Noise reduction headphone and method for testing and adjusting noise reduction parameters of headphone

Abstract

The invention discloses a noise reduction headphone. The noise reduction headphone comprises sound production units, pickup microphones, an audio divider and a noise reduction unit; the sound production units are used for playing audios; the pickup microphones are used for picking up noise audio signals in spaces, which the sound production units belong to; the audio divider is used for dividing input signals provided by the pickup microphones into two channels of signals; the noise reduction unit is used for generating noise reduction audio signals; the pickup microphones are positioned at one sides of the sound production units; the pickup microphones, the audio divider and the noise reduction unit are electrically connected in sequence; and the noise reduction unit is electrically connected to the sound production units. The invention further discloses a method using the headphone. The audio divider receives the input signals provided by the pickup microphones, and divides the inputsignals into two channels of signals to output; an external audio unit receives output signals of the audio divider, and obtains noise parameters; the external audio unit receives user requirements,performs noise parameter analysis, obtains noise reduction parameters, and outputs the noise reduction parameters to the noise reduction unit; and the noise reduction unit receives the output signalsin the audio divider and the output signals of the external audio units, generates noise reduction audios according to the noise reduction parameters, and then, outputs the noise reduction audios to the sound production units.

Description

technical field [0001] The invention relates to the technical field of noise reduction earphones, in particular to a noise reduction earphone and a method for testing and adjusting noise reduction parameters of the earphone. Background technique [0002] With the development of earphone technology and application requirements, noise-canceling earphones have gradually become an entertainment product in daily life from the special equipment used by pilots in the early days. In the existing commercial noise-cancelling earphone products, the noise-cancellation parameters in the technical specifications are obtained by the manufacturer according to the batch characteristics of specific products and tested under specific test conditions. [0003] However, the earphone testing equipment on the market has professional characteristics, and it is difficult for ordinary users to test the noise reduction parameters of the earphones, and the conditions for simulating the effect of wearin...

AI Technical Summary

Problems solved by technology

[0003] However, the earphone testing equipment on the market has professional characteristics, and it is difficult for ordinary users to test the noise reduction parameters of the earphones, and the conditions for simulating the effect of wearing the earphones in the test equipment used by the manufacturer are also different from the user's own test conditions and earphone wearing conditions. They cannot be completely equated, making it difficult for users to optimize and adjust the noise reduction parameters of the earphones to suit their own audio response characteristics

Images