94 results about "Audio analyzer" patented technology

A rhythm action game apparatus comprising an audio analyser adapted to analyze a music track and provide corresponding rhythm data, and a sequence generator adapted to generate game play cues according to said rhythm data. There is also disclosed a music processor comprising an audio analyser adapted to analyze a music track and provide corresponding rhythm data, and an audio post processor adapted to reconfigure the music track controlled by the rhythm data.

A system and method of testing the audio performance of an acoustic device is provided. To test a device microphone, an audio signal is generated, provided to an external speaker, outputted to the device microphone, and routed to an auxiliary input/output device where it is outputted and analyzed. To test a device speaker, an audio signal is generated, inputted to an auxiliary input/output device, routed to the device speaker, outputted to an external microphone, and outputted to an audio analyzer.

An auto voice trigger method and an audio analyzer employing the same are provided. The auto voice trigger method includes: receiving a signal by at least one resonator microphone included in an array of a plurality of resonator microphones with different frequency bandwidths; analyzing the received signal and determining whether the received signal is a voice signal; and when it is determined that the received signal is the voice signal, waking up a whole system to receive and analyze a wideband signal.

A system and a method for playback test of an audio device. The method includes the steps of: controlling an audio analyzer (3) connected to a host computer (2) to generate analog audio signals at different sampling frequencies, different sampling bit width and different signal amplitude, and controlling the audio analyzer to output the digital audio signals to a client computer (5) connected to the audio analyzer via an analog signal output interface (310); receiving the analog audio signals and converting the analog audio signals into first digital audio signals by a first sound card (6) to be tested inside the client computer; outputting the first digital audio signals to a digital signal input interface (311) of the audio analyzer; and controlling the audio analyzer to test and analyze the digital signals received at the digital signal input interface, and producing a test result.

The invention provides a bone conduction earphone test method. The method comprises the following steps: sending an audio test signal, and transmitting the audio test signal to a bone conduction earphone to be tested for vibration playing; collecting a vibration signal at the loudspeaker of the bone conduction earphone to be tested; analyzing and processing the acquired vibration signals; performing simulated face acoustic impedance operation on the analysis result to obtain frequency domain internal parameters of the bone conduction earphone to be tested; and judging a test result of the boneconduction earphone to be tested according to the parameters in the frequency domain. The invention further comprises a bone conduction earphone test system. The system comprises audio testing software, a Bluetooth module, a laser sensor, an audio analyzer and a power supply device. According to the invention, the bone conduction earphone can be tested, the precision is high, the operation is simple and convenient, and the production quality of the bone conduction earphone is effectively improved.

An embodiment of the invention discloses an automatic test system for network access of a set-top box, which comprises a digital television test signal generator, a digital television test transmitter, the set-top box, an audio analyzer, a video analyzer and a controller. The digital television test signal generator, the digital television test transmitter and the set-top box are respectively electrically connected with the controller, the controller is connected with the audio analyzer and the video analyzer via a USB (universal serial bus) and then a GPIB (general purpose interface bus). The digital television test signal generator is used for generating standard test signals, the digital television test transmitter is used for modulating the test signals into digital signals, the modulated digital signals serving as the test input signals are used for testing the set=top box, and the processed test signals are respectively transmitted to the corresponding video analyzer and the audio analyzer by the set=top box and then are analyzed and displayed. By the aid of the automatic test system for network access of the set-top box, parameters of the audio and the video can be tested automatically, human labor, time and hardware resources can be saved due to the fact that the system is operated by machine, and the testing efficiency can be improved.

The invention discloses a system for testing electronic magnetic interference susceptibility of an analog receiver. The system at least comprises a signal source I and a signal source II generating analog modulation signals, a signal source joint control circuit, a combiner, and an audio analyzer. The signal source I, the signal source II, the signal source joint control circuit and the audio analyzer are respectively connected with an IEEE-488 bus interface circuit connected with a computer. The signal source joint control circuit is connected with the signal source I and the signal source II. Both the signal source I and the signal source II are connected with the combiner. According to the system, the signal sources, the combiner, the audio analyzer and so on are integrated in one case, and only an input interface and an output interface are maintained, so that the tested receiver only needs to connect with two lines, and the connection becomes simpler. The signal source joint control circuit not only can control one or more signal sources at the same time, but also is connected with the IEEE-488 bus interface circuit, so that remote operation can be realized.

A method and system for training an audio analyzer (114) to identify asynchronous segments of audio types using sample data sets, the sample data sets being representative of audio signals for which segmentation is desired. The system and method then label asynchronous segments of audio samples, collected at the target site, into a plurality of categories by cascading hidden Markov models (HMM). The cascaded HMMs consist of 2 stages, the output of the first stage HMM (208) being transformed and used as observation inputs to the second stage HMM (212). This cascaded HMM approach allows for modeling processes with complex temporal characteristics by using training data. It also contains a flexible framework that allows for segments of varying duration. The system and method are particularly useful in identifying and separating segments of the human voice for voice recognition systems from other audio such as music.

The systems and techniques disclosed here feature a device including an audio analyzer connected to microphone(s) monitoring a conversation between one or more individuals. The audio analyzer can identify auditory expressions from audio captured by the microphone, where the auditory expressions can include linguistic expressions and nonlinguistic expressions. The audio analyzer can analyze the linguistic expressions to identify a topic and a time period when the topic was discussed. A video analyzer can be connected to camera(s) monitoring the conversation. The video analyzer can identify non-auditory expressions by the individuals from video captured by the camera. A sentiment analyzer can analyze auditory expressions during the time period when the topic was discussed and non-auditory expressions during the time period when the topic was discussed to determine sentiments to the topic. A processor can analyze the determined sentiments to the topic to determine a group sentiment to the topic.

The embodiment of the invention discloses an earphone and a noise reduction method, wherein the earphone comprises a collector, an audio analyzer, a controller and a noise reduction processor, whereinthe collector is used for collecting environment audio signals; the audio analyzer is connected with the collector and is used for analyzing the environment audio signals to determine noise attributes and identifying whether the environment audio signals contain pre-stored keywords; the controller is connected with the audio analyzer and is used for outputting a corresponding control signal according to the noise attributes and an identification result whether the pre-stored keywords are contained; and the noise reduction processor is respectively connected with the audio analyzer and the controller and is used for selecting one target noise reduction processing mode from a plurality of noise reduction processing modes according to the control signals and adopting the target noise reduction mode to carry out noise reduction processing on the environmental audio signals. According to the technical scheme provided by the embodiment of the invention, different noise reduction processingmodes can be adopted for processing different environmental noise, and the noise reduction effect is improved.

An apparatus for scanning radio waves including a scanner in operable communication with a radio receiver, the scanner further including a monitor module configured to scan a plurality of radio waves in real time. The monitor module is further configured to extract audio samples containing information. The scanner further includes a memory module in communication with the monitor module. The memory module is configured to receive the extracted audio sample data from the monitor module. The memory module is further configured to store the extracted audio sample data. The scanner further includes an audio analyzer module in communication with the memory module. The audio analyzer module is configured to analyze the extracted audio sample data and classify the extracted audio sample data into a particular content category. The scanner further includes a content aggregation module and a second memory module communicating with the content aggregation module.

The invention relates to a calibration method and a calibration device for a digital mobile communication general-purpose tester. Output power of a radiofrequency signal generator in the digital mobile communication general-purpose tester is calibrated through a frequency measuring function of a spectrum analyzer; output power of an audio signal generator in the digital mobile communication general-purpose tester is calibrated by a digital multimeter with a frequency meter function; level measurement accuracy of an audio analyzer in the digital mobile communication general-purpose tester is calibrated by a vector signal generator; output signal distortion of the audio signal generator in the digital mobile communication general-purpose tester is calibrated by the spectrum analyzer; and audio distortion measuring accuracy of an audio distortion analyzer in the digital mobile communication general-purpose tester is calibrated by the vector signal generator. Accordingly, the frequency meter, the audio signal generator, a distortion signal analyzer and a distortion signal generator are not required to be configured for the calibration device, cost is saved, configuration of the calibration device is simplified, and the calibration device is portable.

The invention discloses a sensitivity test method and a system based on a frequency modulation (FM) receiver of a mobile terminal. Sensitivity of the FM receiver of the mobile terminal is measured through a signal generator and a wireless general-purpose tester, sensitivity test is conducted by that an audio analyzer is replaced by an audio function of the wireless general-purpose tester, so that a testing person can quickly test the sensitivity of the FM receiver when conducting a radio frequency (RF) test item so as to improve test efficiency and bring great convenience.

The invention discloses an outdoor important facility safety protection device which comprises a fixed base, a supporting rod, a solar power generation panel and a computer control system. The computer control system comprises an audio analyzer, a sound memorizer, an image memorizer, an animal sound simulating device and an alarm. One side of the top end of the supporting rod is provided with a sound receiver, an infrared monitoring camera and a loudspeaker. One side of the middle of the supporting rod is provided with the solar power generation panel. The outdoor important facility safety protection device is simple in structure and practical in function; when unattended, some important outdoor devices are probably damaged by people or birds and beasts; when unallowed people break in, the device can execute safety protection through the infrared monitoring camera and the alarm; when damaged by birds and beasts, the device can send out sounds of corresponding natural enemies of the birds and beasts to frighten away the birds and beasts through the animal sound simulating device so that the important devices can be protected.

The invention provides an automatic audio test system which comprises a computer, a control panel, a plug wire jig, an audio channel switcher and an audio analyzer. The computer is electrically connected with the control panel, the audio channel switcher and the audio analyzer. The control panel, the plug wire jig, the audio channel switcher and the audio analyzer are electrically connected in sequence. The plug wire jig comprises a bearing platform, a driving device and a metal plate which is provided with a port signal line plug, wherein the driving device and the metal plate are arranged on the bearing platform. The driving device and the metal plate are fixedly connected. Datamation of testing results and automation of test processes are achieved, test time is short, production efficiency is high and production cost is reduced.

A method for playback test includes the steps of: controlling an audio analyzer (3) connected to a host computer (2) to generate digital audio signals at different sampling frequencies, different sampling bit width and different signal amplitude, and controlling the audio analyzer to output the digital audio signals to a client computer (5) connected to the audio analyzer; transmitting the digital audio signals to a sound card (7) inside the client computer without data loss; converting the digital audio signals into analog audio signals, and transmitting the analog audio signals to an analog signal input interface (311) of the audio analyzer; and controlling the audio analyzer to test and analyze the analog audio signals, and producing a test result. A related apparatus is also provided.

The invention discloses a multifunctional test platform of a loudspeaker. The multifunctional test platform comprises a table plate, four supporting legs are distributed on the lower surface of the table plate in an array mode. The left side of the upper surface of the table plate is connected with a fixing plate through a reinforcing plate; a baffle ring is arranged in a hole in the middle of theleft surface of the fixing plate; the left surface of the baffle ring is connected with a movable ring through a mounting stud; the loudspeaker is arranged in the middle of the movable ring, an audioanalyzer is arranged on the left side of the upper surface of the table plate; a power amplifier module is arranged on the upper surface of the audio analyzer; a positioning plate is arranged on theright side of the upper surface of the table plate; a positioning rod is arranged on the positioning plate; the multifunctional test platform of the loudspeaker is diverse in test function, when the types of the loudspeakers are large, the movable ring is detached, the loudspeakers are directly connected with the baffle ring, the loudspeakers of various types can be adapted and installed, the testeffect is good, the sound effects of different distances can be detected, data can be automatically recorded, and whether the loudspeakers are qualified or unqualified can be judged.

The invention discloses a method, a system and a device for determining sound quality of a speaker. The determining method comprises the following steps: S1, acquiring a pink noise signal of a standard sound pressure level transmitted by the signal generator to the speaker to be tested; S2, transmitting the pink noise signal to the audio analyzer to obtain a level value corresponding to the pink noise signal; S3, acquiring a specific test signal of a standard sound pressure level transmitted by the signal generator to the speaker to be tested; S4, transmitting the specific test signal to the audio analyzer to obtain a level value corresponding to the specific test signal; and S5, setting the level value of the pink noise signal as a reference value, and comparing the level value of the specific test signal with the reference value to identify the sound quality of the speaker. The technical solution of the invention is capable of effectively identifying the sound quality of the speaker,and effectively reducing the test errors.

The invention discloses a multi-audio parameter automatic test method and a test system. The system comprises an audio device to be tested, an audio analyzer, and an automatic test device which is intelecommunication connection with the audio device to be tested and the audio analyzer. When a test is started, the audio analyzer activates corresponding pre-set test items according to the test content of the audio device to be tested, and sends the test items to a processing module for performing analysis processing, wherein the processing module converts the received test items to corresponding test instructions and sends the test instructions to the audio device one by one; and the automatic test device transmits only one test instruction at a time so that the audio device to be tested can be tested once.