Changing play speed for CD Player.

[djdan]

How can I change the play speed ( pitch ) for a normal home CD-Player ? I need something special : +60% .

Any help , link or sugestion , please !!!


Best regards !

 

[Sangram]

Home: No

PC, lotsa shareware floating about on the 'net.

 

[Elso Kwak]

+60% speed

Hi djdan,
Install a clock with 60% higher frequency.
If you want it variable make a clock with VCO. See application note 12 on www.linear.com. though I doubt you can pull the crystalfrequency that much. Is it for dj use?

 

[djdan]

Thank you for answere !

I don't want to make variable. I want to make a master CD-player for a cassette duplication sistem wich use normal home cassette recorders with some change at tape speed. It is a school project for my brother.

Why 60% ? Becouse is the good compromise speed/sound quality, using non-pro equipment.

When you say clock , do you mean 70 Khz ?

Regards !

 

[mrfeedback]

I have seen standard cd players fitted with an aftermarket added master clock oscillator module providing +/- 20% playback speed.
I doubt that the tracking and focus servos would cope with +60%
however.

Eric.