JPH0974596A - Simple wind noise monitor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recognize a wind noise level by a photographer by detecting the wind noise level of the output of a microphone and displaying the wind noise level according to the detection level. SOLUTION: This device has a detection means 15 detecting a microphone wind noise level, a means 16 controlling a display control part according to the detected noise level, a display means 17 displaying the noise level by being controlled, a band limit means 14 for reducing wind noise and a switch means 13 for turning on/off for reducing wind noise. In this constitution, when a great number of low-pass components exist, in particular, in the signal for which a collecting sound is performed by a microphone 11, the components are judged to be wind noise components and the components are detected. The detection signal is transmitted as information to a display control part 16. As a result, a photographer can be transmitted so as to turn on or off a noise reduction circuit 14 in the outside case of a camcorder or the screen of an EVF.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind noise level monitor device for a microphone used for a video integrated with a camera.

[0002]

2. Description of the Related Art Conventionally, in a camera-integrated video in which a wind noise reduction circuit is not automatically switched, a low frequency range mainly including a wind noise component is included in a voice band at the discretion of the photographer depending on the wind condition during the photographing. The high pass filter that cuts the side was turned on / off.

[0003]

However, in the above-mentioned conventional example, in order to turn on / off while confirming the level of wind noise, it is necessary to connect a headphone output or line-out voice to a monitor device. In a situation where these devices cannot be connected, there is no choice but to switch them by the photographer's sensory judgment.

A first object of the present application is to make a photographer recognize a situation to be turned on / off without connecting a special monitor device.

[0005]

In order to achieve the above object, the invention according to the present application detects a wind noise level of a microphone output and causes a display control unit to control a display corresponding to the detected noise level. The inside of the EVF and the exterior of the camcorder main body are used to let the photographer recognize the level of wind noise, and inform the photographer of the situation in which the wind noise reduction circuit should be turned on / off.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The simple wind noise monitoring device of the present invention is provided with means for detecting a microphone wind noise level, and means for controlling a display control unit according to the detected noise level. It has a display means for displaying the noise level, a band limiting means for reducing the wind noise, and a switching means for turning on / off the wind noise.

In the above structure, particularly when the low frequency component is extremely large in the signal picked up by the microphone, it is judged and detected as the wind noise component. The detection signal is sent as information to the display control unit, thereby telling the photographer to turn on or off the wind noise reduction circuit in the exterior of the camcorder main body or in the screen of the EVF.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a view best showing the features of the present invention. In FIG. 1, 11 is a microphone for collecting sound, 12 is a microphone amplifier for amplifying the output of the microphone 11, and 13 is wind noise. A switch for turning on / off the reduction circuit, 14 a wind noise reduction circuit for reducing wind noise, 15 a wind noise level detection circuit for detecting a wind noise level, 16 a wind noise level detection circuit 15 The display control circuit 17 controls the display based on the output from the display unit 17, and the display 17 controls the wind noise level.

Next, a display example on the EVF is shown in FIG. WI
The ND LEVEL is represented by 3 dots as shown in FIG. The display changes depending on the wind level, where 1 is green, 2 is yellow, and 3 is red. When the changeover switch 13 (wind cut SW) is turned on, the display on the EVF changes from the level meter to "WC" ON. Then, the wind noise reduction circuit 14 operates.

FIG. 2B shows WIND LEVEL.
Is represented by a windmill pattern as shown in FIG. EV
F changes its color between green, yellow and red depending on the wind level. It is even better if the design can be rotated. When the changeover switch 13 (wind cut SW) is turned ON, the display on the EVF changes from the windmill to'WC 'ON.

[0011]

As described above, according to the present invention,
It is possible to let the photographer recognize the situation where the wind noise reduction circuit should be turned on / off without connecting a special device for monitoring the wind noise level to the main body of the camcorder.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a configuration of a block according to an embodiment of the present invention.

FIG. 2 is a diagram showing a display example on an EVF according to an embodiment of the present invention.

[Explanation of symbols]

 11 Microphone 12 Microphone Amplifier 13 Changeover Switch 14 Wind Noise Reduction Circuit 15 Wind Noise Level Detection Circuit 16 Wind Noise Level Display Control Circuit 17 Wind Noise Level Display

Claims (1)

[Claims] 1. A means for detecting a microphone wind noise level, a means for controlling a display control unit according to the detected noise level, a display means for displaying the noise level by being controlled, and a wind noise reduction. And a wind noise reduction circuit on / off switching means, and a wind noise simple monitor device.