US 8,553,893 B2Granted

Sound processing device, speaker apparatus, and sound processing method

AssigneeYamaha Corporation

InventorsMasaki Katayama, Naoya Moriya

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Abstract

A sound processing device includes an inputting section which inputs L-ch audio data and R-ch audio data, a delaying section which applies a delaying process to the L-ch audio data and the R-ch audio data for a delay time that is set in a range from 62.5 microsecond to 125 microsecond, an adding section which adds the delayed L-ch audio data to the inputted L-ch audio data, and which adds the delayed R-ch audio data to the inputted R-ch audio data, a phase adjusting section which adjusts a phase of the added L-ch audio data into a phase that is different from a phase of the input L-ch audio data, and which adjusts a phase of the added R-ch audio data into a phase that is different from a phase of the inputted R-ch audio data, and an outputting section which adds the L-ch audio data whose phase is adjusted by the phase adjusting section to the inputted R-ch audio data and outputs resultant R-ch audio data, and which adds the R-ch audio data whose phase is adjusted by the phase adjusting section to the inputted L-ch audio data and outputs resultant L-ch audio data.

Claims8

Dependent claims

A sound processing device comprising:

an inputting section that inputs L-ch audio data and R-ch audio data;
a delaying section that delays the L-ch audio data and the R-ch audio data by a delay time ranging from 62.5 microsecond to 125 microsecond;
a first adding section that adds the L-ch audio data delayed by the delaying section to the L-ch audio data input by the inputting section;
a second adding section that adds the R-ch audio data delayed by the delaying section to the R-ch audio data input by the inputting section;
a first phase adjusting section that adjusts a phase of the L-ch audio data added by the adding section into a phase that is inverted in phase from a phase of the L-ch audio data input by the inputting section;
a second phase adjusting section that adjusts a phase of the R-ch audio data added by the adding section into a phase that is inverted in phase from a phase of the R-ch audio data being input by the inputting section;
a first outputting section that adds the L-ch audio data whose phase is adjusted by the first phase adjusting section to the R-ch audio data input by the inputting section and outputs resultant R-ch audio data;
and
a second outputting section that adds the R-ch audio data whose phase is adjusted by the second phase adjusting section to the L-ch audio data input by the inputting section and outputs resultant L-ch audio data.

6 more elements

Dependencies are inferred from the claim text.