Patent ID: 11924625
Assignee: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A system for a room calibration in a speaker system, comprising:
an internal microphone configured to record a sound signal from at least one speaker; and
a processor configured to:
calculate an impulse response of the sound signal received at an internal microphone; and
perform the room calibration based on the calculated impulse response,
wherein the internal microphone is positioned inside one of the at least one speaker in the speaker system, and

wherein the processor is further configured to:
play a forward sweep signal by one of the at least one speaker;
record the sound signal from the one of the at least one speaker by the internal microphone; and
convolve an inverse of the forward sweep signal with the sound signal recorded by the internal microphone.