A600GS Updates

[Pyromania]

@AmigaKit

How about a slightly updated Aladdin4D for the next release of the A600GS? I get customers asking what happened to it more often than I expected. Would be nice to see it available again.

[FOL]

Originally Posted by alexh

It's highly likely that your HDMI video capture card doesn't meet the HDMI spec (or conversely perhaps the A600GS doesn't either?).

What make/model is your capture card? Have you tried every capture option?

Plug the A600GS directly into your PC display to assist diagnosis.

The fact that you're the first to report such issues I'd suggest either your A600GS is faulty or possibly incompatible with your capture card.

[UPDATE: Other users have said that sound is choppy with their display]

FYI this isn't the support channel, if you want active support you have to use https://forum.amiga.org/a600gs

Hmmmm, wonder what the frame rate is. Only time I had stuttering is when it got stuck in a wierd state and FPS fropped to 30 on everything.


As for capture, I bough an el cheapo, as others said it worked fine. On all my devices, sound cuts in and out every second.

[PeterK]

I've no A600GS to check that, but please consider that a cheap crappy power supply could also cause a lot of unexpected problems whenever the voltage drops down a bit every millisecond or so while a higher load is required. These cheap power supplies may still work good enough for charging batteries in smartphones, tablets or notebooks, because their batteries will always buffer the voltage level and compensate short drop downs, and charging a battery may also work with a sequence of interrupted smaller energy packages instead of a constant voltage and current loading them continuously.

But if a crappy power supply is connected without a battery or a large capacitor to a circuit board as in the A600GS for getting a constant voltage level then you may have some side effects like noise on the audio output caused by the voltage drop downs every few milliseconds. I don't know whether this really happens, but I would recommend to try out a better power supply. A bad power supply with an unstable voltage could even damage some of the circuits on the board by the time.

[alexh]

Some sort of ground loop?

[FOL]

Originally Posted by PeterK

I've no A600GS to check that, but please consider that a cheap crappy power supply could also cause a lot of unexpected problems whenever the voltage drops down a bit every millisecond or so while a higher load is required. These cheap power supplies may still work good enough for charging batteries in smartphones, tablets or notebooks, because their batteries will always buffer the voltage level and compensate short drop downs, and charging a battery may also work with a sequence of interrupted smaller energy packages instead of a constant voltage and current loading them continuously.

But if a crappy power supply is connected without a battery or a large capacitor to a circuit board as in the A600GS for getting a constant voltage level then you may have some side effects like noise on the audio output caused by the voltage drop downs every few milliseconds. I don't know whether this really happens, but I would recommend to try out a better power supply. A bad power supply with an unstable voltage could even damage some of the circuits on the board by the time.

I have tested with 0.5 Amp (TV USB), 45W, 65W and my usual PSU 100W (all of which supply 3 Amp).
None of these ever displayed sound issues. Only time I had stuttering, it was as I described in previous post. Plus dropping in and out, was only when using Capture card.

Side note, think we are drifting off topic again, .

[spannernick]

I use a 5v 3a power supply, I know now its my capture card doing it, but I can power it too via my PC and a USB Port and does the same so its the capture card, it can not handle some HDMI signals, like on the CHA too it does the same.

[spannernick]

Just had a idea, convert the HDMI Audio signal to RCA Analog then convert the RCA Analog signal back to HDMI Audio, might fix the audio problem then... I can use the HDMI Output (Loop) port on the capture card to split its audio...

Or covert HDMI Audio into RCA Analog then connect the audio (RCA plugs) to the PCs line in plug instead and then tell OBS to use the line in instead for the sound from the A600 GS...
Just need to make sure the audio is coming from the A600 GS and not through the Capture Card.

You could use the headphone jack at the back of the A600 GS and plug that into the line in plug on the PC instead but when I tried it, audio was only coming out of HDMI and not the plug on the back of A600 GS so could not get it to work.

mmm... Bluetooth sound is interesting, that might be a way but I need a Bluetooth speaker and I do not have one, I have Bluetooth on my PC I wounder if I could use the PC like a Bluetooth Speaker.

I can not use my headphones with the jack plug that on the back of the A600 GS, my headphones work in my PS5 controller, the headphones work on my Mobile Phone too, it has a mic so has 4 connectors on its plug so does not fit the jack plug on the back of the A600 GS, thats a 3 connector plug only so you can only use normal headphones with it, shame you never added a 4 connector jack instead, a 4 connector jack is uses on the Raspberry PI too, I thought... `why is it not going in` weird, then realised why..

[alexh]

Originally Posted by spannernick

then convert the Composite audio signal back to HDMI Audio, might fix the audio problem then...

?? Digitise analog audio to PCM and then inject it back into a HDMI stream? You're going to have all sorts of latency / sync issues not to mention you need quite a complex SoC / FPGA to do such a thing.

Just turn off A600GS HDMI audio and plug in a 3.5mm analog audio cable between A600GS and PC sound card "Line In".

Use your PC software to select different audio source.

Job done.

[FOL]

Originally Posted by spannernick

Just had a idea, convert the HDMI Audio signal to Composite audio then convert the Composite audio signal back to HDMI Audio, might fix the audio problem then... I can use the HDMI Output (Loop) port on the capture card to split its audio...

Or covert HDMI Audio into Composite Audio then connect the audio (RCA plugs) to the PCs line in plug instead and then tell OBS to use the line in instead for the sound from the A600 GS...
Just need to make sure the audio is coming from the A600 GS and not through the Capture Card.

You could use the headphone jack at the back of the A600 GS and plug that into the line in plug on the PC instead but when I tried it audio was only coming out of HDMI and not the plug on the back of A600 GS so could not get it to work.

You tried not capturing audio with video and selecting it seperate. Add new device and select audio capture. Get audio that way. I have to wait til I get home to test if it works.

Originally Posted by alexh

?? Digitise analog audio to PCM and then inject it back into a HDMI stream? You're going to have all sorts of latency / sync issues not to mention you need quite a complex SoC / FPGA to do such a thing.

Encoders are available, however they are expensive. I did find one for £90, but can't justify spending that, just to convert analog to HDMI. Maybe when flame thrower arrives.

[spannernick]

Oh just remembered something...

When I plugged the A600 GS into my TV it had no resolution in the display settings in the menu so it was greyed out and A600 GS was on RES 1024x768.

I thought I get a pic of my TV's model number if it helps..

Its this one... https://www.manualslib.com/manual/65...-L42vk04u.html

The date on the Manuel says 31.05.2011 when it was made, so I bought it bran new then, I only change my TV if it brakes down so it has not ...yet... my PC is 11 years old (2013)... but I built it, cheaper that way.

[spannernick]

Originally Posted by alexh

No such thing as "composite audio". Do you mean stereo analog audio? The A600GS already has a separate stereo analog audio output.

Fixed it, changed it to RCA Analog..

[alexh]

Originally Posted by spannernick

Fixed it, changed it to RCA Analog..

Still no need for any of it. The A600GS has a 3.5mm stereo analog audio output jack.

All you need is the right cable and you should be able to feed audio into your PC through the sound card.

Some TVs and monitors support Audio in via 3.5mm analog and video via HDMI.

[spannernick]

My idea worked so now sound is working OK now, no chopping, plays like normal now through line in...

[Pyromania]

A600GS is looking exciting for its low price. Just a few growing pains. Cybertruck has growing pains too since it’s also a new product.

[TCD]

Originally Posted by Pyromania

A600GS is looking exciting for its low price. Just a few growing pains. Cybertruck has growing pains too since it’s also a new product.

I'm not so sure that was the best possible endorsement

[FOL]

Originally Posted by Pyromania

A600GS is looking exciting for its low price. Just a few growing pains. Cybertruck has growing pains too since it’s also a new product.

You do realise, he is talking about Video Capture card and not GS.

[spannernick]

Just to make it clear, its the `Digital Audio Interface (USB Digital Audio) Device` that is part of the `USB HDMI Video Capture with Loop` Capture Card, its own interface that capture the audio from HDMI from the A600 GS so not the A600 GS doing it, its because it can not handle it audio, do not know why, but it can be fixed, it does the same thing with my CHA (Capcom Home Arcade), I think its a Orange PI thing and way its HDMI audio is made so the audio device in the capture card can not convert it property so its choppy sound coming from it, shudders in and out every second, it does use a driver that made by Microsoft so it probably down to its driver.

Digital Audio Interface (USB Digital Audio) Device.
Its description is - Audio Endpoint
Its hardware ID is - MMDEVAPI\AudioEndpoints.
and its in Device Manager under - Audio inputs and outputs, see pic.





How to Fix
========

Just connect the Audio Jack on the back of the A600 GS to Line in on your PC then select it in OBS, I did it but use the HDMI output on the Capture Card instead so its loop and connected to a Mini HDMI2AV and then connect its RCA cables Left and Right Audio to line in and now the audio works fine, I did it this way because I did it before when I connected it via composite using a Easycap (Easy Capture USB Card for Composite only), it was before I got the HDMI Capture Card so had the stuff for it already.

[amigakit.com]

Our Time Prefs program has been added to AmiBench on the A600GS. This will be released as part of a free downloadable update in the coming days. You may notice that it uses a few extended Classes and Gadgets that are part of SystemV46.

[lesta_smsc]

Sorry, I've been away and so missed out on a lot of this thread so wanted to know if there is any WIP/planned for these features for the A600GS please:

1) Netplay - link up to another A600GS for network gaming

2) Output via CVBS to CRT (the Orange Pi Zero 3 has pin out for this)

3) Bundling with keyboard and mouse

[amigakit.com]

@lesta_smsc

We have plans for internet linked Amiga games on our roadmap

We will investigate the Composite output.

A mouse/keyboard bundle will be coming in future.