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distortion when dither is not used. We recommend using the Normal setting for most

applications and bit depths.

Ultra

The Ultra setting provides the most noise reduction: approximately 10.5 dB. Ultra is suit-

able for use only at the last stage of mastering high-resolution files (16-bit and higher) on

high-quality digital media. We do not recommend the Ultra setting if subsequent editing

is required or the file is destined for media with poor error correction (fortunately, this

type of media is not commonly encountered anymore).

ital/A

nalog D

omain

In the Digital Domain position, no sample exceeds the Out Ceiling value. After analog con-

version, however, it is possible to have higher peaks than in the digital domain. This is due to

complex digital audio issues involving “peaks between the samples.” Most high-quality digi-

tal-to-analog converters have at least 3 dB headroom to allow for these peaks; many have 12

dB.

Use the Analog Domain position to have absolute control over any peak that occurs in both

the analog and digital domains.

16-bit (and higher) Mastering

All processing (i.e., EQ, sample-rate conversion, dynamic changes, etc.) must be done prior to the L1-

UltraMaximizer, which should be the last process in the chain. The reason for this is that dithering should

occur only once before the master recorder or final file bounce.

Recommended Settings

1. Use the input faders to balance the left and right channels.

2. For 16-bit and higher input files, set the Threshold for about 4–6 dB of Gain Reduction in the

Atten meter.

3. Set the Output Ceiling to the maximum peak output desired. The Output Ceiling can be set to 0

dB without clipping. We recommend -0.3 dB for CDs (see the Peak Clipping section for more

information).

4. Leave the Release time set to the default (1 ms).

5. Set the Quantize output to 16-bit for CD/DAT or 20-/24-bit for higher archival or mastering

media.

6. Set the Dither to type1 or type2. We recommend IDR type1 for most high-resolution applications.

7. Set the Shaping (Moderate, Normal, Ultra, None). Ultra and Normal are recommended for most

high-resolution applications.

8. Select Digital or Analog Domain mode.

We recommend the Analog Domain mode for all final production masters to avoid clipping from

poorly designed DA converters without compromising any L1 processes. For more information, see

Digital/Analog Domain in the IDR controls chapter.

Y56K User Guide

Waves Y56K User Manual

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