audiopraise VanityPRO 사용자 설명서 - 페이지 10

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Volume Control

A part of the processing engine is also full precision volume control. It is used not only for

DSD and PCM level matching, but it also gives the user full control of the overall output level. With

0dB setting (maximum volume) the digital signal path is bit accurate.

All the digital audio processing is performed by a medium sized FPGA. The firmware for

the FPGA is user-upgradeable, together with the main processor firmware, to add new features

and functionality in the future.

There is a galvanic barrier put between the HDMI and the audio parts to limit the

electromagnetic noise from the HDMI domain influencing the sensitive audio and clock circuits in

the audio domain. Another advantage of this feature is the option to power the two functional

parts independently from separate power supplies. The audio part can be powered from a high

quality and low noise, possibly linear, power supply without the risk of being plagued by the noise

from the switching regulators on the HDMI side.

Dielectric domains of the Vanity

The menu system is structured into several screens. Some screens are used for monitoring

of the HDMI stream and incoming audio signal properties, while other are used to set the system

and audio processing parameters.

PRO

shown in the 3D model of the main PCB

Page 10 of 19

– User Manual v1.2

Vanity

PRO