VERTEX GLOSSARY / D/A + MINI-TOSLINK

Audio Extraction – HDfury Vertex glossary

3.5 mm D/A combo jack: analog stereo or mini-TOSLINK digital audio up to 5.1 Dolby/DTS.

SIMPLY PUT

Audio extraction means getting the sound out of an HDMI signal and sending it through a separate audio cable.

The Vertex has one small round socket marked D/A for this. You plug in either a normal 3.5 mm headphone-style cable for stereo, or a mini-TOSLINK light cable for digital surround sound up to 5.1.

WITH THE HDFURY VERTEX

What audio formats can the HDfury Vertex send to its optical and analog output?

PARTLYPartly. The D/A jack gives analog stereo, or optical up to 5.1 Dolby Digital/DTS. Lossless audio (TrueHD, DTS-HD MA, Atmos, DTS:X) is not extracted; it leaves the Vertex over HDMI only, unchanged.

How to use it with the Vertex:

For optical, use a 3.5 mm mini-TOSLINK cable, or a regular TOSLINK cable with a mini-TOSLINK adapter (p.105).
For analog stereo, use a normal 3.5 mm stereo cable in the same D/A jack (p.105).
Make the source send 5.1: Automix 5.1 Multi flag (p.28), RS232 #set edidaudio 51 (p.50) or IR vertex_edidaudio51ch (p.59).
Check the audio format in the USB GUI lines AUD0/AUD1 (p.27).

FAQ: lossless audio and D/A jack (p.104-105) →USB GUI: EDID Manager audio flags (p.28) →

D/A + MINI-TOSLINKD/A OUTPUT

KEY POINTD/A OUTPUT

PURPOSEHow to take audio out of HDMI.

VERTEXTechnical control layer

01 / SIMPLE EXPLANATION

What is it?

How to take audio out of HDMI.

The 3.5 mm combo connection can provide analog stereo or optical mini-TOSLINK digital audio up to the documented 5.1 Dolby/DTS capability.

02 / REAL-WORLD USE

Why would you use it?

Useful for feeding audio equipment separately from the video destination.

In a Vertex system, this works together with the source, the connected sink(s), EDID/HDCP behaviour and the selected routing or processing configuration.

03 / HOW VERTEX USES IT

Inside the HDMI chain

3.5 mm D/A combo jack: analog stereo or mini-TOSLINK digital audio up to 5.1 Dolby/DTS.

SOURCE → VERTEX → DISPLAY / AVR / PROJECTOR

04 / IMPORTANT TO KNOW

Do not confuse this with…

Analog stereo and optical digital output are different modes of the combo connector.

This page explains the term in the context of the documented Vertex specification rather than as a general claim about every HDMI device.

RELATED TERMS

D/Amini-TOSLINKS/PDIF5.1

← BACK TO SPECIFICATIONS

QUESTIONS PEOPLE ASK

Common questions

Can I get Dolby TrueHD, DTS-HD MA or Atmos from the optical output?

No. Lossless audio only goes out through HDMI. The optical output gives stereo or 5.1 Dolby/DTS, and the analog output is stereo only; the Vertex does not convert lossless audio (p.104).

My amplifier has a normal square optical input. What cable do I need?

A 3.5 mm mini-TOSLINK to TOSLINK cable, or a regular TOSLINK cable with a mini-TOSLINK adapter (p.105).

Why do I only get stereo from the jack?

The source only sends what the EDID allows. If the EDID reports stereo, the source sends stereo. Pick an EDID with more audio or use the Automix 5.1/7.1 flags (p.15, p.28).