关于多声卡的使用~~~

[aSenY]

我的电脑装有两个声卡SB1和SB2，分别接上音箱SB1_Box和SB2_Box，我习惯用VB编程。现在的问题是怎样实现两个通道互不干扰地播放不同的曲目。（相当于同一窗体放置两套放音设备，各自定位到不同的声卡并且可以独立操作，互不干扰）

[aSenY]

不用禁呀，可用控制面板设置一个当前默认声卡～～～

[ZhangYv]

好象不行吧？我也有两个声卡AC 97和SB，通常我禁掉AC 97的。我也想知道可否独立操作。

[clickmesina]

你只需要用一个声卡，两个声道分别播放不同的就可以了。当然那需要调用底层的Win32API。

[aSenY]

谢谢大家参与，主题是不能变的~~~

[zhangfuren]

好象你得找比尔.盖茨了，因为windows里只允许你使用一个声卡

[pocky]

楼上的说错了．　系统可以允许多个声卡的．　使用底层ｗａｖｅａｐｉ函数可以选择不同的声卡．

[zhangfuren]

是么？这个我倒是不知道了，见笑！

[sstower]

UINT waveInGetNumDevs(VOID);
MMRESULT waveInOpen(
LPHWAVEIN phwi,
UINT uDeviceID,
LPWAVEFORMATEX pwfx,
DWORD dwCallback,
DWORD dwCallbackInstance,
DWORD fdwOpen
);
uDeviceID为声卡的编号

[简易无忌]

没有用的，收工吧，以后再见~~~

[简易无忌]

Type MCI_WAVE_SET_PARMS
'//////////////////////////////////////////////////////////////////////////////////////////
' The MCI_WAVE_SET_PARMS structure user-defined variable contains information for
' the MCI_SET command for waveform-audio devices.
'//////////////////////////////////////////////////////////////////////////////////////////
dwCallback As Long ' Window handle used for the MCI_NOTIFY flag.

dwTimeFormat As Long ' Time format of the device.

dwAudio As Long ' Channel number for audio output. Typically used
' when turning a channel on or off.

wInput As Long ' Audio input channel.

wOutput As Long ' Output device to use. For example, this value could be
' 2 if a system had two installed sound cards.

wFormatTag As Integer ' Format of the waveform-audio data. See the Platform SDK
' product documentation for more information about formats.

wReserved2 As Integer ' Reserved
nChannels As Integer ' 1 for Mono or 2 for stereo.
wReserved3 As Integer ' Reserved.
nSamplesPerSec As Long ' Samples per second.
nAvgBytesPerSec As Long ' Sample rate in bytes per second.
nBlockAlign As Integer ' Block alignment of the data.
wReserved4 As Integer ' Reserved.
wBitsPerSample As Integer ' Bits per sample.
wReserved5 As Integer ' Reserved
End Type

Type WAVEOUTCAPS
'///////////////////////////////////////////////////////////////////////////////////////////
' The WAVEOUTCAPS user-defined variable describes the capabilities of a waveform-audio
' output device.
'///////////////////////////////////////////////////////////////////////////////////////////
wMid As Integer ' Manufacturer identifier for the device driver for
' the device. Manufacturer identifiers are defined
' in Manufacturer and Product Identifiers in the
' Platform SDK product documentation.

wPid As Integer ' Product identifier for the device. Product
' identifiers are defined in Manufacturer and Product
' Identifiers in the Platform SDK product documentation.

vDriverVersion As Long ' Version number of the device driver for the device.
' The high-order byte is the major version number, and
' the low-order byte is the minor version number.

szPname As String * MAXPNAMELEN ' Product name in a null-terminated string.

dwFormats As Long ' Standard formats that are supported. See the Platform
' SDK product documentation for more information.

wChannels As Integer ' 1 if the device supports mono or 2 if the device supports
' stereo output.

dwSupport As Long ' Optional functionality supported by the device. See the
' Platform SDK product documentation for more information.
End Type

[pocky]

设备号中 0是系统的wavemapper
1是第一个声卡。
2是第二个声卡。
3。。。。

[pocky]

靠。 MD。 欺诈。