HDMI audio extractors – any good?

  • Thread starter WaynePflughaupt
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WaynePflughaupt

WaynePflughaupt

Audioholic Samurai
Has anyone used any HDMI audio extractors like the one linked below? My main concern is that it does not degrade the picture quality. I am concerned about the low prices these things all have – this is most expensive one I’ve found. If someone has a higher-grade suggestion, I ‘m certainly open.


Regards,
Wayne A. Pflughaupt
 
MR.MAGOO

MR.MAGOO

Audioholic General
So you want to make bootleg movie soundtracks to sell on the street corner? LOL :p
 
S

SMc

Enthusiast
Has anyone used any HDMI audio extractors like the one linked below? My main concern is that it does not degrade the picture quality. I am concerned about the low prices these things all have – this is most expensive one I’ve found. If someone has a higher-grade suggestion, I ‘m certainly open.

I’d look at the Essence Evolve II-4K at $299. It’s a strange product category. Amazon recommends a $50 Tripp Lite but the apparently identical Amazon Basics is half the price. Go figure!

I tried the Monoprice Blackbird to replace switching functionality for an AVR whose HDMI had given up the ghost but I didn’t consider that the audio extracted depended on the HDMI endpoint. I could only get stereo from the optical output with the HDMI connected to my tv. Multichannel might be possible as advertised but I found a different solution.
 
Last edited:
WaynePflughaupt

WaynePflughaupt

Audioholic Samurai
I only need stereo audio for a secondary purpose, like a wireless headphone station etc. My main concern is that the video to the TV won’t be degraded by the device.

Regards,
Wayne A. Pflughaupt
 
S

SMc

Enthusiast
I only need stereo audio for a secondary purpose, like a wireless headphone station etc. My main concern is that the video to the TV won’t be degraded by the device.
I retrieved the Blackbird from storage and can confirm it extracted stereo without noticeable degradation to the video on my old 1080 Samsung. Your use might be more demanding! I would hope any device labeled 4K would serve.
 
BMXTRIX

BMXTRIX

Audioholic Warlord
They work very well. Including the cheap ones. They do not have scalers or anything internal to manipulate the video or audio streams in any way. Most have a dip switch or dial to choose whether you want 5.1 audio for optical/coaxial output, or will have a stereo switch.

When you put these into 'STEREO', your source will see the sink device as a stereo only product. It will NOT transmit surround sound. These devices are not DSPs. They are not mixing from surround sound to stereo. They only accept PCM stereo audio to put out on the stereo connection on the unit. Stereo audio will still pass through the unit to the TV or whatever else is downstream on the HDMI, but stereo will be put out of the extractor as well.

I have switched to a system which performs a DSP downmix of surround sound to stereo, which is great in my setup, but not typical for most.

I have not seen any difference between the Crestron DA2 which is a top dollar HDMI splitter w/audio extractor and the units I've used from eBay.

I have never had a need to maintain surround sound and get stereo audio at the same time in any environment other than my home. So, my home gets the good stuff.
 
WaynePflughaupt

WaynePflughaupt

Audioholic Samurai
Thanks for the info everyone! Those Crestron units sell dirt cheap on ebay, I’ll go with that. I like the idea of something with a name brand.

Regards,
Wayne A. Pflughaupt
 
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BMXTRIX

BMXTRIX

Audioholic Warlord
Thanks for the info everyone! Those Crestron units sell dirt cheap on ebay, I’ll go with that. I like the idea of something with a name brand.
Yes, Crestron gear that is decommissioned from commercial jobs is all over eBay and even current product from them can go for a very low price. I picked up a 16x16 HDMI matrix switcher from them for my video sourcing through my home and it works great. With their newest cards it can support full 18Gb/s HDMI, but I just use it for 1080p, which looks great. I use the cards with integrated DSP downmixing, which is really a cool feature. So, I retain my surround sound for my receiver, but have a stereo mix to feed to my headphones and other areas of my home.
 

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