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Chapters

01Chapter 1: The Android Sensor Ecosystem 02Chapter 2: Motion Sensors — Accelerometer & Gyroscope 03Chapter 3: Position Sensors — Magnetometer & Orientation 04Chapter 4: Environmental Sensors — Light, Pressure & Temperature 05Chapter 5: The Proximity Sensor — Detection, Wake Locks & Context Awareness 06Chapter 6: Step Counter — Counting What Matters 07Chapter 7: GPS & Geofencing — Location as a Sensor 08Chapter 8: Camera as a Sensor — CameraX & ML Kit 09Chapter 9: The Microphone as a Sensor — Audio Classification & Analysis 10Chapter 10: Biometric Sensors — Fingerprint, Face & Device Credentials 11Chapter 11: Health Sensors — Heart Rate, SpO2 & Vitals Monitoring 12Chapter 12: Sensor Fusion — Combining Multiple Sensors for Intelligent Detection 13Chapter 13: Data Visualization — Presenting Sensor Data Meaningfully 14Chapter 14: Foldable & Multi-Display Sensors — Adaptive Experiences 15Chapter 15: Testing & Benchmarking — Validating Sensor-Driven Apps

Chapter 9: The Microphone as a Sensor — Audio Classification & Analysis

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