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234 lines
10 KiB
JavaScript
234 lines
10 KiB
JavaScript
// Borrowed from Agnai (AGPLv3)
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// https://github.com/agnaistic/agnai/blob/dev/web/pages/Chat/components/SpeechRecognitionRecorder.tsx
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// First version by Cohee#1207
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// Adapted by Tony-sama
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export { BrowserSttProvider }
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const DEBUG_PREFIX = "<Speech Recognition module (Browser)> "
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class BrowserSttProvider {
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//########//
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// Config //
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//########//
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settings = {
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language: ""
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}
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defaultSettings = {
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language: "en-US",
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}
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processTranscriptFunction = null;
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get settingsHtml() {
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let html = ' \
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<span>Language</span> </br> \
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<select id="speech_recognition_browser_provider_language"> \
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<option value="ar-SA">ar-SA: Arabic (Saudi Arabia)</option> \
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<option value="bn-BD">bn-BD: Bangla (Bangladesh)</option> \
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<option value="bn-IN">bn-IN: Bangla (India)</option> \
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<option value="cs-CZ">cs-CZ: Czech (Czech Republic)</option> \
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<option value="da-DK">da-DK: Danish (Denmark)</option> \
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<option value="de-AT">de-AT: German (Austria)</option> \
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<option value="de-CH">de-CH: German (Switzerland)</option> \
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<option value="de-DE">de-DE: German (Germany)</option> \
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<option value="el-GR">el-GR: Greek (Greece)</option> \
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<option value="en-AU">en-AU: English (Australia)</option> \
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<option value="en-CA">en-CA: English (Canada)</option> \
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<option value="en-GB">en-GB: English (United Kingdom)</option> \
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<option value="en-IE">en-IE: English (Ireland)</option> \
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<option value="en-IN">en-IN: English (India)</option> \
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<option value="en-NZ">en-NZ: English (New Zealand)</option> \
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<option value="en-US">en-US: English (United States)</option> \
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<option value="en-ZA">en-ZA: English (South Africa)</option> \
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<option value="es-AR">es-AR: Spanish (Argentina)</option> \
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<option value="es-CL">es-CL: Spanish (Chile)</option> \
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<option value="es-CO">es-CO: Spanish (Columbia)</option> \
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<option value="es-ES">es-ES: Spanish (Spain)</option> \
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<option value="es-MX">es-MX: Spanish (Mexico)</option> \
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<option value="es-US">es-US: Spanish (United States)</option> \
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<option value="fi-FI">fi-FI: Finnish (Finland)</option> \
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<option value="fr-BE">fr-BE: French (Belgium)</option> \
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<option value="fr-CA">fr-CA: French (Canada)</option> \
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<option value="fr-CH">fr-CH: French (Switzerland)</option> \
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<option value="fr-FR">fr-FR: French (France)</option> \
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<option value="he-IL">he-IL: Hebrew (Israel)</option> \
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<option value="hi-IN">hi-IN: Hindi (India)</option> \
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<option value="hu-HU">hu-HU: Hungarian (Hungary)</option> \
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<option value="id-ID">id-ID: Indonesian (Indonesia)</option> \
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<option value="it-CH">it-CH: Italian (Switzerland)</option> \
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<option value="it-IT">it-IT: Italian (Italy)</option> \
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<option value="ja-JP">ja-JP: Japanese (Japan)</option> \
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<option value="ko-KR">ko-KR: Korean (Republic of Korea)</option> \
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<option value="nl-BE">nl-BE: Dutch (Belgium)</option> \
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<option value="nl-NL">nl-NL: Dutch (The Netherlands)</option> \
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<option value="no-NO">no-NO: Norwegian (Norway)</option> \
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<option value="pl-PL">pl-PL: Polish (Poland)</option> \
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<option value="pt-BR">pt-BR: Portugese (Brazil)</option> \
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<option value="pt-PT">pt-PT: Portugese (Portugal)</option> \
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<option value="ro-RO">ro-RO: Romanian (Romania)</option> \
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<option value="ru-RU">ru-RU: Russian (Russian Federation)</option> \
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<option value="sk-SK">sk-SK: Slovak (Slovakia)</option> \
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<option value="sv-SE">sv-SE: Swedish (Sweden)</option> \
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<option value="ta-IN">ta-IN: Tamil (India)</option> \
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<option value="ta-LK">ta-LK: Tamil (Sri Lanka)</option> \
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<option value="th-TH">th-TH: Thai (Thailand)</option> \
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<option value="tr-TR">tr-TR: Turkish (Turkey)</option> \
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<option value="zh-CN">zh-CN: Chinese (China)</option> \
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<option value="zh-HK">zh-HK: Chinese (Hond Kong)</option> \
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<option value="zh-TW">zh-TW: Chinese (Taiwan)</option> \
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</select> \
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'
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return html
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}
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onSettingsChange() {
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// Used when provider settings are updated from UI
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this.settings.language = $("#speech_recognition_browser_provider_language").val();
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console.debug(DEBUG_PREFIX+"Change language to",this.settings.language);
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this.loadSettings(this.settings);
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}
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static capitalizeInterim(interimTranscript) {
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let capitalizeIndex = -1;
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if (interimTranscript.length > 2 && interimTranscript[0] === ' ') capitalizeIndex = 1;
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else if (interimTranscript.length > 1) capitalizeIndex = 0;
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if (capitalizeIndex > -1) {
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const spacing = capitalizeIndex > 0 ? ' '.repeat(capitalizeIndex - 1) : '';
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const capitalized = interimTranscript[capitalizeIndex].toLocaleUpperCase();
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const rest = interimTranscript.substring(capitalizeIndex + 1);
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interimTranscript = spacing + capitalized + rest;
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}
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return interimTranscript;
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}
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static composeValues(previous, interim) {
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let spacing = '';
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if (previous.endsWith('.')) spacing = ' ';
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return previous + spacing + interim;
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}
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loadSettings(settings) {
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const processTranscript = this.processTranscriptFunction;
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// Populate Provider UI given input settings
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if (Object.keys(settings).length == 0) {
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console.debug(DEBUG_PREFIX+"Using default browser STT settings")
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}
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// Initialise as defaultSettings
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this.settings = this.defaultSettings;
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for (const key in settings){
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if (key in this.settings){
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this.settings[key] = settings[key]
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} else {
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throw `Invalid setting passed to Speech recogniton extension (browser): ${key}`
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}
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}
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$("#speech_recognition_browser_provider_language").val(this.settings.language);
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const speechRecognitionSettings = $.extend({
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grammar: '' // Custom grammar
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}, options);
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const speechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
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const speechRecognitionList = window.SpeechGrammarList || window.webkitSpeechGrammarList;
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if (!speechRecognition) {
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console.warn(DEBUG_PREFIX+'Speech recognition is not supported in this browser.');
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$("#microphone_button").hide();
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toastr.error("Speech recognition is not supported in this browser, use another browser or another provider of SillyTavern-extras Speech recognition extension.", "Speech recognition activation Failed (Browser)", { timeOut: 10000, extendedTimeOut: 20000, preventDuplicates: true });
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return;
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}
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const recognition = new speechRecognition();
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if (speechRecognitionSettings.grammar && speechRecognitionList) {
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speechRecognitionList.addFromString(speechRecognitionSettings.grammar, 1);
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recognition.grammars = speechRecognitionList;
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}
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recognition.continuous = true;
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recognition.interimResults = true;
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recognition.lang = this.settings.language;
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const textarea = $('#send_textarea');
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const button = $('#microphone_button');
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let listening = false;
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button.off('click').on("click", function () {
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if (listening) {
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recognition.stop();
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} else {
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recognition.start();
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}
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listening = !listening;
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});
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let initialText = '';
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recognition.onresult = function (speechEvent) {
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let finalTranscript = '';
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let interimTranscript = ''
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for (let i = speechEvent.resultIndex; i < speechEvent.results.length; ++i) {
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const transcript = speechEvent.results[i][0].transcript;
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if (speechEvent.results[i].isFinal) {
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let interim = BrowserSttProvider.capitalizeInterim(transcript);
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if (interim != '') {
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let final = finalTranscript;
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final = BrowserSttProvider.composeValues(final, interim);
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if (final.slice(-1) != '.' & final.slice(-1) != '?') final += '.';
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finalTranscript = final;
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recognition.abort();
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listening = false;
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}
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interimTranscript = ' ';
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} else {
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interimTranscript += transcript;
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}
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}
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interimTranscript = BrowserSttProvider.capitalizeInterim(interimTranscript);
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textarea.val(initialText + finalTranscript + interimTranscript);
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};
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recognition.onerror = function (event) {
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console.error('Error occurred in recognition:', event.error);
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//if ($('#speech_recognition_debug').is(':checked'))
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// toastr.error('Error occurred in recognition:'+ event.error, 'STT Generation error (Browser)', { timeOut: 10000, extendedTimeOut: 20000, preventDuplicates: true });
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};
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recognition.onend = function () {
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listening = false;
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button.toggleClass('fa-microphone fa-microphone-slash');
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const newText = textarea.val().substring(initialText.length);
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textarea.val(textarea.val().substring(0,initialText.length));
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processTranscript(newText);
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};
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recognition.onstart = function () {
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initialText = textarea.val();
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button.toggleClass('fa-microphone fa-microphone-slash');
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if ($("#speech_recognition_message_mode").val() == "replace") {
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textarea.val("");
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initialText = ""
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}
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};
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$("#microphone_button").show();
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console.debug(DEBUG_PREFIX+"Browser STT settings loaded")
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}
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}
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