DRAKE HDE24 사용 설명서 - 페이지 3

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DRAKE HDE24에 대해서도 마찬가지입니다: 사용 설명서 (4 페이지)

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Introduction

The Drake® HDE24 high-definition en-

coder generates an MPEG2 or

MPEG4 H.264 video stream, with

Dolby® AC-3 or MPEG1 layer 2 audio.

This module is designed to be in-

stalled into the Drake EH24- or

MEQ1000-style chassis, which

provide the control and output inter-

faces to the unit. The encoder ac-

cepts HDMI™ and component inputs,

and can inject closed-captioning data

from a synchronized composite video

source (typically provided by the same

decoder that produces the HD video

stream).

Installation

This unit installs into the chassis in the

same fashion as the SDE24 encoder;

for chassis insertion instructions, see

the manual for your particular chassis.

DO NOT INSERT THIS ENCODER

WITH POWER APPLIED TO THE

CHASSIS - RESULTING DAMAGE

WILL NOT BE COVERED BY THE

LIMITED WARRANTY. Cable the in-

puts appropriately (see the Rear

Panel Connections section for details).

Upgrading Firmware

The HDE24's firmware may be

upgraded in the field, using a

removable USB flash drive. Once you

have obtained the latest firmware

version file, copy the file onto a

removable flash drive. The file must

not be placed in any sub-folder of the

drive. Power down the chassis, insert

the flash drive into the Service port on

the unit, and apply power to the

chassis. The HDE24 will

automatically upgrade and then

reboot. Once the unit is functioning

normally again (encoded audio and

video is being generated), remove the

flash drive from the unit.

Introduction, Setup, and Operation 1

Operation

Power on the chassis, and select the

newly-inserted HDE24 unit via the

LEFT and RIGHT buttons on the front

panel. The following configuration set-

tings are available for the HDE24 (de-

faults listed in bold italics):

Video Source: Component, HDMI,

Composite - sets the input video

format

Resolution: Scan, 1080i, 720p, 480p,

480i - auto-scan input resolution, or

force a particular video mode. Not

available for composite (composite

is always 480i)

Format: MPEG2, MPEG4 H.264 -

sets the video compression method

used

MPEG4 Profile: Default, Simple, Ad-

vanced Simple - sets the MPEG4

video profile used (only available

when format is MPEG4 H.264)

MPEG4 Level: 0, 1, 2, 3, 4, 5 - sets

the MPEG4 encoding level (only

available when format is MPEG4

H.264)

Bitrate: Range varies by resolution -

sets the bandwidth used by the

video encoder (15.0 Mbps)

Brightness: Sets the video

brightness - larger values increase

brightness (128)

Contrast: Sets the video contrast -

larger values increase contrast

(128)

Saturation: Sets the video contrast -

larger values increase saturation

(128)

Hue: Adjusts the video color hue -

behavior varies by input mode (128

for Composite, 0 for other inputs)

Audio Source: Analog, HDMI -

select audio input source (only

available when video input is HDMI)

Audio Encode: AC-3, MP2 - changes

audio encode format between

Dolby AC-3 and MPEG1 Layer 2.

Audio Gain: varies audio level +/-

15dB (0, only avaliable when audio

input is Analog)