3033results about "Stereophonic circuit arrangements" patented technology

Display apparatus including a display and an orientation sensitive interface mechanism is disclosed. In an exemplary embodiment, the orientation sensitive interface includes first and second loudspeaker pairs. The first loudspeaker pair includes first and second loudspeakers and the second loudspeaker pair includes the second and third loudspeaker. The first and second loudspeaker pairs are disposed along transverse directions to each other. The display apparatus comprises a switch which switches between the first loudspeaker pair and the second loudspeaker pair. By providing the respective loudspeaker pairs, and switching between them, it is possible to orient the display apparatus in transverse directions corresponding to respective loudspeaker pairs, yet maintain a substantially stereophonic reproduction for each orientation.

A context-aware voice guidance method is provided that interacts with other voice services of a user device. The voice guidance does not provide audible guidance while the user is making a verbal request to any of the voice-activated services. Instead, the voice guidance transcribes its output on the screen while the verbal requests from the user are received. In some embodiments, the voice guidance only provides a short warning sound to get the user's attention while the user is speaking on a phone call or another voice-activated service is providing audible response to the user's inquires. The voice guidance in some embodiments distinguishes between music that can be ducked and spoken words, for example from an audiobook, that the user wants to pause instead of being skipped. The voice guidance ducks music but pauses spoken words of an audio book in order to provide voice guidance to the user.

A context-aware voice guidance method is provided that interacts with other voice services of a user device. The voice guidance does not provide audible guidance while the user is making a verbal request to any of the voice-activated services. Instead, the voice guidance transcribes its output on the screen while the verbal requests from the user are received. In some embodiments, the voice guidance only provides a short warning sound to get the user's attention while the user is speaking on a phone call or another voice-activated service is providing audible response to the user's inquires. The voice guidance in some embodiments distinguishes between music that can be ducked and spoken words, for example from an audiobook, that the user wants to pause instead of being skipped. The voice guidance ducks music but pauses spoken words of an audio book in order to provide voice guidance to the user.

A speaker includes at least one transducer and at least one memory device. The at least one transducer is adapted to receive an audio signal. The at least one memory device is adapted to store data related to the speaker. A method includes reading data from a memory device of at least one speaker. An audio signal is provided from an audio system.

A wireless speaker system configured to receive stereo audio information wirelessly transmitted by an audio source including first and second loudspeakers. The first loudspeaker establishes a bidirectional secondary wireless link with the audio source for receiving and acknowledging receipt of the stereo audio information. The first and second loudspeakers communicate with each other via a primary wireless link, and the first and second loudspeakers are configured to extract first and second audio channels, respectively, from the stereo audio information. A wireless audio system including an audio source and first and second loudspeakers, each having a wireless transceiver. The first and second loudspeakers communicate via a primary wireless link. The audio source communicates audio information to the first loudspeaker via a secondary wireless link which is configured according to a standard wireless protocol. The first loudspeaker is configured to acknowledge successful reception of audio information via the secondary wireless link.

A detector located on or near an ear piece may automatically detect whether a left or right ear or neither ear is wearing the ear piece. A signal mixer may automatically apply a correct configuration to signals transmitted to or from the ear piece according to whether the left or right ear or neither ear is determined to be wearing the ear piece. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

A method of generating a personalized sound system hearing profile for a user. The method begins by selecting an initial profile, based on selected factors of user input. In an embodiment, the initial profile is selected based on demographic factors. Then the system identifies one or more alternate profiles, each having a selected relationship with the initial profile. The relationship between alternate profiles and the initial profile can be based on gain as a function of frequency, one alternate profile having a higher sensitivity at given frequencies and the other a lower sensitivity. The next step links at least one audio sample with the initial and alternate profiles and then plays the selected samples for the user. The system then receives identification of the preferred sample from the user; and selects a final profile based on the user's preference. An embodiment offers multiple sound samples in different modes, resulting in the selection of multiple final profiles for the different modes. Finally, the system may apply the final profile to the sound system.

The invention discloses a system applied to optimize the perceived sound quality in virtual sound zones. The system includes a method to establish a threshold of acceptability for an interfering audio programme on a target audio programme. The method includes physical parameters like target programme and interferer programme which combined with the scenarios: information gathering, entertainment and reading and/or working, constitutes modes of operations that may be processed and controlled by a system controller.

An audio content playback method for a portable terminal The audio content playback method includes checking a channel that is supportable by audio content that is currently engaged in group's simultaneous playback, in group's simultaneous playback of the audio content. The method includes allocating a channel to each of devices included in a group based on position information of each device included in the group or based on an input state in a user interface environment that is preset for channel allocation for each device included in the group, and transmitting the allocated channel information to each device included in the group to allow the device to select its allocated channel and play the audio content.

An information presentation apparatus is provided presenting an interface suitable for selecting desired information from a plurality of information. The apparatus has three methods of presenting information. The first method is to present information by sequentially playing and presenting a plurality of audio information related to the information in turn. The second method is to present the plurality of audio information at the same time wherein each sound has its directivity. The third method is a combination of the first and second methods wherein user can select desired method between the two depending on kinds of information presented.

A universal four-channel multimedia computer speaker system is connectable to audio sub-system control circuits (e.g., “sound cards”) of both the four-channel type and the conventional two-channel (stereo) type. With the audio sub-system control circuit being of a four-channel type, the universal four-channel audio system functions as a conventional multimedia computer four-channel surround sound audio system. With a four audio channel multimedia computer work and the audio sub-system control circuit being of a conventional two-channel (stereo) type, the universal four-channel audio system is configured to provide one pair of wide-band speakers (e.g., the front) with distinct audio playback according to respective right-front and left-front audio channels in a four or two audio channel multimedia computer work such as a game, music, etc. The universal four-channel audio system is configured to provide at the rear speakers distinct audio playback that are generated from the right-front and left-front audio channels in the four or two audio channel multimedia computer work. With respect to the rear speakers, the universal four-channel audio system includes a proxy audio signal component that provides respective right and left rear proxy audio signals to proximate the typical sound of actual right and left rear audio signals carried on a four audio channel multimedia computer work or simulated surround signals generated from conventional two channel multimedia work.

A method and apparatus for processing an audio sound source to create four-dimensional spatialized sound. A virtual sound source may be moved along a path in three-dimensional space over a specified time period to achieve four-dimensional sound localization. A binaural filter for a desired spatial point is applied to the audio waveform to yield a spatialized waveform that, when the spatialized waveform is played from a pair of speakers, the sound appears to emanate from the chosen spatial point instead of the speakers. A binaural filter for a spatial point is simulated by interpolating nearest neighbor binaural filters chosen from a plurality of pre-defined binaural filters. The audio waveform may be processed digitally in overlapping blocks of data using a Short-Time Fourier transform. The localized sound may be further processed for Doppler shift and room simulation.

Techniques and systems for enhancing delivered audio signals are disclosed which may be employed in a delivery system at a server side, a client side, or both. The techniques include forming a processed audio signal by processing audio signals through multiple pathways which operate on different frequency bands using dynamic processing and other elements, and thereafter providing recording or listening environment enhancements and other sound enhancements to the processed audio signal. Also disclosed are techniques and systems for implementing the multi-pathway processing and environmental and sound enhancements.

Computer-implemented methods are provided. One method includes determining an orientation of a display of a portable system. The method also includes altering an orientation of two speakers arranged along one side of the system based on the orientation of the display. Another method includes determining an orientation of a display of a portable system and determining an orientation of two speakers of the system based on the orientation of the display. If a current orientation of the two speakers differs from the determined orientation of the two speakers, the method includes altering the current orientation of the speakers such that they have the determined orientation. A portable system is also provided that includes means for determining an orientation of a display of the system. The system also includes means for altering an orientation of two speakers arranged along one side of the system based on the orientation of the display.

A method for monitoring and reporting sound pressure level exposure for a user of a first communication device (104) is implemented in one embodiment when the device measures a sound pressure level (SPL) of the surrounding environment. The device stores at least the SPL measurement in a memory, producing an SPL exposure record, and displays a visual representation of the SPL exposure record on a display screen (212). In another embodiment, the SPL is measured by a second communication device (102) and combined with a known SPL for an output audio transducer (306) of the second device, producing a user sound exposure level. The user sound exposure level is transmitted to the first communication device. The user is notified when the user sound exposure level exceeds a predetermined threshold. A server (112) may also be used to track SPLs over time and recommend corrective action when exposure limits are exceeded.

An electronic apparatus is provided. The electronic apparatus includes a sensor to sense an orientation of the electronic apparatus, an audio processor to divide a stereo audio signal into a left audio signal and a right audio signal, a plurality of speakers disposed at separate locations on a main body of the electronic apparatus to output the left audio signal and the right audio signal, a switching unit to output the left audio signal and the right audio signal from the audio processor to the plurality of speakers, and a controller to control the switching unit to switch the output of the left audio signal and the right audio signal between the plurality of speakers based on a change in the orientation of the electronic apparatus.