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Media Rack
System Mixer
Hardware/Software
Section 4- Installation of Windows 95
4.6 W95 DOS mode MPU-401 MIDI emulator
You can select MIDI output device as 'MPU-401 MIDI' in DOS games or
applications that run in W95 DOS box. Please make sure that I/O port address
is match to resources in "MPU-401 MIDI emulator" device in 'Sound,video
and game controller' of 'System' of 'Control Panel'. Please note, the DOS
mode MPU-401 emulator uses WSS mode to output, so please select SB16
mode as wave (voice) output device.
4.7 MPU-401 MIDI input functions setting
Because of saving one IRQ channel, we turn off MIDI in functions by default.
(It needs to enable MIDI in functions only when record from external MIDI
keyboard.) You can run MPU-401 MIDI device setting program in Audio Rack
group to enable or disable it.
4.8 C3D HRTF Positional Audio
4.8.1 What is HRTF?
The technology of C3D using an audio filter called Head Related Transfer
Functions (HRTFs). HRTF is a set of audio filters which are varying locations
of sound effects (spatial hearing cues) in three-dimension measured from
listener's eardrum. Using this technology and special digital signal processing
to re-create spatial hearing cues makes our ears to hear a realistic and
three-dimensional sounds coming from a pairs of loud speakers or
headphones.
4.8.2 How to listen to C3D sound correctly and properly?
1. Use headphones to have much better effect
When you use headphones in listening, there will less interference such as
outside voices or room reflections comparing to using speakers.
2. Choose correct output devices
Choose the correct output devices in the options of demo program in
accordance with what listening devices you want to listen to. Because listening
through speakers must be proceeded by crosstalk cancellation, if you choose
the wrong output devices, there won't be any 3D positional audio effect..
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