What is speaker diarization?

Speaker diarization is the process of identifying speakers in virtual meetings and generating labeled transcripts. It identifies who said what, turning generic text into useful conversation data your users can search, analyze, and reference.
With a speaker diarization API, developers can integrate speaker labeling into applications, enabling richer insights and actionable data for users.

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Speaker diarization API

Why use a speaker diarization API?

Our speaker diarization API helps developers attribute each word to the correct participant for richer insights and actionable data. 

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Competitive meeting features

Identify speakers accurately to engage and retain users of CRMs, collaboration tools, legal deposition software, and more. 

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Easy integration

Add speaker identification with one API call, powered by AssemblyAI. Reduce development complexity across Zoom, Microsoft Teams, and Google Meet. 

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Structured data

Access speakers, timestamps, and conversation metadata without processing meeting audio from scratch. 

Powerful speaker diarization features for your app

The Nylas Notetaker API handles the complexity of building speaker identification so you can focus on your core product.

Reliable Diarization

AI-driven precision to identify speakers accurately. 

  • Get timestamps for clear attribution in meetings of up to 10 participants
  • Deliver sharp speaker separation for client calls, team discussions, or workshops
JSON & Text Outputs

Flexible, developer-friendly output formats for any use case.

  • Use structured JSON with speaker IDs and timestamps to build analytics dashboards
  • Display plain text transcripts directly in CRMs or collaboration interfaces
Secure & Compliant

Robust security measures that safeguard sensitive meeting data. 

  • Certified for SOC 2, HIPAA, GDPR, ISO 27701 and ISO 27001 compliance
  • Enterprise-grade encryption and data protection for all recordings and transcripts
Calendar Sync

Automated meeting recordings without user intervention or manual bot deployment.

  • Native calendar integrations with Google and Microsoft Calendars
  • Monitor calendar events and auto-deploys bots to scheduled Zoom, Teams, and Google Meet calls
Trusted by over 250,000 developers worldwide
  • LifeMD

How does our speaker diarization work?

Integrating speaker diarization into your app is simple with the Nylas Notetaker API. Here’s how it works:

 

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Invite the Notetaker bot

Use a POST /notetakers request with the meeting URL to schedule the bot for a Zoom, Teams, or Meet call.

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Automatic Recording & Transcription

The bot joins, records, and transcribes the meeting with AI.

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Speaker Identification

The API identifies speakers, assigns labels, and timestamps contributions in JSON or plain text format.

Use Cases

Ship features that keep users coming back

Speaker diarization unlocks meeting intelligence your customers expect.

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CRM platforms

Boost customer engagement by replacing manual call notes with automated tracking and documentation.

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Recruiting Tools

Move talent through the pipeline faster with structured transcripts for faster reviews, feedback, and follow-ups.

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Training Platforms

Boost training participation and satisfaction with accurate learning summaries and targeted participant analysis. 

FAQs

Need more help? Let’s talk!

What is speaker diarization in the Nylas Notetaker API?

Speaker diarization is an AI-powered feature that identifies and labels individual speakers in meeting audio, delivering transcripts with speaker’s name.

Which platforms does Nylas speaker diarization support?

It supports Google Meet, Microsoft Teams, and Zoom, with seamless integration via the Nylas Notetaker API.

How accurate is the speaker identification?

Powered by AssemblyAI, it offers high-accuracy diarization for up to 10 participants, even in complex audio environments.

Can I integrate speaker diarization with my existing Nylas Calendar API?

Yes, the Notetaker API integrates with the Nylas Calendar API to auto-join meetings and process transcripts.

Is the Notetaker API secure and compliant?

Yes, it’s SOC 2, HIPAA, GDPR, ISO 27001 and ISO 27701 certified, ensuring enterprise-grade security.