Distinguishing Monophonies From Polyphonies Using Weibull Bivariate Distributions

Lachambre, Hélène; André-Obrecht, Régine; Pinquier, Julien

doi:10.1109/tasl.2010.2089517

Cited by 6 publications

(11 citation statements)

References 9 publications

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“…As indicated in Table 3, classification results are near perfect, ensuring robust mode identification during performance. In addition, we have developed an audio-based approach that uses the Yin pitch-detection algorithm [11]. Yin is used to extract the pitch and confidence indicator (CI) on a window of 50ms.…”

Section: Chord-dur-ratiomentioning

confidence: 99%

Reflexive loopers for solo musical improvisation

Pachet¹,

Roy²,

Moreira³

et al. 2013

Proceedings of the SIGCHI Conference on Human Factors in Computing Systems

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Loop pedals are real-time samplers that playback audio played previously by a musician. Such pedals are routinely used for music practice or outdoor "busking". However, loop pedals always playback the same material, which can make performances monotonous and boring both to the musician and the audience, preventing their widespread uptake in professional concerts. In response, we propose a new approach to loop pedals that addresses this issue, which is based on an analytical multi-modal representation of the audio input. Instead of simply playing back prerecorded audio, our system enables real-time generation of an audio accompaniment reacting to what is currently being performed by the musician. By combining different modes of performance -e.g. bass line, chords, solo -from the musician and system automatically, solo musicians can perform duets or trios with themselves, without engendering the so-called canned (boringly repetitive and unresponsive) music effect of loop pedals. We describe the technology, based on supervised classification and concatenative synthesis, and then illustrate our approach on solo performances of jazz standards by guitar. We claim this approach opens up new avenues for concert performance.

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Section: Chord-dur-ratiomentioning

confidence: 99%

Reflexive loopers for solo musical improvisation

Pachet¹,

Roy²,

Moreira³

et al. 2013

Proceedings of the SIGCHI Conference on Human Factors in Computing Systems

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show abstract

“…The popularity of the histogram in many areas of engineering, such as image processing [7][8]16], medical imaging [17][18][19][20], remote sensing [21], audio processing [22] and ADC testing [23], lies in the fact that it provides a visual approximation of almost any density shape f(x) without extensive statistical analysis [4].…”

Section: Histogram the Classical Density Estimatormentioning

confidence: 99%

A qualitative study of probability density visualization techniques in measurements

et al. 2015

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“…Using the work of Lachambre [3], we perform an estimation on whether the whole music segments are monophonic or polyphonic. This step can be considered as a conjoint information more than a real pre-requite for the multiple source localisation as it can be refined by the latter methods.…”

Section: Monophonic-polyphonicmentioning

confidence: 99%

Audio indexing including frequency tracking of simultaneous multiple sources in speech and music

Coz

Pinquier

André-Obrecht

et al. 2013

2013 11th International Workshop on Content-Based Multimedia Indexing (CBMI)

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. ABSTRACTIn this paper, we present a complete system for audio indexing. This system is based state-of-the-art methods of SpeechMusic-Noise segmentation and Monophonic/Polyphonic estimation. After those methods we propose an original system of superposed sources detection. This approach is based on the analysis of the evolution of the predominant frequencies.In order to validate the whole system we used different corpora : Radio broadcasts, studio music and degraded field records. The first results are encouraging and show the potential of our approach which is generic and can be used on both music and speech contents.

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Distinguishing Monophonies From Polyphonies Using Weibull Bivariate Distributions

Cited by 6 publications

References 9 publications

Reflexive loopers for solo musical improvisation

Reflexive loopers for solo musical improvisation

A qualitative study of probability density visualization techniques in measurements

Audio indexing including frequency tracking of simultaneous multiple sources in speech and music

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