Abstract: An input signal is converted to a feature-space representation. The feature-space representation is projected onto a discriminant subspace using a linear discriminant analysis transform to enhance the separation of feature clusters. Dynamic programming is used to find global changes to derive optimal cluster boundaries. The cluster boundaries are used to identify the segments of the audio signal.

Abstract: A combined audio video device includes inputs for receiving an audio video signal from a source. The device includes in one enclosure audio and video processor portions configured such that the audio and video processors use a common communications line for coupling electrical signals form the device to a host computer. The audio processor is operable to accept an audio signal and to provide audio enhancements to the audio signal. In one embodiment, the common communications line is a USB cable. In another embodiment, a USB hub is integrated into the device.

Abstract: There is provided methods for increasing a number of media playback devices served by a communications base station. The communications base station may be for transmitting data using a broadcast video band frequency and both transmitting and receiving data using a mobile broadband frequency. The methods enable the communications base station to serve a greater number of media playback devices in the idle mode compared to a lesser number of media playback devices in the active mode. Both the broadcast video band frequency and the mobile broadband frequency may be a data network such as, for example, WiMAX, HSxPA, HSPA+, LTE and so forth.

Abstract: There is provided a multi-mode sound reproduction system for reproduction of both stereophonic signals and multi-channel audio signals. The system includes a first pair of speakers positioned on a left portion of a user, the user being at a pre-determined facing, the first pair of speakers comprising a first primary speaker which is stackable with a first secondary speaker; a second pair of speakers positioned on a right portion of the user, the user being at the pre-determined facing, the second pair of speakers comprising a second primary speaker which is stackable with a second secondary speaker. The system may preferably include an arrangement of electronic components for controlling output of audio signals from the first pair and the second pair of speakers. It is preferable that in a first mode with the first and second pair of speakers in an unstacked configuration, the signals do not pass through the arrangement of electronic components prior to output.

Abstract: There is provided an apparatus for controlling playback of videos grouped in a plurality of playlists. The apparatus may be for controlling a host device and includes a plurality of buttons. Each button is used to perform at least one task such as, for example, toggling the host device from a standby mode to an active mode and subsequently running a first video from one of the plurality of playlists associated with the button; playing back a second video from one of the plurality of playlists associated with the button; tagging a video frame from any video; skipping amongst videos grouped in one of the plurality of playlists associated with the button and so forth. A corresponding method is also provided.

Abstract: There is provided a portable digital media device, including: a storage device; a force sensor coupled to the storage device; a display; and a controller coupled to both the storage device and the display, wherein the display shows information. The device may also be used as a cursor control and input device when connected to a computer. Other applications of the device are also disclosed.

Abstract: A method for simulating spatially extended sound sources comprising: panning a first input signal over a plurality of output channels to generate a first multi-channel directionally encoded signal; panning a second input signal over the plurality of output channels to generate a second multi-channel directionally encoded signal; combining the first and second multi-channel directionally encoded signals to generate a plurality of loudspeaker output channels; and applying a bank of decorrelation filters on the loudspeaker output channels.

Abstract: There is provided a system and method for video frame marking. It is preferable that a tagged video frame is visually perceptible in the set of chronologically ordered video frames shown in the display. The selection of each video frame preferably causes playback of an excerpt of the video with a duration of the common predetermined interval. The video frame may denote a scene from a portion of the excerpt of the video, such as, for example, start, middle and end. It is advantageous that the excerpts of the video of each tagged video frame is combined using the user interface to generate a concise representation of the video. The concise representation of the video may be in a form where excerpts of the video of each of the tagged video frames are played back at a normal rate while excerpts of the video of each of other video frames are played back at an accelerated rate.

Abstract: There is provided a dock without a power source for a portable digital device with at least one integrated speaker driver. The dock may include a platform for placement of the portable digital device; a protrusion located at the platform for connection of the portable digital device with the dock with the protrusion including a slot for egress of air from at least one hole in a casing of the portable digital device to the dock; and at least one primary chamber to receive air from the portable digital device with the at least one primary chamber having a vented port for the egress of air. Advantageously, sound from the at least one integrated speaker driver is amplified when the portable digital device is connected to the dock. The connection of the portable digital device with the dock may be securable.

Abstract: A multimode audio reproduction device is disclosed that comprises first and second audio reproduction modules coupled by a support structure. The first and second audio reproduction modules are movable between two configurations. In the first configuration the audio reproduction device serves as a loudspeaker while in the second configuration the audio reproduction device serves as a headphone.

Abstract: According to various embodiments of the invention, a new and effective keyboard click noise reduction scheme is presented. The keyboard click noise reduction scheme may have various processing units including: Dynamic Signal Modeler, Smart Model Selector, Adaptive Filtering Module, Keyboard/Impulse Noise and Voice Activity Detectors, and a Post-Processing Unit. By adaptively changing the coefficients of the proposed adaptive filter through minimizing the output energy, the scheme can provide the target signal/voice with nearly zero keyboard click noise. The scheme could be used in real-time to minimize keyboard click noise or any kind of unwanted noise, especially noise having transient impulse characteristics.

Abstract: A method and an apparatus to process a digital image is provided. The method may comprise receiving host image data, receiving audio data and embedding the audio data within the host image data to provide an embedded image wherein the audio data if freely recoverable from the embedded image. The method may comprise processing the audio data using a Short Term Fourier Transformation (STFT) prior to embedding the audio data within the host image data. The method may reduce an amount of digital data that represents an audio signal included in the audio data prior to embedding the audio data within the host image. In one embodiment, the method comprises quantizing magnitude data and discarding phase data of the audio signal to provide the audio data for embedding. The method may comprise quantizing the audio data to match a shell of a D4 Lattice.

Abstract: The invention relates to systems for driving computer peripherals having features, such as 3D sound capability, which are not envisaged by generic operating system for the computer. In order to adapt computers subject to existing operating systems, such as the Microsoft Windows family of systems, to such peripherals for which there is thus no driver capability, the invention provides a device driving system including additional driver, interposed between the operating system and an existing installed driver and configured to interface directly with the operating system. The additional driver is preferably also configured to interface with the existing installed driver.

Abstract: There is provided a system for downloading digital content to a portable media player, the digital content being published in a media channel by a content creator. The system may reside on a server accessible via the Internet. The system may comprise: a data receiver module to receive the digital content from the media channel via a communication medium; a conversion module to convert the received digital content to at least one format for consumption by the player; and a download module to copy the at least one file to the portable media player. The system may further comprise a player detection module to detect file formats compatible with the portable media player. A corresponding method is also disclosed.

Abstract: There is provided an insert ear bud earphone with variable noise isolation. The earphone includes a housing with a serpentine channel which is able to contain at least one transducer in a main body of the housing; and a cushion which contacts a user's ear canal wall, the cushion being mounted on the serpentine channel. There is preferably at least one opening in either the housing or the cushion which causes leakage and allows ambient noise to enter the user's ear canal. There is also provided a cushion for an insert ear bud earphone. Finally, there is provided a method to enable variable noise isolation in an insert ear bud earphone comprising an inclusion of at least one opening in either a housing of the earphone or a cushion mounted on the earphone which causes leakage and allows ambient noise to enter a user's ear canal.

Abstract: There is provided a calibration method for calibrating a variable number of speakers. The method includes determining physical features around a location of each of the variable number of speakers and calibrating at least one of the variable number of speakers.

Abstract: The present invention provides a frequency-domain spatial audio coding framework based on the perceived spatial audio scene rather than on the channel content. In one embodiment, time-frequency spatial direction vectors are used as cues to describe the input audio scene.