Audio Annotation Services

Audio Annotation Services

Our solutions support a wide range of applications including speech recognition, sentiment analysis, and multilingual voice interfaces. Whether you’re running a pilot or need enterprise-scale labeling, we deliver scalable, secure, and cost-effective audio annotation services tailored for regional and global needs.

Get Started with a Free Pilot

Submit this form to request your pilot.

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Transform Voice Data into Actionable Intelligence

In a world powered by voice commands, smart assistants, and conversational AI, regional audio annotation has become essential. With the rising need for local language support in virtual assistants, transcription engines, and voice biometrics, businesses are increasingly looking to train AI models that understand diverse accents, dialects, and cultural nuances. At Lapiz Digital, we turn raw audio into structured datasets by labeling speech, background sounds, emotions, and speaker traits—with precision, context, and native language expertise.

Our Services

At Lapiz Digital, our audio annotation services ensure your AI models learn from high-quality, labeled audio data. We work with native speakers, domain-trained annotators, and proven workflows to tag and transcribe audio files with maximum accuracy.

Speech Recognition Training, Speaker Diarization, Emotion & Sentiment Tagging, Intent Classification, Voice Activity Detection, and Multilingual Transcription & Translation.We also support domain-specific use cases such as:
Media&entertainment

Media &
Entertainment

Sound event detection, music genre and mood classification, lyrics alignment, dubbing annotation, and audio quality assessment. 

Education&e-learning

Education &
E-learning

Speaker role labeling, question-answer segmentation, language learning audio tagging, and dialogue annotation for interactive learning. 

Accessibility&assistivetech

Accessibility &
Assistive Tech

Audio description tagging for the visually impaired and pre-annotation for real-time captioning systems. 

Media-monitoring&compliance

Media Monitoring &
Compliance

Content moderation tagging and keyword spotting for podcasts, videos, and public broadcasts. 

From short audio clips to long conversations, our team ensures consistency, linguistic accuracy, and high-quality outputs that enhance model training and end-user experience. 

 

Trusted by our Customers

Leading global businesses trust Lapiz Digital to manage and annotate their audio data. Our clients value our transparent communication, process reliability, and ability to adapt quickly to unique project needs. Whether you’re a startup or an enterprise, we’re here to support your growth through smarter data. 

What We Offer

Our audio labeling services are trusted across diverse sectors including.We customize workflows and annotation guidelines based on your industry needs and use cases.

Healthcare&medical-ai

Healthcare

Annotation of medical dictations, doctor-patient conversations, and symptom recordings for AI-powered diagnostics. 

Retail&e-commerce

E-commerce & Retail

Voice search optimization and customer sentiment analysis in multilingual contexts.

Finance

Finance

Voice-based fraud detection and identity verification for secure transactions.

Telecom & bpos

Telecom & BPOs

Customer support call tagging, intent classification, and compliance monitoring. 

Edtech & virtual training

EdTech & E-learning

Speech-to-text conversion, language learning annotation, and interactive lesson tagging. 

Smart-devices&iot

Smart Devices & IoT

Wake-word detection, command labeling, and environment-based voice control training for smart assistants and appliances. 

Why Choose Lapiz Digital for Audio Annotation Services

Domain-expertise

Domain Expertise

Annotators trained in sector-specific audio dat

Data-securit &compliance

Data Security

Full compliance with GDPR, HIPAA, and ISO standards

Multilingual-and-complex-annotation

Multilingual Support

Annotate in English, Spanish, Arabic, German, and more 

scalable-operations

Scalable Operations

Handle large datasets with flexible timelines 

Custom-guidelines

Custom Workflows

Built around your data formats, goals, and tools 

Our Annotation Process

We follow a streamlined, transparent annotation process for efficiency and quality:

Project-scoping

Project Scoping

Understand data volume, language, complexity, and use case 

Custom-guidelines

Custom Guidelines

Define tagging rules, speaker markers, and emotion labels 

Tool selection

Tool Selection

Use advanced in-house or client-specified annotation tools 

Skilled-annotators (1)

Skilled Annotators

Assign trained linguists and QA specialists to the task 

Annotation & Multi-Layered Review (1)

Multi-Layer Review

Ensure data accuracy through layered quality checks 

Delivery&FeedbackLoop (1)

Delivery & Feedback Loop

Provide structured output and incorporate revisions 

Compliance & Security You Can Rely On

We take data privacy seriously. All annotation work is performed in secure environments with restricted access and non-disclosure agreements in place. Our infrastructure is aligned with leading global standards to protect sensitive information and always uphold client confidentiality. 

Get Started with Audio Annotation Services

Let’s bring structure to your audio data. Whether you’re training a voice bot, fine-tuning a speech-to-text model, or analyzing customer calls, Lapiz Digital can help you scale faster with quality annotations. Contact us to discuss your project, receive a sample, or get a custom quote tailored to your needs. 

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