice/react-native-voice-processor
or
npm i @picovoice/react-native-voice-processor --save
Permissions
To enable recording with the hardware's microphone, you must first ensure that you have enabled the proper permission on both iOS and Android.
On iOS, open the Info.plist file and add the following line:
<key>NSMicrophoneUsageDescription</key>
<string>[Permission explanation]</string>
On Android, open the AndroidManifest.xml and add the following line:
<uses-permissionandroid:name="android.permission.RECORD_AUDIO" />
See our example app for how to properly request this permission from your users.
Usage
Access the singleton instance of VoiceProcessor:
import{VoiceProcessor,VoiceProcessorError}from'@picovoice/react-native-voice-processor';letvoiceProcessor=VoiceProcessor.instance;
Add listeners for audio frames and errors:
voiceProcessor.addFrameListener((frame: number[])=>{// use audio frame});voiceProcessor.addErrorListener((error: VoiceProcessorError)=>{// handle error});
Ask for audio record permission and start recording with the desired frame length and audio sample rate:
constframeLength=512;constsampleRate=16000;try{if(awaitvoiceProcessor.hasRecordAudioPermission()){awaitvoiceProcessor.start(frameLength,sampleRate);}else{// user did not grant permission}}catch(e){// handle start error}
Stop audio capture:
try{awaitthis._voiceProcessor.stop();}catch(e){// handle stop error}
Once audio capture has started successfully, any frame listeners assigned to the VoiceProcessor will start receiving audio frames with the given frameLength and sampleRate.
Capturing with Multiple Listeners
Any number of listeners can be added to and removed from the VoiceProcessor instance. However,
the instance can only record audio with a single audio configuration (frameLength and sampleRate),
which all listeners will receive once a call to start() has been made. To add multiple listeners:
constlistener1=(frame)=>{};constlistener2=(frame)=>{};constlisteners=[listener1,listener2];voiceProcessor.addFrameListeners(listeners);voiceProcessor.removeFrameListeners(listeners);// orvoiceProcessor.clearFrameListeners();
Example
The React Native Voice Processor app demonstrates how to ask for user permissions and capture output from the VoiceProcessor.
To launch the demo, run:
yarn bootstrapyarn example ios
# oryarn example android
Releases
v1.2.0 - August 11, 2023
  • Numerous API improvements
  • Error handling improvements
  • Allow for multiple listeners
  • Upgrades to testing infrastructure and example app
v1.1.0 - February 23, 2023
  • Migrated to new template
v1.0.0 - March 29, 2021
  • Initial public release
About
React Native audio recording package designed for real-time speech audio processing
Topics
androidaudioaudio-processingaudio-recorderiosjavajavascriptreact-nativeswifttypescript
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
48 stars
Watchers
6 watching
Forks
5 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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React Native Voice Processor
GitHub releaseGitHub
npm
Made in Vancouver, Canada by Picovoice
Twitter URL
YouTube Channel Views
The React Native Voice Processor is an asynchronous audio capture library designed for real-time audio
processing on mobile devices. Given some specifications, the library delivers frames of raw audio
data to the user via listeners.
Table of Contents
Requirements
Compatibility
  • React Native 0.68.7+
  • Android 5.0+ (API 21+)
  • iOS 13.0+
Installation
React Native Voice Processor is available via npm.
To import it into your React Native project install with npm or yarn:
yarn add @picovoice/react-native-voice-processor
or
npm i @picovoice/react-native-voice-processor --save
Permissions
To enable recording with the hardware's microphone, you must first ensure that you have enabled the proper permission on both iOS and Android.
On iOS, open the Info.plist file and add the following line:
<key>NSMicrophoneUsageDescription</key>
<string>[Permission explanation]</string>
On Android, open the AndroidManifest.xml and add the following line:
<uses-permissionandroid:name="android.permission.RECORD_AUDIO" />
See our example app for how to properly request this permission from your users.
Usage
Access the singleton instance of VoiceProcessor:
import{VoiceProcessor,VoiceProcessorError}from'@picovoice/react-native-voice-processor';letvoiceProcessor=VoiceProcessor.instance;
Add listeners for audio frames and errors:
voiceProcessor.addFrameListener((frame: number[])=>{// use audio frame});voiceProcessor.addErrorListener((error: VoiceProcessorError)=>{// handle error});
Ask for audio record permission and start recording with the desired frame length and audio sample rate:
constframeLength=512;constsampleRate=16000;try{if(awaitvoiceProcessor.hasRecordAudioPermission()){awaitvoiceProcessor.start(frameLength,sampleRate);}else{// user did not grant permission}}catch(e){// handle start error}
Stop audio capture:
try{awaitthis._voiceProcessor.stop();}catch(e){// handle stop error}
Once audio capture has started successfully, any frame listeners assigned to the VoiceProcessor will start receiving audio frames with the given frameLength and sampleRate.
Capturing with Multiple Listeners
Any number of listeners can be added to and removed from the VoiceProcessor instance. However,
the instance can only record audio with a single audio configuration (frameLength and sampleRate),
which all listeners will receive once a call to start() has been made. To add multiple listeners:
constlistener1=(frame)=>{};constlistener2=(frame)=>{};constlisteners=[listener1,listener2];voiceProcessor.addFrameListeners(listeners);voiceProcessor.removeFrameListeners(listeners);// orvoiceProcessor.clearFrameListeners();
Example
The React Native Voice Processor app demonstrates how to ask for user permissions and capture output from the VoiceProcessor.
To launch the demo, run:
yarn bootstrapyarn example ios
# oryarn example android
Releases
v1.2.0 - August 11, 2023
  • Numerous API improvements
  • Error handling improvements
  • Allow for multiple listeners
  • Upgrades to testing infrastructure and example app
v1.1.0 - February 23, 2023
  • Migrated to new template
v1.0.0 - March 29, 2021
  • Initial public release
About
React Native audio recording package designed for real-time speech audio processing
Topics
androidaudioaudio-processingaudio-recorderiosjavajavascriptreact-nativeswifttypescript
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
48 stars
Watchers
6 watching
Forks
5 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
BranchesTags
Repository files navigation
React Native Voice Processor
GitHub releaseGitHub
npm
Made in Vancouver, Canada by Picovoice
Twitter URL
YouTube Channel Views
The React Native Voice Processor is an asynchronous audio capture library designed for real-time audio
processing on mobile devices. Given some specifications, the library delivers frames of raw audio
data to the user via listeners.
Table of Contents
Requirements
Compatibility
  • React Native 0.68.7+
  • Android 5.0+ (API 21+)
  • iOS 13.0+
Installation
React Native Voice Processor is available via npm.
To import it into your React Native project install with npm or yarn:
yarn add @picovoice/react-native-voice-processor
or
npm i @picovoice/react-native-voice-processor --save
Permissions
To enable recording with the hardware's microphone, you must first ensure that you have enabled the proper permission on both iOS and Android.
On iOS, open the Info.plist file and add the following line:
<key>NSMicrophoneUsageDescription</key>
<string>[Permission explanation]</string>
On Android, open the AndroidManifest.xml and add the following line:
<uses-permissionandroid:name="android.permission.RECORD_AUDIO" />
See our example app for how to properly request this permission from your users.
Usage
Access the singleton instance of VoiceProcessor:
import{VoiceProcessor,VoiceProcessorError}from'@picovoice/react-native-voice-processor';letvoiceProcessor=VoiceProcessor.instance;
Add listeners for audio frames and errors:
voiceProcessor.addFrameListener((frame: number[])=>{// use audio frame});voiceProcessor.addErrorListener((error: VoiceProcessorError)=>{// handle error});
Ask for audio record permission and start recording with the desired frame length and audio sample rate:
constframeLength=512;constsampleRate=16000;try{if(awaitvoiceProcessor.hasRecordAudioPermission()){awaitvoiceProcessor.start(frameLength,sampleRate);}else{// user did not grant permission}}catch(e){// handle start error}
Stop audio capture:
try{awaitthis._voiceProcessor.stop();}catch(e){// handle stop error}
Once audio capture has started successfully, any frame listeners assigned to the VoiceProcessor will start receiving audio frames with the given frameLength and sampleRate.
Capturing with Multiple Listeners
Any number of listeners can be added to and removed from the VoiceProcessor instance. However,
the instance can only record audio with a single audio configuration (frameLength and sampleRate),
which all listeners will receive once a call to start() has been made. To add multiple listeners:
constlistener1=(frame)=>{};constlistener2=(frame)=>{};constlisteners=[listener1,listener2];voiceProcessor.addFrameListeners(listeners);voiceProcessor.removeFrameListeners(listeners);// orvoiceProcessor.clearFrameListeners();
Example
The React Native Voice Processor app demonstrates how to ask for user permissions and capture output from the VoiceProcessor.
To launch the demo, run:
yarn bootstrapyarn example ios
# oryarn example android
Releases
v1.2.0 - August 11, 2023
  • Numerous API improvements
  • Error handling improvements
  • Allow for multiple listeners
  • Upgrades to testing infrastructure and example app
v1.1.0 - February 23, 2023
  • Migrated to new template
v1.0.0 - March 29, 2021
  • Initial public release
About
React Native audio recording package designed for real-time speech audio processing
Topics
androidaudioaudio-processingaudio-recorderiosjavajavascriptreact-nativeswifttypescript
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
48 stars
Watchers
6 watching
Forks
5 forks
Report repository
Releases
Used by
Contributors
Languages