Abstract: Systems and methods for generating charging data records for commercial group-based messages broadcast by a telecommunications network to a group of subscribers are provided. In one aspect, a network element of a telecommunications network is configured to identify individual user devices that successfully received and processed a message that was broadcast over the telecommunications network to a target group of user devices. The identification of the particular devices in the target group of devices that successfully received and processed the broadcast message is used for generating sender based charging or sender-plus-receiver based charging data records for the subscribers of the telecommunication network.

Abstract: An encoding concept which is linear prediction based and uses spectral domain noise shaping is rendered less complex at a comparable coding efficiency in terms of, for example, rate/distortion ratio, by using the spectral decomposition of the audio input signal into a spectrogram having a sequence of spectra for both linear prediction coefficient computation as well as spectral domain shaping based on the linear prediction coefficients. The coding efficiency may remain even if such a lapped transform is used for the spectral decomposition which causes aliasing and necessitates time aliasing cancellation such as critically sampled lapped transforms such as an MDCT.

Abstract: A parametric stereo upmix method for generating a left signal and a right signal from a mono downmix signal based on spatial parameters includes predicting a difference signal comprising a difference between the left signal and the right signal based on the mono downmix signal scaled with a prediction coefficient. The prediction coefficient is derived from the spatial parameters. The method further includes deriving the left signal and the right signal based on a sum and a difference of the mono downmix signal and said difference signal.

Abstract: In accordance with an implementation of the disclosure, systems and methods are provided for providing an estimate for noise in a speech signal. An instantaneous power value is received that corresponds to a frequency index of a portion of the speech signal. A first weighted power value is updated based on the instantaneous power value and a first weighting parameter. A second weighted power value is updated based on the first weighed power value and a second weighting parameter. An estimate of the noise is computed from the instantaneous power value and the second weighted power value.

Abstract: An encoding apparatus comprises a frame processor (105) which receives a multi channel audio signal comprising at least a first audio signal from a first microphone (101) and a second audio signal from a second microphone (103). An ITD processor 107 then determines an inter time difference between the first audio signal and the second audio signal and a set of delays (109, 111) generates a compensated multi channel audio signal from the multi channel audio signal by delaying at least one of the first and second audio signals in response to the inter time difference signal. A combiner (113) then generates a mono signal by combining channels of the compensated multi channel audio signal and a mono signal encoder (115) encodes the mono signal. The inter time difference may specifically be determined by an algorithm based on determining cross correlations between the first and second audio signals.

Abstract: A method, system, and computer program product for enablement of a phone conversation. The method includes receiving a combined signal including an interference signal and a first voice signal from a first user having a communication with a second user. The interference signal can be used to prevent the first voice signal from being overheard by people near the first user. The first voice signal can be extracted from the combined signal based at least in part on the interference signal and transmitting the extracted first voice signal to the second user. The system and computer program product are also provided.

Abstract: Technologies for measuring a data throughput rate of a link typically used for transferring media catalogs and media between a media provider and an UPnP Control Point.

Abstract: A system, article, and method of acoustic signal mixing comprises use of a total pair that is a count of the number of addition coefficients and subtraction coefficients in a mixture configuration and used with a function applied to a frame of acoustic samples to determine an outcome.

Abstract: The present invention relates to an audio signal coding method and apparatus. The method includes: categorizing audio signals into high-frequency audio signals and low-frequency audio signals; coding the low-frequency audio signals by using a corresponding low-frequency coding manner according to characteristics of low-frequency audio signals; and selecting a bandwidth extension mode to code the high-frequency audio signals according to the low-frequency coding manner and/or characteristics of the audio signals.

Abstract: Methods, systems, and terminal devices for transmitting information are provided. An exemplary system includes a sending end and at least one receiving end. The sending end is configured to obtain audio data to be transmitted, encode the obtained audio data according to an M-bit unit length, and use a pre-set cross-platform audio interface to control an audio outputting device of the sending end to send the encoded audio data to the at least one receiving end. The M-bit unit length is an encoding length corresponding to each frequency of a number N of frequencies, N is greater than or equal to 2, and M is greater than 0. The at least one receiving end is configured to use the pre-set cross-platform audio interface to control an audio inputting device of the at least one receiving end to receive the encoded audio data.

Abstract: Features described herein relate to providing the capability to playback audiovisual content in a comprehensible manner at a rate adjustable by the viewer. For example, if a viewer wishes to watch a one hour news program, but the viewer only has thirty minutes to view the program, playback of the program at twice the rate, but in a comprehensible manner is provided. To provide the playback of the video at the adjustable rate, substitute audio is generated by adding or removing audio content without changing the playback rate of the audio. The video at the adjusted playback rate and the substitute audio at the normal playback rate may have the same duration and in some embodiments, may be presented synchronously.

Abstract: An embodiment according to the invention provides a capability of automatically predicting how favorable a given speech signal is for statistical modeling, which is advantageous in a variety of different contexts. In Multi-Form Segment (MFS) synthesis, for example, an embodiment according to the invention uses prediction capability to provide an automatic acoustic driven template versus model decision maker with an output quality that is high, stable and depends gradually on the system footprint. In speaker selection for a statistical Text-to-Speech synthesis (TTS) system build, as another example context, an embodiment according to the invention enables a fast selection of the most appropriate speaker among several available ones for the full voice dataset recording and preparation, based on a small amount of recorded speech material.

Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for building an automatic speech recognition system through an Internet API. A network-based automatic speech recognition server configured to practice the method receives feature streams, transcriptions, and parameter values as inputs from a network client independent of knowledge of internal operations of the server. The server processes the inputs to train an acoustic model and a language model, and transmits the acoustic model and the language model to the network client. The server can also generate a log describing the processing and transmit the log to the client. On the server side, a human expert can intervene to modify how the server processes the inputs. The inputs can include an additional feature stream generated from speech by algorithms in the client's proprietary feature extraction.

Abstract: In accordance with an example embodiment of the present invention, disclosed is a method and an apparatus for voice activity detection (VAD). The VAD comprises creating a signal indicative of a primary VAD decision and determining hangover addition. The determination on hangover addition is made in dependence of a short term activity measure and/or a long term activity measure. A signal indicative of a final VAD decision is then created.

Abstract: An audio encoder has a window function controller, a windower, a time warper with a final quality check functionality, a time/frequency converter, a TNS stage or a quantizer encoder, the window function controller, the time warper, the TNS stage or an additional noise filling analyzer are controlled by signal analysis results obtained by a time warp analyzer or a signal classifier. Furthermore, a decoder applies a noise filling operation using a manipulated noise filling estimate depending on a harmonic or speech characteristic of the audio signal.

Abstract: The present disclosure provides a voice recognition method for use in an electronic apparatus comprising a voice input module. The method comprises: receiving voice data by the voice input module; performing a first pattern voice recognition on the received voice data, including identifying whether the voice data comprises a first voice recognition information; performing a second pattern voice recognition on the voice data if the voice data comprises the first voice recognition information; and performing or refusing an operation corresponding to the first voice recognition information according to a result of the second pattern voice recognition. The present disclosure also provides a voice controlling method, an information processing method, and an electronic apparatus.

Abstract: A coding method, a decoding method, a coder, and a decoder are disclosed herein. A coding method includes: obtaining the pulse distribution, on a track, of the pulses to be encoded on the track; determining a distribution identifier for identifying the pulse distribution according to the pulse distribution; and generating a coding index that includes the distribution identifier. A decoding method includes: receiving a coding index; obtaining a distribution identifier from the coding index, wherein the distribution identifier is configured to identify the pulse distribution, on a track, of the pulses to be encoded on the track; determining the pulse distribution, on a track, of all the pulses to be encoded on the track according to the distribution identifier; and reconstructing the pulse order on the track according to the pulse distribution.

Abstract: The present invention relates to a method and a background estimator in voice activity detector for updating a background noise estimate for an input signal. The input signal for a current frame is received and it is determined whether the current frame of the input signal comprises non-noise. Further, an additional determination is performed whether the current frame of the non-noise input comprises noise by analyzing characteristics at least related to correlation and energy level of the input signal, and background noise estimate is updated if it is determined that the current frame comprises noise.

Abstract: Disclosed is a mobile terminal device and a radio base station apparatus capable of effectively feeding back PMIs by selecting a precoder using double codebooks W1 and W2 in downlink MIMO transmission. The mobile terminal device includes a feedback control signal generating section that individually performs channel coding for the first PMI selected from the first codebook for wideband/long-period and the second PMI selected from the second codebook for subband/short-period and a transmit section that transmits the individually channel-coded first and second PMIs to the radio base station apparatus on a physical uplink shared channel (PUSCH).

Abstract: An apparatus, method, system and computer-readable medium are provided for generating one or more segments associated with content. The segments may include fragments that may correspond to portions of the content. The segments and/or the fragments may be included in a playlist, and may be based at least in part on a user selection.

Abstract: A method for speech retrieval includes acquiring a keyword designated by a character string, and a phoneme string or a syllable string, detecting one or more coinciding segments by comparing a character string that is a recognition result of word speech recognition with words as recognition units performed for speech data to be retrieved and the character string of the keyword, calculating an evaluation value of each of the one or more segments by using the phoneme string or the syllable string of the keyword to evaluate a phoneme string or a syllable string that is recognized in each of the detected one or more segments and that is a recognition result of phoneme speech recognition with phonemes or syllables as recognition units performed for the speech data, and outputting a segment in which the calculated evaluation value exceeds a predetermined threshold.

Abstract: Features are disclosed for identifying and providing command suggestions during automatic speech recognition. As utterances are interpreted, suggestions may be provided based on even partial interpretations to guide users of a client device to commands available via speech recognition.

Abstract: A method for speech retrieval includes acquiring a keyword designated by a character string, and a phoneme string or a syllable string, detecting one or more coinciding segments by comparing a character string that is a recognition result of word speech recognition with words as recognition units performed for speech data to be retrieved and the character string of the keyword, calculating an evaluation value of each of the one or more segments by using the phoneme string or the syllable string of the keyword to evaluate a phoneme string or a syllable string that is recognized in each of the detected one or more segments and that is a recognition result of phoneme speech recognition with phonemes or syllables as recognition units performed for the speech data, and outputting a segment in which the calculated evaluation value exceeds a predetermined threshold.

Abstract: The present invention provides a method for personalizing voice assistant. First, the voice module is activated. Then, the voice message received by the voice module is recognized. According to the recognition result, the personal name in the voice message is converted to the intelligent conversation name at a remote site, and thus triggering an intelligent conversation module of the server for providing the service of intelligent conversation. Accordingly, the present invention corresponds the universal intelligent conversation name to the personal name for triggering the intelligent conversation module. Consequently, the voice assistant can be personalized.

Abstract: The embodiments of the present invention improves conventional attenuation schemes by replacing constant attenuation with an adaptive attenuation scheme that allows more aggressive attenuation, without introducing audible change of signal frequency characteristics.

Abstract: Briefly, a variety of embodiments, including the following, are described: a system embodiment and methods that allow random access to voice messages, in contrast to sequential access in existing system embodiments; a system embodiment and methods that allow for the optional use of voice recognition to enhance usability; and a system embodiment and methods that apply to the area of voicemail.

Abstract: A wearable terminal includes voice data generation unit a voice data generation unit configured to generate audio data, a sensing unit configured to sense a motion of a user's upper limb in a first axis direction perpendicular to a plane defined by a vertically downward oriented direction of the upper limb and a direction of movement of the user, and to generate motion data concerning the motion, a determination unit configured to determine, based on the motion data, whether or not the user is going to perform remote control of a home electric appliance, and a data processing unit configured to process the audio data. The data processing unit includes a transmission data generation unit configured to generate transmission data corresponding to the audio data if the determination unit determines that the user is going to perform the remote control, and a transmission unit configured to transmit the transmission data to a network.

Abstract: A system and method is presented for performing dual mode speech recognition, employing a local recognition module on a mobile device and a remote recognition engine on a server device. The system accepts a spoken query from a user, and both the local recognition module and the remote recognition engine perform speech recognition operations on the query, returning a transcription and confidence score, subject to a latency cutoff time. If both sources successfully transcribe the query, then the system accepts the result having the higher confidence score. If only one source succeeds, then that result is accepted. In either case, if the remote recognition engine does succeed in transcribing the query, then a client vocabulary is updated if the remote system result includes information not present in the client vocabulary.

Abstract: Adaptive telephone relay service systems. Embodiments herein provide technical solutions for improving text captioning of Captioned Telephone Service calls, including computer systems, computer-implemented methods, and computer program products for automating the text captioning of CTS calls. These technical solutions include, among other things, embodiments for generating text captions from speech data using an adaptive captioning service to provide full automated text captioning and/or operator assisted automated text captioning, embodiments for intercepting and modifying a calling sequence for calls to captioned telephone service users, and embodiments for generating progressive text captions from speech data.

Abstract: Systems and methods for predicting trigger events, such as an advertisement during a video program, and activating a remote control device in response to the prediction are described. By activating the remote control device at a particular time, the remote control device may save energy when listening for data from one or more terminal devices. The time to activate the remote control may be based on one or more factors, including the current presentation position and/or presentation speed of the video program. A remote control device may take additional actions the next time it listens for data, including illuminating backlights, turning on a display, displaying content on the display, interacting with other devices, etc.

Abstract: Provided is an acoustic signal processing device for producing an output sound meeting listener's preferences by adjusting attack sound, reverberation, and noise component.

Abstract: In an embodiment, a method provides for receiving commands within a mobile communications application running on a mobile communication device. The method includes monitoring text entered into a text input region of a touchscreen keyboard module within a user interface on the mobile communication device for an interrupt code, and detecting an interrupt code. The method also includes determining a command from a plurality of commands, based on user inputs following the interrupt code, identifying an action from a plurality of actions corresponding to the plurality of commands, and initiating the action corresponding to the command.

Abstract: Example embodiments described herein generally provide for adaptive audio signal coding of low-frequency and high-frequency audio signals. More specifically, audio signals are categorized into high-frequency audio signals and low-frequency audio signals. Then, based on a set coding and/or characteristics of the low-frequency audio signals, the low-frequency coding manner is selected. Similarly, but in addition to, a bandwidth extension mode to code the high-frequency audio signals is selected according to the low-frequency coding manner and/or characteristics of the audio signals.

Abstract: A method and apparatus for processing encoded audio data that operates on batches of data having a predetermined time block size. An input/output memory buffer provides a delay from input to corresponding output of 2+x time blocks where x is a predetermined constant and 0<x<1.

Abstract: In one aspect, the invention provides an audio encoding method characterized by a decision being made as to whether the device which will decode the resulting bit stream should apply post filtering including attenuation of interharmonic noise. Hence, the decision whether to use the post filter, which is encoded in the bit stream, is taken separately from the decision as to the most suitable coding mode. In another aspect, there is provided an audio decoding method with a decoding step followed by a post-filtering step, including interharmonic noise attenuation, and being characterized in a step of disabling the post filter in accordance with post filtering information encoded in the bit stream signal. Such a method is well suited for mixed-origin audio signals by virtue of its capability to deactivate the post filter in dependence of the post filtering information only, hence independently of factors such as the current coding mode.

Abstract: An encoder and a method for encoding a digital signal are provided. The method includes encoding a preceding frame of samples of the digital signal according to a predictive encoding process, and encoding a current frame of samples of the digital signal according to a transform encoding process. The method is implemented such that a first portion of the current frame is also encoded by predictive encoding that is limited relative to the predictive encoding of the preceding frame by reusing at least one parameter of the predictive encoding of the preceding frame and only encoding the parameters of said first portion of the current frame that are not reused. A decoder and a decoding method are also provided, which correspond to the described encoding method.

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: A telematics system for a vehicle to be towed is provided. The telematics system includes a vehicle communication network configured to receive vehicle data from at least one vehicle system of a plurality of vehicle systems. The telematics system also includes a telematics module configured to determine a towing mode status of the vehicle, generate telematics data based on the vehicle data, and transmit the telematics data to a remote access system based on the towing mode status of the vehicle indicating that the vehicle is configured to be towed.

Abstract: A method for automatic segmentation of pitch periods of speech waveforms takes a speech waveform, a corresponding fundamental frequency contour of the speech waveform, that can be computed by some standard fundamental frequency detection algorithm, and optionally the voicing information of the speech waveform, that can be computed by some standard voicing detection algorithm, as inputs and calculates the corresponding pitch period boundaries of the speech waveform as outputs by iteratively •calculating the Fast Fourier Transform (FFT) of a speech segment having a length of approximately two periods, the period being calculated as the inverse of the mean fundamental frequency associated with these speech segments, •placing the pitch period boundary either at the position where the phase of the third FFT coefficient is ?180 degrees, or at the position where the correlation coefficient of two speech segments shifted within the two period long analysis frame maximizes, or at a position calculated as a combination

Abstract: Methods and apparatuses are disclosed for identifying locations of communication devices in a simulcast network. A comparator sends a location request to communication devices in a simulcast network. The location request includes timeslot assignments for each talk group in the simulcast network. The comparator receives responses from the communication devices. Each response is received in a timeslot assigned to a talk group. The comparator assigns network resources to talk groups in the simulcast network based at least in part on the received responses.

Abstract: Systems and method for audio processing are disclosed. Left and right channels of an audio data stream are combined to derive sum and difference signals. A time domain to frequency domain converter is provided for converting the sum and difference signals to the frequency domain. a first processing unit is provided for deriving a frequency domain noise signal based at least partly on the frequency domain difference signal. A second processing unit is provided for processing the frequency domain sum signal using the noise signal thereby to reduce noise artifacts in the sum signal. A frequency domain to time domain converter is provided for converting at least the processed frequency domain sum signal to the time domain.

Abstract: An encoder for predictively encoding a signal having a sequence of signal values has a predictor for performing an adaptive prediction in dependence on the signal, and in dependence on one or more weighting values, to obtain predicted signal values, wherein the predictor is configured to reset the weighting values at times which are dependent on the signal, and wherein the predictor is configured to adapt the weighting values to the signal between subsequent resets.

Abstract: Remote controllers and systems thereof are disclosed. The remote controller remotely operates a receiving host, in which the receiving host provides voice input and speech recognition functions. The remote controller comprises a first input unit and a second input unit for generating a voice input request and a speech recognition request. The generated voice input and speech recognition requests are then sent to the receiving host, thereby forcing the receiving host to perform the voice input and speech recognition functions.

Abstract: A stereo coding method includes transforming a stereo left channel signal and a stereo right channel signal in a time domain to a frequency domain to form a left channel signal and a right channel signal in the frequency domain; down-mixing the left channel signal and the right channel signal in the frequency domain to generate a monophonic down-mix signal, and transmitting bits obtained after quantization coding is performed on the down-mix signal; extracting spatial parameters of the left channel signal and the right channel signal in the frequency domain; estimating a group delay and a group phase between stereo left and right channels by using the left channel signal and the right channel signal in the frequency domain; and performing quantization coding on the group delay, the group phase and the spatial parameters, so as to obtain a high-quality stereo coding performance at a low bit rate.

Abstract: The present invention relates to an image display device, to an image display system, to a method for analyzing the emotional state of user, wherein information on a user response to a scene containing content is analyzed so as to provide a user with information on the emotional state of the user for the scene or to selectively provide information added for each scene of the content, thereby rendering an interactive service. According to one embodiment of the present invention, the method for analyzing the emotional state of a user comprises the steps of: outputting a scene comprising content having identification information; receiving information on a user response to the scene; determining the emotional state of the user for the scene on the basis of the information on the user response; and storing the determined emotional state in association with the identification information.

Abstract: Embodiments include processes, systems, and devices for reshaping virtual baseband signals for transmission on non-contiguous and variable portions of a physical baseband, such as a white space frequency band. In the transmission path, a spectrum virtualization layer maps a plurality of frequency components derived from a transmission symbol produced by a physical layer protocol to sub-carriers of the allocated physical frequency band. The spectrum virtualization layer then outputs a time-domain signal derived from the mapped frequency components. In the receive path, a time-domain signal received on the physical baseband is reshaped by the virtual spectrum layer in order to recompose a time-domain symbol in the virtual baseband.

Abstract: 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. A combiner merges the filtered portions into a single audio channel signal. Other embodiments are also described and claimed.

Abstract: In a CELP coder, a combined innovation codebook coding device comprises a pre-quantizer of a first, adaptive-codebook excitation residual, and a CELP innovation-codebook search module responsive to a second excitation residual produced from the first, adaptive-codebook excitation residual. In a CELP decoder, a combined innovation codebook comprises a de-quantizer of pre-quantized coding parameters into a first excitation contribution, and a CELP innovation-codebook structure responsive to CELP innovation-codebook parameters to produce a second excitation contribution.

Abstract: An apparatus for encoding an audio signal having a stream of audio samples has: a windower for applying a prediction coding analysis window to the stream of audio samples to obtain windowed data for a prediction analysis and for applying a transform coding analysis window to the stream of audio samples to obtain windowed data for a transform analysis, wherein the transform coding analysis window is associated with audio samples within a current frame of audio samples and with audio samples of a predefined portion of a future frame of audio samples being a transform-coding look-ahead portion, wherein the prediction coding analysis window is associated with at least the portion of the audio samples of the current frame and with audio samples of a predefined portion of the future frame being a prediction coding look-ahead portion, wherein the transform coding look-ahead portion and the prediction coding look-ahead portion are identically to each other or are different from each other by less than 20%; and an enc

Abstract: A method (700, 800) and apparatus (100, 200) processes audio frames to transition between different codecs. The method can include producing (720), using a first coding method, a first frame of coded output audio samples by coding a first audio frame in a sequence of frames. The method can include forming (730) an overlap-add portion of the first frame using the first coding method. The method can include generating (740) a combination first frame of coded audio samples based on combining the first frame of coded output audio samples with the overlap-add portion of the first frame. The method can include initializing (760) a state of a second coding method based on the combination first frame of coded audio samples. The method can include constructing (770) an output signal based on the initialized state of the second coding method.