Recording digital input on a Mac?

Posted by: tonym on 09 August 2009

I think I've figured out a cunning and potentially good-quality means of digitising vinyl using a novel ADC which, should it prove successful, I will happily share with you folks. Should it not work I'll quietly forget about it and be very embarrassed!

Anyway, assuming I manage to generate said high-quality 24/96 digital stream and shove it up my iMac's digital optical input, how then can I best record it? Just copy it onto a file? Will the Mac realise said stream is being fed to it and kindly offer options? Audacity?

Help will be much appreciated!
Posted on: 10 August 2009 by Eloise
You'll need softare to make a recording. There are lots of options but I'll list a few here.

Apple GarageBand - part of the iLife suite so probably included with your Mac.
Audacity - open source recording software, generally considered a good first stop. Only works at up to 24/96
Wave Editor - around $80 (IIRC) but includes the excellent iZotope SRC which will improve quality if you want to down-sample the files for writing to CD.
Pure Vinyl - dedicated to copying vinyl and includes software RIAA biasing and digital click removal.

Of course upwards from here you have full pro packages such as Peak, WavLab, etc. but the three I've mentioned should be good starting points.

Eloise
Posted on: 10 August 2009 by Dev B
Gents,

Forgive me, I'm no expert...

Is it possible to connect a A to D convertor to the HDX and rip vinyl and record radio concerts etc to a NAS (when available as a HDX update of course).

regards

Dev
Posted on: 10 August 2009 by Eloise
quote:
Originally posted by Dev B:
Forgive me, I'm no expert...

Is it possible to connect a A to D convertor to the HDX and rip vinyl and record radio concerts etc to a NAS (when available as a HDX update of course).

As far as I'm aware, no. You'd have to record on a computer, then make it accessible to the HDX via network / USB stick.

Eloise
Posted on: 10 August 2009 by ferenc
quote:
Originally posted by Eloise:
quote:
Originally posted by Dev B:
Forgive me, I'm no expert...

Is it possible to connect a A to D convertor to the HDX and rip vinyl and record radio concerts etc to a NAS (when available as a HDX update of course).

As far as I'm aware, no. You'd have to record on a computer, then make it accessible to the HDX via network / USB stick.

Eloise


Or you can use a mobile recorder like Korg MR-1 or MR-1000 or dozens of others and copy from their internal storage to an usb stick.
Posted on: 11 August 2009 by Dev B
quote:
Originally posted by munch:
These posts are oh so helpful to Tonym. Eek


I thought the second post did that Confused
Posted on: 11 August 2009 by pcstockton
quote:
Originally posted by tonym:
should it prove successful, I will happily share with you folks.


Should we read into your reticence? What was your idea?

-patrick
Posted on: 11 August 2009 by tonym
OK Patrick, as the first stage of my plan is complete...

Just messing around really. I was having a general clear-out of old Hi-Fi stuff & dragged out my old Sony JA20ES Minidisk recorder. Although an obviously redundant format, the player itself is a lovely bit of kit, and I realised that if I fed it an analogue signal on a paused recording setting it would output from its digital connection in 24/96.

I've established this works by using the Mac's "Garage Band" program but this won't do 24/96. Tried Audacity but this immediately crashed every time I tried to monitor the digital input (does it only accept analogue input one wonders?)

The Pure Vinyl program only works with certain USB devices such as a Griffin iTrip.

Any other suggestions?
Posted on: 11 August 2009 by Basically Sound
quote:
Originally posted by tonym:
Tried Audacity but this immediately crashed every time I tried to monitor the digital input (does it only accept analogue input one wonders?)


Tony,
Have succesfully used Audacity with USB interface on a PC (Vinyl > Project USB Phonobox > PC+Audacity) for vinyl>CD transfer. Audacity itself worked reasonably well in this config, but haven't used it for some time, so can't help on the 24/96 element of your post.
Hope this helps.
Tony @ Basically S&V
Posted on: 11 August 2009 by pcstockton
Tony,

Exciting! 24/96 is the ONLY way my friend. Don't bother with anything else as long as you are going through the effort.

The cool thing about ripping your vinyl is that you can do it on first listen when it is pristine. Then forget about the rip and enjoy the record until it deteriorates.

Plus you can transcode the 24/96 files to MP3 and enjoy your vinyl rips on the go.

wavelab5, for PC though.... I cant help on a Mac, sorry.

Have a blast!
patrick
Posted on: 12 August 2009 by Eloise
quote:
Originally posted by tonym:
I've established this works by using the Mac's "Garage Band" program but this won't do 24/96. Tried Audacity but this immediately crashed every time I tried to monitor the digital input (does it only accept analogue input one wonders?)

The Pure Vinyl program only works with certain USB devices such as a Griffin iTrip.

Any other suggestions?

How about Wave Editor - IIRC it's just under $80 and there is a free trial version.

Eloise

PS. to quote from Pure Vinyl's website ... If our hardware suggestions don't suit you, Pure Vinyl isn't tied to any particular Macintosh computer model or ADC / DAC / audio interface, so you're free to assemble a playback system that fits your preferences and budget. ... so should work with your ADC and internal optical connection. Their recommended hardware doesn't include the Griffin iTrip at all so think maybe you are looking at the wrong software.
Posted on: 12 August 2009 by tonym
OK, managed to get this working. I downloaded the latest Beta version of Audacity & that works fine.

The results are pretty good, but I somehow suspect not as good as they should be. It'd be nice to be able to read the sampling rate that's coming in. Audacity is recording it at 24/96.

Anyway, quite easy now it's up & running. Thanks for the help folks!
Posted on: 12 August 2009 by garyi
Try making sure you are outputting the same though. This can be found in audio midi set up in the utilities folder. If you are outputting a different rate then it will be resampled.
Posted on: 12 August 2009 by PMR
Guys, if using a MAC this is the program you need. Toast

Peter
Posted on: 12 August 2009 by pcstockton
No you dont PMR....
Posted on: 13 August 2009 by PMR
... and why not?
Posted on: 13 August 2009 by pcstockton
You do not need Toast. As simple as that... That's all.
Posted on: 13 August 2009 by PMR
Hmm, it would be useful to know more of you opinion?

I would suggest people use Toast. It's a decent piece of software that will not give you grief. It'll rip anything without hassle. And more importantly, if ripping vinyl, it can look-up and automatically tagged your music. It's by far the best piece of vinyl ripping software I have found for the MAC.
Posted on: 13 August 2009 by pcstockton
PMR, it is not an opinion. It is a mere statement of fact. I was simply saying it is not necessary, thats all. Maybe I took too much logic in college.