Seatback audio controller

Shaping of automatic audio crossfade

Signal compressing circuit

Signal processing circuit for audio apparatus

Signal processing circuit in an audio device

Signal responsive automatic control for audio equipment

Signal separator

Sound leveling system using output slope control

Sound or voice responsive timepiece

Sound signal output circuit and method

Sticky leveler

Streaming normalization

Streaming normalization

Switch responsive to an audio cue

System and method for hierarchical audio conflict control

System and method for split automatic gain control

System for hierarchical audio conflict control

System for limiting the magnitude of sampled data