7 melodies + "Welcome, welcome to our store" voice, integrated circuit schematics

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As shown in the figure is the principle diagram of the "Welcome, welcome to patronize" sound and light voice and music integrated circuit. The IC internally stores 2 sections of "Welcome, welcome to patronize" voice information and 7 famous Chinese and foreign songs with beautiful melodies and high fidelity. This voice IC has the following three characteristics:

1. The two stored voice messages can be divided into single voice of "Welcome", "Welcome to our patronage", "Welcome, welcome to our patronage" or two voices of "Welcome", "Welcome to our patronage" and three voice outputs of "Welcome", "Welcome to our patronage", "Welcome, welcome to our patronage" according to actual use;
2. The triggering methods are flexible and diverse: pulse triggering, level triggering, sequential triggering, random triggering, cyclic triggering, etc.;
3. Sound and light synchronous/asynchronous flashing, running water flashing, etc.

7 melodies + "Welcome, welcome to our store" voice, integrated circuit schematics


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