Abstract: Systems and techniques are provided for finding differences in nearly-identical audio recordings. A first version of an audio recording may be received. A second version of the audio recording may be received. A difference between the first version of the audio recording and the second version of the audio recording may be determined using time domain analysis and frequency domain analysis. The difference may be stored in a difference set. The difference set may allow the first version of the audio recording to be distinguished from the second version of the audio recording. The audio recording may be a music track. The first version of the audio recording may be an explicit version of the music track. The second version of the audio recording may be an edited version of the music track.

Abstract: A microphone array processing system and method carried out in the system. In one embodiment, the system includes: (1) a beamformer configured to perform adaptive beamforming on gain-compensated signals received from a plurality of microphones, the adaptive beamforming including dynamic range compression and diagonal loading of a sample correlation matrix based on order statistics and (2) a postfilter configured to receive an output of the beamformer and reduce noise components remaining from the beamforming.

Abstract: An apparatus comprising at least one processor and at least one memory including computer program code the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform processing at least one control parameter dependent on at least one sensor input parameter, processing at least one audio signal dependent on the processed at least one control parameter, and outputting the processed at least one audio signal.

Abstract: A feedback cancellation assembly for an electroacoustic communication apparatus may include a signal transmission path for generation and emission of an outgoing sound signal to an external environment through an electrodynamic loudspeaker and a signal reception path comprising a microphone for generation of a microphone input signal corresponding to sound received from the external environment. The signal reception path may generate a digital microphone signal. The outgoing sound signal may be acoustically coupled to the microphone. An electronic feedback cancellation path may be coupled between a tapping node and a summing node to produce a feedback cancellation signal to the summing node.

Abstract: To be able to change settings for selective changing control of a program as a target for sound input/output flexibly. A background music (BGM) sound selection managing section obtains priority values set to a plurality of programs, respectively. The BGM sound selection managing section performs control such that a program selected from among the plurality of programs on a basis of the obtained priority values becomes a target for selective sound input/output from/to an outside.

Abstract: An audio device and method for adding a watermark data to digital signals which represent audio generates a digital signature by applying a hash calculation on the hardware address of the audio device. The audio device searches for an orthogonal code in a walsh matrix. The audio device decodes audio digital signals according to the orthogonal code to output decoded data. The audio device loads the orthogonal code into an identification information of the audio device to form the watermark data in accordance with a determination that the decoded value is not equal to one of a plurality of specific values, wherein the identification information includes the hardware address of the audio device. The audio device adds the watermark data into audio digital signals.

Abstract: Certain implementations of the disclosed technology may include systems and method for handling application notifications. According to an example implementation, a method is provided. The method can include receiving a plurality of audio feeds from a respective plurality of applications, and determining a priority status for one or more of the respective applications. Based on the determined priority status, the method may further include determining a first prioritized audio feed and a second prioritized audio feed from the plurality of applications. The method includes detecting, in a signal associated with the first prioritized audio feed, a signal gap having a gap start. The method includes modifying, based at least in part on the signal of the first prioritized audio feed, one or more parameters associated with at least the second prioritized audio feed, and outputting, to an output device, at least a portion of the first prioritized audio feed.

Abstract: Methods and systems described herein relate to management of media playback based on media preferences. A computing device may receive data indicating that a media item is available to be played by a media playback system. A media preference associated with the media item may then be identified based on the received data. The media preference may be identified in a preference database. Based on the media preference, the computing device determines whether the media item is or is not to be played by the media playback system. If a determination is made that the media item is not to be played, the computing device sends to the media playback system, an indication that the media item is not to be played. If a determination is made that the media item is to be played, the computing device causes the media item to be played by the media playback system.

Abstract: Embodiments of the present invention disclose a method, computer program product, and system for real-time determination of attentiveness of an audience in a room to a speaker. A computer determines amounts of wireless activity of a computing device within the room of the audience over time during the presentation. Based in part on the amounts of wireless activity of the computing device, the computer determines and initiates display of measures of attentiveness of the audience over the time during the presentation, to display changes in the measures of attentiveness of the audience to the speaker during the presentation. In another embodiment, the computer determines amounts of attentiveness of the audience within the room over time during the presentation utilizing sensors located throughout the room.

Abstract: Embodiments described herein involve generating and modifying a sub-index of a media index. An example method may involve receiving requests to play back media items in a media index, tracking the requests to play back the media items in the media index, determining a set of media items from among the media items in the media index based on the tracked requests to play back media items in the media index, and indexing the determined set of media items into a sub-index. The set of media items have been played at least a pre-determined threshold number of times within a pre-determined threshold period of time. The media items in the sub-index are a subset of the media items in the main index.

Abstract: An electronic device includes a housing having a top wall, and a microphone module mounted in the housing. The microphone module includes a mounting seat having two oppositely spaced-apart upright suspension surfaces extending transversely from the top wall. A buffer member includes a main body disposed between and spaced apart from the suspension surfaces, and two suspension bumps protruding from the main body toward and abutting respectively and tightly against the suspension surfaces. The main body has an inner portion defining an accommodating space. A microphone body is disposed in the accommodating space.

Abstract: This application discusses a system that can include a master device and a slave device coupled to the master device via an audio jack connector. In an example, the master device and the slave device can be configured to exchange information via a single conductive path of the audio jack connector using a digital communication protocol. The single conductive path can be configured to conduct audio signals of an audio transducer and the slave device can include a depletion-mode transistor to complete a circuit including the audio transducer and the single conductive path in a first state, and to isolate the audio transducer from the single conductive path in a second state.

Abstract: An echo path change detector may be used to control the rate of adaptation in an acoustic echo canceller. When echo path change is declared, the rate of adaptation may be increased. However, echo path change should not be declared in the presence of double talk, because rapid adaptation during double talk is undesirable. Accordingly, various features are disclosed for detecting echo path changes while avoiding the declaration of such changes in the presence of double talk.

Abstract: A method is carried out by a receiving and playing device (10), for receiving and playing a media stream. The method includes a first playing procedure (s12), a playing mode switching procedure (s14), and a second playing procedure (s16). The first playing procedure (s12) includes receiving a media stream through a communication medium or network (30) and playing the received media stream. The playing mode switching procedure (s14) includes determining (s142) whether a media content about to be received or being received is locally stored and, if so, switching to the second playing procedure (s16). The second playing procedure (s16) includes playing the media content based on at least the locally stored media content. The invention also relates to methods carried out by a transmitting device (20), to receiving and playing devices (10), to transmitting devices (20), and to computer programs.

Abstract: An information processing apparatus that controls a reproduction section to reproduce first content having a first melodic parameter; receives a user input corresponding to a change in the first melodic parameter; and controls the reproduction section to reproduce second content having a second melodic parameter based on the received user input.

Abstract: A display unit includes: a main body section including a first front surface, a first rear surface, and a first side surface; one or a plurality of speaker boxes each including one or a plurality of speaker units and a housing containing the one or a plurality of speaker units, the one or a plurality of speaker boxes being selectively attachable with respect to one of the first side surface and the first rear surface in the main body section; and one or a plurality of attaching members commonly used for both at the time of attaching the one or a plurality of speaker boxes to the first side surface and at the time of attaching the one or a plurality of speaker boxes to the first rear surface.

Abstract: Microelectromechanical systems (MEMS) microphones associated with a tunable back cavity are described. Provided implementations can comprise a MEMS acoustic sensor element associated with a first back cavity, which first back cavity can be separated and/or acoustically coupled by a tuning port to a second back cavity. In addition, various physical and acoustic filtering configurations of MEMS microphones and tunable back cavities are described.

Abstract: The notification subscription service methodology and system provides notice to at least two contact persons when an event occurs that may affect property, or that might involve an individual such as an elderly parent in whom these persons have an interest. Pertinent information about the property or person as well as the contact persons is solicited at the time of subscription. The information is stored in a computer database in a call center. Materials are provided to the subscriber including a yard sign or window decal that has a distinct visual appearance and call center contact information. Nearby neighbors are provided with a card which includes the property address and owner's name and instructions to call the center when an event occurs. This contact by an observer of the event triggers a preferred question protocol and leads to the contacting of the contact persons through preferred contact modes such as cell phone, text, regular phone or e-mail.

Abstract: Methods and devices for enabling and disabling the updating of an adaptive filter for echo cancellation of a communication device are disclosed. An echo canceller may include an adaptive filter enabled to update responsive to a determination that a first condition is satisfied that there is no double talk detected on the communication device, and a determination that a second condition is satisfied based, at least in part, on a performance characteristic. The adaptive filter may be disabled from updating responsive to at least one of the first condition and the second condition not being satisfied. Described is disabling the adaptive filter from updating responsive to detecting a performance characteristic of the adaptive filter to fail to meet a condition indicating that the adaptive filter is diverging. The condition to be met may be independent of whether double-talk is determined to be present on the communication device.

Abstract: An apparatus and a method for outputting an audio signal in a portable terminal are provided. The portable terminal for outputting an audio signal includes an ear jack, a modem, and an amplifier. The ear jack connects the portable terminal with one of an earphone and an external apparatus. The modem detects whether one of the earphone and the external apparatus is connected to the ear jack. When connection of the external apparatus is detected, the amplifier high power-amplifies the audio signal and outputs the same to the external apparatus according to a control of the modem.