xinyu_ha的专栏

vc代码 音频采集 录音 回放 直接可用，在音频处理上很有帮助。

wince下的音频芯片aic32的驱动 //----- Used to track DMA controllers status ----- #define DMA_CLEAR 0x00000000 #define DMA_DONEA 0x00000008 #define DMA_STRTA 0x00000010 #define DMA_DONEB 0x00000020 #define DMA_STRTB 0x00000040 #define DMA_BIU 0x00000080 // Determines which buffer is in use: (A=0, B=1) //----- Used for scheduling DMA transfers ----- #define OUT_BUFFER_A 0 #define OUT_BUFFER_B 1 #define IN_BUFFER_A 0 #define IN_BUFFER_B 1 #define HAO_DUG 1 class HardwareContext { public: static BOOL CreateHWContext(DWORD Index); HardwareContext(); ~HardwareContext(); void Lock() {EnterCriticalSection(&m_Lock);} void Unlock() {LeaveCriticalSection(&m_Lock);} DWORD GetNumInputDevices() {return 1;} DWORD GetNumOutputDevices() {return 1;} DWORD GetNumMixerDevices() {return 1;} DeviceContext *GetInputDeviceContext(UINT DeviceId) { return &m_InputDeviceContext; } DeviceContext *GetOutputDeviceContext(UINT DeviceId) { return &m_OutputDeviceContext; }