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Voice Assistant Integration: Asterisk + Node.js + Yandex SpeechKit + ChatGPT
Upwork • , US • Remote
Posted on: 25th March, 2025
Employment Type: CONTRACTOR
Job Description
I’m looking for a skilled Node.js developer with Asterisk ARI experience to help integrate a voice assistant pipeline.
⚙️ I will handle:
Installation and setup of Asterisk (with ARI enabled)
Installation of Node.js and base environment
Providing all required API keys (Yandex, OpenAI, etc.)
🎯 Your job:
Implement the voice processing logic that connects the following services:
Connect Node.js to Asterisk via ARI External Media
Handle StasisStart event
Capture audio stream from the call
Speech-to-Text (STT) via Yandex SpeechKit
Convert incoming audio to text
Audio format: LPCM 16kHz
Send text to ChatGPT (OpenAI API)
Get the response in natural language
Text-to-Speech (TTS) via Yandex SpeechKit
Convert ChatGPT response to audio
Format compatible with Asterisk playback
Send generated audio back to Asterisk
Either via RTP or file, based on best practice
✅ Requirements:
Modular architecture for easy replacement of STT/TTS providers (e.g. Google, ElevenLabs in the future)
Clean, readable Node.js code with clear separation of logic:
stt/yandex.js, tts/yandex.js, etc.
Basic error handling and logging
Short instructions on how to run the system
📁 Deliverables:
Working Node.js app (no frontend)
Integration with Asterisk via ARI (audio in/out)
Audio ↔ Text ↔ ChatGPT loop working end-to-end
Short README on how to run and test
🛠️ Preferred Skills:
Asterisk (ARI, External Media)
Node.js
Working with audio streams
Yandex SpeechKit (STT + TTS) or similar APIs
OpenAI API (ChatGPT)
💡 If you've done something similar — please include links or a short description.
Looking forward to working with someone experienced and communicative.
Let's build something cool!
⚙️ I will handle:
Installation and setup of Asterisk (with ARI enabled)
Installation of Node.js and base environment
Providing all required API keys (Yandex, OpenAI, etc.)
🎯 Your job:
Implement the voice processing logic that connects the following services:
Connect Node.js to Asterisk via ARI External Media
Handle StasisStart event
Capture audio stream from the call
Speech-to-Text (STT) via Yandex SpeechKit
Convert incoming audio to text
Audio format: LPCM 16kHz
Send text to ChatGPT (OpenAI API)
Get the response in natural language
Text-to-Speech (TTS) via Yandex SpeechKit
Convert ChatGPT response to audio
Format compatible with Asterisk playback
Send generated audio back to Asterisk
Either via RTP or file, based on best practice
✅ Requirements:
Modular architecture for easy replacement of STT/TTS providers (e.g. Google, ElevenLabs in the future)
Clean, readable Node.js code with clear separation of logic:
stt/yandex.js, tts/yandex.js, etc.
Basic error handling and logging
Short instructions on how to run the system
📁 Deliverables:
Working Node.js app (no frontend)
Integration with Asterisk via ARI (audio in/out)
Audio ↔ Text ↔ ChatGPT loop working end-to-end
Short README on how to run and test
🛠️ Preferred Skills:
Asterisk (ARI, External Media)
Node.js
Working with audio streams
Yandex SpeechKit (STT + TTS) or similar APIs
OpenAI API (ChatGPT)
💡 If you've done something similar — please include links or a short description.
Looking forward to working with someone experienced and communicative.
Let's build something cool!
Responsibilities
- Installation and setup of Asterisk (with ARI enabled)
- Connect Node.js to Asterisk via ARI External Media
- Convert incoming audio to text
- Send text to ChatGPT (OpenAI API)
- Convert ChatGPT response to audio
- Format compatible with Asterisk playback
- Send generated audio back to Asterisk
- Basic error handling and logging
- Short instructions on how to run the system
Requirements
- Installation of Node.js and base environment
- Modular architecture for easy replacement of STT/TTS providers (e.g
- stt/yandex.js, tts/yandex.js, etc
- Working Node.js app (no frontend)
- Audio ↔ Text ↔ ChatGPT loop working end-to-end
- Asterisk (ARI, External Media)
- Looking forward to working with someone experienced and communicative
Upwork
Technology
Job Type
CONTRACTOR
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