Microsoft Azure

Microsoft's Azure platform offers an impressive array of high-quality, multilingual voices in its Neural model.

Languages

Azure Neural voices are interchangeably compatible with all supported languages. Rather than setting language with the language code, simply provide input text in the desired language.

Consult the Azure supported languages resource for an up-to-date list of supported languages.

Configuration

Azure TTS requires the following environment variables:

• AZURE_TTS_KEY - Your Azure Speech Services API key
• AZURE_TTS_HOST - Your Azure region endpoint (e.g., eastus.api.cognitive.microsoft.com)

Consult Azure's authentication documentation for setup instructions.

Voice ID Format

Azure voice IDs conform to the following format:

azure.<voice>

Where <voice> is the full voice code from the table below (e.g., en-US-AvaNeural).

Examples:

azure.en-US-AvaNeural
azure.en-GB-SoniaNeural
azure.de-DE-KatjaNeural
azure.es-ES-ElviraNeural

Note: Azure voice IDs already include language information, so no additional language parameter is needed.

Voice IDs

Voice codes
af-ZA-AdriNeural
af-ZA-WillemNeural
am-ET-MekdesNeural
am-ET-AmehaNeural
ar-AE-FatimaNeural
ar-AE-HamdanNeural
ar-BH-LailaNeural
ar-BH-AliNeural
ar-DZ-AminaNeural
ar-DZ-IsmaelNeural
ar-EG-SalmaNeural
ar-EG-ShakirNeural
ar-IQ-RanaNeural
ar-IQ-BasselNeural
ar-JO-SanaNeural
ar-JO-TaimNeural
ar-KW-NouraNeural
ar-KW-FahedNeural
ar-LB-LaylaNeural
ar-LB-RamiNeural
ar-LY-ImanNeural
ar-LY-OmarNeural
ar-MA-MounaNeural
ar-MA-JamalNeural
ar-OM-AyshaNeural
ar-OM-AbdullahNeural
ar-QA-AmalNeural
ar-QA-MoazNeural
ar-SA-ZariyahNeural
ar-SA-HamedNeural
ar-SY-AmanyNeural
ar-SY-LaithNeural
ar-TN-ReemNeural
ar-TN-HediNeural
ar-YE-MaryamNeural
ar-YE-SalehNeural
as-IN-YashicaNeural
as-IN-PriyomNeural
az-AZ-BanuNeural
az-AZ-BabekNeural
bg-BG-KalinaNeural
bg-BG-BorislavNeural
bn-BD-NabanitaNeural
bn-BD-PradeepNeural
bn-IN-TanishaaNeural
bn-IN-BashkarNeural
bs-BA-VesnaNeural
bs-BA-GoranNeural
ca-ES-JoanaNeural
ca-ES-EnricNeural
ca-ES-AlbaNeural
cs-CZ-VlastaNeural
cs-CZ-AntoninNeural
cy-GB-NiaNeural
cy-GB-AledNeural
da-DK-ChristelNeural
da-DK-JeppeNeural
de-AT-IngridNeural
de-AT-JonasNeural
de-CH-LeniNeural
de-CH-JanNeural
de-DE-KatjaNeural
de-DE-ConradNeural
de-DE-SeraphinaMultilingualNeural
de-DE-FlorianMultilingualNeural
de-DE-AmalaNeural
de-DE-BerndNeural
de-DE-ChristophNeural
de-DE-ElkeNeural
de-DE-GiselaNeural
de-DE-KasperNeural
de-DE-KillianNeural
de-DE-KlarissaNeural
de-DE-KlausNeural
de-DE-LouisaNeural
de-DE-MajaNeural
de-DE-RalfNeural
de-DE-TanjaNeural
el-GR-AthinaNeural
el-GR-NestorasNeural
en-AU-NatashaNeural
en-AU-WilliamNeural
en-AU-AnnetteNeural
en-AU-CarlyNeural
en-AU-DarrenNeural
en-AU-DuncanNeural
en-AU-ElsieNeural
en-AU-FreyaNeural
en-AU-JoanneNeural
en-AU-KenNeural
en-AU-KimNeural
en-AU-NeilNeural
en-AU-TimNeural
en-AU-TinaNeural
en-CA-ClaraNeural
en-CA-LiamNeural
en-GB-SoniaNeural
en-GB-RyanNeural
en-GB-LibbyNeural
en-GB-AdaMultilingualNeural
en-GB-OllieMultilingualNeural
en-GB-AbbiNeural
en-GB-AlfieNeural
en-GB-BellaNeural
en-GB-ElliotNeural
en-GB-EthanNeural
en-GB-HollieNeural
en-GB-MaisieNeural
en-GB-NoahNeural
en-GB-OliverNeural
en-GB-OliviaNeural
en-GB-ThomasNeural
en-GB-MiaNeural
en-HK-YanNeural
en-HK-SamNeural
en-IE-EmilyNeural
en-IE-ConnorNeural
en-IN-AaravNeural
en-IN-AashiNeural
en-IN-AnanyaNeural
en-IN-KavyaNeural
en-IN-KunalNeural
en-IN-NeerjaNeural
en-IN-PrabhatNeural
en-IN-RehaanNeural
en-KE-AsiliaNeural
en-KE-ChilembaNeural
en-NG-EzinneNeural
en-NG-AbeoNeural
en-NZ-MollyNeural
en-NZ-MitchellNeural
en-PH-RosaNeural
en-PH-JamesNeural
en-SG-LunaNeural
en-SG-WayneNeural
en-TZ-ImaniNeural
en-TZ-ElimuNeural
en-US-AvaMultilingualNeural
en-US-AndrewMultilingualNeural
en-US-EmmaMultilingualNeural
en-US-BrianMultilingualNeural
en-US-AvaNeural
en-US-AndrewNeural
en-US-EmmaNeural
en-US-BrianNeural
en-US-JennyNeural
en-US-GuyNeural
en-US-AriaNeural
en-US-DavisNeural
en-US-JaneNeural
en-US-JasonNeural
en-US-KaiNeural
en-US-LunaNeural
en-US-SaraNeural
en-US-TonyNeural
en-US-NancyNeural
en-US-CoraMultilingualNeural
en-US-ChristopherMultilingualNeural
en-US-BrandonMultilingualNeural
en-US-AmberNeural
en-US-AnaNeural
en-US-AshleyNeural
en-US-BrandonNeural
en-US-ChristopherNeural
en-US-CoraNeural
en-US-ElizabethNeural
en-US-EricNeural
en-US-JacobNeural
en-US-JennyMultilingualNeural
en-US-MichelleNeural
en-US-MonicaNeural
en-US-RogerNeural
en-US-RyanMultilingualNeural
en-US-SteffanNeural
en-ZA-LeahNeural
en-ZA-LukeNeural
es-AR-ElenaNeural
es-AR-TomasNeural
es-BO-SofiaNeural
es-BO-MarceloNeural
es-CL-CatalinaNeural
es-CL-LorenzoNeural
es-CO-SalomeNeural
es-CO-GonzaloNeural
es-CR-MariaNeural
es-CR-JuanNeural
es-CU-BelkysNeural
es-CU-ManuelNeural
es-DO-RamonaNeural
es-DO-EmilioNeural
es-EC-AndreaNeural
es-EC-LuisNeural
es-ES-ElviraNeural
es-ES-AlvaroNeural
es-ES-ArabellaMultilingualNeural
es-ES-IsidoraMultilingualNeural
es-ES-TristanMultilingualNeural
es-ES-XimenaMultilingualNeural
es-ES-AbrilNeural
es-ES-ArnauNeural
es-ES-DarioNeural
es-ES-EliasNeural
es-ES-EstrellaNeural
es-ES-IreneNeural
es-ES-LaiaNeural
es-ES-LiaNeural
es-ES-NilNeural
es-ES-SaulNeural
es-ES-TeoNeural
es-ES-TrianaNeural
es-ES-VeraNeural
es-ES-XimenaNeural
es-GQ-TeresaNeural
es-GQ-JavierNeural
es-GT-MartaNeural
es-GT-AndresNeural
es-HN-KarlaNeural
es-HN-CarlosNeural
es-MX-DaliaNeural
es-MX-JorgeNeural
es-MX-BeatrizNeural
es-MX-CandelaNeural
es-MX-CarlotaNeural
es-MX-CecilioNeural
es-MX-GerardoNeural
es-MX-LarissaNeural
es-MX-LibertoNeural
es-MX-LucianoNeural
es-MX-MarinaNeural
es-MX-NuriaNeural
es-MX-PelayoNeural
es-MX-RenataNeural
es-MX-YagoNeural
es-NI-YolandaNeural
es-NI-FedericoNeural
es-PA-MargaritaNeural
es-PA-RobertoNeural
es-PE-CamilaNeural
es-PE-AlexNeural
es-PR-KarinaNeural
es-PR-VictorNeural
es-PY-TaniaNeural
es-PY-MarioNeural
es-SV-LorenaNeural
es-SV-RodrigoNeural
es-US-PalomaNeural
es-US-AlonsoNeural
es-UY-ValentinaNeural
es-UY-MateoNeural
es-VE-PaolaNeural
es-VE-SebastianNeural
et-EE-AnuNeural
et-EE-KertNeural
eu-ES-AinhoaNeural
eu-ES-AnderNeural
fa-IR-DilaraNeural
fa-IR-FaridNeural
fi-FI-SelmaNeural
fi-FI-HarriNeural
fi-FI-NooraNeural
fil-PH-BlessicaNeural
fil-PH-AngeloNeural
fr-BE-CharlineNeural
fr-BE-GerardNeural
fr-CA-SylvieNeural
fr-CA-JeanNeural
fr-CA-AntoineNeural
fr-CA-ThierryNeural
fr-CH-ArianeNeural
fr-CH-FabriceNeural
fr-FR-DeniseNeural
fr-FR-HenriNeural
fr-FR-VivienneMultilingualNeural
fr-FR-RemyMultilingualNeural
fr-FR-LucienMultilingualNeural
fr-FR-AlainNeural
fr-FR-BrigitteNeural
fr-FR-CelesteNeural
fr-FR-ClaudeNeural
fr-FR-CoralieNeural
fr-FR-EloiseNeural
fr-FR-JacquelineNeural
fr-FR-JeromeNeural
fr-FR-JosephineNeural
fr-FR-MauriceNeural
fr-FR-YvesNeural
fr-FR-YvetteNeural
ga-IE-OrlaNeural
ga-IE-ColmNeural
gl-ES-SabelaNeural
gl-ES-RoiNeural
gu-IN-DhwaniNeural
gu-IN-NiranjanNeural
he-IL-HilaNeural
he-IL-AvriNeural
hi-IN-AaravNeural
hi-IN-AnanyaNeural
hi-IN-KavyaNeural
hi-IN-KunalNeural
hi-IN-RehaanNeural
hi-IN-SwaraNeural
hi-IN-MadhurNeural
hr-HR-GabrijelaNeural
hr-HR-SreckoNeural
hu-HU-NoemiNeural
hu-HU-TamasNeural
hy-AM-AnahitNeural
hy-AM-HaykNeural
id-ID-GadisNeural
id-ID-ArdiNeural
is-IS-GudrunNeural
is-IS-GunnarNeural
it-IT-ElsaNeural
it-IT-IsabellaNeural
it-IT-DiegoNeural
it-IT-AlessioMultilingualNeural
it-IT-IsabellaMultilingualNeural
it-IT-GiuseppeMultilingualNeural
it-IT-MarcelloMultilingualNeural
it-IT-BenignoNeural
it-IT-CalimeroNeural
it-IT-CataldoNeural
it-IT-FabiolaNeural
it-IT-FiammaNeural
it-IT-GianniNeural
it-IT-GiuseppeNeural
it-IT-ImeldaNeural
it-IT-IrmaNeural
it-IT-LisandroNeural
it-IT-PalmiraNeural
it-IT-PierinaNeural
it-IT-RinaldoNeural
iu-Cans-CA-SiqiniqNeural
iu-Cans-CA-TaqqiqNeural
iu-Latn-CA-SiqiniqNeural
iu-Latn-CA-TaqqiqNeural
ja-JP-NanamiNeural
ja-JP-KeitaNeural
ja-JP-AoiNeural
ja-JP-DaichiNeural
ja-JP-MayuNeural
ja-JP-NaokiNeural
ja-JP-ShioriNeural
jv-ID-SitiNeural
jv-ID-DimasNeural
ka-GE-EkaNeural
ka-GE-GiorgiNeural
kk-KZ-AigulNeural
kk-KZ-DauletNeural
km-KH-SreymomNeural
km-KH-PisethNeural
kn-IN-SapnaNeural
kn-IN-GaganNeural
ko-KR-SunHiNeural
ko-KR-InJoonNeural
ko-KR-HyunsuMultilingualNeural
ko-KR-BongJinNeural
ko-KR-GookMinNeural
ko-KR-HyunsuNeural
ko-KR-JiMinNeural
ko-KR-SeoHyeonNeural
ko-KR-SoonBokNeural
ko-KR-YuJinNeural
lo-LA-KeomanyNeural
lo-LA-ChanthavongNeural
lt-LT-OnaNeural
lt-LT-LeonasNeural
lv-LV-EveritaNeural
lv-LV-NilsNeural
mk-MK-MarijaNeural
mk-MK-AleksandarNeural
ml-IN-SobhanaNeural
ml-IN-MidhunNeural
mn-MN-YesuiNeural
mn-MN-BataaNeural
mr-IN-AarohiNeural
mr-IN-ManoharNeural
ms-MY-YasminNeural
ms-MY-OsmanNeural
mt-MT-GraceNeural
mt-MT-JosephNeural
my-MM-NilarNeural
my-MM-ThihaNeural
nb-NO-PernilleNeural
nb-NO-FinnNeural
nb-NO-IselinNeural
ne-NP-HemkalaNeural
ne-NP-SagarNeural
nl-BE-DenaNeural
nl-BE-ArnaudNeural
nl-NL-FennaNeural
nl-NL-MaartenNeural
nl-NL-ColetteNeural
or-IN-SubhasiniNeural
or-IN-SukantNeural
pa-IN-OjasNeural
pa-IN-VaaniNeural
pl-PL-AgnieszkaNeural
pl-PL-MarekNeural
pl-PL-ZofiaNeural
ps-AF-LatifaNeural
ps-AF-GulNawazNeural
pt-BR-FranciscaNeural
pt-BR-AntonioNeural
pt-BR-MacerioMultilingualNeural
pt-BR-ThalitaMultilingualNeural
pt-BR-BrendaNeural
pt-BR-DonatoNeural
pt-BR-ElzaNeural
pt-BR-FabioNeural
pt-BR-GiovannaNeural
pt-BR-HumbertoNeural
pt-BR-JulioNeural
pt-BR-LeilaNeural
pt-BR-LeticiaNeural
pt-BR-ManuelaNeural
pt-BR-NicolauNeural
pt-BR-ThalitaNeural
pt-BR-ValerioNeural
pt-BR-YaraNeural
pt-PT-RaquelNeural
pt-PT-DuarteNeural
pt-PT-FernandaNeural
ro-RO-AlinaNeural
ro-RO-EmilNeural
ru-RU-SvetlanaNeural
ru-RU-DmitryNeural
ru-RU-DariyaNeural
si-LK-ThiliniNeural
si-LK-SameeraNeural
sk-SK-ViktoriaNeural
sk-SK-LukasNeural
sl-SI-PetraNeural
sl-SI-RokNeural
so-SO-UbaxNeural
so-SO-MuuseNeural
sq-AL-AnilaNeural
sq-AL-IlirNeural
sr-Latn-RS-NicholasNeural
sr-Latn-RS-SophieNeural
sr-RS-SophieNeural
sr-RS-NicholasNeural
su-ID-TutiNeural
su-ID-JajangNeural
sv-SE-SofieNeural
sv-SE-MattiasNeural
sv-SE-HilleviNeural
sw-KE-ZuriNeural
sw-KE-RafikiNeural
sw-TZ-RehemaNeural
sw-TZ-DaudiNeural
ta-IN-PallaviNeural
ta-IN-ValluvarNeural
ta-LK-SaranyaNeural
ta-LK-KumarNeural
ta-MY-KaniNeural
ta-MY-SuryaNeural
ta-SG-VenbaNeural
ta-SG-AnbuNeural
te-IN-ShrutiNeural
te-IN-MohanNeural
th-TH-PremwadeeNeural
th-TH-NiwatNeural
th-TH-AcharaNeural
tr-TR-EmelNeural
tr-TR-AhmetNeural
uk-UA-PolinaNeural
uk-UA-OstapNeural
ur-IN-GulNeural
ur-IN-SalmanNeural
ur-PK-UzmaNeural
ur-PK-AsadNeural
uz-UZ-MadinaNeural
uz-UZ-SardorNeural
vi-VN-HoaiMyNeural
vi-VN-NamMinhNeural
wuu-CN-XiaotongNeural
wuu-CN-YunzheNeural
yue-CN-XiaoMinNeural
yue-CN-YunSongNeural
zh-CN-XiaoxiaoNeural
zh-CN-YunxiNeural
zh-CN-YunjianNeural
zh-CN-XiaoyiNeural
zh-CN-YunyangNeural
zh-CN-XiaochenNeural
zh-CN-XiaochenMultilingualNeural
zh-CN-XiaohanNeural
zh-CN-XiaomengNeural
zh-CN-XiaomoNeural
zh-CN-XiaoqiuNeural
zh-CN-XiaorouNeural
zh-CN-XiaoruiNeural
zh-CN-XiaoshuangNeural
zh-CN-XiaoxiaoDialectsNeural
zh-CN-XiaoxiaoMultilingualNeural
zh-CN-XiaoyanNeural
zh-CN-XiaoyouNeural
zh-CN-XiaoyuMultilingualNeural
zh-CN-XiaozhenNeural
zh-CN-YunfengNeural
zh-CN-YunhaoNeural
zh-CN-YunjieNeural
zh-CN-YunxiaNeural
zh-CN-YunyeNeural
zh-CN-YunyiMultilingualNeural
zh-CN-YunzeNeural
zh-CN-henan-YundengNeural
zh-CN-liaoning-XiaobeiNeural
zh-CN-shaanxi-XiaoniNeural
zh-CN-shandong-YunxiangNeural
zh-CN-sichuan-YunxiNeural
zh-HK-HiuMaanNeural
zh-HK-WanLungNeural
zh-HK-HiuGaaiNeural
zh-TW-HsiaoChenNeural
zh-TW-YunJheNeural
zh-TW-HsiaoYuNeural
zu-ZA-ThandoNeural
zu-ZA-ThembaNeural

SSML Support

Azure voices support Speech Synthesis Markup Language (SSML) for advanced control over:

• Prosody (pitch, rate, volume)
• Emphasis and breaks
• Phonetic pronunciation
• Multi-language content

Consult Azure's SSML documentation for detailed usage instructions.

---

Examples

Learn how to use Azure voices on the SignalWire platform.

SWML

Use the languages SWML method to set one or more voices for an AI agent.

version: 1.0.0
sections:
  main:
  - ai:
      prompt:
        text: Have an open-ended conversation about flowers.
      languages:
        - name: English
          code: en-US
          voice: azure.en-US-AvaNeural

Alternatively, use the say_voice parameter of the play SWML method to select a voice for basic TTS.

version: 1.0.0
sections:
  main:
  - set:
      say_voice: "azure.en-US-AvaNeural"
  - play: "say:Greetings. This is the Ava voice from Microsoft Azure's Neural text-to-speech model."

RELAY Realtime SDK

// This example uses the Node.js SDK for SignalWire's RELAY Realtime API.
const playback = await call.playTTS({
    text: "Greetings. This is the Ava voice from Microsoft Azure's Neural text-to-speech model.",
    voice: "azure.en-US-AvaNeural",
});
await playback.ended();

Call Flow Builder

Azure voices are not yet supported in Call Flow Builder.

cXML

<?xml version="1.0" encoding="UTF-8"?>
<Response>
<Say voice="azure.en-US-AvaNeural">
    Greetings. This is the Ava voice from Microsoft Azure's Neural text-to-speech model.
</Say>
</Response>