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Build Voice Agents From Scratch

17h 8m 50s
English
Paid
Added to CourseFlix

Build Voice Agents From Scratch is a 11-lesson 17 hours 8 minutes self-paced course by Dr. Sreedath Panat, Vizuara AI Labs. Voice is becoming the new standard for interacting with AI.

Course facts

Lessons
11
Duration
17 hours 8 minutes
Language
English
Added to CourseFlix
October 2026
Instructor
Dr. Sreedath Panat, Vizuara AI Labs
Price
Premium

Voice is becoming the new standard for interacting with AI. The largest tech companies—Meta, Google, Microsoft, NVIDIA, and leading venture funds—agree that voice interfaces will be the next stage in the development of artificial intelligence. The Conversational AI market is rapidly growing, investments in Voice AI are increasing every year, and the demand for specialists capable of creating intelligent voice assistants is one of the highest in the industry. This course will help you not only understand the technology but also learn how to create full-featured industrial-level voice AI agents using modern models, tools, and architectures.

Who this course is for

The program is designed for: - Python developers who want to transition into the Voice AI field; - ML and AI engineers who wish to work with speech technologies; - Backend developers creating intelligent services; - Engineers studying LLM and agent systems; - Researchers and students interested in modern speech processing technologies. Prior experience in voice technologies is not required, but confident proficiency in Python and a basic understanding of machine learning principles are recommended.

What you will learn

By the end of the course, you will be able to: - Design the architecture of modern voice AI agents; - Create a complete speech processing cycle: from audio acquisition to voice response generation; - Use Speech-to-Text (ASR), Large Language Models (LLM), and Text-to-Speech (TTS) in a unified pipeline; - Develop systems with minimal real-time data transmission delay; - Implement memory, external tool calling, and agent behavior; - Work with audio streaming through WebSockets; - Design scalable production-ready solutions; - Deploy voice assistants locally, in the browser, and in the cloud; - Create industry-level projects for your portfolio.

Course Program

Over 8 practical modules, you will sequentially build your own voice AI agent.

Module 1. Architecture of Voice AI Agents

- Difference between a voice agent and a chatbot; - Full speech processing cycle; - Streaming architecture; - Delays, interruption handling, and dialogue management; - Creating the first working voice pipeline.

Module 2. Speech-to-Text (ASR)

- Basics of automatic speech recognition; - Whisper, Faster-Whisper, and Distil-Whisper; - Recording audio from a microphone; - Voice Activity Detection (VAD); - Creating your own transcription system.

Module 3. Text-to-Speech (TTS)

- Modern speech synthesis technologies; - Comparing Piper, Coqui TTS, and ElevenLabs; - Generating natural speech; - Local and cloud solutions; - Voice streaming playback.

Module 4. LLM as the Intelligence of a Voice Agent

- Language model integration; - Dialogue building; - Context management; - Designing effective prompts for voice communication; - Creating natural user interaction.

Module 5. Tools, Memory, and Agent Systems

- Tool Calling; - Short-term and long-term memory; - Connecting APIs; - Information retrieval; - Performing actions by the voice agent.

Module 6. Real-time Voice Agents

- WebSockets; - Streamed speech processing; - Partial transcription; - Handling user interruptions (Barge-in); - Optimizing system operation speed.

Module 7. Production Architecture

- Designing reliable services; - Scaling; - Logging and monitoring; - Fault tolerance; - Cost optimization of model usage; - Comparing popular Voice AI frameworks.

Module 8. Final Project

Each student will create a fully functional voice AI agent that can be used in real projects. Several options to choose from: - AI receptionist; - Voice assistant for meetings; - Research AI assistant; - Personal Desktop Assistant; - Voice agent for calendar and task management.

Practical Tools

During your studies, you will work with the same technologies used in modern Voice AI products: - Python; - OpenAI Whisper; - Faster-Whisper; - Distil-Whisper; - Piper TTS; - Coqui TTS; - Silero VAD; - GPT and Claude; - WebSockets; - Modern libraries for streaming audio processing.

Research Package

Each course participant receives additional materials for developing their own research project: - A personalized research roadmap for 8 weeks; - A scientific article template on the chosen topic; - A selection of key scientific publications; - A ready project structure and starter code; - Recommendations for experiments and research development.

Learning Outcome

Upon course completion, you will gain not only a deep understanding of Voice AI architecture but also a production-level project that can be included in your professional portfolio. You will be able to independently create intelligent voice assistants, integrate modern language models into speech interfaces, design scalable systems, and confidently apply for positions such as Voice AI Engineer, Conversational AI Engineer, or AI Software Engineer.

Additional

This package combines the main 8-day course on creating voice AI agents with the Research Starter Kit, providing comprehensive preparation for both practical development and the commencement of scientific work in the field of Voice AI. In addition to full access to the course program, you will receive recordings of all sessions, educational materials, presentations, project source code, and lifetime access to the materials. The package also includes a personalized research roadmap, a draft scientific article on the chosen topic, a carefully selected collection of scientific publications, and a ready project template with starter code. This learning format is suitable for developers, engineers, students, and researchers who want not only to learn to create modern voice AI systems but also to advance in the scientific field: publishing research, preparing for admission to master's or doctoral programs, and building a career in the field of Voice AI and conversational artificial intelligence. The combination of the course and research package allows you to go from mastering practical skills in developing voice AI agents to forming your own research topic and preparing the foundation for your first scientific publication—all within one educational program.

Who teaches Build Voice Agents From Scratch?

Dr. Sreedath Panat

Dr. Sreedath Panat thumbnail

Dr. Sreedath Panat — a research engineer and entrepreneur known for his developments in AI and sustainable technologies:

  • He holds a PhD from Massachusetts Institute of Technology (MIT), where he studied applied methods of mechanics, machine learning, and artificial intelligence.
  • He graduated from IIT Madras (dual degree BTech) before enrolling in MIT.
  • He co-founded Vizuara AI Labs, where he serves as an engineer and AI product strategist.
  • He is known as the inventor of self-cleaning AI-powered solar technology — a development that uses intelligent systems to optimize the cleaning and efficiency of solar panels.
  • In addition to engineering work, he actively participates in the development of educational programs on AI, conducts technical lectures, and shares practical knowledge on ML and computer vision.

Vizuara AI Labs

Vizuara AI Labs thumbnail

Vizuara is an international educational school in the field of artificial intelligence, founded by graduates of IIT Madras, MIT, and Purdue University. The company is developing with the support of the MIT ecosystem and aims to make quality AI education accessible to students and professionals worldwide.

Learning at Vizuara is based on the principle of "learn by creating": instead of studying theory alone, students work on real projects in the fields of artificial intelligence, machine learning, and generative AI. The programs combine fundamental knowledge, practical assignments, individual mentoring, and constant feedback, helping to quickly acquire in-demand skills.

In addition to technical courses, the school supports the development of academic and professional profiles: it assists with preparing portfolios, research papers, capstone projects, applying to foreign universities, as well as interview preparation and starting a career in AI.

The mission of Vizuara is to democratize access to modern education in the field of artificial intelligence by providing structured programs, practical experience, and mentorship. The school aims to become one of the most reliable educational platforms in emerging markets, where students not only gain knowledge but also create projects, build strong portfolios, and receive real career opportunities.

The philosophy of Vizuara is based on high-quality standards, a practical approach to learning, transparency, honest feedback, and a focus on the success of each student.

What lessons are included in Build Voice Agents From Scratch?

This is a demo lesson (10:00 remaining)

Watch the first 10 minutes free. One payment unlocks all 11 lessons here and every other premium course. No auto-renew.

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#1: 001 Session 1 - Voice agent foundations
All Course Lessons (11)
#Lesson TitleDurationAccess
1
001 Session 1 - Voice agent foundations Demo
01:37:34
2
002 Session 2 - ASR in depth
02:06:51
3
003 Transformers foundations
01:15:34
4
004 Session 3 - TTS in depth
02:07:17
5
005 Session 4 - LLM the brainSession 4 - LLM the brain
01:58:07
6
006 Session 5 - Tools and memory for the LLM reasoning layer
01:46:08
7
007 Session 6 - Streaming, buffer and barge-in
01:43:34
8
008 Session 7 - Building the full voice agent from scratch
02:27:18
9
009 Session 8 - Reducing latency, Speech-to-speech models, livekit and VAPI
01:23:13
10
010 How can you start and sustain
15:08
11
011 My philosophy
28:06
Watch the other 10 lessons

One payment unlocks this course and every other premium course. No auto-renew.

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Books

Read Book Build Voice Agents From Scratch

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Frequently asked questions

Can I take this if I know Python but haven't worked with speech technology?
Yes—you don't need previous experience with voice technology. You'll get more out of the course if you're comfortable with Python and have a basic understanding of machine learning. It starts with voice-agent foundations before moving into speech recognition, speech generation, and the language-model layer. If you're still learning Python, strengthening that first would make it easier to follow how the different parts fit together.
Will I actually build a voice agent, or mostly learn the theory?
There's a dedicated section on building a full voice agent from scratch, alongside the foundations needed to understand its parts. The system brings together audio input, speech-to-text, an LLM, and text-to-speech to produce a spoken response. You'll also study tools and memory in the reasoning layer. So the focus isn't just on recognizing speech or generating audio separately—it's on connecting those capabilities into a complete agent.
I'm a backend developer rather than an ML researcher. Is this a sensible fit?
Yes, backend developers building intelligent services are one of the intended audiences. The emphasis on connecting speech processing, an LLM, tools, and memory makes it relevant if you're interested in how a voice-enabled service fits together. You'll still benefit from basic machine learning knowledge; it's not positioned as a course that avoids those concepts. Python developers, AI engineers, and students interested in speech technology are also part of the intended audience.
Does it get into interruptions and response delays, or just a basic request-and-response flow?
It goes beyond a simple flow where someone speaks and then waits for an answer. There's a section on streaming, buffering, and barge-in—the interruption behavior that matters when a person starts speaking while an agent is responding. Latency reduction and speech-to-speech models also get attention. Those topics make the course relevant if you're interested in the timing and interaction problems of voice systems, not only connecting their components.
Will I learn about LiveKit and VAPI, or is everything built from scratch?
Both approaches have a place here. The course includes building a full voice agent from scratch, and it also introduces LiveKit and VAPI in the section dealing with latency and speech-to-speech models. That gives you a chance to connect the underlying architecture with named voice-agent tools. Don't assume every part uses those platforms, though: the focus also includes the speech-recognition, language-model, and speech-generation components themselves.
How much time should I set aside?
Expect 17 hours and 8 minutes of lesson content across 11 lessons. That's the viewing time, not a promise that you'll finish learning or implementing everything in that window. If you want to work through the voice-agent build rather than only watch, leave additional time for coding and revisiting unfamiliar concepts. Your Python and machine learning background will affect how much extra time you need; there's no fixed practice-time estimate provided.
What could I take from this into other AI projects?
Beyond speech-specific work, you'll study transformer foundations, the role of an LLM in an agent, and how tools and memory support its reasoning layer. Those concepts are useful for thinking about agent systems that don't necessarily use voice. You'll also learn how multiple model components fit into one pipeline. Streaming, buffering, and latency are more directly tied to responsive voice interaction, but they broaden your understanding of how an AI system behaves during use.