Difference between revisions of "Turntable USB interface"
From Organic Design wiki
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=Systems= | =Systems= | ||
*Power supply | *Power supply | ||
| + | **plug pack 12V 100mA | ||
| + | **Split from it's case and wired in parallel on the AC side of the turntable's main transformer | ||
*Analogue phono stage (requires ±12V DC) | *Analogue phono stage (requires ±12V DC) | ||
| − | * | + | **to be build on veroboard |
==Microcontroller== | ==Microcontroller== | ||
Revision as of 22:53, 28 January 2007
I would like to retro-fit my 1970's pioneer turntable to be able to record onto a iPod or other USB device.
Contents
Operation
- Plug in USB stick or iPod
- Press record-pause
- Place stylus on a chosen track
- Signal level threshold trigger changes to record when the stylus hits the record
- Sound file is written onto the device
- Signal level threshold trigger stops recording after a few seconds pause (manual pause provided also)
Systems
- Power supply
- plug pack 12V 100mA
- Split from it's case and wired in parallel on the AC side of the turntable's main transformer
- Analogue phono stage (requires ±12V DC)
- to be build on veroboard
Microcontroller
- Arduino NG AVR microprocessor board
- Schematics
Features
- ATmega168 AVR processor
- Digital <-> Analogue converter
- C library and compiler supplied as open source
Operating system
- gcc, libc supplied and open source
- No real operating system required
- svn tree
- bootloader supplied and open source
- Program to modify iPod's XML playlist file to add the newly created track to the playlist
