CM6533DH datasheet(21/60 Pages) CMEDIA

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CM6533,CM6533N,CM6533X1,CM6533DH

USB Audio Chip

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Rev.1.6

With the four (4)-preset EQ modes, clients could use embedded FLASH parameters to change the gain values for each

band of the center frequency and hence customize the four (4)-preset EQ curves based on the preset center

frequencies and bandwidth. Alternatively, clients could also skip the four (4) preset modes and create a customized

EQ curve by changing the center frequencies, gain values and even the bandwidth factors in embedded FLASH

parameters to make the headphone sound better or meet some frequency requirements. However, in this case, the

product will always use one optimized EQ setting and could not allow users to dynamically change into different

preset modes. Clients could also consider reporting Treble/Bass feature unit by embedded FLASH to Windows UAA

driver to allow end-users to adjust Bass (F1) and Treble (F5) by themselves. Therefore there are three

usage/application scenarios as shown by the summary table below:

3 EQ Usage/Application Scenarios

Scenario

Gain Value

Center Frequency /

Bandwidth Factor

Number of

Modes

User Control Type

4 Switchable Presets

Configurable

Fixed

Hardware

Full-Customized EQ

Configurable

N.A.

Treble/Bass Feature

Unit

Configurable

Software

**Note: Hardware user control type means end-users could select which EQ mode they are going to use by a hardware

switch/button on the product; software control means they could control the treble/bass gain values by GUI in

Windows OS sound device advanced settings.

CM6533DH Datasheet(PDF) 21 Page - C-Media Electronics