OREI 4K HDMI Audio Decoder Extractor, Downmix Audio Decoding DTS to Analog 3.5mm Jack Support Headphone/Speaker L/R Outputs or Optical SPDIF (HDA-913)

This works perfectly. I connect my Roku to this, then this to an APTX latency transmitter via RCA jacks and my stereo receiver via HDMI. All of the audio goes to my 5.1 system and stereo goes to my wireless headset.

I picked this up because my wife suffers from hearing loss and uses wireless headphones to watch TV and movies. Sadly, our Avantree headphones require stereo PCM audio and will not downmix an Atmos or Dolby 5.1 signal. Bummer. Without a device like the OREI Decoder no one can enjoy the full advantage of our home theater when my wife uses her headphones. Everything is presented in stereo. The OREI allows us to split the incoming audio signal and route multi-channel bitstream to the home theater and stereo PCM via the RCA connections to the Avantree headphones. The unit works flawlessly (at least so far). It's small. Well built. And trouble free. I knocked off a star because the OREI seems a bit expensive for what it is. But if you're will to pay the freight, highly recommended.

Was able to use this device to connect up our AppleTV box, TV and our older in-ceiling speakers. So far, so good. Used another brand twice. The product died after a couple of weeks of use-twice. Just installed this one, hoping it lasts.

As of writing this the product descriptions are “The HDA-913 Audio Extractor with Audio Downmix can extract audio signals from any HDMI compliant source to digital optical or analog stereo L/R audio outputs” “Decodes Dolby to high-quality stereo 3.5 mm audio output” And in the specifications “Dolby Atmos” is listed as supported. There is even another reviewing entirely implying that it solved their issue of Dolby Atmos downmixing. BUT WHAT DO YOU KNOW after it not working for me and contacting the company, they replied and it simply does not downmixing Dolby Atmos. There is no clarity about what downmixing it actually supports, leaving to assume based on the listed supported audio formats. Who knows what downmixing is really supports and if it’s only PCM multi channel then that’s pretty useless.

Despite the Amazon product description saying that it supports "Dolby Digital+" I could not get that to downmix and OREI tech support finally confirmed this by stating "the HDA-913 only supports downmixing Dolby AC3 5.1 / TrueHD 5.1 to PCM 2.0 for output through the L/R channels". Thus I don't believe it will support more than 5.1 audio. My use case was to split the audio from the eARC cable from a Samsung smart TV to Sonos ARC soundbar using their HDA-929 audio extractor, then downmix its DD+ output to analog with the HDA-913. From there I intended to connect my hearing aid TV Connector (Bluetooth transmitter). This would have allowed me to have stereo audio direct to my aids while the soundbar continued to perform normally (Dolby Digital+, Atmos, etc.), i.e. I would not have to switch the TV settings to send PCM and compromise the audio to the soundbar for other listener(s). I will say that OREI tech support was very polite and responsive over email. Their communication was clear and I would get responses overnight. Unfortuately, it took a lot of testing by me to gather information for them and I think it took them far too long to understand that my problem was due to a technical limitation of their device, contrary to their inaccurate product description. Our email thread started November 20th and ended January 7th. The only affordable solution I've found to my requirements is to use an old Yamaha receiver to process the DD+ signal from the HDA-929, render it to analog stereo for speakers, and use that to drive my TV Connector. Overkill and bulky, but it works.

Through an abundance of laziness, I clustered all of my entertainment together in the same corner. I have all 7 of my gaming consoles, two PCs, a Raspberry Pi, and a Roku in the same spot. I also have four monitors for these devices. Each monitor has a designated purpose at the end of an HDMI switch, and each one has a headphone jack. My plan was to connect all of these jacks to an aux switch. Problem is, I was not thinking very hard about varying audio quality from the drivers in each of these monitors. Two are barely audible and the other two are really loud, which necessitates fiddling with volume every time I switch devices. This audio extractor sidesteps the problem I created for myself. Without having to rely on what comes out of my monitor's headphone jack, I should get exactly what's coming out of the source device and have far more normalized volume, without loss of video quality. Results for monitor performance are the same before and after the audio extractor was set up. 60 fps at 60 Hz on 1920x1080, with no perceivable loss of video performance. eizo.be and testufo.com were used to test these details, as well as some gaming overlays. As for what it was advertised to do, the unit does it well. It has also remained cool to the touch while operating, while most similar devices will warm slightly. My complaints are varied and minor. The first is that it is specifically advertised as a downmixer for 3.5mm aux from HDMI digital. Looking at the product images, one can easily tell there is no 3.5mm aux jack on this device. Purchasing an RCA to 3.5mm cord is required. I'm also not fond of the wall wart power supply. It's rated for 5V 1A output that could be supplied from any USB port. I keep a load of IBERLS DC to USB cords on hand (Amazon ID B07J6NQ1KN) just for these types of electronics, as well as a collection of outlet savers (or "pigtails") because these oxy adapters soak up adjacent power sockets. In my particular case, I have no power sockets for this downmixer available, but no less than 8 available USB ports. I used an IBERLS cable and the device works fine. My biggest complaint -- as minor as it is -- is the "in one side and out the other" cable design that small electronics like this seem to have. You end up with cords coming out every which way and it's extremely difficult to cable manage the thing, which completely eliminates its advertised "small footprint" feature. The device has a minimum of a six inch footprint when all the cables are connected to it, and that's making a huge assumption that you can bend the HDMI cables at 90 degrees right at the boot. Realistically, it could take up as much as a foot of space in the one dimension. I would gladly take a 6 x 2.5 x 0.75 inch unit if it meant that all the cabling ports were on the same panel. Heck, make the unit twice as thick and stack all the ports on top of each other like Raspberry Pi USB ports, and I'd still be happier with it. Ultimately though, my use case is very light duty at 1080p 60Hz and does not breach into 4K, ATMOS, 120Hz, or any of the other highfalutin stuff it is advertised to support. It downmixes HDMI audio very well but has presented a cable management challenge. I don't believe any of its downsides are significant enough to lose an entire rating star, and I would call it a 4.5 star item.

Bottom-line: The OREI HDMI "downmixer" device solves my problem perfectly when matched with premium grade cables. Good customer service too! I bought this device to solve a specific problem: to feed a "downmixed" stereo audio signal to my hearing aids while allowing everyone else in the room to hear multi-channel surround sound audio (such as Dolby Digital or Atmos) through our home theatre speakers. This is a job that _should_ be done by all home theatre receivers but unfortunately not all (very few?) receivers do this, not even the more expensive ones (I'm looking at you Onkyo). It is reasonably simple: while sending multi-channel audio through the amplifiers to the speakers, please also make available a "downmixed" stereo signal to a pair of RCA output jacks so it can be sent it to an external device such as a hearing aid connector. In my case, I have a Phonak TV Connector which takes a stereo audio input and transmits it wirelessly to my hearing aids so I can better understand the sound track of TV shows, DVDs and movies. The frustration is that my receiver (and I gather many others) doesn't include a "downmixer". The key is "downmixer. It is an extra piece of hardware that processes the multi-channel audio to produce a 2 channel output while continuing to pass through the multi-channel audio signal to the main amplifiers and speakers. The OREI HDA-913 HDMI audio extractor is a bona fide downmixer. By inserting it between my streaming box and my receiver, it passes through the HDMI multi-channel audio while extracting and downmixing the audio to a pair of RCA jacks. BEWARE: Many audio extractors do not include a downmixer. They will not produce a stereo output unless the input source is also stereo. If the specifications do not explicitly say "downmixer", then it probably isn't a downmixer. Generally, these models are significantly less expensive. If you need the downmixing feature, expect to pay for the extra bit of hardware to do it. NOTE: Be sure to use HDMI connecting cables that are capable of handling the data rate required for your content. The OREI HDA-913 can pass 4K @ 60 Hz. If your input source is 4K @ 60 Hz then you will need 18 Gbps certified HDMI cables, also known as "Premium High Speed HDMI" cables. These can handle up to 4K @ 60 Hz (HDR, 4:4:4). Unmarked, or "Standard" or even "High Speed (category 2)" HDMI cables won't handle 4K @ 60 Hz. For instance, Amazon Prime Video outputs 4K @ 60 Hz for at least some shows. Under-rated cables will eventually fail to keep up and the HDMI output might not work at all or it might blank out periodically, especially with the overhead of HDCP. I had this exact problem with under-rated cables. OREI customer service was very supportive in helping identify, isolate and resolve the issue. Solution: I bought 8K certified cables and the system works perfectly and is future-proofed.

This did not downmix anything from dolby 5.1 or DTS 5.1 to stereo.