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1. What is Azure Speech-to-Text?

Azure Speech-to-Text, part of Microsoft Azure Cognitive Services, offers cloud-based automatic speech recognition (ASR). It converts spoken language into text using advanced deep learning models—enabling real-time transcription, batch processing, and support for custom model training. It’s designed to handle enterprise-grade workloads with high accuracy and multi-language capabilities.

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2. Key Features of Azure STT

Azure offers a variety of features that make it a leading STT solution:

  • Real-Time Streaming & Batch Transcription: Supports both low-latency streaming for live interactions and batch processing for recorded files.

  • Speaker Diarization & Language Identification: Detects speaker turns and identifies languages in multi-party, multilingual scenarios.

  • Noise Reduction: Advanced noise suppression techniques improve transcription accuracy in challenging audio conditions.

  • Secure & Scalable: Fully managed service with options for resource control, webhook callbacks, and deployment across regions.

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3. How Bolna Uses Azure for STT

Bolna AI integrates Azure’s STT technology to enable real-time, high-accuracy speech transcription for its AI-powered voice agents. Here’s how Bolna leverages Azure:

  • Live Conversation Transcription: Bolna uses Azure’s real-time streaming to convert user speech into text with minimal delay, enabling dynamic agent interaction.

  • Multi-Language, Multi-Speaker Context: With speaker diarization and language detection, Bolna agents accurately follow multilingual or multi-party calls.

  • Speaker Identification and Context Retention: Bolna uses Azure’s speaker diarization capabilities to differentiate between the agent and the caller in conversations. This feature helps in maintaining context and structuring responses effectively.

  • Recording & Post-Call Analysis: Bolna supports batch transcription of stored calls via REST, using callbacks/webhooks to asynchronously retrieve results for insights, compliance, and analytics.

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Conclusion

Integrating Azure Speech-to-Text with Bolna empowers voice AI agents to deliver seamless, real-time, and highly accurate transcriptions across diverse languages and speaker scenarios. Its enterprise-grade scalability, security, and support for custom models make it ideal for dynamic, high-volume interactions. By leveraging Azure’s advanced capabilities, Bolna ensures more natural, human-like conversations and richer post-call insights. This combination strengthens customer experiences and unlocks deeper operational intelligence.