Abstract: A system for connecting disparate communication interfaces. The system includes a dongle and an adaptor. The dongle has a first interface type of connector for connection to a first interface type of port. The adaptor provides a connection to a second interface type of port, and also includes a third interface type of port. A switch in the dongle allows connecting to the third interface type of interface port when connected to the adaptor, and connection to the first interface type of interface port when not connected to the adaptor.

Abstract: In one example, an apparatus comprises a headset and an auxiliary device. The headset includes a first microphone to detect first egress audio signals and a speaker to output ingress audio signals received wirelessly from a mobile device. The auxiliary device includes a container to hold the headset, as well as a second microphone to detect second egress audio signals. In a first operation mode, one of the headset or the auxiliary device can transmit wireless signals including the first egress audio signals to the mobile device. In a second operation mode, one of the headset or the auxiliary device can transmit wireless signals including the second egress audio signals to the mobile device.

Abstract: A USB audio controller includes a USB interface unit, an audio interface unit, a storage interface unit, and a processing unit. The USB interface unit is used to connect to a USB bus for communicating with a host by a communication information. The audio interface unit is used to connect to at least one audio device for communicating with an audio signal. The storage interface unit is used to connect to a memory unit for communicating storage information. The processing unit is for processing the communicating information, storage information, or audio signal.

Abstract: The present invention provides an audio processing apparatus for automatically controlling gain. The audio processing apparatus includes an audio signal source and a sound reproduction device. The sound reproduction device attaches to the audio signal source, which includes a storage unit for storing a default gain value and a gain index table. The gain index table lists genre types with a genre gain value of each of the genre types. After receiving a play command signal, the audio signal source fetches an audio file to be played, reads a genre type of the audio file from a tag thereof, and processing the audio file to generate audio signals. The audio signal source further reads a genre gain value of the genre type from the gain index table, amplifies the audio signals by the genre gain value, and sends the amplified audio signals to the sound reproduction device to reproduce corresponding sounds.

Abstract: An USB audio controller includes an USB interface unit, an audio interface unit, a storage interface unit, and a processing unit. The USB interface unit is used to connect to an USB bus for communicating with a host by a communication information. The audio interface unit is used to connect to at least one audio device for communicating with an audio signal. The storage interface unit is used to connect to a memory unit for communicating storage information. The processing unit is for processing the communicating information, storage information, or audio signal.

Abstract: A USB audio controller includes an USB interface unit, an audio interface unit, a storage interface unit, and a processing unit. The USB interface unit is used to connect to a USB bus for communicating with a host by a communication information. The audio interface unit is used to connect to at least one audio device for communicating with an audio signal. The storage unit is used to connect to a memory unit for communicating storage information. The processing unit is for processing the communicating information and audio signal.

Abstract: An internet phone system is implemented in a computer system, including an internet-phone software unit, for storing a software used by the computer system to operate as an internet phone. An audio-file storage software unit is for storing a plurality of audio files. A USB (Universal Serial Bus) audio interface software unit is coupled with the internet-phone software unit and the audio-file storage unit. A USB audio apparatus is coupled to the audio interface unit, and comprising at least a microphone and a speaker. Wherein, the USB audio interface unit stores a software for selecting one of the audio files to serve as the phone-call ring, and for driving the speaker in the USB audio apparatus by the computer system for generating ringing sound for an incoming call.

Abstract: A measure system for signal measurement is introduced. The measure system simplifies the effort for a signal measurement in many applications. The application for a signal measurement is, for example, computation of a signal average value. The measure system includes a digital computation circuit together with an analog to digital converter (ADC) to constitute a compact signal measurement component. With the proposed design, a general microcontroller can proceed with a signal level sense and control with very few CPU power. In addition, the proposed system can be integrated with other analog or digital signal processing circuitry to form a single silicon chip.

Abstract: The present invention provides a sound reproduction device and method for automatic gain control. The method includes steps of: providing a gain index table for listing a plurality of time period each referencing a predetermined gain value; providing a plug for attaching to an audio signal source, receiving audio signals from the audio signal source, and generating a request signal; receiving the request signal generated by the plug; reading a current time and determining a time period corresponding to the current time; reading a predetermined gain value referenced by the time period in the gain index table; replacing the default gain value with the predetermined gain value referenced by the time period; and amplifying the audio signals received from the audio signal source by the predetermined gain value referenced by the time period, thereby audio energy of the amplified audio signals is proper to a user's hearing.

Abstract: The present invention provides an audio processing apparatus for automatically controlling gain. The audio processing apparatus includes an audio signal source and a sound reproduction device. The sound reproduction device attaches to the audio signal source, which includes a storage unit for storing a default gain value and a gain index table. The gain index table lists genre types with a genre gain value of each of the genre types. After receiving a play command signal, the audio signal source fetches an audio file to be played, reads a genre type of the audio file from a tag thereof, and processing the audio file to generate audio signals. The audio signal source further reads a genre gain value of the genre type from the gain index table, amplifies the audio signals by the genre gain value, and sends the amplified audio signals to the sound reproduction device to reproduce corresponding sounds.

Abstract: An acoustic inspection apparatus and its transport device are disclosed. The acoustic inspection apparatus includes an anechoic chamber and a transport device. The anechoic chamber defines an entrance. The transport device includes a support frame, guiding rails, sliding blocks, a motor, and a multiple holder. The guiding rails are mounted on the support frame. The sliding blocks are fitted on the guiding rails. The motor drives the sliding blocks moving along the lengthwise direction of the guiding rails. The multiple holder is connected with the sliding blocks and at least includes an acoustical anechoic chamber cover and a holding platform configured for supporting a sound device that to be inspected. The acoustic inspection apparatus can be used in product line to inspect sound devices.

Abstract: The present invention relates to a hearing protection method, includes steps of: obtaining digital audio signals from an audio signal source; sampling the digital audio signals and obtaining a plurality of amplitude values; calculating an audio energy within a predetermined time period according to the amplitude values sampled in the predetermined time period; determining whether the audio energy reaches a predetermined value; and generating a hearing protect signal when the audio energy reaches the predetermined value, thereby protecting users' hearing. The present invention also provides a corresponding sound output device for hearing protection.

Abstract: The present invention relates to a hearing protection method of a sound output device, includes steps of: obtaining analog audio signals from an audio signal source via a plug of the sound output device; converting the analog audio signals to generate digital audio signals; sampling the digital audio signals to obtain a plurality of amplitude values of the sampled digital audio signals; calculating an audio energy in every predetermined time period according to the amplitude values sampled in the predetermined time period; determining whether the audio energy reaches a predetermined value; generating a hearing protect signal if the audio energy reaches the predetermined value; and in response to the hearing protect signal, automatically reducing a current gain value or outputting prompt information, thus, preventing hearing impairment of users. The present invention also provides a corresponding sound output device for hearing protection.

Abstract: A measure system for signal measurement is introduced. The measure system simplifies the effort for a signal measurement in many applications. The application for a signal measurement is, for example, computation of a signal average value. The measure system includes a digital computation circuit together with an analog to digital converter (ADC) to constitute a compact signal measurement component. With the proposed design, a general microcontroller can proceed with a signal level sense and control with very few CPU power. In addition, the proposed system can be integrated with other analog or digital signal processing circuitry to form a single silicon chip.

Abstract: In TV broadcasting environment, due to different settings in different TV stations, the sound level from each station may vary in a wide range. For general users, it may cause annoying experience since the TV sound level may change a lot when user switches the channel from one to the other. In addition, switching among TV reception and AV inputs may have similar problem. The present invention relates to a method and apparatus which can be easily integrated into a single IC to achieve a low cost TV sound level control solution.