M-Audio Dman PCI [14/29] The windows device manager

• SoundFusion™ DSound Acceleration. This feature allows the DSP to per-

form many of the audio duties that would otherwise have to be handled by

the host CPU. In other words, it enables audio acceleration. The default

setting is “enabled.”

• Taskbar. Enabling this function places a SoundFusion™ icon on the

Windows taskbar for easy access to the SoundFusion properties page.

The AEC page controls the following setting:

• Acoustic Echo Cancellation. This feature could be used if the DMAN PCI

board is being used as a speakerphone. This is disabled by default (set to

Never).

The MIDI page controls the following setting:

• Maximum Notes. This is the polyphony setting of the built-in synthesizer.

Raising this number will increase the number of simultaneous MIDI notes,

but will decrease the number of simultaneous 3D audio channels. By

default, this is set to the General MIDI standard setting: 24 notes simulta-

neously. 64 notes is the maximum polyphony possible.

The Windows Device Manager

You may find the DMAN PCI driver status in the Windows Device Manager

page of the System Properties dialog box. Open the Device Manager by press-

ing the Windows Start Button and selecting Settings | Control Panel | System |

Device Manager. Once the Device Manager is open, it will display a list of

device “types.” Scroll down through the list until you locate Sound, video and

game controllers. Click on the “+” next to Sound, video and game controllers

to view the installed products within that type. DMAN PCI is of the class

Sound, video and game controllers and should appear in the list if the DMAN

PCI drivers are properly installed. Below is an example view of the Device

Manager device list.