Question 1

What are Speech-to-Text (STT) and Text-to-Speech (TTS) models?

Accepted Answer

STT models convert spoken language into text, while TTS models convert written text into spoken audio. These technologies are used to facilitate voice-driven interactions in applications.

Question 2

What are the best STT models for use with Asterisk?

Accepted Answer

The best STT models for Asterisk often include Google Cloud Speech-to-Text, IBM Watson Speech-to-Text, and Microsoft Azure Speech Recognition. These models offer robust performance and extensive language support and are relatively easy to integrate with Asterisk via APIs.

Question 3

What are the best TTS models for use with Asterisk?

Accepted Answer

Popular TTS models for Asterisk include Google Cloud Text-to-Speech, Amazon Polly, and IBM Watson Text-to-Speech. These models provide high-quality voices, multiple language options, and straightforward integration with Asterisk systems.

Question 4

How can I integrate STT/TTS models with Asterisk?

Accepted Answer

Integrating STT/TTS models into Asterisk typically involves using the AGI (Asterisk Gateway Interface) scripts or ARI (Asterisk REST Interface). These interfaces allow external services like STT/TTS APIs for Asterisk to communicate with the Asterisk server, processing audio streams or generating voice responses.

Question 5

What are the security implications of using STT/TTS models with Asterisk?

Accepted Answer

When using external STT/TTS services for Asterisk, audio data and text are often transmitted over the Internet, posing potential security risks. It's essential to use secure, encrypted connections (HTTPS) and consider the service providers' privacy policies. Depending on your location and industry, compliance with GDPR and HIPAA may also be necessary.

Best STT/TTS models

Best STT/TTS Models for Connecting to Asterisk in 2026: Latency, Benchmarks & Cost Compared