Voice analysis device, voice analysis method, voice analysis program, and system integration circuit

An analysis device and sound technology, applied in speech analysis, measurement device, speech recognition, etc., can solve the problem of distracting the driver's attention, and achieve the effect of improving robustness, improving real-time performance, and realizing utilization.

Inactive Publication Date: 2010-01-27
PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, it is also conceivable that since the exact situation cannot be conveyed to the sender, the sender repeatedly redials,

Method used

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  • Voice analysis device, voice analysis method, voice analysis program, and system integration circuit
  • Voice analysis device, voice analysis method, voice analysis program, and system integration circuit
  • Voice analysis device, voice analysis method, voice analysis program, and system integration circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0089]

[0090] The audio analysis device 100 according to the present invention is provided in a mobile phone 1, for example. figure 1 It is a functional block diagram showing the configuration of the mobile phone 1 . Such as figure 1 As shown, the mobile phone 1 includes a voice signal receiving unit 10 , a voice analysis device 100 , a recording unit 20 , an incoming signal need determination unit 30 , and a mode setting unit 40 .

[0091] The sound signal collecting unit 10 is specifically configured to include a microphone, and sends the sound signal acquired by the microphone to the sound analysis device 100 .

[0092] Voice analysis device 100 determines the surrounding environment of mobile phone 1 based on the voice signal input from voice signal receiving unit 10 , and sends the determination result to recording unit 20 and incoming tone necessity determination unit 30 as environmental information.

[0093] The recording unit 20 records environmental information ...

Embodiment approach 2

[0137] In Embodiment 1, the determination object interval set by the time interval setting unit 122 is a fixed value of 30 seconds, but in this embodiment, the determination object interval (hereinafter referred to as “time shift” of the power spectrum of the sound signal) is set according to the time shift of the power spectrum of the sound signal. "part").

[0138]

[0139] Figure 9 It is a functional block diagram of the audio analysis device 100a in this embodiment. Such as Figure 9 As shown, the audio analysis device 100 a includes a power spectrum calculation unit 130 in addition to the components of the audio analysis device 100 in the first embodiment. In addition, the event division point determination unit 120 a is configured to include a segment determination unit 126 instead of the time interval setting unit 122 in the first embodiment.

[0140] The power spectrum calculation unit 130 calculates the power spectrum of the audio signal input from the audio sig...

Embodiment approach 3

[0155] In Embodiment 1, when the rate of change in the category occupancy of two determination target sections that are temporally located before and after the change exceeds the threshold value, it is regarded as an environmental change, and this time is detected. However, it can be assumed that there is no user action The possibility of environmental changes is low. Therefore, in the present embodiment, the audio analysis device has a configuration for detecting user motion, performs environment judgment when the user is in motion, and detects the timing of the environmental change when the environment changes.

[0156]

[0157] Figure 12 It is a functional block diagram of the audio analysis device 100b in this embodiment. Such as Figure 12 As shown, the voice analysis device 100b includes a motion detection unit 140 in addition to the constituent elements of the voice analysis device 100 in the first embodiment. In addition, the event segmentation point determinatio...

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Abstract

A voice analysis device includes: an acoustic parameter calculation unit which collects a voice signal and calculates an acoustic parameter for each time unit; a category decision unit which decides one of environment sound categories to which a partial voice signal of the unit time belongs; a section setting unit which sets from time to time, a judgment object section including a plurality of continuous time units along the time axis as the time elapses; and an environment judgment unit which judges the environment surrounding a local device in the judgment object section according to the number of environment sound categories contained in the judgment object section at least in the vicinity.

Description

technical field [0001] The present invention relates to a sound analysis device for judging the surrounding environment from a sound signal on a portable terminal, and particularly relates to an improved technology for improving the accuracy of environment judgment. Background technique [0002] Conventionally, a mobile communication terminal device disclosed in Patent Document 1 below is known as a voice analysis technique. The mobile communication terminal device compares the environmental noise collected by the microphone with the environmental noise samples registered in the terminal in advance, determines that the user holding the terminal is moving on a train or moving on a car, and when the phone is received, a notification and The response message corresponding to the judgment result. [0003] In addition, the transmission and reception restriction control system of a mobile terminal disclosed in Patent Document 2 below registers traffic noise inside the terminal in...

Claims

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Application Information

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IPC IPC(8): G10L11/00G01H3/00G10L15/10G10L25/27G10L25/51
CPCG10L15/02
Inventor 河村岳川西亮一
Owner PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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