Appendix A - Technical Specs - M-Audio Digital Recording Interface Delta 44 Instruction Manual

Possible Cause 3: Some accelerated graphics cards use excessive
amounts of system bandwidth, preventing the recording buffer of an audio card
from keeping up with demand. This can cause clicks in the recording. Reducing
or turning off the graphics card's graphics acceleration feature often resolves
this problem. In Windows, the level of graphics acceleration is accessed from
Start |Settings | Control Panel | System | Performance | Graphics.
Problem: The sound from the monitor mixer is muffled. It sounds as if it
were running through a mixer with the treble control turned all the way down!
Possible Cause: The current Delta 44 sample rate is too low. The
monitor mixer is a digital device that runs at the current sample rate of the
Delta 44 board. The frequency response of the mixer is roughly one-half
of the sample rate. There is no way to prevent this lost frequency response
while playing back or recording at a low sample rate. However, it may be
prevented when the system is idle. See the "CODEC SAMPLE RATE"
paragraph of the section 'Hardware Settings Page' for more information.

Appendix A - Technical Specs

Analog Audio
Peak Analog Input Signal:
Peak Analog Output Signal:
Measured Dynamic Range:
Outputs:
Inputs:
Measured THD (at 0dBFS):
Outputs:
Inputs:
Measured Frequency Response:
Input Impedance:
Input Connectors:
Output Connectors:
Adapter Resource Requirements
IRQ:
I/O Addresses:
DMA Channels:
+14dBu (+4dBu setting),
+6dBV (Consumer setting),
0dBV (-10dBV setting).
+14dBu (+4dBu setting),
+6dBV (Consumer setting).
0dBV (-10dBV setting)
103dB (a-weighted),
99dB (a-weighted)
less than 0.0015%,
less than 0.0024%
22Hz - 22kHz, -0.3,-0.2dB
10k ohms minimum
1/4" female TRS-type, balanced or unbalanced
1/4" female TRS-type, balanced or unbalanced
One required
Four blocks: 32, 16, 16, and 64 bytes
None required
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