Tutorial and Demo: How to Build a Voice AI Video Game in Python

A tutorial demonstrates how to convert a Python/Pygame infinite-scrolling platformer from keyboard-based controls into a voice-controlled game using Deepgram’s speech-to-text API. The original game uses Player, Platform, and Game classes to manage charged jumps, gravity, scrolling terrain, randomly generated static, moving, and sinking platforms, scoring, and increasing difficulty. Voice input is handled by a background AudioProcessor thread that records microphone audio when the player is grounded, detects speech and silence, preserves a short pre-speech buffer, amplifies and saves the recording as a WAV file, and sends it to Deepgram for transcription. The game interprets consecutive occurrences of “jump,” along with several tolerated alternatives, as a jump-strength value capped at 10, allowing repeated spoken commands to produce longer and higher jumps. Integration requires adding audio-triggered jumping, optional on-screen transcript and jump-count displays, API and audio constants, and thread shutdown handling; the approach relies on recorded-file transcription rather than streaming due to the author’s reported Python audio-package reliability issues.

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