Yamaha Corporation

Futoshi Shirakihara

Tadashi Morikawa

Kentaro Noto

Hiraku Okumura

Katsumi Ishikawa

Tsukasa Suenaga

Akihiro Miwa

A live data distribution method obtains first sound source information according to sound of a first sound source generated at a first location of the first venue and position information of the first sound source, and second sound source information according to a second sound source including an ambient sound generated at a second location of the first venue, as distribution data, distributes the distributed data to the second venue, and renders the distribution data and providing first sound of the first sound source having been performed with localization processing based on the position information of the first sound source, and second sound of the second sound source, at the second venue.

Live data distribution method, live data distribution system, and live data distribution apparatus

A live data distribution method obtains information on a sound source according to sound generated at the first venue, and information on space reverberation, as distribution data, distributes the distribution data to the second venue, and renders the distribution data and providing sound according to the distribution data at the second venue.

A sound signal output method of outputting sound to a plurality of areas comprises obtaining a sound signal of a sound source, receiving a setting of reproduction information indicating whether or not to output the sound signal of the above-mentioned sound source to each of the plurality of areas where the above-mentioned sound signal is to be output, and outputting the above-mentioned reproduction information and the above-mentioned sound signal, or reproducing the above-mentioned sound signal based on the above-mentioned reproduction information.

Sound signal output method and sound signal output device

An information processing method includes: receiving first space information including a first coordinate system of one of a logical space or a physical space, and second space information including a second coordinate system of the other of the logical space or the physical space; receiving first sound localization information indicating a position where a sound image is to be localized in the first coordinate system; and transforming the first sound localization information into second sound localization information indicating a position where the sound image is to be localized in the second coordinate system.

Information processing method, information processing device, and non-transitory storage medium

An audio processing apparatus has a setting processor that sets a size of a virtual sound source; and a signal processor that generates an audio signal by imparting to an audio signal a plurality of head-related transfer characteristics. The plurality of head-related transfer characteristics corresponds to respective points within a range that accords with the size set by the setting processor from among a plurality of points, with each point having a different position relative to a listening point.

Audio processing method and audio processing apparatus

A reverberant sound adding apparatus includes a noise generator configured to generate a noise, an impulse noise generator configured to generate an impulse noise comprising an impulse sequence with random time intervals, an addition noise generator configured to generate an addition noise by adding the noise to the impulse noise, an impulse response generator configured to generate a modified impulse response by multiplying the addition noise by an amplitude characteristic of an impulse response that indicates acoustic characteristics of a space, and an impulse response convolver configured to convolve an input audio signal with the modified impulse response.

Reverberant sound adding apparatus, reverberant sound adding method, and reverberant sound adding program

In an impulse response processing device, a waveform dividing part divides a waveform of an original impulse response into a plurality of blocks on a time axis. A time adjusting part performs a time adjustment to reduce a time difference between successive ones of the blocks. A waveform synthesizing part generates a waveform of a new impulse response by adding the blocks on the time axis after the time adjustment by the time adjusting part. Further, a windowing part performs a windowing process to multiply each block by a window function having a window width corresponding to a width of the block, a function value of the window function decreasing from a center to both ends of the block. The waveform synthesizing part generates the new impulse response using the blocks after the windowing process by the windowing part.

Impulse response processing device, reverberation applying device and program

An impulse response processing apparatus is composed of a waveform divider, a time adjuster, an interpolation processor and a waveform synthesizer. The waveform divider divides an impulse response into a plurality of base blocks on a time axis. The time adjuster increases a time difference between two adjacent ones of the plurality of the base blocks. The interpolation processor generates an interpolation block. The waveform synthesizer generates a new impulse response by arranging the interpolation block between the two adjacent base blocks generated through adjustment of the time adjuster.

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Hamamatsu, Japan

Futoshi Shirakihara