Vehicle-mounted sound reproduction signal delay method adapted to listening center position

A vehicle-mounted sound reproduction signal delay method adapted to a listening center position, comprising following steps:

• S1:
• presetting a coordinate reference system to acquire coordinates of each loudspeaker unit, and setting position coordinates of an initial listening center to acquire an initial distance parameter set for signal processing of a vehicle-mounted sound reproduction system, wherein a coordinate system (O-xyz) of the vehicle-mounted sound reproduction system is preset without loss of generality, an origin O of coordinates is a center of a cushion of a driver seat placed at a foremost end and located at a lowest position, an x axis points to a front of the driver seat from the origin of coordinates, a y axis points to a passenger seat position from the origin of coordinates, and a z axis is perpendicular upwards;
• S2:
• measuring and acquiring an impulse response from each loudspeaker unit to the initial listening center, and extracting and obtaining an initial delay parameter set;
• S3:
• acquiring position coordinates of a new listening center in a specific manner, and acquiring a distance parameter set of each loudspeaker unit relative to the new listening center;
• and
• S4:
• generating optimized delay parameters adapted to a new listener based on the distance parameter set relative to the new listening center.