US 12,219,343 B2
Signal generating apparatus, vehicle, and computer-implemented method of generating signals
Hideki Harada, Kakegawa (JP)
Assigned to YAMAHA CORPORATION, Hamamatsu (JP)
Filed by YAMAHA CORPORATION, Hamamatsu (JP)
Filed on Mar. 14, 2024, as Appl. No. 18/604,952.
Application 18/604,952 is a continuation of application No. 17/832,791, filed on Jun. 6, 2022, granted, now 12,010,503.
Claims priority of application No. 2021-114159 (JP), filed on Jul. 9, 2021.
Prior Publication US 2024/0223989 A1, Jul. 4, 2024
Int. Cl. H04R 5/02 (2006.01); H04R 5/04 (2006.01); H04S 3/00 (2006.01); H04S 7/00 (2006.01)
CPC H04S 7/303 (2013.01) [H04R 5/04 (2013.01); H04S 3/002 (2013.01); H04S 7/307 (2013.01); H04R 2499/13 (2013.01); H04S 2400/13 (2013.01); H04S 2420/01 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A signal generating apparatus comprising:
a memory configured to store instructions; and
a processor communicatively connected to the memory and configured to execute the stored instructions to function as:
a first generator configured to generate a processed signal by adjusting frequency characteristics of an audio signal representative of a sound from a virtual sound source based on a Head-Related Transfer Function (HRTF) corresponding to a target position of the virtual sound source;
a second generator configured to:
generate, based on the processed signal, a plurality of output signals in one-to-one correspondence with a plurality of loudspeakers; and
perform panning processing to adjust a level of each output signal of the plurality of output signals based on the target position; and
a third generator configured to generate the audio signal by expanding a frequency bandwidth of a signal indicative of a sound,
wherein the first generator is configured to generate the processed signal by adjusting the frequency characteristics of the audio signal generated by the third generator based on the HRTF corresponding to the target position.