diff --git a/src/api/types.ts b/src/api/types.ts
index 6658243..7e4eaf8 100644
--- a/src/api/types.ts
+++ b/src/api/types.ts
@@ -258,6 +258,8 @@ export interface SpeechCredential {
   custom_tts_endpoint: null | string;
   use_custom_stt: number;
   custom_stt_endpoint: null | string;
+  client_id: null | string;
+  secret: null | string;
 }
 
 export interface Alert {
diff --git a/src/containers/internal/views/speech-services/form.tsx b/src/containers/internal/views/speech-services/form.tsx
index d5719f9..f107067 100644
--- a/src/containers/internal/views/speech-services/form.tsx
+++ b/src/containers/internal/views/speech-services/form.tsx
@@ -22,6 +22,7 @@ import {
   VENDOR_AWS,
   VENDOR_GOOGLE,
   VENDOR_MICROSOFT,
+  VENDOR_NUANCE,
   VENDOR_WELLSAID,
 } from "src/vendor";
 import { MSG_REQUIRED_FIELDS } from "src/constants";
@@ -51,6 +52,8 @@ export const SpeechServiceForm = ({ credential }: SpeechServiceFormProps) => {
   const [apiKey, setApiKey] = useState("");
   const [accessKeyId, setAccessKeyId] = useState("");
   const [secretAccessKey, setSecretAccessKey] = useState("");
+  const [clientId, setClientId] = useState("");
+  const [secretKey, setSecretKey] = useState("");
   const [googleServiceKey, setGoogleServiceKey] =
     useState<GoogleServiceKey | null>(null);
   const [useCustomTts, setUseCustomTts] = useState(false);
@@ -137,6 +140,8 @@ export const SpeechServiceForm = ({ credential }: SpeechServiceFormProps) => {
             vendor === VENDOR_MICROSOFT || vendor === VENDOR_WELLSAID
               ? apiKey
               : null,
+          client_id: vendor === VENDOR_NUANCE ? clientId : null,
+          secret: vendor === VENDOR_NUANCE ? secretKey : null,
         })
           .then(({ json }) => {
             toastSuccess("Speech credential created successfully");
@@ -195,6 +200,14 @@ export const SpeechServiceForm = ({ credential }: SpeechServiceFormProps) => {
         setRegion(credential.data.aws_region);
       }
 
+      if (credential.data.client_id) {
+        setClientId(credential.data.client_id);
+      }
+
+      if (credential.data.secret) {
+        setSecretKey(credential.data.secret);
+      }
+
       setUseCustomTts(credential.data.use_custom_tts > 0 ? true : false);
       setUseCustomStt(credential.data.use_custom_stt > 0 ? true : false);
       setCustomTtsEndpoint(credential.data.custom_tts_endpoint || "");
@@ -304,6 +317,35 @@ export const SpeechServiceForm = ({ credential }: SpeechServiceFormProps) => {
             )}
           </>
         )}
+        {vendor === VENDOR_NUANCE && (
+          <fieldset>
+            <label htmlFor="nuance_client_id">
+              Client ID<span>*</span>
+            </label>
+            <input
+              id="nuance_client_id"
+              required
+              type="text"
+              name="nuance_client_id"
+              placeholder="Client ID"
+              value={clientId}
+              onChange={(e) => setClientId(e.target.value)}
+              disabled={credential ? true : false}
+            />
+            <label htmlFor="nuance_secret">
+              Secret<span>*</span>
+            </label>
+            <Passwd
+              id="nuance_secret"
+              required
+              name="nuance_secret"
+              placeholder="Secret Key"
+              value={secretKey ? getObscuredSecret(secretKey) : secretKey}
+              onChange={(e) => setSecretKey(e.target.value)}
+              disabled={credential ? true : false}
+            />
+          </fieldset>
+        )}
         {vendor === VENDOR_AWS && (
           <fieldset>
             <label htmlFor="aws_access_key">
diff --git a/src/containers/internal/views/speech-services/utils.ts b/src/containers/internal/views/speech-services/utils.ts
index 9d3f2e0..9524cfe 100644
--- a/src/containers/internal/views/speech-services/utils.ts
+++ b/src/containers/internal/views/speech-services/utils.ts
@@ -38,8 +38,12 @@ export const getStatus = (
       cred.use_for_stt &&
       testResult.tts.status === CRED_OK &&
       testResult.stt.status === CRED_OK) ||
-    (cred.use_for_tts && testResult.tts.status === CRED_OK) ||
-    (cred.use_for_stt && testResult.stt.status === CRED_OK)
+    (cred.use_for_tts &&
+      testResult.tts.status === CRED_OK &&
+      testResult.stt.status === CRED_NOT_TESTED) ||
+    (cred.use_for_stt &&
+      testResult.stt.status === CRED_OK &&
+      testResult.tts.status === CRED_NOT_TESTED)
   ) {
     return CRED_OK;
   }
diff --git a/src/vendor/index.tsx b/src/vendor/index.tsx
index 789f03d..3637325 100644
--- a/src/vendor/index.tsx
+++ b/src/vendor/index.tsx
@@ -13,6 +13,7 @@ export const VENDOR_GOOGLE = "google";
 export const VENDOR_AWS = "aws";
 export const VENDOR_MICROSOFT = "microsoft";
 export const VENDOR_WELLSAID = "wellsaid";
+export const VENDOR_NUANCE = "nuance";
 
 export const vendors: VendorOptions[] = [
   {
@@ -31,6 +32,10 @@ export const vendors: VendorOptions[] = [
     name: "WellSaid",
     value: VENDOR_WELLSAID,
   },
+  {
+    name: "Nuance",
+    value: VENDOR_NUANCE,
+  },
 ];
 
 export const useRegionVendors = () => {
@@ -72,19 +77,23 @@ export const useSpeechVendors = () => {
       import("./speech-recognizer/aws-speech-recognizer-lang"),
       import("./speech-recognizer/google-speech-recognizer-lang"),
       import("./speech-recognizer/ms-speech-recognizer-lang"),
+      import("./speech-recognizer/nuance-speech-recognizer-lang"),
       import("./speech-synthesis/aws-speech-synthesis-lang"),
       import("./speech-synthesis/google-speech-synthesis-lang"),
       import("./speech-synthesis/ms-speech-synthesis-lang"),
       import("./speech-synthesis/wellsaid-speech-synthesis-lang"),
+      import("./speech-synthesis/nuance-speech-synthesis-lang"),
     ]).then(
       ([
         { default: awsRecognizer },
         { default: googleRecognizer },
         { default: msRecognizer },
+        { default: nuanceRecognizer },
         { default: awsSynthesis },
         { default: googleSynthesis },
         { default: msSynthesis },
         { default: wellsaidSynthesis },
+        { default: nuanceSynthesis },
       ]) => {
         if (!ignore) {
           setSpeech({
@@ -93,11 +102,13 @@ export const useSpeechVendors = () => {
               google: googleSynthesis,
               microsoft: msSynthesis,
               wellsaid: wellsaidSynthesis,
+              nuance: nuanceSynthesis,
             },
             recognizers: {
               aws: awsRecognizer,
               google: googleRecognizer,
               microsoft: msRecognizer,
+              nuance: nuanceRecognizer,
             },
           });
         }
diff --git a/src/vendor/speech-recognizer/nuance-speech-recognizer-lang.ts b/src/vendor/speech-recognizer/nuance-speech-recognizer-lang.ts
new file mode 100644
index 0000000..b5a6c2a
--- /dev/null
+++ b/src/vendor/speech-recognizer/nuance-speech-recognizer-lang.ts
@@ -0,0 +1,211 @@
+import type { Language } from "../types";
+
+export const languages: Language[] = [
+  {
+    name: "Arabic (Worldwide)",
+    code: "ar-WW",
+    codeMix: "ara-XWW",
+  },
+  {
+    name: "Catalan (Spain)",
+    code: "ca-ES",
+    codeMix: "cat-ESP",
+  },
+  {
+    name: "Croatian (Croatia)",
+    code: "hr-HR",
+    codeMix: "hrv-HRV",
+  },
+  {
+    name: "Czech (Czech Republic)",
+    code: "cs-CZ",
+    codeMix: "ces-CZE",
+  },
+  {
+    name: "Danish (Denmark)",
+    code: "da-DK",
+    codeMix: "dan-DNK",
+  },
+  {
+    name: "Dutch (Netherlands)",
+    code: "nl-NL",
+    codeMix: "nld-NLD",
+  },
+  {
+    name: "English (Australia)",
+    code: "en-AU",
+    codeMix: "eng-AUS",
+  },
+  {
+    name: "English (United States)",
+    code: "en-US",
+    codeMix: "eng-USA",
+  },
+  {
+    name: "English (India)",
+    code: "en-IN",
+    codeMix: "eng-IND",
+  },
+  {
+    name: "English (United Kingdom)",
+    code: "en-GB",
+    codeMix: "eng-GBR",
+  },
+  {
+    name: "Finnish (Finland)",
+    code: "fi-FI",
+    codeMix: "fin-FIN",
+  },
+  {
+    name: "French (Canada)",
+    code: "fr-CA",
+    codeMix: "fra-CAN",
+  },
+  {
+    name: "French (France)",
+    code: "fr-FR",
+    codeMix: "fra-FRA",
+  },
+  {
+    name: "German (Germany)",
+    code: "de-DE",
+    codeMix: "deu-DEU",
+  },
+  {
+    name: "Greek (Greece)",
+    code: "el-GR",
+    codeMix: "ell-GRC",
+  },
+  {
+    name: "Hebrew (Israel)",
+    code: "he-IL",
+    codeMix: "heb-ISR",
+  },
+  {
+    name: "Hindi (India)",
+    code: "hi-IN",
+    codeMix: "hin-IND",
+  },
+  {
+    name: "Hungarian (Hungary)",
+    code: "hu-HU",
+    codeMix: "hun-HUN",
+  },
+  {
+    name: "Indonesian (Indonesia)",
+    code: "id-ID",
+    codeMix: "ind-IDN",
+  },
+  {
+    name: "Italian (Italy)",
+    code: "it-IT",
+    codeMix: "ita-ITA",
+  },
+  {
+    name: "Japanese (Japan)",
+    code: "ja-JP",
+    codeMix: "jpn-JPN",
+  },
+  {
+    name: "Korean (South Korea)",
+    code: "ko-KR",
+    codeMix: "kor-KOR",
+  },
+  {
+    name: "Malay (Malaysia)",
+    code: "ms-MY",
+    codeMix: "zlm-MYS",
+  },
+  {
+    name: "Norwegian (Norway)",
+    code: "no-NO",
+    codeMix: "nor-NOR",
+  },
+  {
+    name: "Polish (Poland)",
+    code: "pl-PL",
+    codeMix: "pol-POL",
+  },
+  {
+    name: "Portuguese (Brazil)",
+    code: "pt-BR",
+    codeMix: "por-BRA",
+  },
+  {
+    name: "Portuguese (Portugal)",
+    code: "pt-PT",
+    codeMix: "por-PRT",
+  },
+  {
+    name: "Romanian (Romania)",
+    code: "ro-RO",
+    codeMix: "ron-ROU",
+  },
+  {
+    name: "Russian (Russia)",
+    code: "ru-RU",
+    codeMix: "rus-RUS",
+  },
+  {
+    name: "Shanghainese (China)",
+    code: "zh-WU",
+    codeMix: "wuu-CHN",
+  },
+  {
+    name: "Mandarin (China)",
+    code: "zh-CN",
+    codeMix: "cmn-CHN",
+  },
+  {
+    name: "Slovak (Slovakia)",
+    code: "sk-SK",
+    codeMix: "slk-SVK",
+  },
+  {
+    name: "Spanish (Spain)",
+    code: "es-ES",
+    codeMix: "spa-ESP",
+  },
+  {
+    name: "Spanish (Latin America)",
+    code: "es-US",
+    codeMix: "spa-XLA",
+  },
+  {
+    name: "Swedish (Sweden)",
+    code: "sv-SE",
+    codeMix: "swe-SWE",
+  },
+  {
+    name: "Thai (Thailand)",
+    code: "th-TH",
+    codeMix: "tha-THA",
+  },
+  {
+    name: "Cantonese (Hong Kong)",
+    code: "cn-HK",
+    codeMix: "yue-CHS",
+  },
+  {
+    name: "Mandarin (Taiwan)",
+    code: "zh-TW",
+    codeMix: "cmn-TWN",
+  },
+  {
+    name: "Turkish (Turkey)",
+    code: "tr-TR",
+    codeMix: "tur-TUR",
+  },
+  {
+    name: "Ukrainian (Ukraine)",
+    code: "uk-UA",
+    codeMix: "ukr-UKR",
+  },
+  {
+    name: "Vietnamese (Vietnam)",
+    code: "vi-VN",
+    codeMix: "vie-VNM",
+  },
+];
+
+export default languages;
diff --git a/src/vendor/speech-synthesis/nuance-speech-synthesis-lang.ts b/src/vendor/speech-synthesis/nuance-speech-synthesis-lang.ts
new file mode 100644
index 0000000..398634c
--- /dev/null
+++ b/src/vendor/speech-synthesis/nuance-speech-synthesis-lang.ts
@@ -0,0 +1,962 @@
+import type { VoiceLanguage } from "../types";
+
+export const languages: VoiceLanguage[] = [
+  {
+    code: "ar-WW",
+    name: "Arabic (Worldwide)",
+    voices: [
+      {
+        value: "Laila - standard",
+        name: "Laila (standard)",
+        model: "standard",
+      },
+      {
+        value: "Tarik - standard",
+        name: "Tarik (standard)",
+        model: "standard",
+      },
+      {
+        value: "Miriam - standard",
+        name: "Miriam (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "eu-ES",
+    name: "Basque (Spain)",
+    voices: [{ value: "Miren", name: "Miren (standard)", model: "standard" }],
+  },
+  {
+    code: "bn-IN",
+    name: "Bengali (India)",
+    voices: [
+      { value: "Paya - standard", name: "Paya (standard)", model: "standard" },
+    ],
+  },
+  {
+    code: "bho-IN",
+    name: "Bhojpuri (India)",
+    voices: [
+      { value: "Jaya - standard", name: "Jaya (standard)", model: "standard" },
+    ],
+  },
+  {
+    code: "bg-BG",
+    name: "Bulgarian (Bulgaria)",
+    voices: [
+      {
+        value: "Daria - standard",
+        name: "Daria (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "yue-HK",
+    name: "Cantonese (Hong Kong)",
+    voices: [
+      {
+        value: "Sinji-Ml - standard",
+        name: "Sinji-Ml (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "ca-ES",
+    name: "Catalan (Spain)",
+    voices: [
+      {
+        value: "Jordi - standard",
+        name: "Jordi (standard)",
+        model: "standard",
+      },
+      {
+        value: "Montserrat - standard",
+        name: "Montserrat (standard)",
+        model: "enhanced",
+      },
+    ],
+  },
+  {
+    code: "yue-HK",
+    name: "Croatian (Croatia)",
+    voices: [
+      { value: "Lana - standard", name: "Lana (standard)", model: "standard" },
+    ],
+  },
+  {
+    code: "cs-CZ",
+    name: "Czech (Czech Republic)",
+    voices: [
+      {
+        value: "Iveta - standard",
+        name: "Iveta (standard)",
+        model: "standard",
+      },
+      {
+        value: "Zuzana - standard",
+        name: "Zuzana (standard)",
+        model: "standard",
+      },
+      {
+        value: "Zuzana-ml - enhanced",
+        name: "Zuzana (enhanced)",
+        model: "enhanced",
+      },
+    ],
+  },
+  {
+    code: "da-DK",
+    name: "Danish (Denmark)",
+    voices: [
+      {
+        value: "Magnus - standard",
+        name: "Magnus (standard)",
+        model: "standard",
+      },
+      { value: "Sara - standard", name: "Sara (standard)", model: "standard" },
+    ],
+  },
+  {
+    code: "nl-BE",
+    name: "Dutch (Belgium)",
+    voices: [
+      {
+        value: "Ellen - standard",
+        name: "Ellen (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "nl-NL",
+    name: "Dutch (Belgium)",
+    voices: [
+      {
+        value: "Claire-Ml - standard",
+        name: "Claire-Ml (standard)",
+        model: "standard",
+      },
+      {
+        value: "Xander - standard",
+        name: "Xander (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "en-AU",
+    name: "English (Australia)",
+    voices: [
+      {
+        value: "Karen - standard",
+        name: "Karen (standard)",
+        model: "standard",
+      },
+      { value: "Lee - standard", name: "Lee (standard)", model: "standard" },
+      {
+        value: "Matilda - enhanced",
+        name: "Matilda (enhanced)",
+        model: "enhanced",
+      },
+    ],
+  },
+  {
+    code: "en-IN",
+    name: "English (India)",
+    voices: [
+      {
+        value: "Isha-Ml - enhanced",
+        name: "Isha-Ml (enhanced)",
+        model: "enhanced",
+      },
+      {
+        value: "Rishi - standard",
+        name: "Rishi (standard)",
+        model: "standard",
+      },
+      {
+        value: "Rishi-Ml - standard",
+        name: "Rishi-Ml (standard)",
+        model: "standard",
+      },
+      {
+        value: "Sangeeta - standard",
+        name: "Sangeeta (standard)",
+        model: "standard",
+      },
+      {
+        value: "Veena - standard",
+        name: "Veena (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "en-IE",
+    name: "English (Ireland)",
+    voices: [
+      {
+        value: "Moira - standard",
+        name: "Moira (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "en-SC",
+    name: "English (Scotland)",
+    voices: [
+      {
+        value: "Fiona - standard",
+        name: "Fiona (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "en-ZA",
+    name: "English (South Africa)",
+    voices: [
+      {
+        value: "Tessa - standard",
+        name: "Tessa (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "en-GB",
+    name: "English (United Kingdom)",
+    voices: [
+      {
+        value: "Daniel - standard",
+        name: "Daniel (standard)",
+        model: "standard",
+      },
+      { value: "Kate - standard", name: "Kate (standard)", model: "standard" },
+      {
+        value: "Malcolm - standard",
+        name: "Malcolm (standard)",
+        model: "standard",
+      },
+      {
+        value: "Oliver - standard",
+        name: "Oliver (standard)",
+        model: "standard",
+      },
+      {
+        value: "Serena - enhanced",
+        name: "Serena (enhanced)",
+        model: "enhanced",
+      },
+      {
+        value: "Simon - standard",
+        name: "Simon (standard)",
+        model: "standard",
+      },
+      {
+        value: "Stephanie - standard",
+        name: "Stephanie (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "en-US",
+    name: "English (United States)",
+    voices: [
+      {
+        value: "Allison - standard",
+        name: "Allison (standard)",
+        model: "standard",
+      },
+      {
+        value: "Ava-Ml - enhanced",
+        name: "Ava-Ml (enhanced)",
+        model: "enhanced",
+      },
+      {
+        value: "Chloe - standard",
+        name: "Chloe (standard)",
+        model: "standard",
+      },
+      { value: "Evan - enhanced", name: "Evan (enhanced)", model: "enhanced" },
+      {
+        value: "Nathan - enhanced",
+        name: "Nathan (enhanced)",
+        model: "enhanced",
+      },
+      {
+        value: "Evelyn - standard",
+        name: "Evelyn (standard)",
+        model: "standard",
+      },
+      {
+        value: "Nolan - standard",
+        name: "Nolan (standard)",
+        model: "standard",
+      },
+      {
+        value: "Samantha - standard",
+        name: "Samantha (standard)",
+        model: "standard",
+      },
+      {
+        value: "Susan - standard",
+        name: "Susan (standard)",
+        model: "standard",
+      },
+      { value: "Tom - standard", name: "Tom (standard)", model: "standard" },
+      {
+        value: "Zoe-Ml - enhanced",
+        name: "Zoe-Ml (enhanced)",
+        model: "enhanced",
+      },
+    ],
+  },
+  {
+    code: "fi-FI",
+    name: "Finnish (Finland)",
+    voices: [
+      { value: "Onni - standard", name: "Onni (standard)", model: "standard" },
+      { value: "Satu - standard", name: "Satu (standard)", model: "standard" },
+    ],
+  },
+  {
+    code: "fr-BE",
+    name: "French (Belgium)",
+    voices: [
+      { value: "Aude - standard", name: "Aude (standard)", model: "standard" },
+    ],
+  },
+  {
+    code: "fr-CA",
+    name: "French (Canada)",
+    voices: [
+      {
+        value: "Amelie-Ml - enhanced",
+        name: "Amelie-Ml (enhanced)",
+        model: "enhanced",
+      },
+      {
+        value: "Chantal - standard",
+        name: "Chantal (standard)",
+        model: "standard",
+      },
+      {
+        value: "Nicolas - standard",
+        name: "Nicolas (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "fr-FR",
+    name: "French (France)",
+    voices: [
+      {
+        value: "Audrey-Ml - enhanced",
+        name: "Audrey-Ml (enhanced)",
+        model: "enhanced",
+      },
+      {
+        value: "Aurelie - standard",
+        name: "Aurelie (standard)",
+        model: "standard",
+      },
+      {
+        value: "Thomas - standard",
+        name: "Thomas (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "gl-ES",
+    name: "Galician (Spain)",
+    voices: [
+      {
+        value: "Carmela - standard",
+        name: "Carmela (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "de-DE",
+    name: "German (Germany)",
+    voices: [
+      {
+        value: "Anna-Ml - enhanced",
+        name: "Anna-Ml (enhanced)",
+        model: "enhanced",
+      },
+      {
+        value: "Markus - standard",
+        name: "Markus (standard)",
+        model: "standard",
+      },
+      {
+        value: "Petra-Ml - enhanced",
+        name: "Petra-Ml (enhanced)",
+        model: "enhanced",
+      },
+      {
+        value: "Viktor - standard",
+        name: "Viktor (standard)",
+        model: "standard",
+      },
+      {
+        value: "Yannick - standard",
+        name: "Yannick (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "el-GR",
+    name: "Greek (Greece)",
+    voices: [
+      {
+        value: "Melina - standard",
+        name: "Melina (standard)",
+        model: "standard",
+      },
+      {
+        value: "Nikos - standard",
+        name: "Nikos (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "he-IL",
+    name: "Hebrew (Israel)",
+    voices: [
+      {
+        value: "Carmit - standard",
+        name: "Carmit (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "hi-IN",
+    name: "Hindi (India)",
+    voices: [
+      {
+        value: "Kiyara-Ml - enhanced",
+        name: "Kiyara-Ml (enhanced)",
+        model: "enhanced",
+      },
+      {
+        value: "Lekha - standard",
+        name: "Lekha (standard)",
+        model: "standard",
+      },
+      { value: "neel - standard", name: "Neel (standard)", model: "standard" },
+      {
+        value: "Neel-Ml - standard",
+        name: "Neel-Ml (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "hu-HU",
+    name: "Hungarian (Hungary)",
+    voices: [
+      {
+        value: "Mariska - standard",
+        name: "Mariska (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "id-ID",
+    name: "Indonesian (Indonesia)",
+    voices: [
+      {
+        value: "Damayanti - standard",
+        name: "Damayanti (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "it-IT",
+    name: "Italian (Italy)",
+    voices: [
+      { value: "Emma - enhanced", name: "Emma (enhanced)", model: "enhanced" },
+      {
+        value: "Federica-Ml - standard",
+        name: "Federica-Ml (standard)",
+        model: "standard",
+      },
+      { value: "Luca - standard", name: "Luca (standard)", model: "standard" },
+      {
+        value: "Neel-Ml - standard",
+        name: "Neel-Ml (standard)",
+        model: "standard",
+      },
+      {
+        value: "Paola - standard",
+        name: "Paola (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "ja-JP",
+    name: "Japanese (Japan)",
+    voices: [
+      {
+        value: "Ayane - standard",
+        name: "Ayane (standard)",
+        model: "standard",
+      },
+      {
+        value: "Daisuke - standard",
+        name: "Daisuke (standard)",
+        model: "standard",
+      },
+      {
+        value: "Ichiro - standard",
+        name: "Ichiro (standard)",
+        model: "standard",
+      },
+      {
+        value: "Koharu - standard",
+        name: "Koharu (standard)",
+        model: "standard",
+      },
+      {
+        value: "Kyoko - standard",
+        name: "Kyoko (standard)",
+        model: "standard",
+      },
+      {
+        value: "Mizuki - standard",
+        name: "Mizuki (standard)",
+        model: "standard",
+      },
+      {
+        value: "Otoya - standard",
+        name: "Otoya (standard)",
+        model: "standard",
+      },
+      {
+        value: "Sakura - standard",
+        name: "Sakura (standard)",
+        model: "standard",
+      },
+      {
+        value: "Seiji - standard",
+        name: "Seiji (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "kn-IN",
+    name: "Kannada (India)",
+    voices: [
+      {
+        value: "Alpana - standard",
+        name: "Alpana (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "ko-KR",
+    name: "Korean (South Korea)",
+    voices: [
+      { value: "Jina - enhanced", name: "Jina (enhanced)", model: "enhanced" },
+      { value: "Sora - standard", name: "Sora (standard)", model: "standard" },
+      { value: "Yuna - standard", name: "Yuna (standard)", model: "standard" },
+      {
+        value: "Yuna-Ml - enhanced",
+        name: "Yuna-Ml (enhanced)",
+        model: "enhanced",
+      },
+    ],
+  },
+  {
+    code: "zlm-MY",
+    name: "Malay (Malaysia)",
+    voices: [
+      {
+        value: "Amira - standard",
+        name: "Amira (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "zh-CN",
+    name: "Mandarin (China)",
+    voices: [
+      {
+        value: "Lili-Ml - enhanced",
+        name: "Lili-Ml (enhanced)",
+        model: "enhanced",
+      },
+      {
+        value: "Binbin-Ml - standard",
+        name: "Binbin-Ml (standard)",
+        model: "standard",
+      },
+      {
+        value: "Lilian-Ml - standard",
+        name: "Lilian-Ml (standard)",
+        model: "standard",
+      },
+      {
+        value: "Lisheng-Ml - standard",
+        name: "Lisheng-Ml (standard)",
+        model: "standard",
+      },
+      {
+        value: "Tiantian-Ml - standard",
+        name: "Tiantian-Ml (standard)",
+        model: "standard",
+      },
+      {
+        value: "Tingting-Ml - standard",
+        name: "Tingting-Ml (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "cmn-TW",
+    name: "Mandarin (Taiwan)",
+    voices: [
+      {
+        value: "Meijia-Ml - standard",
+        name: "Meijia-Ml (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "mr-IN",
+    name: "Marathi (India)",
+    voices: [
+      {
+        value: "Ananya - standard",
+        name: "Ananya (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "nb-NO",
+    name: "Norwegian Bokmål (Norway)",
+    voices: [
+      {
+        value: "Henrik - standard",
+        name: "Henrik (standard)",
+        model: "standard",
+      },
+      { value: "Nora - standard", name: "Nora (standard)", model: "standard" },
+    ],
+  },
+  {
+    code: "pl-PL",
+    name: "Polish (Poland)",
+    voices: [
+      { value: "Ewa - enhanced", name: "Ewa (enhanced)", model: "enhanced" },
+      {
+        value: "Krzysztof - standard",
+        name: "Krzysztof (standard)",
+        model: "standard",
+      },
+      {
+        value: "Zosia - standard",
+        name: "Zosia (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "pt-BR",
+    name: "Portuguese (Brazil)",
+    voices: [
+      {
+        value: "luciana - enhanced",
+        name: "Luciana (enhanced)",
+        model: "enhanced",
+      },
+      {
+        value: "Fernanda - standard",
+        name: "Fernanda (standard)",
+        model: "standard",
+      },
+      {
+        value: "Felipe - standard",
+        name: "Felipe (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "pt-PT",
+    name: "Portuguese (Portugal)",
+    voices: [
+      {
+        value: "Catarina - standard",
+        name: "Catarina (standard)",
+        model: "standard",
+      },
+      {
+        value: "Joana - standard",
+        name: "Joana (standard)",
+        model: "standard",
+      },
+      {
+        value: "Joaquim - standard",
+        name: "Joaquim (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "ro-RO",
+    name: "Romanian (Romania)",
+    voices: [
+      {
+        value: "Ioana - standard",
+        name: "Ioana (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "ru-RU",
+    name: "Russian (Russia)",
+    voices: [
+      {
+        value: "Katya - standard",
+        name: "Katya (standard)",
+        model: "standard",
+      },
+      {
+        value: "Katya-Ml - standard",
+        name: "Katya-Ml (standard)",
+        model: "standard",
+      },
+      {
+        value: "Milena - standard",
+        name: "Milena (standard)",
+        model: "standard",
+      },
+      { value: "yuri - standard", name: "Yuri (standard)", model: "standard" },
+    ],
+  },
+  {
+    code: "sk-SK",
+    name: "Slovak (Slovakia)",
+    voices: [
+      {
+        value: "Laura - standard",
+        name: "Laura (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "es-AR",
+    name: "Spanish (Argentina)",
+    voices: [
+      {
+        value: "Diego - standard",
+        name: "Diego (standard)",
+        model: "standard",
+      },
+      {
+        value: "Isabela - standard",
+        name: "Isabela (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "es-CL",
+    name: "Spanish (Chile)",
+    voices: [
+      {
+        value: "Francisca - standard",
+        name: "Francisca (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "es-CO",
+    name: "Spanish (Colombia)",
+    voices: [
+      {
+        value: "Carlos - standard",
+        name: "Carlos (standard)",
+        model: "standard",
+      },
+      {
+        value: "Soledad - standard",
+        name: "Soledad (standard)",
+        model: "standard",
+      },
+      {
+        value: "Ximena - standard",
+        name: "Ximena (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "es-MX",
+    name: "Spanish (Mexico)",
+    voices: [
+      {
+        value: "Angelica - standard",
+        name: "Angelica (standard)",
+        model: "standard",
+      },
+      {
+        value: "Javier - standard",
+        name: "Javier (standard)",
+        model: "standard",
+      },
+      { value: "Juan - standard", name: "Juan (standard)", model: "standard" },
+      {
+        value: "Paulina-Ml - enhanced",
+        name: "Paulina-Ml (enhanced)",
+        model: "enhanced",
+      },
+    ],
+  },
+  {
+    code: "es-ES",
+    name: "Spanish (Spain)",
+    voices: [
+      {
+        value: "Jorge - standard",
+        name: "Jorge (standard)",
+        model: "standard",
+      },
+      {
+        value: "Marisol-Ml - standard",
+        name: "Marisol-Ml (standard)",
+        model: "standard",
+      },
+      {
+        value: "Monica-Ml - standard",
+        name: "Monica-Ml (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "sv-SE",
+    name: "Swedish (Sweden)",
+    voices: [
+      { value: "Alva - standard", name: "Alva (standard)", model: "standard" },
+      {
+        value: "Klara - standard",
+        name: "Klara (standard)",
+        model: "standard",
+      },
+      {
+        value: "Oskar - standard",
+        name: "Oskar (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "ta-IN",
+    name: "Tamil (India)",
+    voices: [
+      { value: "Vani - standard", name: "Vani (standard)", model: "standard" },
+    ],
+  },
+  {
+    code: "te-IN",
+    name: "Telugu (India)",
+    voices: [
+      {
+        value: "Geeta - standard",
+        name: "Geeta (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "th-TH",
+    name: "Thai (Thailand)",
+    voices: [
+      {
+        value: "Kanya - enhanced",
+        name: "Kanya (enhanced)",
+        model: "enhanced",
+      },
+      {
+        value: "Narisa - standard",
+        name: "Narisa (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "tr-TR",
+    name: "Turkish (Turkey)",
+    voices: [
+      {
+        value: "Cem-Ml - standard",
+        name: "Cem-Ml (standard)",
+        model: "standard",
+      },
+      {
+        value: "Yelda - standard",
+        name: "Yelda (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "uk-UA",
+    name: "Ukrainian (Ukraine)",
+    voices: [
+      {
+        value: "Lesya - standard",
+        name: "Lesya (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "va-ES",
+    name: "Valencian (Spain)",
+    voices: [
+      {
+        value: "Empar - standard",
+        name: "Empar (standard)",
+        model: "standard",
+      },
+    ],
+  },
+  {
+    code: "vi-VN",
+    name: "Vietnamese (Vietnam)",
+    voices: [
+      { value: "Linh - standard", name: "Linh (standard)", model: "standard" },
+    ],
+  },
+];
+
+export default languages;
diff --git a/src/vendor/types.ts b/src/vendor/types.ts
index 294488f..62be6f5 100644
--- a/src/vendor/types.ts
+++ b/src/vendor/types.ts
@@ -1,4 +1,4 @@
-export type Vendor = "Google" | "AWS" | "Microsoft" | "WellSaid";
+export type Vendor = "Google" | "AWS" | "Microsoft" | "WellSaid" | "Nuance";
 
 export interface VendorOptions {
   name: Vendor;
@@ -13,11 +13,13 @@ export interface Region {
 export interface Voice {
   name: string;
   value: string;
+  model?: "standard" | "enhanced";
 }
 
 export interface Language {
   name: string;
   code: string;
+  codeMix?: string;
 }
 
 export interface VoiceLanguage extends Language {
@@ -47,6 +49,7 @@ export interface RecognizerVendors {
   aws: Language[];
   google: Language[];
   microsoft: Language[];
+  nuance: Language[];
 }
 
 export interface SynthesisVendors {
@@ -54,6 +57,7 @@ export interface SynthesisVendors {
   google: VoiceLanguage[];
   microsoft: VoiceLanguage[];
   wellsaid: VoiceLanguage[];
+  nuance: VoiceLanguage[];
 }
 
 export interface MSRawSpeech {