Music – Instruments – Electrical musical tone generation
Reexamination Certificate
2004-01-02
2008-10-28
Warren, David S. (Department: 2837)
Music
Instruments
Electrical musical tone generation
C084S697000, C084S645000
Reexamination Certificate
active
07442870
ABSTRACT:
A method and apparatus are provided for representing, storing, and rendering audio data. An audio file enables users to store and exchange sampled audio waveform data along with additional data used to generate or synthesize an audio output closely approximating the original waveform data. The audio file used to generate a piece of music may include note events, synthesis parameters, instruments and track information, and other information for shaping music notes, as well as playback characteristics for emulating a desired ambiance. A rendering apparatus may implement a process for selecting the representation of audio data most likely to provide the best fidelity for the given playback circumstances. The combined audio format also provides a greater degree of compatibility for audio players with different playback capabilities.
REFERENCES:
patent: 6924425 (2005-08-01), Naples et al.
patent: 2002/0082837 (2002-06-01), Pitman et al.
ACID User's Manual (Sonic Foundry Europe. 1999)□□.
Helms Jan-Hinnerk
Homburg Clemens
Lengeling Gerhard
Mensch Gunter
Apple Inc.
Hickman Palermo & Truong & Becker LLP
Warren David S.
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