Abstract: A sound-reproducing method that includes the steps outlined below is provided. A playback sound is generated by applying original audio into a test environment. The playback sound is received to generate received sound data. At least one test environment spatial parameter corresponding to the test environment is calculated according to known audio data related to the original audio and the received sound data. Input audio is modified by applying the test environment spatial parameter thereto to generate reproduced audio.

Abstract: A 3D reconstruction method is provided. Positioning signals are received by a signal receiver at a first and a second time spots to determine a HMD displacement vector and a HMD rotation amount. A first and a second images are retrieved by a first camera to determine a first camera rotation amount. A relative rotation amount and a relative displacement vector between the HMD and the first camera are calculated. A first camera displacement vector of the first camera is calculated according to the HMD displacement vector, the HMD rotation amount, the relative rotation amount and the relative displacement vector. Depth information of the first and the second image is obtained based on the first camera displacement vector and the first camera rotation amount. 3D reconstruction is performed according to images retrieved by the first camera and the depth information.

Abstract: A sound-reproducing method that includes the steps outlined below is provided. A playback sound is generated by applying original audio into a test environment. The playback sound is received to generate received sound data. At least one test environment spatial parameter corresponding to the test environment is calculated according to known audio data related to the original audio and the received sound data. Input audio is modified by applying the test environment spatial parameter thereto to generate reproduced audio.

Abstract: An echo-cancelling device includes an audio input/output (I/O) terminal, an audio-receiving module, an analog-to-digital (A/D) converter, and a processor is provided. The A/D converter is electrically connected to the audio-receiving module. The processor is electrically connected to the A/D converter and the audio I/O terminal. The audio I/O terminal receives an external reference signal from an electronic device. The audio-receiving module receives an input audio and an output audio from the electronic device, and generates an analog input signal having the input audio and the output audio. The A/D converter generates a digital input signal according to the analog input signal. The processor cancels the output audio to generate a second (digital) sound signal according to the digital input signal and the external reference signal. Finally, the processor transmits the second (digital) sound signal to the electronic device via the audio I/O terminal.

Abstract: The disclosure provides an audio processing device, an audio processing method for controlling a plurality of speakers, and a computer program product. The audio processing device includes a memory, a transceiver, and a processor. The memory stores a plurality of modules. The transceiver is wirelessly paired with a plurality of speakers. The processor executes the modules to perform following steps: requesting each of the speakers to output an audio positioning signal; collecting the audio positioning signal from each of the speakers; retrieving a location of each of the speakers relative to the audio processing device according to the audio positioning signal from each of the speakers; adjusting a plurality of audio contents based on the location of each of the speakers relative to the audio processing device; and sending the audio contents to the speakers to control the speakers outputting the audio contents.

Abstract: An electronic apparatus includes a sound-receiving module and a processor. The electronic apparatus is electronically connected to a first sound device and a second sound device. The first sound device receives a first sound signal having a first channel audio from the electronic apparatus and plays the first channel audio. The second sound device receives a second sound signal having a second channel audio from the electronic apparatus and plays the second channel audio. The sound-receiving module receives an audio to generate an input signal. The processor electrically connected to the sound-receiving module compares the input signal and a predetermined value. When the input signal is less than the predetermined value, the processor adjusts the first and second sound signals for the first sound device receiving the second sound signal and for the second sound device receiving the first sound signal.

Abstract: An echo-cancelling device includes an audio input/output (I/O) terminal, an audio-receiving module, an analog-to-digital (A/D) converter, and a processor is provided. The A/D converter is electrically connected to the audio-receiving module. The processor is electrically connected to the A/D converter and the audio I/O terminal. The audio I/O terminal receives an external reference signal from an electronic device. The audio-receiving module receives an input audio and an output audio from the electronic device, and generates an analog input signal having the input audio and the output audio. The A/D converter generates a digital input signal according to the analog input signal. The processor cancels the output audio to generate a second (digital) sound signal according to the digital input signal and the external reference signal. Finally, the processor transmits the second (digital) sound signal to the electronic device via the audio I/O terminal.

Abstract: An anti-noise headset device and a sound processing method thereof are provided. The anti-noise headset device includes an audio receiving module and a control module. The audio receiving module is configured to receive several audio signals in several periods. The control module is electrically coupled to the audio receiving module. The control module is configured to store the audio signals received from a first period to an Nth period as sound data. The control module compares the audio signal received in an (N+1)th period with the sound data so as to generate a relevance value, N is an integer larger than zero. When the relevance value is smaller than a threshold value, the control module filters out a portion of the audio signal received in the (N+1)th period, in which the portion of the audio signal received in the (N+1)th period is relevant to the sound data.

Abstract: An anti-noise headset device and a sound processing method thereof are provided. The anti-noise headset device includes an audio receiving module and a control module. The audio receiving module is configured to receive several audio signals in several periods. The control module is electrically coupled to the audio receiving module. The control module is configured to store the audio signals received from a first period to an Nth period as sound data. The control module compares the audio signal received in an (N+1)th period with the sound data so as to generate a relevance value, N is an integer larger than zero. When the relevance value is smaller than a threshold value, the control module filters out a portion of the audio signal received in the (N+1)th period, in which the portion of the audio signal received in the (N+1)th period is relevant to the sound data.

Abstract: An acoustic processing apparatus and an audio adjusting method for the acoustic processing apparatus are provided. The acoustic processing apparatus is electrically connected with a microphone and a speaker. The acoustic processing apparatus includes an input unit, a storing unit, a computing unit, an adjusting unit, and an output unit. The audio adjusting method includes steps of: receiving a feedback audio from the microphone, calculating a current residue audio according to the feedback audio, a stored residue audio and an offset parameter, performing a correlation calculation to find out a relationship between the feedback audio and the stored residue audio, selectively modifying the offset parameter according to a result of the correlation calculation, and outputting the current residue audio to the speaker.

Abstract: An acoustic processing apparatus and an audio adjusting method for the acoustic processing apparatus are provided. The acoustic processing apparatus is electrically connected with a microphone and a speaker. The acoustic processing apparatus includes an input unit, a storing unit, a computing unit, an adjusting unit, and an output unit. The audio adjusting method includes steps of: receiving a feedback audio from the microphone, calculating a current residue audio according to the feedback audio, a stored residue audio and an offset parameter, performing a correlation calculation to find out a relationship between the feedback audio and the stored residue audio, selectively modifying the offset parameter according to a result of the correlation calculation, and outputting the current residue audio to the speaker.