Sony Pro 10, User Manual

Page: 184 / 382

iZotope MBIT+ Dither
From the Process menu, choose Bit Depth , and then choose iZotope MBIT+ Dither from the submenu to convert sound files to
different bit depths and apply dithering.
Tip:
Because the signal-to-noise ratio decreases when you decrease the bit depth of a file, you should maximize the volume of the sound
file using the Volume or Normalize functions before performing the conversion.
1.
From the Process menu, choose Bit Depth , and then choose iZotope MBIT+ Dither from the submenu. The iZotope MBIT+ Dither
dialog is displayed.
2.
Choose a setting from the Preset drop-down list, or adjust the controls as needed.
Item Description
Bit depth Choose the desired bit depth from the drop-down list.
Note:
Increasing a file's bit depth cannot improve the quality of the existing audio,
but does allow higher resolution for processing.
Dither mode Choose a setting from the drop-down to choose the type of dithering that will be
applied to mask quantization noise.
• Type 1 Uses a traditional rectangular probability distribution function.
• Type 2 Uses a traditional rectangular probability distribution function.
• MBIT+ Uses a proprietary algorithm to offer superior results for all types of source
material.
Noise shaping Choose a setting from the drop-down list to control the amount of noise shaping that
will be applied.
When Type 1 or Type 2 is selected in the Dither mode drop-down list, the following
settings are available:
• None No noise shaping is applied.
• Simple A high-pass filter is applied to the dither noise.
• Clear Aggressively moves dither noise toward the Nyquist frequency.
• Psych5 Uses a fifth-order filter to move dither noise away from audible frequency
bands.
• Psych9 Uses a ninth-order filter to move dither noise away from audible frequency
bands.
When MBIT+ is selected in the Dither mode drop-down list, you can choose a setting
from the Noise shaping drop-down list to control the amount of noise shaping
applied. Increased settings will provide more audible noise suppression at the
expense of a higher noise floor.
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