Variable cd pitch by changing clock speed

[Mr Guy]

I am interested in modifying one of my cd players, so that i can
adjust the pitch of the music played by it. I have read various other
posts on this subject, but all are over 10 years old.

Please do not post providing information on the various types of cd
players for sale with this function built in, I already know and dont
care.

I am aware that this is not just a matter of changing the rotational
speed of the cd. But a high school physics and general interest in
electronics background has allowed me to realise that it cant be to
hard to change the speed of the clock that cd players use to sample
the music by.

A previous post suggested that this "clock" was created by a crystal
oscillator, although when i ripped my old cd player apart, i couldnt
see anything that might be a crystal, although i dont really know what
it would look like. (obviously not a little rock in the cd player)

Possibly these crystals from the posts years ago have been replaced by
an IC???

Can anyone verify this, and give me details about different clock ICs,
or anything else that may help me.

Was thinking about using a variable frequency oscillator as input into
the place where the clock/timer was. Uhhm, but yeh, any suggestions?

 

[Travis Jordan]

Mr Guy wrote:

I am interested in modifying one of my cd players, so that i can
adjust the pitch of the music played by it. I have read various other
posts on this subject, but all are over 10 years old.

Do you want to change the pitch, or just slow/speed up the tempo?

 

[Travis Jordan]

Travis Jordan wrote:

Mr Guy wrote:
I am interested in modifying one of my cd players, so that i can
adjust the pitch of the music played by it. I have read various
other posts on this subject, but all are over 10 years old.

Do you want to change the pitch, or just slow/speed up the tempo?

Save yourself a lot of hassle and time - do it in software. Here is
just one product for the job. You probably can find some freeware
solutions if you look around.

http://www.bits.com/115173.html

 

[Mr Guy]

i would like to change both the pitch and the speed, as theyre
directly related.
i am interested in this so that i could buy some cheap discmans, and
have a control to speed them up or slow them down, so that i can match
the tempo of different songs.
I know i could do this by computers, but would rather do it this way.