Yamaha Corporation

Sugarmusic S.p.a.

Oscar Mayor

Jordi Bonada

Takuya Fujishima

Alex Loscos

Jordi Janer

Filippo Sugar

Roberto Vernetti

A method for processing a voice signal by an electronic system to create a song is disclosed. The method comprises the steps in the electronic system of acquiring an input singing voice recording (); estimating a musical key () and a Tempo () from the singing voice recording (); defining a tuning control () and a timing control () able to align the singing voice recording () with the estimated musical key () and Tempo (); applying the tuning control () and the timing control () to the singing voice recording () so that an aligned voice recording () is obtained. Next, the method comprises the step of generating an music accompaniment () as function of the estimated musical key () and Tempo () and an arrangement database () and mixing the aligned voice recording () and the music accompaniment () to obtain the song (). A system a server and a device are also disclosed.

Auto-generated accompaniment from singing a melody

A sound signal processing apparatus which is capable of correctly detecting expression modes and expression transitions of a song or performance from an input sound signal. A sound signal produced by performance or singing of musical tones is input and divided into frames of predetermined time periods. Characteristic parameters of the input sound signal are detected on a frame-by-frame basis. An expression determining process is carried out in which a plurality of expression modes of a performance or song are modeled as respective states, the probability that a section including a frame or a plurality of continuous frames lies in a specific state is calculated with respect to a predetermined observed section based on the characteristic parameters, and the optimum route of state transition in the predetermined observed section is determined based on the calculated probabilities so as to determine expression modes of the sound signal and lengths thereof.

Sound signal expression mode determining apparatus method and program

Growing community of inventors

Barcelona, Spain

Oscar Mayor