Video-audio recording apparatus and method, and video-audio reproducing apparatus and method

A sound recording and sound technology, applied in the direction of binaural system, stereo system, quasi-stereo system, etc., can solve the problems of unable to record sound, difficult to obtain, and unable to obtain effects, etc.

Active Publication Date: 2007-10-31
VICTOR CO OF JAPAN LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the video and audio recording and reproducing device disclosed in the above-mentioned document on which a binaural microphone is installed on the device itself, if the width of the device itself, that is, the distance between the left and right microphones is not at the same level as the head of a person, it will not be possible to record Live sound
The video and sound recording and reproducing devices produced in recent years have been miniaturized along with the progress of high-density recording technology, digital signal recording technology and image compression processing technology, so even if the video and sound recording and reproducing device itself is installed with a two-channel sound collection the purpose of the microphone, also can not get the desired effect
In addition, since the shape of the device is quite different from that of the human head, it is considered difficult to obtain the effects disclosed in the above documents.

Method used

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  • Video-audio recording apparatus and method, and video-audio reproducing apparatus and method
  • Video-audio recording apparatus and method, and video-audio reproducing apparatus and method
  • Video-audio recording apparatus and method, and video-audio reproducing apparatus and method

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no. 1 approach

[0076] FIG. 1 is a perspective view showing an example of the external configuration of an audiovisual recording and reproducing apparatus 101 according to the first embodiment.

[0077] The audiovisual recording and reproducing apparatus 101 shown in FIG. 1 has an imaging unit 11, a display unit 17, built-in stereo microphones 21a and 21b, and an external microphone connection terminal 32. The earphone type binaural microphone 3 having non-directional left and right microphones 31a and 31b is detachably connected to the external microphone connection terminal 32. Here, the state where the binaural microphone 3 and the external microphone connection terminal 32 are connected is illustrated. The microphones 31a and 31b have diaphragms inside. As described in detail later, the audiovisual recording and reproducing apparatus 101 can selectively perform photography (audio recording) using the built-in stereo microphones 21a and 21b and photography (audio recording) using the binaural ...

no. 2 approach

[0179] The photographer 300 wears the two-channel microphones 3 on the left and right ears 302 to collect sound while capturing images of the object, and records to the recording medium 44, so that the viewer 59 can listen to the omnidirectional view of the photographer 300 during the shooting. Surrounding sounds. However, the image taken by a normal audiovisual recording and reproducing device (camera) is an image within approximately 60 degrees in front of the camera. When performing zooming photography, take a smaller angle of view. Therefore, when performing zooming photography, it is desirable to enhance the sound emitted from the vicinity of the magnified object to collect the sound. In the second embodiment, when the object is amplified, the sound near the object is also enhanced to collect and record the sound.

[0180] FIG. 28 shows an audiovisual recording and reproducing apparatus 102 provided with an audio scaling processing unit according to the second embodiment, and...

no. 3 approach

[0208]The second embodiment performs sound amplification processing on the recording side, but the third embodiment performs sound amplification processing on the reproduction side. In the audiovisual recording and reproducing device 103 of the third embodiment shown in FIG. 41, components having the same functions as those of the audiovisual recording and reproducing device 101 of the first embodiment shown in FIG. 3 are given the same symbols, and The description is omitted. The audiovisual recording and reproducing device 103 is different from the audiovisual recording and reproducing device 101 in that an audio scaling processing unit 33b is provided at the rear end of the separation unit 15 and a zoom magnification detector 331 is provided at the front end of the multiplexing unit 13. In addition, in FIG. 41, the illustration of the headset 55 and the sound output terminal 37c as the connection terminal of the headset 55 is omitted.

[0209] The operation of the audiovisual r...

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Abstract

A video/audio recording/reproducing apparatus (101) has an internally-mounted stereo microphones (21a,21b) and an external microphone connection terminal (32). The external microphone connection terminal (32) is connected to binaural microphones (3) to be attached to the ears of a recording user (300). In a case of collecting ambient sounds by use of the binaural microphones (3), the user switches the audio signals to be recorded in a recording medium from the audio signals obtained from the internally-mounted stereo microphones (21a,21b) to the binaural audio signals obtained from the binaural microphones (3). The recording user (300) attaches the binaural microphones (3(31a,31b)) to his ears to collect sounds around him including sounds generated from an imaged subject. A camera part (11) images the subject. The binaural audio signals, video signals obtained by imaging the subject, and binaural flag signals are recorded into the recording medium.

Description

Technical field [0001] The present invention relates to a video and audio recording device and method for recording video signals and audio signals, and a video and audio reproducing device and method for reproducing video signals and audio signals recorded in a recording medium. The video signal is an image of an object. The obtained video signal, the above-mentioned sound signal is a sound signal obtained by collecting the sound around the photographer including the sound emitted by the object, and particularly relates to a video that can reproduce the captured video and live sound. Sound recording device and method, and video and sound reproduction device and method. Background technique [0002] Video and audio recording and reproducing devices (so-called video cameras) that record video signals obtained by photographing a subject and sound signals obtained by collecting sounds around the photographer including the sound emitted by the subject are spreading. This type of audi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04S5/02H04S1/00H04S7/00
Inventor 村田寿子铃木琢磨安良定浩羽石实希长谷川胜巳相崎正子藤浪喜久武田正美菅原隆幸
Owner VICTOR CO OF JAPAN LTD
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