Abstract: An audio signal processing device 100 includes a period detecting unit 102 for detecting the fundamental period of an input audio signal 101; a square wave generating unit 106 for generating, according to the fundamental period the period detecting unit 102 detects, a square wave 107 whose period is an integer multiple of the fundamental period; an amplitude correction coefficient generating unit 103 for calculating an amplitude correction coefficient 109 approximately equal and proportional to the intensity of the input audio signal 101; a first multiplier 108 for generating an amplitude-corrected square wave 110 by multiplying the square wave 107 by the amplitude correction coefficient 109; and an adder 104 for adding the amplitude-corrected square wave 110 to the input audio signal 101.

Abstract: Provided is a method and apparatus for generating a side information bitstream of a multi-object audio signal. The apparatus for generating a side information bitstream of a multi-object audio signal includes a spatial cue information input unit configured to receive spatial cue information generated in an encoder of the multi-object audio signal, a preset information input unit configured to receive preset information for the multi-object audio signal, and a side information bitstream generator configured to generate the side information bitstream based on the spatial cue information and the preset information. The side information bitstream includes a header region and a frame region, and the preset information is included in the frame region.

Abstract: A system for assisting an end user to develop a musical composition comprising a data storage medium, a plurality of musical assets stored in the data storage medium, a user interface, and an audio converter module. Each of the plurality of musical assets are associated with a functional attribute and a visual attribute, where the visual attribute provides a visual suggestion to an end user regarding the functional attribute of the musical asset. The user interface is coupled to an audio interface, a display driver and a user input handler; and is capable of rendering a graphical display that enables the end user to select between one or more visual attributes. The audio converter module captures audio recorded by the end-user through the audio interface, processes the audio; and produces a multi-track musical compilation comprised of a plurality of audio tracks mixed together in a manner where the multiple tracks are substantially musically harmonious with one another.

Abstract: A unified digital media player control apparatus automatically reproduces (i.e., renders) gapless transitions, as suitably adjoined or concurrently-overlapping events, between a discrete first media file (e.g., sound recording) and a discrete second media file. One embodiment is implemented on a computing device with a graphical user interface and access to a library of digital media files. Logic can distinguish between the production sound design of recordings which have a desirable “creative content” duration (i.e., interval) that will resolve either abruptly or with a gradual fade. Responsive to media file content assessments, and without operator actions or media file preparation, the invention can use at least one programmatically-addressable event timer object to robotically assign discrete player reproduction timing instructions enabled to cause the system's associated media player objects to consistently interoperate with natural, optimally-timed transitions.

Abstract: A machine may be configured to generate one or more audio fingerprints of one or more segments of audio data. The machine may access audio data to be fingerprinted and divide the audio data into segments. For any given segment, the machine may generate a spectral representation from the segment; generate a vector from the spectral representation; generate an ordered set of permutations of the vector; generate an ordered set of numbers from the permutations of the vector; and generate a fingerprint of the segment of the audio data, which may be considered a sub-fingerprint of the audio data. In addition, the machine or a separate device may be configured to determine a likelihood that candidate audio data matches reference audio data.

Abstract: A cognitive loudspeaker system including a control station that communicates wirelessly and bi-directionally with a plurality of sound production stations. The control station and the sound production stations are initially synchronized to a conductor clock. Configuration information is then transmitted from the sound production stations to the control station. In response, the control station generates playback executables, which are transmitted to the sound production stations. The control station also transmits digital audio information to the sound production stations. Within each sound production station, the previously received playback executable is used to control the decoding and processing of the received digital audio information. Each sound production station generates digital audio output samples, which are converted to analog output signals. These analog output signals are amplified and are used to drive loudspeakers.

Abstract: A signal manipulator for manipulating an audio signal having a transient event may have a transient remover, a signal processor and a signal inserter for inserting a time portion in a processed audio signal at a signal location where the transient event was removed before processing by the transient remover, so that a manipulated audio signal has a transient event not influenced by the processing, whereby the vertical coherence of the transient event is maintained instead of any processing performed in the signal processor, which would destroy the vertical coherence of a transient.

Abstract: Communicating an audio message to a listener of an audio player device. An audio message file is generated at a workstation and sent to the audio player device via a network. In response to receipt of the audio message file, the audio player device halts play of a song or other audio content that was being played by the audio player device at a time of receipt of the audio message file, and plays the audio message file. Alternately, the audio player device plays the audio message file after completion of play of the song or other audio content that was being played by the audio player device at a time of receipt of the audio message file.

Abstract: A noise suppression device includes a phase difference derived suppression coefficient computation section that over a phase difference utilization range computes for each frequency a phase difference derived suppression coefficient based on a phase difference, an amplitude ratio derived suppression coefficient computation section that computes for each frequency an amplitude ratio derived suppression coefficient based on an amplitude ratio or an amplitude difference, and based on the amplitude conditions, and a suppression section that suppresses noise contained in the input sound signals based on a suppression coefficient determined by using the phase difference derived suppression coefficient and the amplitude ratio derived suppression coefficient.

Abstract: A signal manipulator for manipulating an audio signal having a transient event may have a transient remover, a signal processor and a signal inserter for inserting a time portion in a processed audio signal at a signal location where the transient event was removed before processing by the transient remover, so that a manipulated audio signal has a transient event not influenced by the processing, whereby the vertical coherence of the transient event is maintained instead of any processing performed in the signal processor, which would destroy the vertical coherence of a transient.

Abstract: An apparatus receives an input encoded audio data signal comprising a base layer and at least one enhancement layer. A reference unit (103) generates reference audio data corresponding to audio data of a reference set of layers. A layer unit (105) divides the layers of the input signal into a first subset and a second subset. A sample unit (107) generates sample audio data corresponding to the audio data of the first subset. A comparison unit (109) generates a difference measure by comparing the sample audio data to the reference audio data based on a perceptual model. An output unit (111) then determines if the difference measure meets a similarity criterion and generates an output signal without audio data from a layer of the second subset if the similarity criterion is met and including the audio data of the layer otherwise. The invention may provide reduced data rates without an unacceptable degradation of quality.

Abstract: A signal manipulator for manipulating an audio signal having a transient event may have a transient remover, a signal processor and a signal inserter for inserting a time portion in a processed audio signal at a signal location where the transient event was removed before processing by the transient remover, so that a manipulated audio signal has a transient event not influenced by the processing, whereby the vertical coherence of the transient event is maintained instead of any processing performed in the signal processor, which would destroy the vertical coherence of a transient.

Abstract: A system and method for routing digital audio data synchronized where the source and destination units are synchronized to individual, local chip-scale atomic clocks. A source unit receives audio data and digitizes the data in synchronization to a local atomic clock. The data is transmitted via a communications network to at least one destination unit that receives the network transmitted data, decodes and reconstructs the data in synchronization with its own local atomic clock, and outputs the data to an audio destination.

Abstract: Technology for grouping, consolidating, and pairing individual playback devices with network capability (players) to stimulate a multi-channel listening environment is disclosed. Particularly, the embodiments described herein enable two or more playback devices to be paired, such that multi-channel audio is achieved. Such embodiments may be used to produce stereo and multi-channel audio environments for television and movies.

Abstract: An acoustic playback system including a digital filter; and a plurality of digital modulators each of which output a digital signal to one of a plurality of speakers configured with speakers driven by digital signals having different play back bandwidths; wherein the digital filter converts a digital audio signal which is input into a plurality of digital audio signals of a plurality of frequency bandwidths corresponding to play back bandwidths of the plurality of speakers, and outputs each of the digital audio signals of the plurality of frequency bandwidths to one of the plurality of digital modulators; each of the plurality of digital modulators outputs the modulated digital signal to the speaker of a play back bandwidth corresponding to a frequency bandwidth of the digital audio signal which is input by performing miss match shaping after noise shaping to a digital audio signal which is input; and each number of bits of a digital signal which is output by each of the digital modulators is different is pro

Abstract: Systems and methods are provided herein relating to audio matching. Descriptors can be generated based on anchor points and interest points that characterize the local neighborhood surrounding the anchor point. Characterizing the local spectrogram neighborhood surrounding anchor points can be more robust to pitch shift distortions and time stretch distortions. Those anchor points surrounded by a lack of spectral activity or even spectral activity can be filtered from further examination. Using these pitch shift and time stretch resistant audio features within descriptors can provide for more accurate and efficient audio matching.

Abstract: There is provided an electronic device having an audio system for reproducing audio signals. An exemplary electronic device has an analog region and a separate and non-overlapping digital region. The electronic device comprises an analog ground plane disposed within the analog region and a digital ground plane disposed within the digital region. Digital circuitry is disposed opposite the digital ground plane, wherein digital signals are routed on or over the digital ground plane. Analog circuitry is disposed opposite the analog ground plane, wherein analog signals are routed on or over the analog ground plane. At least one audio output channel disposed opposite the analog ground plane.

Abstract: An audio testing system is configured for receiving an audio signal from an audio emitting device. The system samples the audio signal and obtains sampling points from the audio signal for determining if the audio signal has been distorted. A related method is also disclosed.

Abstract: Techniques for grouping or pairing individual audio products with network capability (players) to stimulate a multi-channel listening environment are disclosed. In instead of grouping selected players to play back an audio item, a user is allowed to activate one of the players to process the data of the audio item, essentially separating the data into individual streams, each of the streams representing a single-sound track and being played back in one of the players, thus creating a multi-channel listening environment with the selected players.

Abstract: An audio testing system is configured for receiving an audio signal from the an audio emitting device. The system samples the audio signal and obtains sampling points from the audio signal for determining if the audio signal has been distorted. A related method is also disclosed.