Skip to content
Now boarding New: every course now has a coding preview video — five lines, C++ to SAS. See new lines Code WELCOME10 takes 10% off your first ticket · 14-day refund

Speech AI: Build a Voice Command App

Build an offline voice assistant that hears commands, understands them and talks back — in Python.

  • Intermediate
  • 17 lessons · 2h 42m of video
  • 166 students
  • English
  • Updated Oct 2026
Coding preview Speech AI: Build a Voice Command App

The route

Curriculum

5 modules · 17 lessons · 2h 42m of video

  1. 1

    Audio basics

    3 lessons

    28m
  2. 2

    Speech to text

    4 lessons

    39m
  3. 3

    Wake words

    3 lessons

    31m
  4. 4

    Understanding commands

    4 lessons

    37m
  5. 5

    Talking back

    3 lessons

    27m

Destination

What you will be able to do

  • Record and process audio in Python
  • Transcribe speech with an offline model
  • Detect a custom wake word
  • Map phrases to intents and actions
  • Reply with offline text-to-speech

Before you board

You will need

  • Comfortable Python
  • A microphone

About this course

The journey

Speech is one of the most useful AI interfaces and it can run entirely on your own computer. You build a voice command app that listens for a wake word, transcribes speech, recognises intents and responds with synthetic speech.

Everything uses open models that run offline, and you learn how audio is represented, how speech recognition models work and how to keep latency low enough to feel natural.

Frequently asked questions

Still unsure about something? Write to our contact page and a human answers, usually the same working day.

Intermediate. You should be comfortable with the basics listed under requirements.

No. You pay once and keep lifetime access, including every future update to this course.

Yes. The preview video at the top of this page shows real code from the course being written and run.

Checkout is handled on our provider's secure payment page. The moment your payment clears we email your personal access link and access code to the address you used at checkout, and the same link appears in your account library. There is nothing to install and nothing to wait for.

Email within 14 days of your purchase, quote your order number, and we refund the full amount to your original payment method. No form to fill in and no questions about how much of the course you watched.

What students say

No reviews yet

Nobody has reviewed this course yet, so there is no score to show. Buy it, work through it, and your review could be the one that helps the next developer decide.

€49 EUR

One-time payment · lifetime access

Timetable updates

New lines, first. One email when something departs.

Release notes for new courses and major updates to the ones you own, plus launch fares for subscribers. No digest padding, unsubscribe in one click.

By subscribing you agree to our Privacy Policy.