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Italian to Spanish speech translation API

Stream Italian (Italiano) speech and get Spanish (Español) back in real time. One WebSocket, ISO codes it to es, and ultra-low latency for voice agents and live apps.

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Production-ready Italian to Spanish translation API

Real Italian speech includes accents, regional dialects, code switching, and domain-specific vocabulary. Soniox recognizes it in a single model and streams Spanish while the speaker is still talking.

Italian (Indo-European > Romance > Italo-Dalmatian) and Spanish (Indo-European > Romance > Western Romance) come from different language families, so word order and morphology differ. Soniox reorders meaning in-stream instead of word by word.

Soniox preserves formatting in the translated transcript, including names, numbers, addresses, IDs, and domain-specific terms.

A breakthrough in real-time Italian to Spanish translation

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Translate before the sentence ends

Spanish meaning lands as Italian is spoken, not after the caption catches up.

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Directional it to es streaming

Set the source and target codes once. Both arrive in a single labeled token stream.

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High quality Spanish output

Same model across every language, including historically underserved ones.

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Native-speaker Italian STT accuracy

Accurate Spanish translation starts with accurate Italian recognition across accents and language switching.

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Names, numbers, and domain terms

Preserved across the pair, including phone numbers, emails, and IDs.

config.json
{
  "model": "stt-rt-v4",
  "translation": {
    "type": "one_way",
    "source_language": "it",
    "target_language": "es"
  }
}

Italian and Spanish through a single stream

Italian to Spanish translation is built on top of Soniox Speech-to-Text API. Every spoken word is transcribed, and Spanish translation streams mid-sentence in the same labeled token stream.

Turn it on by adding a translation block with source_language: "it" and target_language: "es". It runs on the same WebSocket and the same model, with no extra round trip.

Live Italian to Spanish: written and spoken

Italian to Spanish speech-to-text

micLive Italian speecharrow_right_altsubjectSpanish text

Translate live Italian into written Spanish with the Soniox STT API. Soniox streams the Italian transcript and the Spanish translation as speech happens.

Use it for Spanish captions, subtitles, meeting translation, agent assist, and multilingual transcription.

Italian to Spanish speech-to-speech

micLive Italian speecharrow_right_altvolume_upSpoken Spanish

Build full spoken Italian to Spanish translation by combining Soniox STT and Soniox TTS. Soniox recognizes Italian, translates it, and speaks Spanish with low latency.

Use it for live interpreters, bilingual voice agents, travel assistants, and customer support.

Live Italian to Spanish translation in action

Stream Italian to Spanish one-way to push all speech into Spanish, or two-way to keep a bilingual conversation flowing between the two languages.

voice_selection
Italian speaker says: “Allora ci vediamo dopo la call, davanti alla metro.”
translate
Translated into Spanish in real time.

One-way translation

Translate live Italian into Spanish. Everyone in the conversation sees the same translated stream.

Ideal for live captions, multilingual meetings, broadcasts, lectures, and customer calls.

voice_selection
Italian speaker talks in Italian.
hearing
Spanish speaker hears Spanish.
voice_selection
Spanish speaker replies in Spanish.
hearing
Italian speaker hears Italian.

Two-way translation

Translate between Italian and Spanish for live bilingual conversation. Each side speaks naturally and hears the other in their own language.

Soniox supports real-time two-way translation between any two of 60+ supported languages.

Accurate on both ends of the pair

Soniox transcribes Italian at 4.5% word error rate and Spanish at 5.3% word error rate. Accurate recognition on both sides is what makes the translation reliable.

speech_to_text

Speech-to-Text

Native-speaker accuracy across 60+ languages, with support for multilingual speech, alphanumerics, speaker diarization, context.

translate

Translation

Real-time streaming translation across 3,600 language pairs, built for high quality and low delay across all supported languages.

text_to_speech

Text-to-speech

High-fidelity speech generation in 60+ languages, built for names, alphanumerics, language switching, and ultra-low-latency streaming.

Together, they create a complete real-time low-latency speech AI platform.

quiz
About Italian and Spanish

Italian has roughly 65,000,000 speakers across Italy, San Marino, Vatican City, and Switzerland. Spanish has roughly 500,000,000 speakers across Spain, Mexico, Colombia, and Argentina.

Standard Italian is based on the Tuscan dialect, largely due to the literary influence of Dante, Petrarch, and Boccaccio.

Spanish is the second most spoken language in the world by native speakers, after Mandarin Chinese.

Italian and Spanish are closely related languages, which helps Soniox keep tone and meaning consistent across the pair.

Translate Italian to any language

From Italian to Spanish, or Italian to any of 60+ supported languages. All real-time.

AfrikaansAlbanianArabicAzerbaijaniBasqueBelarusianBengaliBosnianBulgarianCatalanChineseCroatianCzechDanishDutchEnglishEstonianFinnishFrenchGalicianGermanGreekGujaratiHebrewHindiHungarianIndonesianJapaneseKannadaKazakhKoreanLatvianLithuanianMacedonianMalayMalayalamMarathiNorwegianPersianPolishPortuguesePunjabiRomanianRussianSerbianSlovakSlovenianSpanishSwahiliSwedishTagalogTamilTeluguThaiTurkishUkrainianUrduVietnameseWelsh

Related translation pages

swap_horizTranslate Spanish to Italianarrow_right_alttranslateItalian speech translationarrow_right_alttranslateSpanish speech translationarrow_right_altarrow_right_altItalian to Frencharrow_right_altarrow_right_altItalian to Portuguesearrow_right_altarrow_right_altItalian to Romanianarrow_right_alt

Frequently asked questions

How do I translate Italian to Spanish with the API?arrow_downward
Add a translation block to your real-time request with source_language "it" and target_language "es". Soniox transcribes Italian and streams the Spanish translation over the same WebSocket.
Is Italian to Spanish translation real-time?arrow_downward
Yes. Soniox streams Spanish while Italian is still being spoken, so meaning arrives mid-sentence instead of after the sentence ends.
What about translating Spanish to Italian?arrow_downward
That direction is supported too. See the Spanish to Italian page, or use two-way translation to run both directions in one session.
Does Soniox handle Italian dialects and accents?arrow_downward
Yes. Soniox handles Italian dialects like Tuscan, Neapolitan, and Sicilian in a single model, so Spanish translation stays accurate across regions.
Which other providers support Italian to Spanish?arrow_downward
Based on their public docs, OpenAI, Google, Azure, and Speechmatics list both Italian and Spanish for real-time translation. Soniox is the only one that also supports two-way live translation across 60+ languages.
How fast is Italian to Spanish translation?arrow_downward
Soniox streams Spanish as Italian is being spoken, with ultra-low latency. Translation arrives before the sentence ends.

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