[012] EZCAP 283S HDMI Capture Box - Review, Teardown and Experiments 

+kieferonline I would once have said the same thing. It's not so hard when you know how: Watch video [002] for info on driver writing, read "USB in a nutshell", watch the usbmon section of video [005] for how to reverse engineer the protocol, and then look at how other USB kernel drivers work by browsing the kernel source code - most drivers are only a few hundred lines of code. Then you have to get your code upstream which takes quite some patience, but it's completely doable if you want to take the time doing it

Thanks for watching! I found out that the correct volume for my microphone was the maximum -so no need for any nail polish!

+Jim Wiley Thanks for the encouragement. Glad you're enjoying the content. I'm working a big video for release in a couple of weeks. If it's ready in time I'll submit to eevblog. It would be rather cool to have a spot on senpai's channel.

+Jim Wiley ... Check out eevblog at 8AM Sydney time!

+OpenTechLab happy for you man! I'll be sure to check it out at a reasonable UK hour (whatever it works out to be!)

Did you see the setup guide? Some of the steps are a little non-obvious. Hopefully you get it working: www.ezcap.com/upfile/support/Operation%20Manual%20of%20OBS.pdf

Yes I followed the guide, but I have a red rectangle instead of the video on OBS, here is a screenshot: zupimages.net/up/17/46/ah8a.jpg

Weird. I never saw anything like that. If you find the answer, please let us know.

I mean record to usb and pc at the same time. and can work with vmix?

Their ability to build things down to a price always blows me away. My mindset would prevent me from ever achieving such low costs - arguably a superior quality in an engineer.

Seriously though, Rigol is a chinese company and look at their scopes, some of the best on the new low end market

I love my Rigol scope, and it shows that Chinese guys can produce quality products when they put in the time. They can also make a cellular camera-phone for $9.99 delivered: bit.ly/2yjFroi

BTW about rigol, i'm surprised that there is not good driver for 1000z series for sigrok (pulseview), there is just universal driver which was made for 1052e and with this you can't get data from memory, i was looking for better driver and found this github.com/3s1d/libsigrok-dev unfortunately it's obsolete and can't compile anymore with new sigrok/pulseview. I'm not good enought in programming to modify it so i still hope someone would revive that project...

Part of the issue is that PulseView and libsigrokdecode have typically had incomplete support for scopes - that is now improving, but there were issues to solve first. Certainly everyone wants to have the 1000Zs working, but no-one made time to do it yet.

+mikeselectricstuff Indeed, but as it's marked "confidential", I'd like to maintain their trust. Believe me you're not missing much.

OpenTechLab a company who volontary obscure their work dose not deserve your trust. And they stopped talking to you anyway.

@mikeselectricstuff... *In many European jurisdictions, documents marked confidential, can be seen to constitute a contract of privacy, whereupon you grant consent to be contractually bound, just by reading it.* *Often, but not always, this is codified in the opening paragraphs or header... Something along the lines of,* _If you do not agree, you must stop reading and return the document; continuing implies contractual consent_ *etc etc.* *I believe contract law in the UK is similar to this... Don't quote me, though, I'm not a **-bastard blood sucking twat-** lawyer.*

Background: im passionate about filming local bands as a freelance film maker. For the last few years ive been looking to livestream from my Nikon 1 J1 using 1970s bolex lens via c-mount ring. My plan is to use one of these cloneralliance boxes... I aim to use bluetooth tx/rx to send sound desk audio to my backpack unit containing the cloner interface and power supply and combine it with the camera audio.. Hopefully mixed easily to preference the desk sound direct to bluetooth tx or via Tascam Dr40 monitoring output to bt tx. The flint can connect to cloneralliance app and stream from android but the evolve can instead save a backup copy to usb or tf micro for band members realtime. Im most worried about how the flint is powered as unlike the evolve there seems to be no dedicated power and I'm unsure what it will be draining. If using android the connector takes up the charging port. I have a 5v mini pc (Gole 1) running win10 or android. But the flint uses usb 3.0 which the mini pc has... So thats another bonus, I would be thinking about getting both or the flint and some capture solution with 4k through if I upgrade to a sony alpha 7sii sometime. I am really curious and focused on what the audio quality will be like and what sync issues I will have even though live streaming removes quality anyway. Thoughts? I'm an art student so this is a budget build as always.

Oh.. My Nikon 1 J1. I removed the lithium cells making up 7.4v and inserted a potentiometer chip ramping via usb micro input from 5v power supply. To use the battery contacts I barbarically wired this to the battery chip also in hopes it might circumvent any issues by pretending to be an en_el20 battery. So my backpack will have a power solution with several usb power outputs for camera, mini pc, bluetooth receiver if needed, cloner if needed. Thanks

USB 2.0 Mini cable

Doh - turn on subtitles and it is easy to see.

+David Pilling Perhaps k-d-e-n-live is the correct pronunciation, but kay-den-live rolls off the tongue so nicely.

Wow never looked at the subtitles before. They're not at all bad. I like the way it calls libsigrokdecode "lib cigarette decode"

Yeah it's a bit janky. I've submitted some patches. It could be better, but it does work.

Am I allowed to post external links here? hdmi2usb.tv/home/

I could believe that. Nothing from the Chinese wild-west surprises me. Though ITE have quite a reputable brand. IIRC one of my PCs has an ITE SuperIO in it.

OpenTechLab I'm wondering if they sometimes laser the part numbers off the chips if maybe the date codes are old ("new-old stock"), or possibly using something that would normally require a license agreement? I've never really understood why they often wipe the part numbers in China though, as it rarely takes that long to reverse engineer most stuff anyway, or find datasheets etc. The two clock oscillators on the IT9910 will likely be for USB 2.0 and the core (12 MHz), and the 27 MHz for video. 27 MHz is a multiple of the most common digital video standards. So, 13.5M for 240p / 480i, 27M for 480p, 74.25M for 720p, and 148.5M for 1080p. ;) (usually around 29.97 fps, but I think some of the 25 fps "PAL" modes also use a multiple of 27 MHz for the pixel clock?)

I know this is a cheap device btw, but it looks like it works well, so it's a shame they used an old-skool HD44780 LCD instead of a larger graphical LCD or even a small OLED. They would then have been able to show things like the mic input level etc., and I doubt it would have cost any more to build. The old ubiquitous LCD modules are handy, but the newer graphical displays are also dirt cheap now.

Being able to easily decode I2S audio from the LA captures is VERY useful. It would be amazing if that could be integrated into the sigrok GUI, where you just click one button after highlighting a range of samples, then it renders the audio waveform on the same timeline. Even better if a decoder could be added for some video formats too, but it might only be practical on the cheaper LAs to capture some low-bitrate video streams. Congrats on the EEVblog thing btw. I was already subbed to your channel, but it's always good to see the more in-depth stuff get more exposure. ;)

How to take anything you say seriously when you ask wright?