Setup Audio for Windows 7 on MacBook Pro 13"

My brand new MacBook Pro 13″ dual-boots on Snow Leopard and Windows 7. I used the official Snow Leopard DVD to install device drivers for Windows 7. Everything worked fine except for audio, which had a very low volume for both playback and recording. Here’s how I fixed it. Run registry editor as administrator and go to:


Make sure the following entries are present:

Name Type Value
n0DInAmpCaps REG_DWORD 0x00270301
n02OutAmpCaps REG_DWORD 0x80017f73
n03OutAmpCaps REG_DWORD 0x80017f73
n04OutAmpCaps REG_DWORD 0x80017f73
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