Text-to-Speech Data Services for Natural-Sounding Voice AI

Custom TTS voice datasets across 60+ languages — collected, transcribed, and evaluated end-to-end.

Tts

Empowering teams to build world-leading AI products.

 What Are TTS Data Services?

Text-to-speech (TTS) data services produce the paired text and audio recordings used to train AI models that convert written text into natural-sounding voice. Shaip delivers custom TTS data across 60+ languages, covering scripted studio recordings, expressive multi-style voice, prosody and breath annotation, and Mean Opinion Score (MOS) evaluation.

Custom tts solutions

Our Text-to-Speech Data Capabilities

From studio-grade recordings to everyday scenarios, our TTS technology captures the essence of languages and dialects worldwide. Our TTS Solutions include:

Data collection

TTS Data Collection

Studio-grade and in-field recordings of read speech, scripted prompts, and spontaneous monologue across 60+ languages. Shaip captures clean 24kHz/48kHz audio with documented speaker demographics, controlled acoustic conditions, and signed consent for every contributor.

Expressive & Multi-Style Voice

Voice recordings across registers — neutral narration, conversational dialogue, customer-service style, and character voices — annotated for emotion, energy, and intent. Shaip's expressive TTS data is the differentiator between commodity synthesis and premium voice products.

Prosody & Phonetic Annotation

Phoneme-level alignment, pitch contour, stress patterns, breath placement, and pause-duration labels. Shaip annotators work with phoneticians to deliver the fine-grained labels that move TTS output from intelligible to genuinely natural.

Multilingual & Code-Switched Speech

Native-speaker recordings across 60+ languages and major dialects including Indic languages, Arabic variants, Mandarin, Hindi, and Bengali. Shaip supports code-switched scripts for bilingual TTS models that handle real-world utterance patterns.

TTS Evaluation & MOS Scoring

Independent evaluation of synthesised speech using Mean Opinion Score (MOS), naturalness, intelligibility, and speaker-similarity rubrics. Shaip evaluators rate TTS output against expected references and surface bias or accent disparities across demographic cohorts.

Off-the-Shelf TTS Datasets

Licensed, ready-to-use TTS datasets across 60+ languages with documented hours, speaker counts, and acoustic specs. Customers shorten time-to-train by starting with curated Shaip catalog data, then layer custom collection on top.

TTS Components

As we examine Text-to-Speech (TTS) technology, we uncover its core elements, each a vital cog in converting written text into spoken words. These include:

Text Analysis

Breaks down raw text into understandable elements for the system.

Text Normalization

Transforms irregular words and numbers into spoken equivalents (like "1995" to "nineteen ninety-five").

Word Segmentation

Distinguishes separate words, which varies in complexity across languages.

POS Tagging

Identifies parts of speech, crucial for correct pronunciation in varying contexts.

Prosody Prediction

Adjusts rhythm and intonation to make speech sound natural.

Grapheme to Phoneme Conversion

Maps written letters to spoken sounds, essential for accurate speech synthesis.

TTS Datasets by Language – Diverse Voices

Select from a rich tapestry of TTS voice samples, perfect for many applications and industries. Shaip maintains licensed TTS voice datasets across major world languages and Indic / MENA / East Asian language families. Each dataset ships with documented hours, speaker counts, recording specs, and consent records — ready for fine-tuning or evaluation.

Arabic
Dataset

No. Hours: 1,947

Danish
Dataset

No. Hours: 2,579

Dutch
Dataset

No. Hours: 1,205

Hindi
Dataset

No. Hours: 2,867

Japanese
Dataset

No. Hours: 2,335

Text-To-Speech (TTS) Use-Cases

Text-to-speech (TTS) technologies bridge human interaction and digital convenience. This section explores TTS use cases, illustrating its transformative role across industries.

IVR & customer-service automation

branded voices for call deflection, on-hold messaging, and self-service flows.

Voice assistants & conversational AI

natural responses for Alexa-class assistants and enterprise voice agents.

In-car & navigation

eyes-free turn-by-turn directions, alerts, and vehicle status announcements.

E-learning & accessibility

narration for courses, screen readers, and WCAG-compliant content.

Audiobooks & podcasting

long-form synthetic narration with multi-speaker support.

Localized media & dubbing

multilingual voice-overs that preserve prosody across languages.

Healthcare communication

medication reminders, patient education, and clinician dictation responses.

Voice cloning & brand voices

personalised TTS for consumer brands and creator platforms.

Our Expertise, Your Success

With Shaip’s expertise, benefit from our successful track record in TTS data collection, translation, and evaluation for conversational AI. Trust us to deliver exceptional results and maximize your voice-enabled systems.

You’ve finally found the right TTS Company

We offer AI training speech data in multiple native languages. We have over a decade of experience in sourcing, transcribing, and annotating customized, high-quality datasets for Fortune 500 companies.

Scale

We can source, scale, and deliver audio data from across the world in multiple languages and dialects based on your requirements.

Expertise

We have the right expertise concerning accurate and unbiased data collection, transcription, and gold-standard annotation.

Network

A network of 30,000+ qualified contributors, who can be quickly assigned data collection tasks to build AI training model & scale-up services.

Technology

We have a fully AI-based platform with proprietary tools & processes to leverage the workflow management 24*7 round the clock.

Agility

We adapt to changes in customer requirements quickly & help in accelerating AI development with quality speech data 5-10x faster than competition.

Security

We give utmost importance to data security and privacy and are also certified to handle highly regulated sensitive data.

Reasons to choose Shaip as your Trustworthy AI Data Collection Partner

People

People

Dedicated and trained teams:

  • 30,000+ collaborators for Data Creation, Labeling & QA
  • Credentialed Project Management Team
  • Experienced Product Development Team
  • Talent Pool Sourcing & Onboarding Team

Process

Process

Highest process efficiency is assured with:

  • Robust 6 Sigma Stage-Gate Process
  • A dedicated team of 6 Sigma black belts – Key process owners & Quality compliance
  • Continuous Improvement & Feedback Loop

Platform

Platform

The patented platform offers benefits:

  • Web-based end-to-end platform
  • Impeccable Quality
  • Faster TAT
  • Seamless Delivery

Our Expertise

Hours of Speech Collected
0 +
Team of Voice Data Collectors
0
PII Compliant
0 %
Fortune 500 Clientele
0 +

Security & Compliance​

GDPR
HIPAA
ISO 9001:2015
SOC 2 Type II
ISO 27001
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Text-to-Speech, or TTS, is a speech AI technology that converts written text into spoken audio. A TTS system processes text through steps such as text normalization, word segmentation, pronunciation modeling, and prosody prediction before generating natural-sounding synthetic speech.

TTS datasets provide paired text and audio recordings that help machine learning models learn how words, pronunciation, rhythm, tone, and accents should sound. High-quality TTS datasets improve speech fluency, naturalness, intelligibility, and multilingual performance.

A high-quality TTS dataset includes clear audio, accurate transcripts, diverse speakers, and broad coverage of accents, dialects, tones, speaking styles, and languages. It should also include consistent metadata, quality checks, and annotations for pronunciation, phonemes, timing, intonation, and prosody.

Annotated TTS datasets help speech models learn the fine details of human speech. Labels for phonemes, pronunciation, timing, intonation, stress, pauses, and prosody allow TTS systems to generate speech that sounds more accurate, expressive, and human-like.

A human-like TTS system depends on accurate pronunciation, natural prosody, correct rhythm, expressive intonation, and diverse training data. Strong grapheme-to-phoneme conversion and prosody prediction help the system avoid robotic speech and better match real human speaking patterns.

TTS systems handle prosody by analyzing sentence structure, punctuation, word emphasis, context, and speaking intent. The model predicts rhythm, pitch, stress, pauses, and intonation to make the generated speech sound natural and emotionally appropriate.

The main challenges include supporting different languages, dialects, and accents; predicting natural prosody; maintaining clarity across speech contexts; handling pronunciation variation; and reducing robotic or biased output. Diverse and well-annotated datasets help address these challenges.

Yes. TTS systems can support multilingual speech synthesis when trained on diverse, high-quality datasets covering multiple languages, accents, dialects, and speaker demographics. Multilingual datasets help models generate more accurate and natural speech across regions and user groups.

Shaip evaluates TTS output using Mean Opinion Score, or MOS, on a 1–5 scale, along with naturalness, intelligibility, speaker similarity, and prosody accuracy rubrics. Evaluators compare generated speech against expected references and identify bias or accent disparities across demographic cohorts.

Shaip uses evaluation feedback to improve future data collection and annotation cycles. Findings from MOS scoring, naturalness checks, intelligibility reviews, speaker-similarity assessments, and demographic bias analysis are fed back into the next data collection iteration to close the quality loop.

Yes. Shaip-collected TTS datasets are delivered with commercial-use licensing, contributor consent, and revocation pathways aligned with GDPR and emerging AI regulations. Customers can choose perpetual, time-bound, or use-bound licensing depending on the engagement model.

TTS is used in voice assistants, e-learning platforms, accessibility tools, customer service automation, call centers, navigation systems, automotive interfaces, healthcare applications, financial services, eCommerce experiences, and digital content creation.

Industries such as healthcare, education, automotive, customer service, eCommerce, media, banking, and accessibility services benefit from TTS. These industries use synthetic speech to improve user experience, automate communication, increase accessibility, and support multilingual engagement.

Shaip’s TTS data solutions include scalable data collection, multilingual speaker coverage, accent and dialect diversity, expert annotation, quality validation, speaker consent, commercial-use licensing, and compliance support for data privacy regulations such as GDPR and HIPAA.

TTS data service costs depend on dataset size, number of languages, speaker diversity, recording requirements, annotation complexity, licensing model, and quality validation needs. Shaip provides tailored pricing based on the project scope and engagement requirements.