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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: RTID75 on July 09, 2020, 08:20:05 PM

Title: Amiga / CDDA audio mixer
Post by: RTID75 on July 09, 2020, 08:20:05 PM: Does anyone know if / where I can buy an Amiga / CDDA audio mixer? I've looked, but they appear not to exist any more. :(

I have one, but it appears it's broken as I only get audio from one output now.

I suppose the one I have could be fixed if necessary, but it looks fiddly and I'd rather buy new.
Title: Re: Amiga / CDDA audio mixer
Post by: giZmo350 on July 09, 2020, 08:31:37 PM: I keep meaning to pick up an ART MacroMIX Personal Mixer as they're very popular but kind of pricey.... ::)

https://www.ebay.com/sch/i.html?_from=R40&_nkw=ART+MacroMIX+Personal+Mixer&_sacat=0&_sop=16&rt=nc&LH_PrefLoc=1

Also, here's an eBay link to a passive mixer, which might perform just perfect for you needs! ;D

https://www.ebay.com/sch/i.html?_from=R40&_nkw=Rolls+MX42&_sacat=0&_sop=15
Title: Re: Amiga / CDDA audio mixer
Post by: RTID75 on July 10, 2020, 08:04:58 AM: Yes, I had seen that kind of thing when I've been searching, but it's not really what I had in mind.

What I have is a lot simpler. Phono leads that plug into the Amiga outputs, a lead that ends in the CDDA plug to go straight into the back of an optical drive and two phono out ports, all attached to a metal plate. It was sold by Eyetech back in the day. I'm sure they actually used to manufacture them as it's effective, but simple (and ugly!).

I suspect I might have to take it out and try to fix it.
Title: Re: Amiga / CDDA audio mixer
Post by: TribbleSmasher on July 10, 2020, 04:23:48 PM: I've got a small card with a slot bracket laying around with a passive mixing circuit like this, or something similar.
https://www.instructables.com/id/Making-an-Audio-Mixer/
There is no amplification, but it will do its job and is easy to build.
Title: Re: Amiga / CDDA audio mixer
Post by: zipper on July 10, 2020, 04:48:36 PM: The Eyetech thingy had pots to adjust the sound level difference which exists between Amiga and CD audio.
Title: Re: Amiga / CDDA audio mixer
Post by: ToddH on July 10, 2020, 05:08:33 PM: I looked and looked for exactly what you are looking for for my Checkmate case but never had any luck. I know they used to make such a device as it's still listed on Amigakit's website but hasn't been in stock for a long time.

https://amigakit.amiga.store/product_info.php?products_id=485

You could possibly post on Amibay what you are looking for and someone may be willing to part with theirs.

I ended up just making a custom cable to run from my DVD drive to the back of my case and used this mixer to mix them together.

https://www.amazon.com/gp/product/B00102ZN40

Works like a charm.
Title: Re: Amiga / CDDA audio mixer
Post by: zipper on July 10, 2020, 08:40:34 PM: Eyetech thingy:
Title: Re: Amiga / CDDA audio mixer
Post by: RTID75 on July 11, 2020, 10:04:41 AM: Quote from: zipper on July 10, 2020, 08:40:34 PM
Eyetech thingy:

Yep, that's exactly the one I have. I think I'll take it out and see if I can fix it first. It'll be fun - hot glued into my tower!
Title: Re: Amiga / CDDA audio mixer
Post by: RTID75 on December 20, 2020, 01:00:12 AM: Finally removed and had a look at the Eyetech adapter. One of the potentiometers had come slightly apart, so I clicked it back together. Whether that might have had any bearing on the situation, I don't know.

The adapter has two CDDA leads built in and used to work fine connected to two optical drives. Now if I connect one drive all is well, but if I connect both then I lose the vast majority of the audio from the left channel.

I don't suppose it's a huge problem - I'll leave one CDDA cable unplugged and I'll just have to remember to run games / other things that need CD audio as well as Amiga audio from the optical drive that the adaptor is plugged into.