Audio signal control system and method therefor
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United States of America Patent
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Oct 15, 2002
Grant Date -
N/A
app pub date -
Apr 4, 1997
filing date -
Apr 4, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An audio signal control system has a fader control, a memory store, a CPU controlling operation of the memory store and outputting signals to a digital signal processor and thence, via a DAC to a speaker. The invention produces plural sequences of control parameters indicative of the position of the fader and an identifier code representative of each sequence is stored in memory to produce a first version. When a user modifies the position of the fader so a sequence or sequences are modified and a second version of identifier code for the sequences is produced comprising the first version plus the modified sequence. With such a procedure, it is possible for a user to undo/redo versions of the fader control positions and thereby manipulate an audio signal.
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