Noise sound quality evaluation method based on human-computer interaction interface
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A technology of human-computer interaction interface and evaluation method, which is applied in the field of noise sound quality evaluation based on human-computer interaction interface, to achieve the effect of shortening the research and development cycle, broad application prospects and theoretical significance
Inactive Publication Date: 2019-04-23
CENT OF EXCELLENCE FOR ADVANCED MATERIALS
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[0004] Aiming at the problem that the existing technology only considers the sound pressure level of the noise when evaluating the noise of mechanical products, and there are limitations in the evaluation of the noise, the embodiment of the present invention provides a noise sound quality evaluation method and system based on the human-computer interaction interface , comprehensively use psychoacoustic indicators to replace the traditional sound pressure level for noise evaluation, and combine the subjective evaluation scores of noise audio files to obtain comprehensive evaluation results of noise sound quality, and the obtained noise sound quality evaluation results are more conducive to evaluation The impact of product noise on operators and the environment has broader application prospects and theoretical significance
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Embodiment 1
[0063] Such as figure 1 As shown, the noise sound quality evaluation method based on the human-computer interaction interface provided by the embodiment of the present invention includes the following steps:
[0065] S110: Calculating the psychoacoustic parameters loudness L, speech intelligibility AI, sharpness S and roughness R of the noise sound pressure time-domain signal;
[0066] S120: Substituting the psychoacoustic parameters loudness L, speech intelligibility AI, sharpness S and roughness R into the empirical formula F=a between objective psychoacoustic parameters and subjective evaluation scores 0 +a 1 L+a 2 AI+a 3 S + a 4 R, to obtain the subjective evaluation score F of the sound quality of the noise.
[0067] When there are multiple products that need to evaluate their noise and sound quality, the subjective evaluation scores of the noise and sound quality of...
Embodiment 2
[0117] Taking the range hood as an example, the noise sound quality evaluation method provided by the present invention will be described in detail below. The range hoods in this embodiment are 8 different range hoods.
[0118] Place the range hood in the anechoic room (semi-anechoic room is also acceptable), connect the power supply, install a microphone and data acquisition device for noise testing and recording. The schematic diagram of the test and the sound pressure time domain signal obtained from the test are shown in Fig. 2a and Figure 2b shown;
[0119] Created in MATLAB as Figure 3a The psychoacoustic parameters shown are calculated with the display module. Open the MATLAB software, click the New button, choose to create a blank GUI page, and then arrange it as Figure 3a The buttons, controls, lists and graphic display areas shown in the figure, and the established GUI is named Objective.fig;
[0120] written as Figure 3b The input file shown imports the m...
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Abstract
The invention discloses a noise sound quality evaluation method based on a human-computer interaction interface. The noise sound quality evaluation method includes the steps that a noise sound pressure time domain signal is obtained, and a noise audio file is recorded; the psychoacoustic parameter loudness L, the speech articulation AI, the sharpness S and the roughness R of the noise sound pressure time domain signal are calculated; the psychoacoustic parameter loudness L, the speech articulation AI, the sharpness S and the roughness R are substituted into a noise sound quality evaluation empirical formula F=a0+a1L+a2AI+a3S+a4R to obtain a subjective evaluation prediction score F of the noise sound quality. According to the noise sound quality evaluation method based on the human-computerinteraction interface, a determination method of coefficients in the noise sound quality evaluation empirical formula is provided, after the empirical formula is established, when the noise sound quality of a plurality of products needs to be evaluated, the subjective evaluation score of the noise sound quality of each product is predicted through the noise sound quality evaluation method and theempirical formula, and ranking is conducted according to the predicted subjective evaluation score, so that the noise sound quality of the products can be obtained.
Description
technical field [0001] The present invention relates to the technical field of product noise detection, in particular to a noise sound quality evaluation method and system based on a human-computer interaction interface. Background technique [0002] The noise of mechanical products, such as household appliances, vehicles, aircraft, etc., not only affects the user experience, but also has a significant impact on the physical and mental health of the human body. In engineering applications, acoustic microphones are often used to measure the sound pressure level of noise, and this index is used to evaluate the annoyance of noise. However, the sound pressure level cannot accurately reflect the human ear's perception of sound. For example, the sound emitted by the range hood during operation usually makes users feel uncomfortable, and the sound pressure level of its noise is between 50dB(A) and 65dB(A). However, the sound pressure level of the speakers in the home theater can ...
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