A debugging method and debugging system for hall audio-visual system
A technology of audio-visual system and debugging method, which is applied in the direction of electrical components, etc., and can solve the problems that the audio-visual system does not meet the requirements and cannot guarantee that the sound of the audio-visual system can meet the predetermined requirements, etc.
Active Publication Date: 2021-06-04
INTELLIGENT TECH CO LTD OF CHINESE CONSTR THIRD ENG BUREAU
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[0002] For the existing hall audio-visual system, the sound transmission gain, maximum sound pressure level, sound field unevenness and transmission frequency characteristics are measured after the construction is completed. According to the measured sound transmission gain, maximum sound pressure level, sound field unevenness and transmission frequency Characteristics Determine whether the construction of the audio-visual system meets the predetermined sound requirements. When there are certain defects in the parameter adjustment of the audio-visual system, the installation of the speaker position, and the location design, it is often impossible to ensure that the sound construction of the audio-visual system can meet the predetermined requirements, resulting in the final audio-visual system. have a high probability of not meeting the requirements
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[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0031] see figure 1 As shown, the embodiment of the present invention provides a debugging method for an audio-visual system in a hall. The audio-visual system includes a loudspeaker, an audio processor and a parametric equalizer. The debugging method includes the following steps:
[0032] Set the measurement positions of multiple speakers in the hall, and measure the measured values of the sound transmission gain, the maximum sound pressure level and the unevenness of the sound field of the speakers at different measurement positions;
[0033] According to the measurement value of the sound transmission gain, the maximum sound pressure level and the measurement value of the sound field unevenness of the loudspeaker at different measurement positions, as well as the standard value of the sound transmission gain, the standard value of the max...
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The invention discloses a debugging method and a debugging system for an audio-visual system in a hall, and relates to the technical field of audio-visual system debugging, comprising the following steps: setting a plurality of loudspeaker measurement positions in the hall, and measuring the sound transmission gain of the loudspeaker at different measurement positions The measured value of the maximum sound pressure level and the measured value of the unevenness of the sound field; calculate the reference value of the loudspeaker at different measurement positions; adjust the parameters of the audio processor and parametric equalizer, and measure different audio processors and parameters The measured value of the transmission frequency characteristic in the hall corresponding to the parameters of the equalizer; the measured value of the measured value of the transmission frequency characteristic is the smallest absolute value subtracted from the standard value of the transmission frequency characteristic, which is the optimal value of the transmission frequency characteristic The parameters of the audio processor and the parametric equalizer corresponding to the optimal value of the transmission frequency characteristic are obtained as actual parameters of the audio processor and the parametric equalizer, and the present invention can ensure that the sound construction of the audio-visual system meets predetermined requirements.
Description
technical field [0001] The invention relates to the technical field of audio-visual system debugging, in particular to a debugging method and a debugging system for a hall audio-visual system. Background technique [0002] For the existing hall audio-visual system, the sound transmission gain, maximum sound pressure level, sound field unevenness and transmission frequency characteristics are measured after the construction is completed. According to the measured sound transmission gain, maximum sound pressure level, sound field unevenness and transmission frequency Characteristics Determine whether the construction of the audio-visual system meets the predetermined sound requirements. When there are certain defects in the parameter adjustment of the audio-visual system, the installation of loudspeakers, and the location design, it is often impossible to ensure that the sound construction of the audio-visual system can meet the predetermined requirements, resulting in the fina...
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IPC IPC(8): H04R29/00
CPCH04R29/00H04R29/001
Inventor 白伟泽赵讶男齐晓健杜琳陈应李金生陈洋洋
Owner INTELLIGENT TECH CO LTD OF CHINESE CONSTR THIRD ENG BUREAU