162 results about "Automatic sounding" patented technology

An automatic sound field correcting device executes a signal process to the plurality of audio signals on respective correspondent signal transmission paths, and outputs them to a plurality of correspondent speakers to correct sound characteristics on the respective signal transmission paths. Namely, a measurement signal is supplied to each signal transmission path, and a measurement sound corresponding to it is outputted from the speaker to a sound space. The outputted measurement sound is detected as a detecting signal. The frequency characteristic of the audio signal on each signal transmission path is corrected by an equalizer, and a gain value of the equalizer is determined by a correction amount determining unit. A frequency characteristics correction is performed predetermined times. At a first correction, the correction amount determining unit determines the correction amount by performing a frequency analysis, based on the detecting signal, i.e. base on the detecting signal corresponding to the measurement sound actually outputted to the sound space. On the contrary, at and after a second correction, the correction amount determining unit determines the correction amount based on the detecting signal or an output signal of the equalizer. Namely, at and after the second correction, the output signal of the equalizer is supplied to the correction amount determining unit in a signal processing circuit as the need arises, and the frequency characteristics correction is performed without actually outputting the measurement sound to the sound space.

The invention discloses sound membrane module assembling equipment of a loudspeaker. The equipment comprises an automatic drive assembly line and automatic flow process devices arranged at one side edge of the automatic drive assembly line. The automatic flow process devices are a sound membrane feeder, a sound membrane center automatic dispensing machine, a first glue solidification machine and a first lead dispensing machine sequentially, the automatic drive assembly line is provided with more than four stations, a horizontal moving belt and a motor driving the horizontal moving belt to drive, the horizontal moving belt bears a jig, the jig passes through the stations in sequence, and each station corresponds to one automatic flow process device. The equipment further comprises a manual upper sound coil gland station, an automatic sound coil gland taking mechanism and a lead arrangement station. Assembling processes are carried out in a flow line production mode, operation procedures can be consistent, the automatic flow process devices are arranged on the assembly line, production efficiency is promoted, invested labor cost is reduced, meanwhile the number of in-transit jigs is reduced, and the problem of concentricity cannot occur.

Earphone systems and methods for automatically directing ambient sound to an earphone device are provided. An ambient microphone signal from an ambient microphone proximate a sound isolating earphone or head-set device is directed to a receiver within an earphone device according to mixing circuitry. The mixing circuitry is controlled by voice activity of the earphone device wearer. This enables hands-free operation of an earphone system to allow the earphone device wearer to maintain situation awareness with the surrounding environment. During detected voice activity, incoming audio content is attenuated while ambient sound is increased and provided to the earphone device. User voice activity is detected by analysis of at least one of an ear canal microphone signal or an ambient sound microphone signal.

An automatic sound field correcting device executes a signal process to the plurality of audio signals on respective correspondent signal transmission paths, and outputs them to a plurality of correspondent speakers to correct sound characteristics on the respective signal transmission paths. Namely, a measurement signal is supplied to each signal transmission path, and a measurement sound corresponding to it is outputted from the speaker to a sound space. The outputted measurement sound is detected as a detecting signal. The frequency characteristic of the audio signal on each signal transmission path is corrected by an equalizer, and a gain value of the equalizer is determined by a correction amount determining unit. A frequency characteristics correction is performed predetermined times. At a first correction, the correction amount determining unit determines the correction amount by performing a frequency analysis, based on the detecting signal, i.e. base on the detecting signal corresponding to the measurement sound actually outputted to the sound space. On the contrary, at and after a second correction, the correction amount determining unit determines the correction amount based on the detecting signal or an output signal of the equalizer. Namely, at and after the second correction, the output signal of the equalizer is supplied to the correction amount determining unit in a signal processing circuit as the need arises, and the frequency characteristics correction is performed without actually outputting the measurement sound to the sound space.

In the automatic sound field correcting device, a plurality of audio signals to be reproduced by a plurality of speakers are input, and the signal processing is applied on the corresponding signal transmission paths. The measurement signal is supplied for the respective signal transmission paths, and output by the corresponding speakers. The sound of the output measurement signal is collected and the detection signal of the collected sound is generated. The equalizer gain values are determined based on the detection signals. By determining the identical equalizer gain values for the plural signal transmission paths for which the phases of the audio signals are to be matched, the phases of the signals on those signal transmission paths are matched, and the strange auditory feeling due to the phase mismatch can be reduced.

Earphone systems and methods for automatically directing ambient sound to an earphone device are provided. An ambient microphone signal from an ambient microphone proximate a sound isolating earphone or headset device is directed to a receiver within an earphone device according to mixing circuitry. The mixing circuitry is controlled by voice activity of the earphone device wearer. This enables hands-free operation of an earphone system to allow the earphone device wearer to maintain situation awareness with the surrounding environment. During detected voice activity, incoming audio content is attenuated while ambient sound is increased and provided to the earphone device. User voice activity is detected by analysis of at least one of an ear canal microphone signal or an ambient sound microphone signal.

The invention relates to a bicycle antitheft system, in particular to a bicycle antitheft equipment control system. The RFID-based b double card identification bicycle antitheft system comprises an identification card, a card reader, a gateway controller, an alarm, short message equipment and a control center, wherein the card reader, the gateway controller, the alarm and the short massage equipment are connected with the control center respectively. The bicycle antitheft system integrates an RFID technique, a double card identification technique, an embedded technique, a short message transmitting technique and other techniques. The system can realize a bicycle antitheft function, antitheft automatic sound alarm, short message remote alarm, parking lot gateway control and other functions.

The method for diagnosing network fault nodes (NFN) includes following steps: first, based on testing flow routine utilized by engineers to develop automatic testing software to simulate entire procedure from detecting network paths to searching NFN; then, based on each network device node to use selected protocol (TCP,UDP) to accomplish automatic test; based on network connectivity to accomplish diagnosing fault nodes automatically except only address of target network needs to be filled in for entire testing procedure. The method uses ICMP protocol with quick speed for tracking routes first, and then backs up routes tracked by UDP so as to guarantee probability to find complete route. Moreover, being flexible and effective to detect connectivity of nodes, the method can help to diagnose network fault effectively in practical work.