Abstract: An audio synchronization method includes: receiving a first audio signal from a first recording device; receiving a second audio signal from a second recording device; performing a correlation operation upon the first audio signal and the second audio signal to align a first pattern of the first audio signal and the first pattern of the second audio signal; after the first patterns of the first audio signal and the second audio signal are aligned, calculating a difference between a second pattern of the first audio signal and the second pattern of the second audio signal; and obtaining a starting-time difference between the first audio signal and the second audio signal for audio synchronization according to the difference between the second pattern of the first audio signal and the second pattern of the second audio signal.

Abstract: Methods and apparatuses pertaining to enhanced audio effect realization for virtual reality may involve receiving data in a virtual reality setting. The data may be related to audio samples from one or more sound sources, motions of the one or more sound sources, and motions of a user. Physics simulation may be performed for realization of one or more audio effects based on the received data. Signal processing may be performed using a result of the physics simulation. Audio outputs may be provided using a result of the signal processing.

Abstract: Methods and apparatus of reconstructing 360 audio/video (AV) file from multiple AV tracks captured by multiple capture devices are disclosed. According to the present invention, for multi-track audio/video data comprising a first and second audio tracks and a first and second video tracks, the first audio track and the first video track are aligned with the second audio track and the second video track by utilizing video synchronization information derived from the first video track and the second video track if the video synchronization information is available. When the video synchronization information is available, the first audio track and the first video track are aligned with the second audio track and the second video track by utilizing the video synchronization information.

Abstract: An audio synchronization method includes: receiving a first audio signal from a first recording device; receiving a second audio signal from a second recording device; performing a correlation operation upon the first audio signal and the second audio signal to align a first pattern of the first audio signal and the first pattern of the second audio signal; after the first patterns of the first audio signal and the second audio signal are aligned, calculating a difference between a second pattern of the first audio signal and the second pattern of the second audio signal; and obtaining a starting-time difference between the first audio signal and the second audio signal for audio synchronization according to the difference between the second pattern of the first audio signal and the second pattern of the second audio signal.

Abstract: Methods and apparatuses pertaining to enhanced audio effect realization for virtual reality may involve receiving data in a virtual reality setting. The data may be related to audio samples from one or more sound sources, motions of the one or more sound sources, and motions of a user. Physics simulation may be performed for realization of one or more audio effects based on the received data. Signal processing may be performed using a result of the physics simulation. Audio outputs may be provided using a result of the signal processing.

Abstract: A voice control device has a speech command recognizer, a sensor data processor and a decision making circuit. The speech command recognizer is arranged for performing speech command recognition to output a recognized speech command. The sensor data processor is arranged for processing sensor data generated from at least one auxiliary sensor to generate a detection output. The decision making circuit is arranged for deciding a response of the voice control device according to the recognized speech command and the detection output. The same speech command is able to trigger difference responses according to the detection output (e.g., detected motion). Besides, an adaptive training process may be employed to improve the accuracy of the sensor data processor. Hence, the voice control device may have improved performance of the voice control feature due to a reduce occurrence probability of miss errors and false alarm errors.

Abstract: A portable electronic device including an ultrasound transmitter, an ultrasound receiver, and a processing unit is provided. The ultrasound transmitter sends ultrasonic signals, while the ultrasound receiver receives reflected ultrasonic signals from an object. The ultrasound transmitter and the ultrasound receiver are disposed to form a reference axis. The processing unit processes the reflected ultrasonic signals to obtain a time-frequency distribution thereof, and determines a 1D gesture corresponding to projection loci of movements of the object on the reference axis according to the time-frequency distribution.

Abstract: A portable electronic device including an ultrasound transmitter, an ultrasound receiver, and a processing unit is provided. The ultrasound transmitter sends ultrasonic signals, while the ultrasound receiver receives reflected ultrasonic signals from an object. The ultrasound transmitter and the ultrasound receiver are disposed to form a reference axis. The processing unit processes the reflected ultrasonic signals to obtain a time-frequency distribution thereof, and determines a 1D gesture corresponding to projection loci of movements of the object on the reference axis according to the time-frequency distribution.

Abstract: A voice control device has a speech command recognizer, a sensor data processor and a decision making circuit. The speech command recognizer is arranged for performing speech command recognition to output a recognized speech command. The sensor data processor is arranged for processing sensor data generated from at least one auxiliary sensor to generate a detection output. The decision making circuit is arranged for deciding a response of the voice control device according to the recognized speech command and the detection output. The same speech command is able to trigger difference responses according to the detection output (e.g., detected motion). Besides, an adaptive training process may be employed to improve the accuracy of the sensor data processor. Hence, the voice control device may have improved performance of the voice control feature due to a reduce occurrence probability of miss errors and false alarm errors.

Abstract: A method for synthesizing a clock-tree structure may be applied to a physical design such as an integrated circuit or a printed circuit board to form a symmetrical clock-tree structure, while achieving the effects including minimizing a clock skew, having a process variation tolerance and increasing the synthesizing rate. To prevent a certain level from having too many branches and ensure that the clock-tree structure satisfies the fan-out constraint, a plurality of pseudo sinks are provided such that the result of factorizing the value of the number of the total sinks may satisfy the fan-out constraint. The levels in the clock-tree structure may have equal branch lengths by employing snaking routing, so as to achieve a symmetrical clock-tree structure design and reduce the clock skew of the clock-tree.

Abstract: A method for synthesizing a clock-tree structure may be applied to a physical design such as an integrated circuit or a printed circuit board to form a symmetrical clock-tree structure, while achieving the effects including minimizing a clock skew, having a process variation tolerance and increasing the synthesizing rate. To prevent a certain level from having too many branches and ensure that the clock-tree structure satisfies the fan-out constraint, a plurality of pseudo sinks are provided such that the result of factorizing the value of the number of the total sinks may satisfy the fan-out constraint. The levels in the clock-tree structure may have equal branch lengths by employing snaking routing, so as to achieve a symmetrical clock-tree structure design and reduce the clock skew of the clock-tree.