Binaural recording device

Abstract

The invention provides a binaural recording device. The binaural recording device is characterized by comprising a sphere structure (1) used for simulating a human head contour; left and right simulation auricula structures (21, 22) are installed on left and right sides of the sphere structure (1); left and right microphones (31, 32) are installed in auricula inlets or auditory meatuses for collecting holographic sound field signals; a circuit board (5) is further packaged in the sphere structure (1), is provided with a signal processing circuit for processing the signals picked up by the left and right microphones (31, 32), and is further provided with a Bluetooth wireless transceiver module used for sending microphone signals to an external terminal or receiving a Bluetooth audio signal from the external terminal; a rechargeable battery (6) is further packaged for supplying power to the components; and a button (4) is further arranged on the sphere structure (1) for operating and controlling the recording device. Binaural signals can be conveniently collected by the device, and the signal transmission fidelity is greatly enhanced in cooperation with a high-definition Bluetooth audio transmission scheme.

Description

Technical field [0001] The invention belongs to the field of electroacoustics, and particularly relates to a binaural recording device. Background technique [0002] Traditional recording methods include single microphone recording and stereo recording (AB, XY, MS, ORTF). Single microphone recording is the easiest, but the sound field is also the most monotonous; the original intention of stereo recording is to create a richer stereo field. There are many ways to configure the microphone, all trying to simulate the perception characteristics of human ears. , Such as delay, amplitude difference, phase, etc. However, it is difficult to simulate the real human ear perception only by the placement of the microphone. [0003] The emergence of binaural recording technology has made up for the shortcomings of traditional recording. Some recording products using binaural technology have also appeared in the prior art, such as recording artificial heads. However, these products have comple...

AI Technical Summary

Problems solved by technology

Single-mic recording is the easiest, but the sound field is also the most monotonous; the original intention of stereo recording is to create a richer stereo field, and there are various ways of microphone configuration, all of which try to simulate the perception characteristics of human ears to sound , such as delay, amplitude difference, phase, etc. However, it is difficult to simulate the real human ear perception only by the position of the microphone

[0003] The emergence of binaural recording technology has made up for the shortcomings of traditional recording. In the prior art, some recording products using binaural technology have also appeared, such as recording artificial heads, etc., but these products have complex structures and are connected by wired connections. It is also necessary to connect the mobile terminal through the conversion interface, which brings a lot of inconvenience to the binaural recording. In addition, the binaural signal recorded by the traditional recording artificial head product will still cause the problem of blurred sound and image when replayed.

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