Method for processing a waveform

Details Method for processing a waveform Method for processing a waveform

1991-06-10

1993-02-09

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84663, G10H 1057

Patent

active

051854910

ABSTRACT:
A method for processing a waveform includes the steps of dividing an original musical tone into head data, mix data, and loop data. The data is subjected to several processing steps, including cross-fade mixing. All processing steps are carried out before the processed waveform is stored in memory. Therefore, when the stored data is read out to reproduce the original musical tone, no interpolation steps are required to link the head, mix, and loop data together because that data has been smoothly linked together prior to storage in the memory. As each musical tone is read out, the head data is read out first, followed by the mix data, and then the loop data is read out in alternating directions. The smoothly linked head, mix, and loop portions of the musical tone provide a pleasing reproduction of the original musical tone.

REFERENCES:
patent: 4635520 (1987-01-01), Mitsumi
patent: 4916996 (1990-04-01), Suzuki et al.

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