Sound signal processing device and sound signal processing method

An audio signal processing and audio signal technology, applied in the field of audio signal processing devices, can solve the problems of characteristic change, the microphone cannot maintain characteristics, etc., and achieve the effect of high sense of presence

Inactive Publication Date: 2008-03-05
SONY CORP
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Problems solved by technology

[0011] As one of the solutions to this problem, for the microphone 2R connected to the rear two-channel audio input terminal, by inverting it up and down, it is possible to convert the right channel and the left channel, but the microphone is inverted up and down. Various characteristics will change, and some microphones cannot maintain the characteristics after inversion

Method used

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  • Sound signal processing device and sound signal processing method
  • Sound signal processing device and sound signal processing method
  • Sound signal processing device and sound signal processing method

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Embodiment 2

[0087] In this Embodiment 2, the present invention is applied to a camcorder that records audio signals on an optical disc through 5.1 channels. That is, FIG. 13 is a block diagram showing the camcorder 51 in the second embodiment. In this camcorder 51, the same configuration as that of the tape camcorder 12 described in FIG. 5 is denoted by the same reference numerals, and the description thereof will not be repeated.

[0088] In this camcorder 51, the audio input unit 52 acquires an audio signal and outputs it through two channels or 5.1 channels, and the recording and reproducing unit 53 controls the audio signal SA acquired by the audio input unit 52 and The encoded data of the video signal SV acquired by the imaging unit 15 is recorded on the optical disc 54 . The recording / reproducing unit 53 reproduces the encoded data recorded on the optical disc 54 and outputs the encoded data to the decoder 22 . According to the processing of these encoders 18, recording and reprod...

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Abstract

A sound signal processing device and a sound signal processing method are applied to, for instance, a video tape recorder having a built-in camera, for detecting the channel setting of a sound signal inputted from a plurality of sound signal inputting terminals (32F, 32R), and performing signal processing by switching a right channel with a left channel based on the detected results.

Description

technical field [0001] The invention relates to an audio signal processing device and an audio signal processing method, which can be applied to a tape camcorder, for example. In the present invention, by detecting the channel setting of the audio signal input by a plurality of audio signal input terminals, and converting the right channel and the left channel according to the detection result and performing signal processing, even if a plurality of stereo microphones are used for surround recording Even in this case, it is possible to accurately create a sound field with a high sense of presence. Background technique [0002] A tape camcorder in the prior art acquires a stereo two-channel audio signal through a built-in microphone, and records the two-channel audio signal and the camera result together on a magnetic tape. Regarding such a tape camcorder, for example, Japanese Patent Application Laid-Open No. 5-11650 proposes a method in which an audio signal reproduced fro...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04S5/02H04N5/225H04R3/00
CPCH04R5/04H04N5/85H04N5/772H04N9/8063H04R5/027H04N5/78263H04N9/8042H04R3/00G11B20/10G11B31/00H04N23/00
Inventor 中村晋治大畑匡弘
Owner SONY CORP
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