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Signal measurement correction system and correction method thereof

A signal measurement and correction method technology, applied in the field of signal processing, can solve problems such as distortion of measurement results, interference of measurement results of playback signals, and influence on the effect of two-channel balance, so as to achieve the effect of improving accuracy and eliminating interference.

Active Publication Date: 2021-03-30
ACER INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the environment in which the user is located is not in a quiet anechoic room, and the measurement results of the broadcast signal may be disturbed by external sounds
These interferences will distort the measurement results, and the distortion will further affect the effect of the two-channel balance

Method used

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  • Signal measurement correction system and correction method thereof
  • Signal measurement correction system and correction method thereof
  • Signal measurement correction system and correction method thereof

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Embodiment Construction

[0037] figure 1 It is a schematic diagram of a correction system 1 for signal measurement according to an embodiment of the present invention. Please refer to figure 1 , the correction system 1 includes but not limited to a speaker device 10 , a sound collection device 30 and a processing device 50 .

[0038] The speaker device 10 may be a device for playing sound such as a horn (speaker), a loudspeaker, or the like.

[0039] The sound receiving device 30 may be a microphone (eg, dynamic, condenser, electret condenser, etc.) or other electronic devices capable of receiving sound waves and converting them into sound signals.

[0040] The processing device 50 may be a desktop computer, a notebook computer, a smart phone, a tablet computer, or a server. The processing device 50 includes at least a processor (for example, a central processing unit (Central Processing Unit, CPU), or other programmable general purpose or special purpose microprocessor (Microprocessor), digital si...

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Abstract

The embodiment of the invention provides a signal measurement correction system and a correction method thereof. In the method, a transmission signal and a reception signal are respectively divided into a plurality of transmission signal groups and a plurality of reception signal groups according to time length. The received signal is related to a signal received after the transmission signal is sent out, and the transmission signal is a periodic signal. A plurality of evaluation groups are selected from the received signal groups according to the correlation between the transmitted signal groups and the received signal groups; and this correlation corresponds to a delay between the transmit signal and the receive signal. The signal energy of the received signal is determined according tothe signal energy of the evaluation groups; and therefore, the accuracy of the measurement signal can be improved.

Description

technical field [0001] The invention relates to a signal processing method, in particular to a signal measurement correction system and a correction method thereof. Background technique [0002] In order to achieve the effect of dual-channel balance, the existing technology measures the energy state of the dual-channel for the sine wave of the center frequency of each frequency band, and then defines the appropriate target gain for each frequency according to the characteristics of the sound field, and adjusts the dual-channel Channel equalization (Equalization, EQ) is used to approximate the target gain, thereby achieving the effect of dual-channel balance. [0003] However, the user's environment is not in a quiet anechoic room, and the measurement results of the broadcast signal may be disturbed by external sounds. These interferences will distort the measurement results, and the distortion will further affect the effect of the two-channel balance. Contents of the inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04S7/00H04S1/00
CPCH04S7/301H04S7/00H04S1/00
Inventor 杜博仁张嘉仁曾凯盟
Owner ACER INC
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