Voices and languages

Every synthesis request names a voice through the voice field. Voices differ in dialect, timbre, apparent age, and delivery style, the choice sets the character of the output more than any other parameter.

{
  "text": "أهلاً بك في فوهو",
  "voice": "layla",
  "model": "sada-1"
}

Fetch the catalog programmatically with GET /v1/voices so your application stays current as voices are added.

Arabic voices

The core of the catalog. Najdi leads because it is the accent this product is built around.

Najdi, Saudi Arabia

Voice	Gender	Age	Styles	Description
`layla`	Female	18–30	Professional, Formal	Warm Najdi delivery. The default for inbound reception and appointment setting.
`nouf`	Female	30–50	Professional	Measured and senior. Suits collections, escalations, and compliance scripts.
`faisal`	Male	30–50	Professional, Formal	Even, authoritative Najdi. Reads long policy text without fatiguing the listener.
`omar`	Male	18–30	Casual, Energetic	Bright and quick. Built for outbound offers and short confirmations.

Hijazi, Saudi Arabia

The west coast register: Jeddah, Makkah and Madinah. A Jeddah caller hears a Najdi agent as out of town, so a west coast line should answer in Hijazi.

Voice	Gender	Age	Styles	Description
`salma`	Female	18–30	Professional, Casual	The everyday Jeddah register. Warm and unhurried, the west coast counterpart to `layla`.
`rawan`	Female	18–30	Casual, Energetic	Lighter and quicker. Retail, delivery and short confirmations.
`hisham`	Male	30–50	Professional, Formal	Steady, with a formal edge. Banking, insurance and anything read from a policy.
`tariq`	Male	18–30	Casual	Relaxed. Reception, bookings and outbound follow-ups.

Omani, Oman

Muscat and the interior. Omani is neither Saudi nor Emirati, and the words give it away.

Voice	Gender	Age	Styles	Description
`maryam`	Female	30–50	Professional, Formal	Measured and clear. Journey management, marine and contractor lines.
`salim`	Male	30–50	Professional, Casual	Warm and unhurried. Fleet card, retail and customer lines.

The voice carries the sound. The words carry the dialect. A Najdi agent says الحين, وش and أبشر; a Hijazi one says دحين, إيش and إيوه; an Omani one says شو, زين and ما عليه. Put the dialect in the agent’s instructions as well as choosing the voice.

Gulf, MSA, and Egyptian

Voice	Gender	Age	Locale	Styles	Description
`reem`	Female	18–30	`ar-AE`	Casual, Energetic	Gulf accent with a light, conversational lift.
`khalid`	Male	60+	`ar`	Formal	Modern Standard Arabic, broadcast register. Announcements and IVR trees.
`yousef`	Male	30–50	`ar`	Professional, Formal	Neutral MSA. The safest choice when the caller dialect is unknown.
`maha`	Female	30–50	`ar-EG`	Casual, Professional	Egyptian dialect, unhurried and reassuring.

When you do not know which dialect your callers speak, yousef or khalid in Modern Standard Arabic is the safe default. MSA reads as formal but is understood everywhere; a mismatched regional dialect sounds foreign.

English voices

Voice	Gender	Age	Locale	Styles	Description
`astra`	Female	18–30	`en-US`	Energetic, Formal	Crisp and upbeat. Good for product demos and onboarding flows.
`clementine`	Female	18–30	`en-US`	Formal, Professional	Clear mid-range. The English counterpart to `layla`.
`bancroft`	Male	60+	`en-US`	Formal, Professional	Deep and deliberate. Reads disclosures without sounding rushed.
`cupola`	Male	30–50	`en-US`	Professional, Energetic	Confident sales register without the hard edge.
`vespera`	Female	30–50	`en-GB`	Professional	Composed and precise. Financial services and healthcare scripts.
`marlow`	Male	18–30	`en-GB`	Casual	Relaxed British delivery.

Dialects

Dialect	Filter value	Coverage
Najdi	`najdi`	Central Saudi Arabia, the default for Saudi deployments
Gulf	`gulf`	UAE and wider Gulf
Modern Standard	`msa`	Formal, pan-Arab, understood everywhere
Egyptian	`egyptian`	Egypt and widely understood across the region
Hijazi	`hijazi`	Western Saudi Arabia
Omani	`omani`	Oman

Filter the catalog by any of these:

curl "https://app.voho.ai/v1/voices?dialect=najdi&gender=female" \
  -H "Authorization: Bearer $VOHO_API_KEY"

Styles

Each voice carries one or more delivery styles. Match the style to the line rather than to preference.

Professional

Service desks, support lines, anything where the caller has a problem.

Formal

Government-facing, compliance, disclosures, announcements.

Casual

Everyday conversation, consumer-facing lines.

Energetic

Sales, outbound campaigns, promotions.

Choosing a voice

Service and support lines read better with an unhurried delivery: layla or nouf in Arabic, clementine or vespera in English. Formal and official lines want faisal or khalid. Sales and outbound can carry the pace of omar, astra, or cupola.

Test with callers who speak the way your customers actually speak, not colleagues reading a script. Accent coverage is the most common source of early failures, and it shows up within a handful of real calls.

Auditioning quickly

GET /v1/voices/{id} returns a ready-to-send sample_request in the right language for that voice, post it straight to /v1/speech to hear the voice without writing anything.

curl https://app.voho.ai/v1/voices/layla \
  -H "Authorization: Bearer $VOHO_API_KEY" | jq .sample_request

Getting started

Voices and models

Voice agents

Telephony

Running in production

Platform

On-premise

Partners

Voices and languages

Arabic voices

Najdi, Saudi Arabia

Hijazi, Saudi Arabia

Omani, Oman

Gulf, MSA, and Egyptian

English voices

Dialects

Styles

Professional

Formal

Casual

Energetic

Choosing a voice

Auditioning quickly

​Arabic voices

​Najdi, Saudi Arabia

​Hijazi, Saudi Arabia

​Omani, Oman

​Gulf, MSA, and Egyptian

​English voices

​Dialects

​Styles

Professional

Formal

Casual

Energetic

​Choosing a voice

​Auditioning quickly

Arabic voices

Najdi, Saudi Arabia

Hijazi, Saudi Arabia

Omani, Oman

Gulf, MSA, and Egyptian

English voices

Dialects

Styles

Choosing a voice

Auditioning quickly