Portable sound processing device

Details Portable sound processing device Portable sound processing device

2008-05-30

2010-12-14

Fletcher, Marlon T (Department: 2832)

Music

Instruments

Electrical musical tone generation

C084S600000, C084S609000, C084S617000, C084S625000, C084S634000

Reexamination Certificate

active

07851688

ABSTRACT:
A portable sound processing device [1000] designed to retrofit a portable digital player (PDP) such as an iPod sold by Apple, Inc., includes a display [1201] for interacting with a user, a plurality of input devices [1103-1133] for receiving input from a user. The portable sound processing device [1000] has internal or external pre-recorded music which may be mixed with the live input from a musical instrument [3]. The processor [1000] may perform digital signal processing to change the pitch while keeping the tempo the same for pre-recorded music to match the key of the instrument being played. The tempo may be adjusted while not affecting the pitch allowing a musician to practice a song at a slower pace. It may also highlight or remove a specific instrument for practice purposes. The result is a portable signal processing device [1000] which aids music transcription, learning and study.

REFERENCES:
patent: 5698834 (1997-12-01), Worthington et al.
patent: 2007/0137463 (2007-06-01), Lumsden
patent: 2008/0156173 (2008-07-01), Bauer
patent: 2009/0272251 (2009-11-01), Georges et al.

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