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Peak Analog Output Meters |
Post-converter peak analog output level (dBu). |
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Mute (Relay) |
Mutes the channel and switches off the relay on the output. |
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Maximum Analog Sine Output Level |
The maximum analog output signal level as it leaves the card. This is the RMS level of the signal. When the signal level exceeds the peak level (3 dB higher than the RMS level), it is clipped automatically as indicated by the Digital Clip LED. The range is dependent on the type of card you are using. |
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Peak Digital Output Meters |
Pre-Converter Peak Digital Output Level (dB). 23dB equals full-scale digital output. |
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Digital Clip |
Lit (red) when the output signal is clipped. This occurs when the signal exceeds the peak level. |
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Infinite Clip Hold |
When clicked, the hold indicators on the digital output level meters will continually show the maximum signal value. The hold indicators will only change when a higher signal level is detected. |
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Clip Hold Time |
The time in seconds that the hold indicators on the digital output level meters will continually show the maximum signal value. The range is 100ms to 100s. |
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Invert |
Inverts the polarity of the signal. |
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Solo. Specifies that the channel is to remain open while all others are muted. Any other channel with Solo on will also remain open. |
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Digital Gain |
The level of gain to be applied to digital signal inside the unit. The signal has already been converted from analog to digital by the A/D converter. The range is to -100dB to 18dB. |
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Dither Setup (double-click to display settings) |
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Mute (X) |
Mutes the dither noise generator. |
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Type |
Specifies the type of dithering to use. Low-level white noise is added to the signal in order to randomize quantization errors, which has the effect of turning unpleasant distortion into a more acceptable analog noise. |
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Rectangular |
The most basic shape: it decorrelates the noise from the signal anywhere within the range. |
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Triangular |
Gives triangular probability distribution for the noise. |
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Shaped Triangular |
Adds triangular noise then feeds the signal through a high-shelf filter to push the noise spectrum towards the higher frequencies. This lowers the overall perceived volume of the noise. |
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Round |
Adds 1/2 LSB (Least Significant Bit). |
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Size |
Sets the noise level to match the target number of bits. The range is 2 to 32. |
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See also |
