Mobile App-Based Collection
Secure voice data collection via Android & iOS applications, enabling scalable crowd-based and controlled speech recording across diverse demographics and accents.
AI Data Collection
Speech Dataset Collection
Speech Datasets for Natural Language Processing
ASRTTSConversational AI
Overview
End-to-end speech data collection for ASR, TTS and Conversational AI — through mobile app, web app and acoustic studio recording, across 100+ languages.
Dhvani.ai delivers end-to-end Speech Dataset Collection services designed for training and evaluating modern Speech AI, ASR, TTS, and Conversational AI systems. We enable large-scale, high-quality voice data collection through multiple secure recording channels, ensuring flexibility, scalability, and global reach.
From wake-word and command datasets to hundreds of hours of spontaneous conversational speech, every programme is designed around your model’s real users — their languages, accents, age groups, devices and acoustic environments. Scripts, prompts, speaker demographics and recording specifications are agreed upfront, so the data you receive is balanced, consistent and ready to train on.
Capabilities
Data Collection Channels
Web App Recording
Browser-based speech collection for fast onboarding, remote participation, and enterprise-controlled recording workflows without device limitations.
Acoustic Studio Recording
Professional, studio-grade speech recording in controlled acoustic environments, ideal for TTS, AI dubbing, voice cloning, audiobooks, and high-fidelity speech datasets.
Scope
Speech Data We Collect
Speech Types
- Scripted read speech
- Semi-scripted prompts
- Spontaneous & conversational speech
- Wake words & voice commands
- Call-centre style dialogues
Speaker Coverage
- Native speakers across 100+ languages
- Regional accents & dialects
- Age & gender balanced cohorts
- Child, adult & senior voices (with consent)
Recording Conditions
- Studio-grade quiet rooms
- Real-world noisy environments
- In-car, home & office acoustics
- Multiple devices & microphones
Use cases
Where it powers AI
Automatic Speech Recognition (ASR)Text-to-Speech (TTS) & voice cloningConversational AI & voice assistantsSpeaker identification & verificationKeyword spotting & wake-word detectionCall analytics & IVR systems
Quality & security
Built to be trusted
- Audio specification checks (sample rate, bit depth, SNR)
- Script adherence & pronunciation review
- Speaker metadata validation
- Informed consent captured for every contributor
- Secure, access-controlled storage & transfer
Delivery formats
WAVFLACMP3JSON metadataCSV manifestsClient Tool
“Dhvani.ai ensures accurate, diverse, and production-ready speech datasets—at global scale.”
How it works
From brief to AI-ready delivery
01Step
Requirement Analysis
We capture your use case, data specification, languages, volumes, timelines and compliance needs.
02Step
Solution Design & Pilot
We design the workflow, write guidelines and deliver a pilot batch for your sign-off.
03Step
Production
Dedicated teams scale delivery with daily progress tracking and a single point of contact.
04Step
Quality Assurance
Multi-layer QA, sampling and reporting against agreed metrics on every delivery.
05Step
Delivery & Support
Secure delivery in your format, plus revisions, iterations and long-term support.
Service FAQ
Speech Dataset Collection — FAQs
Quick answers to common questions about this service.
Still have questions?
Talk to our team directly — we usually reply within a few hours.
We collect through our Android & iOS mobile app, a browser-based web app, and professional acoustic studios. The channel is chosen based on the audio quality, scale and speaker diversity your model needs.
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Start a Project
Ready to start your speech dataset collection project?
Share your languages, volumes and timelines — we’ll respond with a scoped plan within one business day.