Latin American Electroacoustic Music Collection

Ricardo Dal Farra, ... due giorni dopo, 1988
(Argentina)



Recording time: 3 min 10 s.
Instruments: 4 computer resynthesized voices
Recorded at: Centro di Sonologia Computazionale (CSC), University of Padua, Italy.
Remarks: 2 tracks (remixed version from the original 4 tracks tape).

Other resources available:
- Biography of Ricardo Dal Farra
- Compositions by Ricardo Dal Farra

About this composition:

"... due giorni dopo" was composed by Ricardo Dal Farra at Centro di Sonologia Computazionale of the University of Padua, Italy, in 1988.

It was created using the Interactive Computer Music System, developed by Graziano Tisato, to access a file with all the elementary components of the italian language (vowels, vowel to vowel transitions, consonants, consonant to vowel transitions, etc.) and to convert texts written directly into the computer (through the alphanumeric keyboard) into typical speech sounds. The linear predictive coding (L.P.C.) technique was used to (re)synthesize the vocal sounds.

With unusual texts and fine control of resynthesis parametres, four electronic "singers" were created. And a text-to-speech-to-music process was carried out. For the original four channels version, a quadraphonic system of amplification is used around the audience to distribute each one of the four artificial voices recorded to only one of the speakers. In the stereo remixed version, two voices are placed together on each audio channel.

"... due giorni dopo" was premiered at Centro Cultural Ciudad de Buenos Aires, Argentina, in November of 1988.

Acerca de la obra:

"... due giorni dopo", para 4 voces electrónicas, fue compuesta por Ricardo Dal Farra en el Centro di Sonologia Computazionale de la Universidad de Padova, Italia, entre julio y agosto de 1988.

La composición fue producida con computadoras IBM S/4381 y S/7, utilizando el programa Interactive Music System desarrollado por Graziano Tisato. Mediante este sistema se accedió a un archivo con información codificada de fonemas de la lengua italiana (vocales, consonantes y también transiciones de unas a otras vocales y de vocales a consonantes, etc.), convirtiendo textos ingresados directamente a la computadora a través de su teclado alfanumérico, en sonidos típicos del habla humana. El proceso de resíntesis vocal fue realizado mediante la técnica conocida como predicción lineal (LPC). A partir de textos poco usuales, y un cuidadoso control de los parámetros de resíntesis, se crearon así 4 voces "electrónicas". Esta cinta presenta una mezcla estéreo de la versión original cuadrafónica.

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