[Marian] sent in his sweet little Mic preamp that he built for his iPod touch. He built the circuit on the legs of a TLC272 OP-Amp with SMD components. The whole thing actually fits inside the cover of a standard iPod dock connector.
Bonus: [tnkgrl] added a USB bluetooth adapter to her eeePC after her circuit tracing efforts.
this is the most simple, useful, and cool looking ipod accessory i have ever seen.
Posted at 1:41 am on Nov 29th, 2007 by kaelb
surface mount the op-amp and it’ll fit easier than cake. If you’re up for some uber-miniaturization, pick out some of those TINY opamps maxim has (I think they’re on the scale of those SOT transistor packages). Since it’s only one channel, this makes it even easier–I’d imagine with some really tiny passives (0201/0402 anyone?). Of course, the soldering gets even more difficult. I’d imagine you could fit this whole thing under the microphone–maybe if you’re really, really, really up to the challenge you could fit the whole thing under the mic and encapsulate it with some epoxy for an ultra-miniature amplified mic.
Posted at 3:01 am on Nov 29th, 2007 by threepointone
you get FAR better recording with a battery box than with a preamp.
Allowing that microphone to swing a full 9 volts instead of the paltry voltage a ipod gives it always sounds better.
too bad the ipod wont record good. Gotta love my iriver that allows stereo 48khz at 384kbps mp3 recording with manual level control. Kicks the crud out of any ipod.
Posted at 9:16 am on Nov 29th, 2007 by fartface
>>> is it anything different to the plug-in mics you could get for the older ipods?
The commercial mic plugs are “signed” and communicate with the iPod. in case they were not licensed to a given iPod generation, the iPod says “not supported”. however, this design is pure analog, and is compatible with all iPods with LineIn pins.
Its not to record crap its for Voip…u can use the i touch like the iphone thanks to him now, if u hav an i touch use sum voip software and ur making calls..pretty sweet gotta get the plans for that to do to mine.
Posted at 12:03 am on Dec 3rd, 2007 by T-Dog
I got the $25 Walmart ipod iVoice to work with vnotes which means the touch will work with voip when it comes out 1-1-08. The mod to the unit is not too hard. U4 is a Max9812 like the one the mic project boys have been working on. The ’secret’ is to remove R24 (a 0 ohm) resister near the very edge of the board. One side is connected to pin 1 of U4. That is the amp chip enable pin. The pin is low via other hardware on the board.
Now wire from where the R24 U4 was to one side of the LED. That will put 3.3 VDC on pin 1 of U4 turning it ON ! Now the mic amp is on and working.
The beauty of all this is the mic is available at Walmart for $25 and it has a line in plug to boot !
I hope this helps further the voip project by making the mic available nearly everywhere.
Earl
http://macally.com
It is the iVoice III
Hi i am from the UK and the ipod touch is now in full swing over here. i would like to make some of these for the UK. where do I get the parts from?
Posted at 4:56 pm on Feb 17th, 2008 by Andrew Goldie
cool
Posted at 5:22 am on Sep 19th, 2008 by hacker 711[COLLIN SHEEHAN ]
Where is the sim card dock??? It’s not phone!
Posted at 3:24 am on Dec 28th, 2008 by zsolt12346
Hi, I am from Hungary. I would like to buy ipod touch for myself. Where can I do that in the uk?
Posted at 9:21 am on Apr 6th, 2009 by Chip Tuning
At last a blog with the information I needed thank you.
Posted at 3:42 am on Jun 7th, 2009 by freeipodtouch
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What’s the point of this? I don’t have an ipod touch – is it anything different to the plug-in mics you could get for the older ipods?
Posted at 11:53 pm on Nov 28th, 2007 by frank