Audio Expert System™ Overview
The primary goal of the Audio Expert System™ is to expedite the detection and resolution of Bluetooth protocol related audio impairments. To achieve this, the system automatically identifies audio impairments and reports them to a user as “events”. It also correlates the audio events with any detected codec or Bluetooth protocol anomalies (events). The system allows a user to view the audio waveform, audio events, codec events, and Bluetooth protocol events on a time-aligned display.
The system works in two modes of operation:
- Non-Referenced Mode: The system is processing audio of completely unknown program content (see "Non-Referenced Mode Event Reporting").
- Referenced Mode: The system is operating in a “pseudo closed loop” test scenario where the user plays specific Reference Audio files (pre-recorded audio test files provided by Frontline) on the Source DUT (device under test) that is sent via Bluetooth to the Sink DUT. Frontline’s Audio Expert System™ analyzes resulting over-the-air audio (see "Referenced Mode Event Reporting".
The Audio Event Processor is a subsystem of Frontline’s Audio Expert System™, and it monitors and analyzes Bluetooth audio streams with the purpose of detecting and reporting audio impairments.