Signal processing apparatus, signal processing method, program, signal processing system, and communication terminal

• US 9,531,338 B2
• Filed: 02/01/2013
• Issued: 12/27/2016
• Est. Priority Date: 02/03/2012
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kemmochi, Chisato, Touyama, Keisuke, Inoue, Akira
• Primary Examiner(s): Kim, Paul S
• Assistant Examiner(s): Diaz, Sabrina
• Application Number:
  US13/756,975
• Publication Number:
  US 20130202131A1
• Time in Patent Office: 1,425 Days
• Field of Search: 381/101, 381/102, 381104-106, 381/109, 381/315, 381/314, 381/60, 381/56, 381/57
• US Class Current: 1/1
• CPC Class Codes: H03G 3/00 Gain control in amplifiers or frequency changers
• CPC Class Codes: H03G 5/005 of digital signals
• CPC Class Codes: H03G 5/165 Equalizers; Volume or gain control in limited frequency bands
• CPC Class Codes: H03G 9/005 of digital or coded signals
• CPC Class Codes: H03G 9/025 frequency-dependent volume compression or expansion, e.g. multiple-band systems H03G9/10, H03G9/18 take precedence
• CPC Class Codes: H04R 25/505 using digital signal processing
• CPC Class Codes: H04R 25/558 Remote control, e.g. of amplification, frequency

Abstract

There is provided a signal processing apparatus including a provision control unit that provides choices expressed subjectively and associated with control for an acoustic signal, and an output unit that outputs a predetermined choice selected from the provided choices.

Claims

1. A signal processing apparatus comprising:

circuitry configured to

display choices expressed subjectively and associated with control for an acoustic signal,

change a display aspect of one or more of the displayed choices from a first display aspect to a second display aspect, based on a feature amount of the acoustic signal,

output a predetermined choice selected from the displayed choices, and

change back from the second display aspect to the first display aspect, after the predetermined choice has been selected from the displayed choices.

2. The signal processing apparatus according to claim 1,

wherein the displayed choices are subjective senses and/or subjective requests to be handled.

3. The signal processing apparatus according to claim 1, wherein the circuitry is further configured to

calculate an adjustment parameter to adjust the acoustic signal of a processing object, based on individual parameters measured in advance, the selected predetermined choice, and the feature amount of the acoustic signal of the processing object.

4. The signal processing apparatus according to claim 3,

wherein the individual parameters are parameters showing aural characteristics.

5. The signal processing apparatus according to claim 3,

wherein the individual parameters are parameters showing characteristics of a microphone and/or a speaker.

6. The signal processing apparatus according to claim 1, wherein the feature amount corresponds to pitch information included in the acoustic signal, a spectrum position of maximum power of a power spectrum, or a cepstrum coefficient of the power spectrum.

7. A signal processing method comprising:

displaying choices expressed subjectively and associated with control for an acoustic signal;

changing a display aspect of one or more of the displayed choices from a first display aspect to a second display aspect, based on a feature amount of the acoustic signal;

outputting a predetermined choice selected from the displayed choices; and

changing back from the second display aspect to the first display aspect, after the predetermined choice has been selected from the displayed choices.

8. A signal processing apparatus comprising:

circuitry configured to

change a display aspect of one or more displayed choices that are expressed subjectively and associated with control for a provided acoustic signal of a processing object, based on a feature amount of the provided acoustic signal,

acquire an adjustment parameter calculated based on individual parameters measured in advance, a displayed choice selected from the displayed choices, and the feature amount of the acoustic signal of the processing object, and

adjust the acoustic signal of the processing object, based on the acquired adjustment parameter, wherein

when the adjustment parameter is acquired by the circuitry in a use state of the adjustment parameter accumulated in a first buffer, the circuitry accumulates the acquired adjustment parameter in a second buffer and then switches the use state into a use state of the adjustment parameter accumulated in the second buffer.

9. The signal processing apparatus according to claim 8,

wherein the circuitry includes the first buffer and the second buffer that accumulate the adjustment parameter.

10. The signal processing apparatus according to claim 8, wherein the circuitry is further configured to

analyze the acoustic signal of the processing object and calculate the feature amount of the acoustic signal.

11. The signal processing apparatus according to claim 8, wherein the circuitry is further configured to calculate the adjustment parameter.

12. A signal processing method comprising:

changing a display aspect of one or more displayed choices that are expressed subjectively and associated with control for a provided acoustic signal of a processing object, based on a feature amount of the provided acoustic signal;

acquiring, by circuitry, an adjustment parameter calculated based on individual parameters measured in advance, a displayed choice selected from the displayed choices, and the feature amount of the acoustic signal of the processing object; and

adjusting the acoustic signal of the processing object, based on the acquired adjustment parameter, wherein

when the adjustment parameter is acquired by the acquiring in a use state of the adjustment parameter accumulated in a first buffer, accumulating the acquired adjustment parameter in a second buffer and then switching the use state into a use state of the adjustment parameter accumulated in the second buffer.