ASTRO VA-1842 - Audio Infoframe

Chapter 4 Source ANALYSIS
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4.1.4 Audio InfoFrame
Decodes and displays Audio InfoFrame of the HDMI input.
For Audio InfoFrame, the information about the audio output by the transmitter is input.
The display method is as follows.
Mouse operation
Right-click → left-click ANALYZE → left-click Audio InfoFrame
Unit operation
Press the ANALYZE key.
→ press L CLICK over Audio
InfoFrame
Press R CLICK → press L CLICK over ANALYZE
Also, you can switch between HEX and GUI display by right-clicking over the window and then clicking HEX<-
>GUI.
The Audio InfoFrame display items when GUI display are as follows.
Displayed item
Description
Status Change
Presence or absence of changing after pressing "Clear"
Type Code
84 H
Version Number
XX H
Length of InfoFrame
XX H
Checksum
XX H
Audio Coding Type
Refer to Stream Header
IEC60958 PCM
AC-3
MPEG1(Layers 1 & 2)
MP3(MPEG1 Layer 3)