US 12,356,176 B2
Sound processing method, sound processing apparatus, and non-transitory computer-readable storage medium storing sound processing program
Akihiro Miwa, Kosai (JP); and Kenichi Tanaka, Hamamatsu (JP)
Assigned to Yamaha Corporation, Hamamatsu (JP)
Filed by Yamaha Corporation, Hamamatsu (JP)
Filed on Nov. 21, 2022, as Appl. No. 17/990,853.
Application 17/990,853 is a continuation of application No. PCT/JP2021/019295, filed on May 21, 2021.
Claims priority of application No. 2020-090333 (JP), filed on May 25, 2020.
Prior Publication US 2023/0082731 A1, Mar. 16, 2023
Int. Cl. H04S 7/00 (2006.01); G06T 7/73 (2017.01); G06T 11/00 (2006.01)
CPC H04S 7/302 (2013.01) [G06T 7/73 (2017.01); G06T 11/00 (2013.01); H04S 2400/11 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A sound processing method comprising:
obtaining an image of an acoustic space;
setting a plane in the acoustic space using the image;
setting a virtual speaker in the image of the acoustic space;
calculating sound pressure distribution to the plane using characteristics of the virtual speaker;
generating a composite image by overlapping an image showing the sound pressure distribution and an image of the plane;
setting a listening position in the image of the acoustic space;
calculating propagation characteristics of a sound emitted from the virtual speaker to the listening position, corresponding to the sound pressure distribution;
generating audio data at the listening position using the propagation characteristics of the sound and original sound data to be made audible;
detecting an image capturing position at which the image is captured; and
setting the image capturing position to be the same as the listening position.