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9026435 Method for estimating a fundamental frequency of a speech signal  
The invention provides a method for estimating a fundamental frequency of a speech signal comprising the steps of receiving a signal spectrum of the speech signal, filtering the signal spectrum to...
9026434 Frame erasure concealment for a multi rate speech and audio codec  
An audio coding terminal and method is provided. The terminal includes a coding mode setting unit to set an operation mode, from plural operation modes, for input audio coding by a codec...
9015039 Adaptive encoding pitch lag for voiced speech  
System and method embodiments for dual modes pitch coding are provided. The system and method embodiments are configured to adaptively code pitch lags of a voiced speech signal using one of two...
9002703 Community audio narration generation  
The community-based generation of audio narrations for a text-based work leverages collaboration of a community of people to provide human-voiced audio readings. During the community-based...
8996364 Computational techniques for continuous pitch correction and harmony generation  
Using signal processing techniques described herein, pitch detection and correction of a user's vocal performance can be performed continuously and in real-time with respect to the audible...
8990094 Coding and decoding a transient frame  
An electronic device for coding a transient frame is described. The electronic device includes a processor and executable instructions stored in memory that is in electronic communication with the...
8983829 Coordinating and mixing vocals captured from geographically distributed performers  
Despite many practical limitations imposed by mobile device platforms and application execution environments, vocal musical performances may be captured and continuously pitch-corrected for mixing...
8965773 Coding with noise shaping in a hierarchical coder  
A method is provided for hierarchical coding of a digital audio signal comprising, for a current frame of the input signal: a core coding, delivering a scalar quantization index for each sample of...
8954320 System and method for noise reduction in processing speech signals by targeting speech and disregarding noise  
An exemplary noise reduction system and method processes a speech signal that is delivered in a noisy channel or with ambient noise. Some exemplary embodiments of the system and method use filters...
8949116 Signal processing method and apparatus for amplifying speech signals  
A signal processing method is provided. The signal processing method includes extracting a first signal having a first frequency band from a sum signal of a left signal and a right signal,...
8949118 System and method for robust estimation and tracking the fundamental frequency of pseudo periodic signals in the presence of noise  
Method and system for tracking fundamental frequencies of pseudo-periodic signals in the presence of noise that include receiving a time-frequency representation of signals measured in a...
8930182 Voice transformation with encoded information  
Method, system, and computer program product for voice transformation are provided. The method includes transforming a source speech using transformation parameters, and encoding information on...
8924204 Method and apparatus for wind noise detection and suppression using multiple microphones  
Unlike sound based pressure waves that go everywhere, air turbulence caused by wind is usually a fairly local event. Therefore, in a system that utilizes two or more spatially separated...
8924200 Audio signal bandwidth extension in CELP-based speech coder  
A method for decoding an audio signal in a decoder having a CELP-based decoder element including a fixed codebook component, at least one pitch period value, and a first decoder output, wherein a...
8924222 Systems, methods, apparatus, and computer-readable media for coding of harmonic signals  
A scheme for coding a set of transform coefficients that represent an audio-frequency range of a signal uses a harmonic model to parameterize a relationship between the locations of regions of...
8918324 Method for decoding an audio signal based on coding mode and context flag  
A method for coding and decoding an audio signal or speech signal and an apparatus adopting the method are provided.
8918197 Audio communication networks  
As the possible variations of “Hearing Thresholds”, “Hearing Loudness bandwidths” and “Voice Intonation” characteristics of people are finite, it is proposed to set a Database of these...
8907821 Apparatus and method for decoding data  
A computer-implemented method and apparatus are disclosed for decoding an encoded data signal. In one embodiment, the method includes accessing, in a memory, a set of signal elements. The encoded...
8892565 Method and apparatus for accessing an audio file from a collection of audio files using tonal matching  
There is provided a method for accessing at least one audio file from a collection comprising more than one audio file stored within or accessible with an electronic device. The method includes...
8892232 Social network with enhanced audio communications for the hearing impaired  
The invention describes the proprietary activities, services and devices provided to a networked community of Hearing impaired people, that help improve wired, wireless and direct voice...
8886539 Prosody generation using syllable-centered polynomial representation of pitch contours  
The present invention discloses a parametrical representation of prosody based on polynomial expansion coefficients of the pitch contour near the center of each syllable. The said syllable pitch...
8879762 Method and apparatus to evaluate quality of audio signal  
A method and apparatus to evaluate a quality of an audio signal, in which the number of effective channels is determined for each of a reference signal of a current frame and a test signal...
8868432 Audio signal bandwidth extension in CELP-based speech coder  
A method for decoding an audio signal having a bandwidth that extends beyond a bandwidth of a CELP excitation signal in an audio decoder including a CELP-based decoder element. The method includes...
8868411 Pitch-correction of vocal performance in accord with score-coded harmonies  
Despite many practical limitations imposed by mobile device platforms and application execution environments, vocal musical performances may be captured and continuously pitch-corrected for mixing...
8862465 Determining pitch cycle energy and scaling an excitation signal  
An electronic device for determining a set of pitch cycle energy parameters is described. The electronic device includes a processor and executable instructions stored in memory. The electronic...
8843366 Framing method and apparatus  
A framing method and apparatus are disclosed to overcome inconsistency of gains between sub-frames caused by simple average framing in the prior art. The method includes: obtaining the Linear...
8837748 Method and apparatus for receiving and playing a signal in a radio receiver  
A method and apparatus for receiving and playing a signal in a radio receiver to suppress microphonic feedback are provided by alternately pitch shifting a received audio signal. The pitch of the...
8838441 Time warped modified transform coding of audio signals  
A representation of an audio signal having a first, a second and a third frame is derived by estimating first warp information for the first and second frames and second warp information for the...
8831932 Scalable audio in a multi-point environment  
Use of a scalable audio codec to implement distributed mixing and/or sender bit rate regulation in a multipoint conference is disclosed. The scalable audio codec allows the audio signal from each...
8831942 System and method for pitch based gender identification with suspicious speaker detection  
A method is provided for identifying a gender of a speaker. The method steps include obtaining speech data of the speaker, extracting vowel-like speech frames from the speech data, analyzing the...
8818806 Speech processing apparatus and speech processing method  
A signal portion is extracted per frame having a specific duration from an input signal, thus generating a per-frame input signal. The per-frame input signal in the time domain is converted into a...
8812306 Speech decoding and encoding apparatus for lost frame concealment using predetermined number of waveform samples peripheral to the lost frame  
An audio decoding device capable of suppressing an information amount for a lost flame compensation process and encoding efficiency is provided. A decoded sound source generator generates a lost...
8805694 Method and apparatus for encoding and decoding audio signal using adaptive sinusoidal coding  
A method and an apparatus for encoding and decoding audio signals using adaptive sinusoidal coding are provided. The audio signal encoding method includes the steps of dividing a synthesized audio...
8805680 Method and apparatus for encoding and decoding audio signal using layered sinusoidal pulse coding  
Provided are a method and an apparatus for encoding and decoding an audio signal. A method for encoding an audio signal includes receiving a transformed audio signal, dividing the transformed...
8798992 Audio noise modification for event broadcasting  
An signal processing apparatus, system and software product for audio modification/substitution of a background noise generated during an event including, but not be limited to, substituting or...
8788264 Audio encoding method, audio decoding method, audio encoding device, audio decoding device, program, and audio encoding/decoding system  
An audio encoding device (1A) corrects initial gain information calculated for an arbitrary frame, based on gain information of a stored past frame, thereby calculating gain information to be used...
8781819 Periodic signal processing method, periodic signal conversion method, periodic signal processing device, and periodic signal analysis method  
The invention relates to a periodic signal processing method, a periodic signal conversion method, and a periodic signal processing device capable of reducing the influence of periodicity without...
8768690 Coding scheme selection for low-bit-rate applications  
Systems, methods, and apparatus for low-bit-rate coding of transitional speech frames are disclosed.
8762139 Noise suppression device  
A noise suppression device includes: a power spectrum calculator converting an input signal of time domain into power spectra of frequency domain; a voice/noise determination unit determining...
8762158 Decoding method and decoding apparatus therefor  
A method and apparatus for generating synthesis audio signals are provided. The method includes decoding a bitstream; splitting the decoded bitstream into n sub-band signals; generating n...
8756061 Speech syllable/vowel/phone boundary detection using auditory attention cues  
In syllable or vowel or phone boundary detection during speech, an auditory spectrum may be determined for an input window of sound and one or more multi-scale features may be extracted from the...
8751220 Multiple microphone based low complexity pitch detector  
Various embodiments of multiple microphone based pitch detection are provided. In one embodiment, a method includes obtaining a primary signal and a secondary signal associated with multiple...
8744842 Method and apparatus for detecting voice activity by using signal and noise power prediction values  
A robust method and apparatus to detect voice activity based on the power level of an audio frame. The method may include performing primary active/non-active voice period determination of an...
8738370 Speech analyzer detecting pitch frequency, speech analyzing method, and speech analyzing program  
A speech analyzer includes a speech acquiring section, a frequency converting section, an autocorrelation section, and a pitch detection section. The frequency converting section converts the...
8731917 Methods and arrangements in a telecommunications network  
The present invention relates to a postfilter and a postfilter control to be associated with a postfilter for improving perceived quality of speech reconstructed at a speech decoder. The...
8731913 Scaled window overlap add for mixed signals  
A method for overlap-adding signals useful for performing frame loss concealment (FLC) in an audio decoder as well as in other applications. The method uses a dynamic mix of windows to overlap two...
8731908 Method and apparatus for performing packet loss or frame erasure concealment  
The invention concerns a method and apparatus for performing packet loss or Frame Erasure Concealment (FEC) for a speech coder that does not have a built-in or standard FEC process. A receiver...
8731923 System and method for merging audio data streams for use in speech recognition applications  
A system and method for merging audio data streams receive audio data streams from separate inputs, independently transform each data stream from the time to the frequency domain, and generate...
8725498 Mobile speech recognition with explicit tone features  
A computer-implemented method for digital speech processing, including (1) receiving, at a server computer, digital speech data from a computing device, the digital speech data comprising data...
8719019 Speaker identification  
Speaker identification techniques are described. In one or more implementations, sample data is received at a computing device of one or more user utterances captured using a microphone. The...