This project built on AVR. The gold of this project has to have a second voice out line from PC.

USB Speaker
...........\Circuits
...........\........\USB Speaker.PcbDoc
...........\........\USB Speaker.PcbDocPreview
...........\........\USB Speaker.pcbdoc_viewstate
...........\........\USB Speaker.PrjPcb
...........\........\USB Speaker.PrjPcbStructure
...........\........\USB Speaker.SchDoc
...........\........\USB Speaker.SchDocPreview
...........\Programs
...........\........\USBSpeaker
...........\........\..........\bin
...........\........\..........\...\Release
...........\........\..........\main.cpp
...........\........\..........\obj
...........\........\..........\...\Release
...........\........\..........\USBSpeaker.cbp
...........\........\..........\USBSpeaker.layout
...........\........\USBSpeaker2
...........\........\...........\bin
...........\........\...........\...\Release
...........\........\...........\...\.......\USBSpeaker.elf.map
...........\........\...........\...\.......\USBSpeaker2.elf
...........\........\...........\...\.......\USBSpeaker2.elf.eep.hex
...........\........\...........\...\.......\USBSpeaker2.elf.hex
...........\........\...........\...\.......\USBSpeaker2.elf.map
...........\........\...........\main.cpp
...........\........\...........\obj
...........\........\...........\...\Release
...........\........\...........\...\.......\main.o
...........\........\...........\USBSpeaker2.cbp
...........\........\...........\USBSpeaker2.depend
...........\........\...........\USBSpeaker2.layout

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