View Full Version : USB-Serial converter for MIDI interface (OMS studio4)

03-20-2003, 12:48 PM
Instead of upgrading my PTP to a G4, I just took the plunge and got a G4 desktop (DA). The problem is that my MIDI interface is serial, and I'd like to continue using it with the new computer. Unless Yamaha's mLan takes off (MIDI over firewire), it seems I'm stuck with some sort of USB solution. I use a Core2 for audio which doesn't have MIDI i/o, and I won't have a PCI slot available for a Romulus/Remus serial port card. So my big questions are: does anyone know of a USB to Serial converter that may work, and would OMS or FreeMIDI still recognize it as a Studio4? Thanks.

03-20-2003, 02:27 PM
One solution here http://www.griffintechnology.com/products/gport/compatibility.html the g4Port but you lose your internal modem. I removed the cover on my QS G4's internal modem once just to see what's inside. Big mistake, so much packed in there that I had difficulty getting the cover back on.

Another possibility, http://www.usbcable.com/item14.htm

Hopefully someone will post who has tried something. k

03-20-2003, 07:53 PM
Well, Tascam introduced this (http://www.tascam.com/press/news/2003_03/1_122.html) @ Musikmesse this year. Not horribly expensive. They also have the US-224 (http://www.tascam.com/products/product_information.php?product_id=12) and it's big brother the US-428 (http://www.tascam.com/products/product_information.php?product_id=13), but there's a lot of cheaper MIDI interfaces that can be had (via USB mostly) from your local (or favorite online) music dealer, or even on ebay.

I know that's probably not what you want to hear, but you could also use your old mac strictly for a slave s/ware (&/or hardware) sequencer/MIDI instrument.

There's no use, NOT using it IMHO.

Good Luck


"I made a conscience decision in a semi-conscious state"

03-20-2003, 07:58 PM
I just spotted two models of USB->MacSerial adaptors at the store, these by Keyspan. A quicky web search for 'USB Serial Macintosh' also reports that Belkin apparently makes 'em, too.


03-20-2003, 11:39 PM
I won't be using the modem, so I'm going to try the g4port. It seems the most compatible and I usually like Griffin stuff so we'll see what happens. Thanks again all.

03-24-2003, 05:45 AM

I would like to know if the g4Port (by Griffin) is being used by any of you. I have a G4-400 AGP (Sawtooth) and would like to make a smooth transition with my synth (Alesis QS7) from my old 7300.

1. Is the g4Port an easy install?
2. Anybody have any driver problems with the g4Port?
3. Any reason my current MIDI to Serial inteface (Opcode MIDI Translator) will not work?

At basically the same price as a USB interface, it seems like the griffin g4Port is a no brainer, assuming it works. And seeing as how I have DSL (and no need for the internal modem) I like the idea of turning that (otherwise wasted) port into a dedicated port for my synth. I look forward to your responses!


04-17-2003, 04:12 PM
Well, the G4port works beautifully. Goodbye modem, and I was up and running in no time. I installed the port drivers, then FreeMIDI, and it immediately saw the port and then loaded the nessesary files for the Studio4 and all is well. It couldn't have been easier. Neato.

04-17-2003, 04:32 PM
...watch out that OS X 10.2.5 doesn't 'bite' that Griffin adapter!

04-17-2003, 06:20 PM
I use mostly 9.2.2, and X is 10.2.4, but just out of curiosity what's the problem with 10.2.5?

04-18-2003, 09:53 AM
"...what's the problem with 10.2.5"

You've been under a rock sleeping http://macgurus.com/infopop/emoticons/icon_smile.gif

See: http://docs.info.apple.com/article.html?artnum=25440

There have been messages on all the major Mac news sites and bbs's.

[This message has been edited by Gregory (edited 18 April 2003).]

04-18-2003, 08:44 PM
www.macnn.com (http://www.macnn.com) has a link to an Apple USB kit on the developer pages that can be used to install an IOKit USBFamily driver that will probably fix what 10.2.5 broke. At least Apple admits there is a problem.

Others are saying it feels like the RAM trouble years ago, new firmware, but really, it was bad SDRAM that was the trouble in the first place, so too, some USB hardware isn't what it should be, and if that price is too good to be true, it is!