News and Events

Carry out your sound project with the help of Sons de Barcelona

The aim of this call is to activate, to promote, and to support works related to the sound sphere of the city of Barcelona and it is addressed to everybody interested in make their projects known. Send your proposal before April 3th to sonsdebarcelona [at] freesound [dot] org

Read the rules.

The MTG started in 2008 the project Sons de Barcelona (Sounds of Barcelona) in order to offer to everybody a database of sounds of this city created in a collaborative way, with the contribution of the citizens themselves and integrated into the international project, also from MTG. The sounds are recordings of acoustic environments of Barcelona or different sounds generated in very different ways by the users, and published under Creative Commons License (so they can be freely re-used again). The Sounds of Barcelona team conducts workshops addressed to different collectives in order to propagate the use of audio technologies, to teach how to take advantage of all their possibilities, and to awake an interest towards working with sounds.

6 Mar 2009 - 16:54 | view
Participación en las V Jornadas Imaginática 2009

Emilia Gómez y Jordi Bonada dan una conferencia sobre "Aplicaciones Informáticas para la música: Sistemas de recomendación musical y procesado de voz cantada" en las V Jornadas Imaginática 2009 que tiene lugar en Sevilla del 2 al 6 de Marzo del 2009.

Resumen:  En ésta charla presentaremos una serie de tecnologías para el análisis y el procesado de sonido mediante herramientas informáticas. Nos centraremos el uso de de dichas tecnologías en tres contextos determinados: un sistema de análisis, búsqueda y recomendación de música (, una herramienta de análisis y evaluación de voz cantada ( skore) y un sistema de generación de canto a partir del modelado de una voz determinada (

3 Mar 2009 - 10:19 | view
Reactable Systems S.L. has been created
On February 25th 2009 Reactable Systems S.L., the second spin-off of the MTG, has been created. The co-founders are Sergi Jordà, Günter Geiger, Martin Kaltenbrunner, Marcos Alonso, Xavier Serra and the Universitat Pompeu Fabra. The main mission of Reactable Systems S.L. is to put the Reactable into the market.
25 Feb 2009 - 17:25 | view
Seminar by Volker Hohmann on signal processing for hearing aids

Volker Hohmann, from the University of Oldenburg, will give a seminar on "Model-based signal processing for hearing aids" on Thursday February 26 2009 at 3:15pm in room 52.321 of the Communication-Poblenou Campus.

Abstract: The aim of the work presented in this talk is to investigate potential applications of models of human auditory processing to signal processing in hearing aids. Firstly, implications of using nonlinear peripheral auditory models for the design of dynamic compression systems for hearing aids are discussed. In particular, results from a multi-band instantaneous compression scheme are presented, which is based on a novel nonlinear auditory filterbank controlled by the instantaneous frequency calculated in frequency sub-bands. Secondly, a general framework for computational auditory scene analysis (CASA) is introduced and applied to the problem of estimating spatial direction and spectral envelope of super-imposed sound sources from a binaural input signal.

24 Feb 2009 - 18:01 | view
Xavier Serra receives an ICREA Academia Price
Xavier Serra has received a price of the ICREA Academia program offered by the Generalitat de Catalunya. The price is 250.000€ to be used for research activities for the period 2009-2014.

The ICREA Academia program recognizes the research excellence and leadership with the goal to motivate and retain university faculty members from the catalan public universities. ICREA is an institution of the catalan government that has as a fundamental objective to hire researchers from around the world through a selection process based on scientific talent.


19 Feb 2009 - 10:10 | view
The MTG has moved !!!
Starting on Monday February 16th 2009 the MTG is in the new Communication-Poblenou Campus of the UPF. We are on the 3rd floor of the Tànger building.
13 Feb 2009 - 18:01 | view
Participation at the AES Audio for Games conference

Oscar Mayor participates at the AES 35th International Conference on Audio For Games that takes places in London from the 11th to the 13th of February 2009. Oscar is presenting one paper and one poster from work done at the MTG.

12 Feb 2009 - 19:01 | view
Seminar by Johan Sundberg on the singing voice

Johan Sundberg, from the Royal Institute of Technology of Sweden, will give a seminar on "The voice as a music instrument" on Thursday 12th of February at 15:00h in room 52.321 at the Roc Boronat building of the Comunication-Poblenou Campus.

Abstract: By varying the air pressure in the lungs, the length and tension of the vocal folds, the glottal adduction and the shape of the vocal tract the human voice can be continuously varied along three perceptual dimensions: loudness, pitch, and timbre. In this sense the human voice is more flexible than other music instruments. Contributions to timbral variation emanate from both the vibrating vocal folds and from the resonatory properties of the vocal tract. The presentation will review some investigations of how singers use these means for the purpose of vocal economy and musical expressivity. 

5 Feb 2009 - 16:37 | view
Oscar Celma defends his PhD thesis on February 16th

Oscar Celma defends his PhD thesis entitled "Music Recommendation and Discovery in the Long Tail" on Monday 16th of February at 11:00h in room 52.223 at the Roc Boronat building of the Communication-Poblenou Campus.

The members of the jury's defense are:  Ricardo Baeza-Yates (Yahoo! Research), Rafael Ramirez (UPF), Stephan Baumann (DFKI GMbH), Josep Lluis Arcos (IIIA-CSIC), Marc Torrens (Strands).

Thesis Abstract: Music consumption is biased towards a few popular artists. For instance, in 2007 only 1% of all digital tracks accounted for 80% of all sales. Similarly, 1,000 albums accounted for 50% of all album sales, and 80% of all albums sold were purchased less than 100 times. There is a need to assist people to filter, discover, personalise and recommend from the huge amount of music content available along the Long Tail.
Current music recommendation algorithms try to accurately predict what people demand to listen to. However, quite often these algorithms tend to recommend popular —or well–known to the user—music, decreasing the effectiveness of the recommendations. These approaches focus on improving the accuracy of the recommendations. That is, try to make accurate predictions about what a user could listen to, or buy next, independently of how useful to the user could be the provided recommendations.
In this Thesis we stress the importance of the user’s perceived quality of the recommendations. We model the Long Tail curve of artist popularity to predict —potentially— interesting and unknown music, hidden in the tail of the popularity curve. Effective recommendation systems should promote novel and relevant material (non–obvious recommendations), taken primarily from the tail of a popularity distribution.
The main contributions of this Thesis are: (i) a novel network–based approach for recommender systems, based on the analysis of the item (or user) similarity graph, and the popularity of the items, (ii) a user–centric evaluation that measures the user’s relevance and novelty of the recommendations, and (iii) two prototype systems that implement the ideas derived from the theoretical work. Our findings have significant implications for recommender systems that assist users to explore the Long Tail, digging for content they might like.

5 Feb 2009 - 13:21 | view
El MTG col·labora amb el Programa Joves i Ciència de l'Obra Social de Caixa Catalunya

El MTG coordina el projecte "Els Sons de la Natura" dins del  Programa Joves i Ciència que l'Obra Social de Caixa Catalunya organitza a Planes de Son a l'estiu del 2009. Emilia Gomez i Jordi Bonada seran els professors i coordinadors d'aquest projecte.

Els Sons de la Natura és un projecte que té com a objectiu explorar i entendre la natura a través dels seus sons, fent servir les tecnologies digitals relacionades amb el so i la música. Aquest projecte està relacionat, i utilitzarà, la web; infraestructura d'abast internacional desenvolupada per el MTG per a experimentar amb sons i els seus usos de recerca i artístics.

El Programa Joves i Ciència està dirigit a joves que finalitzen 4t d'ESO i és realitza cada estiu a Planes de Son durant dues setmanes del mes de Juliol. 

4 Feb 2009 - 13:06 | view