How do I change a WAV audio file format?

I am trying to create an app in Borland C++ Builder where I can modify the format of a WAV file (say from 16-Bit Stereo at 22.05kHz to 8-Bit Stereo at 11.025kHz).  So, I can open a WAV file at 16-Bit Stereo, 22.05kHz and save it as a file at 8-Bit stereo, 11.025kHz.  Is there anyway that I can use the MCI command for this app?  Please help.
dannilAsked:
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chensuCommented:
No, you cannot MCI command to do it. There are two ways.
1. There is WAVEMIX DLL (16-bit) source code on Microsoft JumpStart 2.0 CD-ROM. In that source code, you can find wave format conversion functions.
2. You can call Audio Compression Manager (ACM) functions to do the conversion. For 16-bit programs, ACM comes with Video for Windows 1.1 DK. For 32-bit programs, ACM comes with Win32 SDK.
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