RME 12Mic-D handleiding
Handleiding
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• Maximum input level, Gain 50 dB: -22 dBu
• Switchable high impedance (unbalanced TS): 1 MOhm
3.8. Frequency and Impulse Response
The A/D converters of the 12Mic-D are optimized for extremely low latencies (Short Delay IIR filters).
At single speed, the conversion prioritizes frequency response to ensure linear conversion across the
entire frequency band.
At double and quad speed (88.2 kHz and higher), the conversion has been optimized to deliver a near-
perfect impulse response. This is achieved by allowing a lower cutoff frequency and a slower roll-off
of the anti-aliasing filter. It shifts from around 44 kHz to 25 kHz at 96 kHz (84 kHz to 32 kHz at 192
kHz) and attenuates higher signals less steeply. The resulting impulse response shows significantly
less ringing artifacts than steep filters at at a higher cutoff frequency. Since even the lower cutoff
frequencies are located well above the audible range, the advantage of the improved impulse
response outweighs the benefit of a higher cutoff frequency.
If the 12Mic-D is used for scientific research (ultrasonic signals) with measurement
microphones that maintain a linear frequency response above 25 kHz, please contact
your support for a custom solution.
3.9. Analog Input LEDs with Integrated Metering
Each analog input is accompanied by an LED. Shades of green, yellow, and
red represent the current level for each channel. Additionally, each LED
shows the active state of phantom power (yellow), active TRS input
(white), active High-Z impedance on TS (blue), and participation in a gain
group (green) while pressing the corresponding quick select buttons.
3.10. LED Meters Color and Intensity Reference
The following table describes the signal level represented by the backlight color. Each value
corresponds to full scale, which is equivalent to the reference level of the corresponding input.
Color Color name dBFS
Green
-54 (barely visible in low light)
-40 (barely visible in daylight)
-20 (bright green)
Yellow -5 (strong yellow)
Orange -4
Red -1
Red flashing fast 0 (at least three consecutive samples)
RME 12Mic-D User’s Guide
3.8. Frequency and Impulse Response | 14
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Productinformatie
| Merk | RME |
| Model | 12Mic-D |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 11970 MB |
