I have a few questions about arduino
1: can arduino be used as a analog audio device
2: can arduino play back and record to tapes
3: Is there an Arduino product that does this
4: do i need to modify my existing parts to work with arduino plugs
( Tape mechanism, head plugs and motor 12v motor plug )
( The plugs are just regular wires. )
I do have access to a soldering gun if needed.
Most tape machines are entirely analog and mechanical. Some 3-motor decks or other high-end decks may have some digital logic controls.
1: can arduino be used as a analog audio device
No. The Arduino is a digital microcontroller.
There is a 10-bit analog-to-digital converter that can sample at about 15kHz. That gives you audio up to about 7.5kHz. For reference, audio CDs are 16-bits at 44.1kHz (for audio up to about 22kHz). Analog tape isn't as good as CD, but it's usually better than the Arduino (unless you have a really cheap cassette deck or something).
The regular Arduino has no built-in digital-to-analog converter (no analog output).
2: can arduino play back and record to tapes.
No. The Arduino is electronic, not mechanical.
3: Is there an Arduino product that does this
No.
4: do i need to modify my existing parts to work with arduino plugs
( Tape mechanism, head plugs and motor 12v motor plug )
The Arduino works at 5V at low current, so you need a motor driver circuit to drive a motor. It can read switches and output voltages so it might work as a "logic board" but you'd have to understand all of the switches & sensors (Arduino inputs) and all of the motors/solenoids/indicators (Arduino outputs).