decibels.h

来自「嵌入式操作系统wince5.0下的声卡驱动」· C头文件 代码 · 共 33 行

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
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//////////////////////////////////////////////////////////////////////////////
/*****************************************************************************

	THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
	ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
	THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
	PARTICULAR PURPOSE.

Module Name:

	Decibels.h

Abstract:

	Declaration file for routines in Decibels.h

*****************************************************************************/
//////////////////////////////////////////////////////////////////////////////


DWORD DBToAmpFactor( LONG lDB );
LONG AmpFactorToDB( DWORD dwFactor );