Publications & Patents

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Apparatus and a method for unwrapping phase differences
An apparatus configured to obtain a plurality of phase differences is provided. Each phase difference represents a difference in phase …
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Method and apparatus for acoustic scene playback
A method for acoustic scene playback is described, which comprises: providing recording data comprising microphone signals of …
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Apparatus and method for weighting stereo audio signals
A signal generator has a filter bank that provides weighted versions of audio signals to speakers. The weights were derived by …
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Sound signal processing apparatus and method for enhancing a sound signal
A sound signal processing apparatus including a plurality of microphones, where each microphone is configured to receive the sound …
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Device and method for estimating direction of arrival
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Audio signal processing apparatus and method for processing an input audio signal
Example audio signal processing apparatuses and methods for processing an input audio signal into an output audio signal are disclosed. …
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Audio signal processing apparatus and method
An audio signal processing apparatus, comprising a memory configured to store a set of pairs of predefined left ear and right ear …
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Audio signal processing stage, audio signal processing apparatus, audio signal processing method, and computer-readable storage medium
An input audio signal is separated into input audio signal components (X(k,b)). A set of two or more band branches provides output …
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Audio signal processing apparatus for processing an input earpiece audio signal upon the basis of a microphone audio signal
The invention relates to an audio signal processing apparatus for processing an input earpiece audio signal upon the basis of a …
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Signal processing apparatus for enhancing a voice component within a multi-channel audio signal
A signal processing apparatus for enhancing a voice component within a multi-channel audio signal comprising a left channel audio …
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Adaptive reverberation cancellation system
A signal processor for determining a plurality of drive signals for driving a plurality of loudspeakers to cancel a reverberation …
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The HUTUBS head-related transfer function (HRTF) database
The database contains head-related transfer functions, 3D head meshes, anthropometric features, and headphone transfer functions of 96 …
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The HUTUBS head-related transfer function (HRTF) database
Apparatus and a method for manipulating an input audio signal
The disclosure relates to an apparatus for manipulating an input audio signal associated to a spatial audio source within a spatial …
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A cross-evaluated database of measured and simulated HRTFs including 3D head meshes, anthropometric features, and headphone impulse responses
The individualization of head related transfer functions (HRTFs) can make an important contribution to improving the quality of …
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A cross-evaluated database of measured and simulated HRTFs including 3D head meshes, anthropometric features, and headphone impulse responses
Digital compressor for compressing an audio signal
A digital compressor for compressing an input audio signal is presented. The digital compressor comprises a compression gain control …
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Audio signal processing apparatus
The disclosure is based on the finding that acoustic near-field transfer functions indicating acoustic near-field propagation channels …
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Method and mobile device for processing an audio signal
A method for processing an audio signal includes: decomposing an audio signal comprising spatial information into a set of audio signal …
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Apparatus and method for estimating an overall mixing time based on at least a first pair of room impulse responses, as well as corresponding computer program
An apparatus for estimating an overall mixing time, where the apparatus comprises a processing element configured to determine …
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Time-Frequency Masking Strategies for Single-Channel Low-Latency Speech Enhancement Using Neural Networks
This paper presents a low-latency neural network based speech enhancement system. Low-latency operation is critical for speech …
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Time-Frequency Masking Strategies for Single-Channel Low-Latency Speech Enhancement Using Neural Networks
Perceptually motivated analysis of numerically simulated head-related transfer functions generated by various 3D surface scanning systems
Numerical simulations offer a feasible alternative to the direct acoustic measurement of individual head-related transfer functions …
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Perceptually motivated analysis of numerically simulated head-related transfer functions generated by various 3D surface scanning systems
Content-based Methods for Knowledge Discovery in Music
This chapter presents several computational approaches aimed at supporting knowledge discovery in music. Our work combines data mining, …
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Content-based Methods for Knowledge Discovery in Music
Apparatus and method for enhancing a spatial perception of an audio signal
An apparatus and a method for enhancing a spatial perception of an audio signal are provided creating increased interaural-level …
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Audio signal processing device and method for reproducing a binaural signal
An audio signal processing device for generating a plurality of output signals for a plurality of loudspeakers from an input audio …
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Audio Compression System for Compressing an Audio Signal
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System and method for evaluating an acoustic transfer function
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Apparatus and method for improving a perception of a sound signal
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Apparatus and Method for Compressing a Set of N Binaural Room Impulse Responses
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Extraction of anthropometric measures from 3d-meshes for the individualization of head-related transfer functions
Anthropometric measures are used for individualizing head-related transfer functions (HRTFs) for example, by selecting best match HRTFs …
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Extraction of anthropometric measures from 3d-meshes for the individualization of head-related transfer functions
Audio signal processing apparatus
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Automatic Mixing for Immersive Teleconferencing Systems
The aim of immersive teleconferencing is to convey a realistic sound field impression to a remote participant. To this end, the spatial …
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Automatic Mixing for Immersive Teleconferencing Systems
DIALOGUE ENHANCEMENT OF STEREO SOUND
Studies show that many people have difficulties in understanding dialogue in movies when watching TV, especially hard-of-hearing …
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DIALOGUE ENHANCEMENT OF STEREO SOUND
Unsupervised Music Structure Annotation by Time Series Structure Features and Segment Similarity
Automatically inferring the structural properties of raw multimedia documents is essential in today’s digitized society. Given its …
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Unsupervised Music Structure Annotation by Time Series Structure Features and Segment Similarity
On-line NMF-based Stereo Up-Mixing of Speech Improves Perceived Reduction of Non-Stationary Noise
Speech de-noising algorithms often suffer from introduction of artifacts, either by removal of parts of the speech signal, or imperfect …
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On-line NMF-based Stereo Up-Mixing of Speech Improves Perceived Reduction of Non-Stationary Noise
D7. 1: BRIDGET Authoring Tools and Player
Connected and Social media BRIDGET is opening new dimensions for multimedia content creation and consumption by enhancing broadcast …
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D7. 1: BRIDGET Authoring Tools and Player
Towards cover group thumbnailing
In this paper we investigate whether we can extract the commonalities shared by a group of cover songs or versions of the same musical …
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Towards cover group thumbnailing
Signal processing methods for beat tracking, music segmentation, and audio retrieval
The goal of music information retrieval (MIR) is to develop novel strategies and techniques for organizing, exploring, accessing, and …
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Signal processing methods for beat tracking, music segmentation, and audio retrieval
Unsupervised detection of music boundaries by time series structure features
Locating boundaries between coherent and/or repetitive segments of a time series is a challenging problem pervading many scientific …
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Unsupervised detection of music boundaries by time series structure features
Toward Musically-Motivated Audio Fingerprints
In this paper, we investigate to which extent well-known audio fingerprinting techniques, which aim at identifying a specific audio …
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Toward Musically-Motivated Audio Fingerprints
Toward characteristic audio shingles for efficient cross-version music retrieval
The general goal of cross-version music retrieval is to identify all versions of a given piece of music by means of a short query audio …
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Toward characteristic audio shingles for efficient cross-version music retrieval
Structure-Based Audio Fingerprinting for Music Retrieval
Content-based approaches to music retrieval are of great relevance as they do not require any kind of manually generated annotations. …
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Structure-Based Audio Fingerprinting for Music Retrieval
Automatic transcription of recorded music
The automatic transcription of music recordings with the objective to derive a score-like representation from a given audio …
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Automatic transcription of recorded music
Automated segmentation of folk song field recordings
In this paper, we introduce an automated procedure for segmenting a given folk song field recording into its constituent stanzas. One …
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Automated segmentation of folk song field recordings
Audio Content-Based Music Retrieval
The rapidly growing corpus of digital audio material requires novel retrieval strategies for ex-ploring large music collections. …
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Audio Content-Based Music Retrieval
A robust fitness measure for capturing repetitions in music recordings with applications to audio thumbnailing
The automatic extraction of structural information from music recordings constitutes a central research topic. In this paper, we deal …
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A robust fitness measure for capturing repetitions in music recordings with applications to audio thumbnailing
Tempogram toolbox: Matlab implementations for tempo and pulse analysis of music recordings
The extraction of local tempo and pulse information from audio recordings constitutes a challenging task, in particular for music with …
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Tempogram toolbox: Matlab implementations for tempo and pulse analysis of music recordings
Extracting predominant local pulse information from music recordings
The extraction of tempo and beat information from music recordings constitutes a challenging task in particular for non-percussive …
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Extracting predominant local pulse information from music recordings
Analyzing Chroma Feature Types for Automated Chord Recognition
The computer-based harmonic analysis of music recordings with the goal to automatically extract chord labels directly from the given …
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Analyzing Chroma Feature Types for Automated Chord Recognition
A Segment-based Fitness Measure for Capturing Repetitive Structures of Music Recordings
In this paper, we deal with the task of determining the audio segment that best represents a given music recording (similar to audio …
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A Segment-based Fitness Measure for Capturing Repetitive Structures of Music Recordings
A Re-ordering Strategy for Accelerating Index-based Audio Fingerprinting
The Haitsma/Kalker audio fingerprinting system has been in use for years, but its search algorithm’s scalability has not been …
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A Re-ordering Strategy for Accelerating Index-based Audio Fingerprinting
What makes beat tracking difficult? A case study on Chopin Mazurkas
The automated extraction of tempo and beat information from music recordings is a challenging task. Especially in the case of …
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What makes beat tracking difficult? A case study on Chopin Mazurkas
Tempobasierte Segmentierung von Audioaufnahmen
Die automatische Segmentierung und Strukturierung ist für die automatisierte Verarbeitung von Musikaufnahmen von grundlegender …
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Tempobasierte Segmentierung von Audioaufnahmen
Cyclic Tempogram -- A Mid-level Tempo Representation For Music Signals
The extraction of local tempo and beat information from audio recordings constitutes a challenging task, particularly for music that …
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Cyclic Tempogram -- A Mid-level Tempo Representation For Music Signals
Automated analysis of performance variations in folk song recordings
Performance analysis of recorded music material has become increasingly important in musicological research and music psychology. In …
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Automated analysis of performance variations in folk song recordings
A Novel Timeline Adjustment Functionality for the Interpretation Switcher
In this demo we present novel functionalities for a user interface referred to as Interpretation Switcher, which has emerged from the …
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A Novel Timeline Adjustment Functionality for the Interpretation Switcher
Towards automated processing of folk song recordings
Folk music is closely related to the musical culture of a specific nation or region. Even though folk songs have been passed down …
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Towards automated processing of folk song recordings
Robust Segmentation and Annotation of Folk Song Recordings
Even though folk songs have been passed down mainly by oral tradition, most musicologists study the relation between folk songs on the …
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Robust Segmentation and Annotation of Folk Song Recordings
High resolution audio synchronization using chroma onset features
The general goal of music synchronization is to automatically align the multiple information sources such as audio recordings, MIDI …
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High resolution audio synchronization using chroma onset features
Computing predominant local periodicity information in music recordings
The periodic structure of musical events plays a crucial role in the perception of tempo as well as the sensation of note changes and …
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Computing predominant local periodicity information in music recordings
Combination of Onset-Features with Applications to High-Resolution Music Synchronization
Many different methods for the detection of note onsets in music recordings have been proposed and applied to tasks such as music …
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Combination of Onset-Features with Applications to High-Resolution Music Synchronization
A mid-level representation for capturing dominant tempo and pulse information in music recordings
Automated beat tracking and tempo estimation from music recordings become challenging tasks in the case of non-percussive music with …
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A mid-level representation for capturing dominant tempo and pulse information in music recordings
Polyphonic Music Transcription based on Real Audio
Automatic music transcription is a challenging task that has been the topic of many research groups since 1977. The problem has been …
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Polyphonic Music Transcription based on Real Audio
Entwicklung einer Applikation zur automatischen Strukturierung und Analyse grosser Musikdatenbanken
Diese Arbeit beschäftigt sich mit der Organisation und Strukturierung von Musikdatenbanken. Der Schwerpunkt der entwickelten Methoden …
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Entwicklung einer Applikation zur automatischen Strukturierung und Analyse grosser Musikdatenbanken