Results 1 - 10 of 5,298

An N-gram model for unstructured audio signals toward information retrieval

by Samuel Kim, Shiva Sundaramy, Panayiotis Georgiou, Shrikanth Narayanan - Multimedia Signal Processing (MMSP), 2010 IEEE International Workshop on , 2010
"... Abstract—An N-gram modeling approach for unstructured audio signals is introduced with applications to audio information retrieval. The proposed N-gram approach aims to capture local dynamic information in acoustic words within the acoustic topic model framework which assumes an audio signal consist ..."
Abstract - Cited by 2 (0 self) - Add to MetaCart
Abstract—An N-gram modeling approach for unstructured audio signals is introduced with applications to audio information retrieval. The proposed N-gram approach aims to capture local dynamic information in acoustic words within the acoustic topic model framework which assumes an audio signal

Automatic Musical Genre Classification Of Audio Signals

by George Tzanetakis, Georg Essl, Perry Cook - IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING , 2002
"... ... describe music. They are commonly used to structure the increasing amounts of music available in digital form on the Web and are important for music information retrieval. Genre categorization for audio has traditionally been performed manually. A particular musical genre is characterized by sta ..."
Abstract - Cited by 829 (35 self) - Add to MetaCart
by statistical properties related to the instrumentation, rhythmic structure and form of its members. In this work, algorithms for the automatic genre categorization of audio signals are described. More specifically, we propose a set of features for representing texture and instrumentation. In addition a novel

Quantization Index Modulation: A Class of Provably Good Methods for Digital Watermarking and Information Embedding

by Brian Chen, Gregory W. Wornell - IEEE TRANS. ON INFORMATION THEORY , 1999
"... We consider the problem of embedding one signal (e.g., a digital watermark), within another "host" signal to form a third, "composite" signal. The embedding is designed to achieve efficient tradeoffs among the three conflicting goals of maximizing information-embedding rate, mini ..."
Abstract - Cited by 496 (14 self) - Add to MetaCart
We consider the problem of embedding one signal (e.g., a digital watermark), within another "host" signal to form a third, "composite" signal. The embedding is designed to achieve efficient tradeoffs among the three conflicting goals of maximizing information-embedding rate

Secure spread spectrum watermarking for multimedia

by Ingemar J. Cox, Joe Kilian, F. Thomson Leighton, Talal Shamoon - IEEE TRANSACTIONS ON IMAGE PROCESSING , 1997
"... This paper presents a secure (tamper-resistant) algorithm for watermarking images, and a methodology for digital watermarking that may be generalized to audio, video, and multimedia data. We advocate that a watermark should be constructed as an independent and identically distributed (i.i.d.) Gauss ..."
Abstract - Cited by 1100 (10 self) - Add to MetaCart
This paper presents a secure (tamper-resistant) algorithm for watermarking images, and a methodology for digital watermarking that may be generalized to audio, video, and multimedia data. We advocate that a watermark should be constructed as an independent and identically distributed (i

Construction And Evaluation Of A Robust Multifeature Speech/music Discriminator

by Eric Scheirer, Malcolm Slaney , 1997
"... We report on the construction of a real-time computer system capable of distinguishing speech signals from music signals over a wide range of digital audio input. We have examined 13 features intended to measure conceptually distinct properties of speech and/or music signals, and combined them in se ..."
Abstract - Cited by 354 (5 self) - Add to MetaCart
We report on the construction of a real-time computer system capable of distinguishing speech signals from music signals over a wide range of digital audio input. We have examined 13 features intended to measure conceptually distinct properties of speech and/or music signals, and combined them

Voice puppetry

by Matthew Brand , 1999
"... Frames from a voice-driven animation, computed from a single baby picture and an adult model of facial control. Note the changes in upper facial expression. See figures 5, 6 and 7 for more examples of predicted mouth shapes. We introduce a method for predicting a control signal from another related ..."
Abstract - Cited by 298 (0 self) - Add to MetaCart
signal, and apply it to voice puppetry: Generating full facial animation from expressive information in an audio track. The voice puppet learns a facial control model from computer vision of real facial behavior, automatically incorporating vocal and facial dynamics such as co-articulation. Animation

Transform coding of audio signal using perceptual noise criteria

by James D. Johnston - IEEE Journal on Selected Areas in Communications , 1988
"... Abstract-A 4 bit/sample transform coder is designed using a psychoacoustically derived noise masking threshold based on the shortterm input spectrum of the signal. The coder has been tested in a formal subjective test involving a wide selection of monophonic audio inputs. The signals used in the tes ..."
Abstract - Cited by 191 (1 self) - Add to MetaCart
Abstract-A 4 bit/sample transform coder is designed using a psychoacoustically derived noise masking threshold based on the shortterm input spectrum of the signal. The coder has been tested in a formal subjective test involving a wide selection of monophonic audio inputs. The signals used

Digital Watermarks for Audio Signals

by Laurence Boney, Ahmed H. Tewfik, Khaled N. Hamdy - International Conference on Multimedia Computing and Systems , 1996
"... In this paper, we present a novel technique for embedding digital "watermarks" into digital audio signals. Watermarking is a technique used to label digital media by hiding copyright or other information into the underlying data. The watermark must be imperceptible and should be robust to ..."
Abstract - Cited by 119 (2 self) - Add to MetaCart
In this paper, we present a novel technique for embedding digital "watermarks" into digital audio signals. Watermarking is a technique used to label digital media by hiding copyright or other information into the underlying data. The watermark must be imperceptible and should be robust

Perceptual Coding of Digital Audio

by Ted Painter, Andreas Spanias - Proceedings of the IEEE , 2000
"... During the last decade, CD-quality digital audio has essentially replaced analog audio. Emerging digital audio applications for network, wireless, and multimedia computing systems face a series of constraints such as reduced channel bandwidth, limited storage capacity, and low cost. These new applic ..."
Abstract - Cited by 158 (3 self) - Add to MetaCart
become of central importance in perceptual audio coding. Then, we review methodologies that achieve perceptually transparent coding of FM- and CD-quality audio signals, including algorithms that manipulate transform components, subband signal decompositions, sinusoidal signal components, and linear

AUDIO AUDIO INDEXING

by Gaël Richard, Gaël Richard
"... The enormous amount of unstructured audio data available nowadays and the spread of its use as a data source in many applications are introducing new challenges to researchers in information and signal processing. The continuously growing size of digital audio information increases the difficulty of ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
The enormous amount of unstructured audio data available nowadays and the spread of its use as a data source in many applications are introducing new challenges to researchers in information and signal processing. The continuously growing size of digital audio information increases the difficulty
Results 1 - 10 of 5,298