the musical symbol is one way of expression among many other ways. it doesn`t directly correspond with meaning or reality. rather, it provides images that are representative of the original. however, symbols goes beyond this and provide deep significant symbolic meanings and visions. mystical poetry has a complex intellectual structure, particularly in arabic and persian literature. hence, musi...

We present Andante, a representation of music as animated characters walking along the piano keyboard that appear to play the physical keys with each step. Based on a view of music pedagogy that emphasizes expressive, full-body communication early in the learning process, Andante promotes an understanding of music rooted in the body, taking advantage of walking as one of the most fundamental hu...

Sound produced by Musical instruments with definite pitch consists of the Harmonic Series and the nonharmonic Residual. It is common to treat the Harmonic Series as the main characteristic of the timbre of pitched musical instruments. But does the Harmonic Series indeed contain the complete information required for discriminating among different musical instruments? Could the non-harmonic Resid...

We propose a new method of speech enhancement based on auto gain control using two channel inputs. Auto gain control is considered to be less effective for reducing noise superimposed on speech, however, it has advantages on the problems of musical noise and spectral distortion of the speech. In this method, two operations are combined for obtaining accurate gain, of which, one is spectral subt...

This paper presents a spectral subtraction using the classifications between the speech dominant and the noise one. In our system, a new classification scheme between the speech dominant and the noise one is proposed. The proposed classifications use the standard deviation of the spectrum of observation signal in each critical band. We have introduced two oversubtraction factors for speech domi...

During the past three years IRCAM has developed the IRCAM Musical Workstation (IMW). Recently we have begun work on musical tools and the realization of music with the system. Miller Puckette has written a version of MAX for the IMW which includes signal processing objects, as well as the standard objects found in the Macintosh version of MAX (including MIDI objects). The MAX environment for th...

We propose a new method for separating sparse signals from their mixtures. Separation is achieved by clustering the normalized observation vectors and extracting each cluster as each separated signal. We show the practical result of speech separation with non-linear sensor arrangements in both a determined and an underdetermined scenarios. We also consider the musical noise problem and show the...

Many musical instruments’ sounds can be represented by harmonic and additive noise signals. We are interested in separating these two elements of the sound. We fit a local harmonic model that tracks changes in pitch and of the amplitude of the harmonics. Deterministic changes in the signal suggest that different window sizes should be considered. Various ways to choose appropriate window sizes ...

1 The interdisciplinary information needed to compose a coherent picture of climate change, its precursors and impacts could not be assembled from existing knowledge. To use a musical analogy, the instruments of the orchestra where neither in the same key nor being played to the same beat. Consequently, the climate change symphony was nothing more than chaotic noise.