|| List of recent Audio-related patents
| Automated device access|
A method of unlocking a locked device includes receiving a device identifier over a wireless communication protocol, determining if the device identifier is associated with a list of trusted devices, transmitting a request to generate an acoustic signal over the wireless communication protocol based on the determination, receiving the acoustic signal as an audio sound generated external to the locked device, estimating a distance between a source of the audio sound and the locked device, and unlocking the locked device based on the estimation.. .
| Method, system, and apparatus for acquiring comment information when watching a program|
Embodiments of the present invention disclose a method, a system, and an apparatus for acquiring comment information when watching a program. The method includes: acquiring, by a comments functional entity, comment content sent by the end user on an iptv program and related information corresponding to the comment content; send the related information corresponding to the comment content to a metadata control functional entity, so as to enable an end user who demands and watches the iptv program to select and play the comment content corresponding to the iptv program.
| Enhanced program preview content|
Methods and apparatus for providing an enhanced epg or epg banner are described. A method of displaying first and second audiovisual content, the first audiovisual content comprising a current program and the second audiovisual content comprising audiovisual content relating to a future program according to a program broadcast schedule, the method comprising receiving the first audiovisual content at a media playback device, receiving the second audiovisual content at the media playback device from a remote content system over a packet-based data network, in response to user input, outputting the first and second audiovisual content to an output device having a screen, and controlling the screen of the output device to display the first and second audiovisual content concurrently.
| Dynamic customization and monetization of audio-visual content|
Systems and methods for dynamic customization of audio-visual content are described. In some implementations, a process may include receiving at least one audio-visual core portion, receiving at least one selection signal indicative of a viewer preference, modifying the audio-visual core portion with at least one revised content portion in accordance with the at least one selection signal to create a dynamically customized audio-visual content, outputting the dynamically-customized audio-visual content; and receiving a consideration for the dynamically-customized audio-visual content..
| Information storage medium having interactive graphic data for using a pointer to control a menu of audio/video data and method and apparatus for reproducing stored data|
An apparatus for reproducing stored data by using a pointer is provided. The apparatus including: a reader which reads audio/video (av) data and interactive graphic data including at least one menu; an information input which obtains information related to the position of the pointer; a decoder which decodes the av data and the interactive graphic data; and a controller which determines a selection state of a button included in the at least one menu by comparing information related the position and size of the button, included in the interactive graphic data, with the information related to the position of the pointer..
| Method and system for creating mnemonics for locations-of-interests|
A method and system for creating an electronic journal entry based on a mnemonic, wherein the mnemonic is created by a terminal in response to receiving a command from a user at a location-of-interest. The mnemonic comprises calendrical time of the command, an audio recording, and a photo that was recorded and captured at that location-of-interest.
| Audio processing device, audio processing method, and program|
An audio processing device includes: a display control unit, configured to control display of a plurality of audio gears, which are gears movable within a screen, each audio gear corresponding to predetermined audio data; and a playback control unit configured to control synchronized playback of a plurality of audio data; wherein, in the event that a plurality of the audio gears are directly or indirectly meshed, the display control unit rotates the plurality of audio gears, and the playback control unit performs synchronized playback of the plurality of audio data corresponding to the plurality of audio gears.. .
| Adjusting audio volume of multimedia when switching between multiple multimedia content|
A multiple media module receives data indicating a status of a tab of a graphical user interface (gui) presented on a user device. The multiple media module determines, based on the data indicating the status of the tab, whether the tab is active, the tab comprising a streaming media player.
| Enabling audience interaction with a broadcast media program|
The present application is directed towards systems and methods for providing audience interaction with a broadcast media program. A producer, utilizing an intuitive interface provided by a computing device can request audience input by providing polls or questions, which may be transmitted to a plurality of remote computing devices of the audience.
| Methods and systems for transmitting information between electronic devices|
Various embodiments of methods and systems for establishing communication over a wireless communication network between a master device and a partial function device. The master device and partial function device can use a separate communication channel during setup or configuration for communicating over the wireless communication network.
| Sharing audio and video device on a client endpoint device between local use and hosted virtual desktop use|
A communication is established between a client device and a server device, where the server device executes one or more hosted virtual desktop (hvd) applications for the client device. A media data stream including at least one of audio content and video content is transmitted from the client device to the server device, where audio and video content of the media data stream is captured by one or more input devices at the client device and is utilized by an hvd application at the server device.
| System and method for phonetic searching of data|
A method of phonetically searching media information comprises receiving a plurality of search queries from one or more client systems and providing a phonetic representation of each search query. One or more search jobs are instantiated, each search job comprising a plurality of tasks, each task being arranged to sequentially read a block from an archive file.
| Adaptive audio codec selection during a communication session|
A method for adaptive audio codec selection during a communication session is disclosed. The method can include negotiating a set of audio codecs for use during the communication session.
| Intensity stereo coding in advanced audio coding|
A system and method for selectively applying intensity stereo coding to an audio signal is described. The system and method make decisions on whether to apply intensity stereo coding to each scale factor band of the audio signal based on (1) the number of bits necessary to encode each scale factor band using intensity stereo coding, (2) spatial distortions generated by using intensity stereo coding with each scale factor band, and (3) switching distortions for each scale factor band resulting from switching intensity stereo coding on or off in relation to a previous scale factor band..
| Displaying additional data about outputted media data by a display device for a speech search command|
A speech search method performed by a display device, the method including outputting media data including audio data, receiving a speech search command for additional data about the outputted media data from a user, the speech search command including at least one query word, determining whether the at least one query word matches a query term that is full and searchable, when the at least one query word matches the query term that is full and searchable, performing a search for the additional data using the query term, and when the at least one query word does not match the query term that is full and searchable, determining the query term from a predetermined amount of the audio data prior to receiving the speech search command and performing the search for the additional data using the query term.. .
| Method and system for reproduction of digital content|
The present invention relates to a method and system of aurally reproducing visually structured content by associating specific audio formatting elements with visual formatting elements of the content. A method and system for reproducing visually structured content by associating abstract visual elements with visual formatting elements of the content is also described..
| Computer-implemented system and method for transcribing verbal messages|
A computer-implemented system and method for transcribing verbal messages is provided. Verbal messages each comprising audio content are received.
| Apparatus and method for queuing jobs in a distributed dictation/transcription system|
A distributed dictation/transcription system is provided. The system provides a client station, dictation manager, and dictation server connected such that the dictation manager can select a dictation server to transcribe audio from the client station.
| Method and system for noise reduction|
A method for noise reduction is provided including: beamforming audio signals sampled by a microphone array to get a signal with an enhanced target voice and a signal with a weakened target voice; locating a target voice in the audio signal sampled by the microphone array; determining a credibility of the target voice when the target voice is located; updating an adaptive filter coefficient according to the credibility, and filtering the signal with the enhanced target voice and the signal with the weakened target voice according to the updated adaptive filter coefficient to get a signal with reduced noise; and weighing a voice presence probability by the credibility, and enhancing the signal with reduced noise according to the weighed voice presence probability.. .
| Sound processing device, sound processing method, and sound processing program|
A sound processing device includes a separation unit configured to separate at least a music signal and a speech signal from a recorded audio signal, a noise suppression unit, a music feature value estimation unit, a speech recognition unit, a noise-processing confidence calculation unit, a music feature value estimation confidence calculation unit, a speech recognition confidence calculation unit, and a control unit configured to calculate at least one behavioral decision function of a speech behavioral decision function associated with speech and a music behavioral decision function associated with music based on a noise-processing confidence value, a music feature value estimation confidence value, and a speech recognition confidence value and to determine behavior corresponding to the calculated behavioral decision function.. .
| Method and apparatus for canceling vocal signal from audio signal|
Provided is a method of canceling a vocal signal, wherein the method includes obtaining a difference signal between two audio signals; and smoothing the frequency of the difference signal. Also provided is a device for canceling a vocal signal, the device including a subtracter which obtains a difference signal between two audio signals; and a frequency smoothing unit which smoothes a frequency of the difference signal..
| Time-shifting distribution of high definition audio data|
A system may time-shift the distribution high-definition (hd) audio. The system can obtain an audio stream from a specified audio source, transcode the audio stream into an hd audio stream, and store the hd audio stream in a memory.
| System and method for phonetic searching of data|
A method for phonetically searching media including a plurality of audio tracks is disclosed where each audio track is indexed to provide a phonetic representation of the audio track. The method comprises obtaining a text search query and searching for the text query against a set of reference documents to obtain a sub-set of pseudo-relevant documents.
| Method and apparatus for enhanced phonetic indexing and search|
The subject matter discloses a method two phase phonetic indexing and search comprising: receiving a digital representation of an audio signal; producing a phonetic index of the audio signal; producing phonetic n-gram sequence from the phonetic index by segmenting the phonetic index into a plurality of phonetic n-grams; and producing an inverted index of the plurality of phonetic n-grams.. .
| Remote node for bi-directional digital audio data and control communications|
A remote node for bi-directional digital audio data and control communications includes remote components including: a remote transceiver; a remote low-voltage power supply that provides power to the other remote node components; and a sub-system that derives a master clock signal from received digital audio data. The sub-system includes a phase-locked loop (pll) that is locked to a pll input signal and outputs a remote node clock signal, and a switch that selects the pll input signal from the derived clock signal and the remote node clock signal.
| Virtual wireless multitrack recording system|
Disclosed are systems and methods for wirelessly recording multi-track audio files without the data corruption or loss of data that typically occurs with wireless data transmission. In some aspects of the present invention, each performer is equipped with a local audio device capable of locally recording the respective performer's audio while also transmitting it to a master recorder.
| Facilitating comprehension in communication systems|
A method, computer program product, and computer system for receiving information from a first computing device, the information including digital audio data, the information sent to a second computing device by the first computing device. The information is received from the second computing device.
| Parallel digital filtering of an audio channel|
An electronic audio apparatus is described that uses a digital audio filter in which a splitter separates an input frame of discrete time audio into different time interval portions. Separate digital filter blocks then operate in parallel upon those time interval portions, respectively.
| Electrosurgical system|
An electrosurgical system can include an electrosurgical generator, a feedback circuit or controller, and an electrosurgical tool. The feedback circuit can provide an electrosurgery endpoint by determining the phase end point of a tissue to be treated.
| Signal processing system, signal processing apparatus, and storage medium|
There is provided a signal processing system including a first detection section which detects, from outside a body cavity, first audio signals of a prescribed part inside the body cavity, a second detection section which detects, from inside the body cavity, second audio signals of the prescribed part inside the body cavity, and a generation section which generates third audio signals based on the first audio signals and the second audio signals.. .
| Receiver and mobile communication terminal including the receiver|
A receiver, a mobile terminal including the receiver, and a method of disposing the receiver on the mobile terminal are disclosed. The mobile terminal including: a receiver including: a casing including walls and an inner space defined at least partially by the walls, a diaphragm driving unit disposed in the casing, a diaphragm including a central region disposed in the casing, a projection unit extending from the casing, the projection unit including walls and a receiver hole disposed in one of the walls, and an audio path defined within the casing walls and the projection unit walls; and a printed circuit board (pcb) including a cutout along an edge.
| Audio processing device, audio processing method, and recording medium recording audio processing program|
An device includes an audio output unit, a first audio input unit, a second audio input unit that are disposed in a position closer to the audio output unit than the first audio input unit, a unit for outputting a combined signal of which audio signals from the first and second audio input unit are combined so as forming directivity in which sensitivity in a direction of the audio output unit is low when viewed from the first and second audio input units, a unit for generating artificial echo corresponding to an echo component mixed in the audio inputted to the first audio input unit, and a unit for performing an echo suppression process to the combined signal by using the artificial echo.. .
| Method and system for providing one or more location-based services using the location-of-interest of an electronic journal|
A method and system for providing one or more location-based services using the location-of-interest of a user or an electronic journal entry. In the first service, a user's terminal periodically determines whether its current geo-location is within a predefined distance of a location-of-interest.
| Apparatuses and methods for streaming audio and video|
A wirelessly enabled content delivery apparatus includes a surface; a wireless data system and a data output interface. The surface has a front side and a back side.
| Predictive messaging service for active voice calls|
Concepts and technologies disclosed herein are for a predictive messaging service for active voice calls. A method for predictive messaging may include receiving, at a predictive messaging system, incoming audio associated with an active voice call, converting the audio into text, analyzing the text to predict a message that a user participating in the active voice call is expected to send, creating the message, and sending the message to a network element for delivery to a destination..
| Audio file or voice message delivery system and method of delivering|
Provide is an audio file delivery system and a method of delivering an audio file. The system and method include a recording device, a wireless device, a job creation process, a job execution process, a telecom gateway and email verification.
| Mechanism for improved interoperability when content protection is used with an audio stream|
A method and system that configure communication between devices in a network, where one device may support content protection, and another device may or may not support content protection. The devices may support communication utilizing bluetooth® technology.
| Communications system|
An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data input.
| Toothbrush training system|
A toothbrush training system for children includes an instrumented toothbrush with physics sensors, along with optional feedback elements, interacting with a dynamic audio-visual instructional program providing guidance, assessment and feedback on proper brushing procedures. The system provides instruction on tooth brushing technique in combination with monitoring and corrective feedback based on that technique in the context of an audio-visual game environment.
| Method and system for learning call analysis|
A system and method are presented for learning call analysis. Audio fingerprinting may be employed to identify audio recordings that answer communications.
| Reproduction apparatus and method of controlling reproduction apparatus|
A reproduction apparatus and method for controlling the reproduction apparatus includes acquiring an image capable of refocusing, acquiring audio associated with image capable of refocusing, and controlling a the timing of an output of the audio in accordance with the refocus position of the image.. .
| Tagging video content|
A method includes identifying video content that includes an audiovisual component, receiving an identification of the audiovisual component, and receiving at least one component location of the audiovisual component in the video content. Each component location indicates a time and a screen position with which the audiovisual component is associated with in the video content.
| Speaker module and related electronic device|
A speaker module capable of adjusting an outputting direction of an audio signal is disclosed in the present invention. The speaker module includes a base, a supporter, a speaker and a lifting mechanism.
| Earphone with tension diaphragm|
An earphone with tension diaphragm includes a front portion, a rear portion, a silicone gel earplug, a filtering net and a sound generating unit. As a user pushes the earphone into his ear, the diaphragm of the sound generating unit has a deformation and thus an air turbulence would be generated.
| Vibration-reducing passive radiators|
An audio system includes a passive radiator that is attached to one end of a lever arm. The other end of the lever arm is attached to a mass that serves to move out of phase of the passive radiator to cancel mechanical vibrations of the passive radiator, but without significantly affecting audio output.
| Directed audio|
Embodiments provide apparatuses and systems which include a front surface, a back surface, and a second back surface. A speaker may be disposed between the front surface and the back surface.
| Thin film bone-conduction transducer for a wearable computing system|
A thin film bone-conduction transducer for a head-mountable device is provided. In one example, the head-mountable device may include a head-mountable display that is configured to provide bone-conduction audio using one or more bone-conduction transducers.
| Gateway for a wireless hearing assistance device|
Disclosed herein, among other things, are methods and apparatus for providing a gateway for a wireless hearing assistance device. One aspect of the present subject matter relates to a method for wirelessly communicating with a hearing assistance device.
| Method for controlling a speaker array to provide spatialized, localized, and binaural virtual surround sound|
A system and method for producing a binaural and localized audio signal to a user is provided. A signal processing method is provided for delivering spatialized sound in various ways using highly optimized inverse filters to deliver narrow localized beams of sound from the included speaker array.
A speaker includes a housing and four substantially similar electro-acoustic drivers secured inside the housing. The drivers are driven by substantially the same audio signal and are arranged such that the net mechanical vibrational force between the drivers and the housing is substantially zero.
| Electrical system for a speaker and its control|
An electrical apparatus includes a frame, a speaker connected to the frame, a digital signal processor in communication with the speaker to receive audio data and control data to control the speaker, the digital signal processor connected to the frame, and a lamp base coupler electrically connected to the speaker and receiver, the lamp base coupler detachably connectable to a power source, when the power source is present. A method of steering the diffused sound field includes, broadcasting at least one calibration audio signal through a plurality of speakers (m) in an audio system, receiving the calibration audio signal in a plurality of microphones spaced apart and positioned about at a listening position, and calculating respective relative speaker placement angles relative to the listening position between each of the plurality of speakers in response to receipt of the calibration audio signal in the plurality of microphones..
| Distributed, self-scaling, network-based architecture for sound reinforcement, mixing, and monitoring|
A distributed self-scaling network audio processing system includes end nodes interconnected by packet-switched network and operating as peers on the network. Each of the end nodes supports local input processing, mixing, and output processing.
| Audio device and output method thereof|
An audio device and an output method thereof are provided. The audio device includes: an envelope detector configured to detect an envelope of an input audio signal; a power supply which includes a linear power supply (lps) and a switching-mode power supply (smps); an amplifier configured to amplify the input audio signal; an output unit configured to output the audio signal amplified by the amplifier; and a controller configured to compare a voltage level of the detected envelope with a preset level, select one of the lps and the smps based on a result of the comparison, and control the power supply to supply power from the selected one of the lps and the smps to the amplifier..
| Multimedia processing system and audio signal processing method|
A multimedia processing system is provided. The system comprises: a depth analyzing unit configured to receive an input image and retrieve a depth image according to the input image; and a audio processing unit configured to receive an input audio signal and the depth image, detect an audio object and position information corresponding to the audio object from the depth image, and retrieve an acoustic frequency range corresponding to the audio object from the input audio signal; wherein when the position information exceeds a predetermined range, the audio processing unit adjusts the acoustic frequency range of the input audio signal according to the position information to generate an output audio signal..
| Sound to haptic effect conversion system using mapping|
A haptic conversion system is provided that intercepts audio data, such as a digital audio signal, analyzes the audio data in frequency, and divides the analyzed audio data into one or more audio frequency regions, where each audio frequency region includes one or more audio sub-signals. The haptic conversion system further maps the one or more audio frequency regions to one or more haptic frequency regions, where each haptic frequency region includes one or more haptic signals.
| System and method for remotely controlling audio equipment|
An innovative new series of personal near-field active monitor speakers incorporating a digital wireless receiver and an industry-standard digital serial data interface that provides for wireless and wired digital audio streaming, apps for mobile devices or computers (smart phones, tablets, laptops etc.) to provide remote configuration of studio monitor modeling, i.e., emulations of popular near-field reference monitors; artist signature modeling, i.e., emulations of the favorite settings of well-known recording artists and music producers; and remote room equalization using the microphone integrated in a mobile or desktop personal computer, or an attached external microphone.. .
| Smart tool for headphones|
Systems, methods, and devices of the various embodiments enable headphone users to he hear audible announcements of relevance to the user. In the various embodiments, a user device, such as headphones, may receive an announcement, determine whether the announcement is of interest to the user, and pause the current audio output by the headphones and enable the user to hear the announcement.
| Electrostatic earphone|
An electrostatic earphone with a closed-back housing, a sleeve for acoustically sealing to an ear canal, and an electrostatic transducer is provided. The closed-back housing may include a nozzle for acoustic transmission of sound to the ear canal, and the sleeve may be removably attached to the nozzle.
| Computer program product for adaptive audio signal shaping for improved playback in a noisy environment|
Provided is a computer program product for adaptively enhancing an end-user's perceived quality, or quality of experience (qoe), of speech and other audio under ambient noise conditions. The computer program product comprises the steps of determining the ambient noise characteristics on a continuous basis to capture the time varying nature of ambient noises, and adaptively determining the most optimal signal shaping to be applied to the audio/speech signal to produce the most appropriate enhancement to compensate for the ambient noise impairment.
| System for adaptive audio signal shaping for improved playback in a noisy environment|
Provided is a system for adaptively enhancing an end-user's perceived quality, or quality of experience (qoe), of speech and other audio under ambient noise conditions. The system comprises the steps of determining the ambient noise characteristics on a continuous basis to capture the time varying nature of ambient noises, and adaptively determining the most optimal signal shaping to be applied to the audio/speech signal to produce the most appropriate enhancement to compensate for the ambient noise impairment.
| Method for adaptive audio signal shaping for improved playback in a noisy environment|
Provided is a method for adaptively enhancing an end-user's perceived quality, or quality of experience (qoe), of speech and other audio under ambient noise conditions. The method comprises the steps of determining the ambient noise characteristics on a continuous basis to capture the time varying nature of ambient noises, and adaptively determining the most optimal signal shaping to be applied to the audio/speech signal to produce the most appropriate enhancement to compensate for the ambient noise impairment.
| Echo modulation methods and system|
Methods and systems for echo modulation are described. In one embodiment, intensities of a plurality of values in multiple windows of an audio signal may be obtained.
| Method and apparatus for controlling audio output|
A method and portable terminal for automatically controlling an output volume of audio output of a head phone when the head phone is connected to a portable terminal are provided. The method of controlling an audio output in a portable terminal, includes outputting a test audio signal to a head phone for a preset playback time when the head phone is connected to the portable terminal; collecting neighboring noise interval information and impedance interval information of the head phone while the test audio signal is output to the head phone; determining impedance of the head phone based on the neighboring noise interval information and the impedance interval information; determining a gain of an audio signal based on the determined impedance; and amplifying the audio signal in proportion to the determined gain, and outputting the amplified audio signal to the head phone..
| Method for processing an audio signal with modeling of the overall response of the electrodynamic loudspeaker|
The method comprises the determination of an observation vector that comprises only electrical measurements of the voltage (umes) at the loudspeaker terminals and of the current (i) passing through the loudspeaker, and a state vector (x) whose components comprise: values of linear parameters of the loudspeaker response such as the electrical (re) and mechanical (req) resistance, and polynomial coefficients of nonlinear parameters such as the force factor (bl), the equivalent stiffness (keq) and the electrical inductance (le). The voltage and current measurements are applied to an estimator with a predictive filter of the extended kalman filter incorporating a representation of a dynamic model of the loudspeaker.
| Method and a system of providing information to a user|
A method and system for providing information to a user positioned in a room with two independent listening areas where, in one area, an audio signal is output compensating for the sound from the other area, and where a position between the two areas is indicated to a user. When the user moves about, the position and size of one listening area may change, and the user may be made aware of any conflict with the other listening area.
| Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources|
A sound system and method for capturing and reproducing sounds produced by a plurality of sound sources are disclosed. Sounds produced by the plurality of sound sources may be received and converted separately to separate audio signals without mixing the audio signals.
| Amplifier unit and mobile electronic device provided with the amplifier unit|
An amplifier unit suitable for a wide variety of uses, which can flexibly support diverse sound recording scenarios, and a mobile electronic device provided with the amplifier unit. An amplifier unit has microphone/line input terminals respectively provided on the topside surface and the left side surface.
| Secure system and method for audio processing|
A method and system for playing movies with object-based sound complying with industry security standards using less processing power than the prior art, comprises an integrated media block in which, in non-real-time, encrypted audio files are decrypted. The object-based and channel-based audio data is then rendered to theater specific channels in non-real time.
| Audio spatialization and environment simulation|
Methods are disclosed for improving sound localization of the human ear. In some embodiments, the method may include creating virtual movement of a plurality of localized sources by applying a periodic function to one or more location parameters of a head related transfer function (hrtf)..
| Nomadic device for controlling one or more portable speakers|
An apparatus for receiving audio data from a nomadic device is provided. The apparatus comprises a first portable speaker for being operably coupled to the nomadic device.
| Systems and methods for routing calls|
An ip-based call center is able to route video and audio calls. The call routing is skills-based, and can be configured to give preference first to representatives or agents associated with an entity, and then to representatives or agents within a network associated with that entity.
| Fire alarm with integrated firefighter communications system|
A fire control system may include a fire alarm control panel situated at a first location, the fire alarm control panel coupled to a first hardwire circuit. The fire control system may also include one or more telephone stations, wherein each telephone station of the one or more telephone stations is disposed at a different location than each other telephone stations and coupled through the first hardwire circuit to the fire alarm control panel, and one or more radio repeaters are each disposed at one or more respective locations, and wherein each radio repeater is operative to receive audio information as a radio signal and to transmit the audio information as an electrical signal through a second hardwire circuit to the central telephone..
| Modem with voice processing capability|
A network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network and a cable modem termination system. The described network gateway combines a qam receiver, a transmitter, a docsis mac, a cpu, a voice and audio processor, a voice synchronizer, an ethernet mac, and a usb controller to provide high performance and robust operation..
| High definition audio distribution system|
A system distributes high-definition (hd) audio across a local telephone network. The system receives an audio selection from a communication device linked through the local telephone network.
| Non-intrusive monitoring of quality levels for voice communications over a packet-based network|
Provided is a method and apparatus for objectively and non-intrusively measuring voice quality on live calls without disrupting the call session or the network. A communication system includes plural communities each including a switch that controls access to a packet-based data network for call sessions.
| Disc player and communication method|
A communication method is executed by a disc player to communicate with an external device. The disc player loads and reads a plurality of test discs.
| Distance measurements between computing devices|
Some implementations provide techniques and arrangements for distance measurements between computing devices. Some examples determine a distance between devices based at least in part on a propagation time of audio tones between the devices.