add support for speechmatics languages and voices (#355)

lib/utils/speech-utils.js

@@ -36,6 +36,7 @@ const SttIbmLanguagesVoices = require('./speech-data/stt-ibm');
 const SttNvidiaLanguagesVoices = require('./speech-data/stt-nvidia');
 const SttCobaltLanguagesVoices = require('./speech-data/stt-cobalt');
 const SttSonioxLanguagesVoices = require('./speech-data/stt-soniox');
+const SttSpeechmaticsLanguagesVoices = require('./speech-data/stt-speechmatics');
 const SttAssemblyaiLanguagesVoices = require('./speech-data/stt-assemblyai');
 const SttVerbioLanguagesVoices = require('./speech-data/stt-verbio');
 
@@ -683,6 +684,8 @@ async function getLanguagesAndVoicesForVendor(logger, vendor, credential, getTts
       return await getLanguagesVoicesForWhisper(credential, getTtsVoices, logger);
     case 'verbio':
       return await getLanguagesVoicesForVerbio(credential, getTtsVoices, logger);
+    case 'speechmatics':
+      return await getLanguagesVoicesForSpeechmatics(credential, getTtsVoices, logger);
     default:
       logger.info(`invalid vendor ${vendor}, return empty result`);
       throw new Error(`Invalid vendor ${vendor}`);
@@ -795,6 +798,10 @@ async function getLanguagesVoicesForSoniox(credential) {
   return tranform(undefined, SttSonioxLanguagesVoices);
 }
 
+async function getLanguagesVoicesForSpeechmatics(credential) {
+  return tranform(undefined, SttSpeechmaticsLanguagesVoices);
+}
+
 async function getLanguagesVoicesForElevenlabs(credential) {
   if (credential) {
     const get = bent('https://api.elevenlabs.io', 'GET', 'json', {