Method and system for testing echo cancellation of television audio acquisition device
A technology of audio collection and echo cancellation, applied in television, electrical components, image communication, etc., which can solve the problems of not providing or guaranteeing the echo cancellation function of audio collection device, communication of TV camera device, etc.
Active Publication Date: 2015-07-22
NINGBO SUNNY OPOTECH CO LTD
View PDF4 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] However, on the production line of the TV camera device, the TV camera device cannot communicate with the TV, so it cannot be ensured whether the audio collection device of the TV camera device on the production line has a normal echo cancellation function
If the TV is placed on the production line and the echo cancellation field test of the audio collection device of the TV camera device is carried out, the production cost will be greatly increased, and the operation is inconvenient
In addition, in the prior art, there is no fixture for conveniently positioning the TV camera device with the audio collection device in the echo cancellation test
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0051] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.
[0052] Such as Figure 1 to Figure 8 Shown is the echo cancellation test method and system thereof of the TV audio collection device 11 according to a preferred embodiment of the present invention, wherein said test system includes a sound source device 20, a signal converter 30, a loudspeaker 40, and a Test result analysis device 50. The TV audio collection device 11 is suitable for an image collector 12 to be assembled into a TV camera device 10 (TV C...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a method and a system for testing echo cancellation of a television audio acquisition device. The television audio acquisition device comprises one or more audio acquisition devices. The method comprises the steps that sound source analog signals are inputted into a signal converter; the signal converter outputs a first path of analog signals which is not converted and a second path of digital signals which is acquired by converting the sound source analog signals; the television audio acquisition device receives the first path of analog signals and the second path of digital signals, wherein the first path of analog signals is received by the audio acquisition devices; and whether the first path of analog signals and the second path of digital signal from the sound source analog signals are cancelled or not in output signals of the television audio acquisition device is detected. The testing method provided by the invention realizes detection for an echo cancellation function of the television audio acquisition device without being matched with a television through simulating communication between the television and the audio acquisition device.
Description
technical field [0001] The present invention relates to an audio testing method and system for a TV audio collection device, and in particular to a method of simulating communication between a TV and an audio collection device, so as to realize audio collection of a TV without a matching TV A detection method and system for the echo cancellation function of a device. Background technique [0002] The audio collection device used on the TV is usually assembled together with the image collection device into a TV camera device (TV Camera). For example, a common TV camera device generally includes a camera, a microphone, a signal processor, a connection interface, etc. The TV camera device can be connected to the TV through a wired or wireless connection, so that the TV camera device can communicate with the TV. The camera of the TV camera device is used to collect image information, and the microphone is used to collect audio information. After the collected image information ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/04
Inventor 茅武超柳高峰顾亦武倪垚锋
Owner NINGBO SUNNY OPOTECH CO LTD