Volume control apparatus, methods and programs for the same
AssigneeNippon Telegraph and Telephone Corporation
InventorsKazunori KOBAYASHI, Shoichiro SAITO, Hiroaki ITO
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Abstract
Provided are a volume control apparatus capable of appropriately controlling a sound volume even immediately after start of utterance, an associated method, and a program. The volume control apparatus includes a recognition unit that recognizes a predetermined voice command for use in starting voice recognition, a gain setting unit that sets a gain for an audio signal X of a target of the voice recognition, by use of an audio signal related to the predetermined voice command uttered by a user, and an adjustment unit that adjusts a sound volume of the audio signal X, by use of the gain.
Claims7
A volume control apparatus comprising:
- processing circuitry configured to:
- recognize a predetermined voice command for use in starting voice recognition;
- execute a gain setting processing in which the processing circuitry sets a gain for an audio signal X of a target of the voice recognition, by use of an audio signal related to the predetermined voice command uttered by a user;
- and
- adjust a sound volume of the audio signal X, by use of the gain.
A volume control apparatus comprising:
- processing circuitry configured to:
- detect a predetermined operation to be performed in starting voice recognition;
- execute a gain setting processing in which the processing circuitry sets a gain g(n) for an n-th audio signal X(n) of a target of voice recognition of a voice uttered by a user, by use of an (n−1)-th audio signal X(n−1) of the target of the voice recognition of the voice uttered by the user;
- adjust a sound volume of the audio signal X(n), by use of the gain g(n), in a case where the predetermined operation is detected;
- and
- recognize the voice of the audio signal X(n) having the sound volume adjusted, in the case where the predetermined operation is detected.
A volume control method, implemented by a volume control apparatus that includes processing circuitry, comprising:
- a recognition step in which the processing circuitry recognizes a predetermined voice command for use in starting voice recognition,
- a gain setting step in which the processing circuitry sets a gain for an audio signal X of a target of the voice recognition, by use of an audio signal related to the predetermined voice command uttered by a user, and
- an adjustment step in which the processing circuitry adjusts a sound volume of the audio signal X, by use of the gain.
A volume control method, implemented by a volume control apparatus that includes processing circuitry, comprising:
- a detection step in which the processing circuitry detects a predetermined operation to be performed in starting voice recognition,
- a gain setting step in which the processing circuitry sets a gain g(n) for an n-th audio signal X(n) of a target of voice recognition of a voice uttered by a user, by use of an (n−1)-th audio signal X(n−1) of the target of the voice recognition of the voice uttered by the user,
- an adjustment step in which the processing circuitry adjusts a sound volume of the audio signal X(n), by use of the gain g(n), in a case where the predetermined operation is detected, and
- a voice recognition step in which the processing circuitry recognizes the voice of the audio signal X(n) having the sound volume adjusted, in the case where the predetermined operation is detected.
Dependencies are inferred from the claim text.