Audio Processing Algorithm Database for Acoustic Adaptation

The patent segments the audio processing algorithms into multiple distinct algorithms stored in a database, each optimized for specific acoustic characteristics. The system divides the single algorithm approach into multiple specialized algorithms that can be selectively applied based on the playback zone's acoustic profile, thereby maintaining audio quality consistency without requiring a completely monolithic system.

The patent changes the parameter of algorithm selection based on acoustic characteristics such as room dimensions, volume, and furniture types. By dynamically selecting different algorithms based on these parameters, the system maintains audio quality consistency across varying acoustic environments without requiring a single complex algorithm to handle all scenarios.

The patent implements self-service by enabling the playback device to automatically measure its own acoustic characteristics using built-in microphones and speakers. The device performs self-diagnosis of its acoustic environment and autonomously selects the appropriate algorithm from the database without requiring external configuration or complex user setup, thereby reducing the operational complexity despite maintaining multiple algorithms.

The patent applies preliminary action by pre-calculating and storing multiple audio processing algorithms in a database before runtime. Each algorithm is pre-optimized for specific acoustic characteristics, so when deployment occurs, the system simply needs to select from pre-prepared solutions rather than performing complex real-time calculations, reducing operational complexity.

The playback device performs self-measurement of acoustic characteristics using its own built-in microphones and speakers. The device plays test signals and captures the room's acoustic response, automatically extracting parameters such as room dimensions, volume, and furniture types without requiring external measurement equipment or complex setup procedures.

The patent uses acoustic vibrations (sound waves) as the measurement mechanism. By playing test signals through the speakers and analyzing the reflected and absorbed vibrations captured by microphones, the system indirectly measures acoustic characteristics such as room dimensions and furniture types through the physical interaction of sound waves with the environment.