Changing play speed for CD Player. - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 13th October 2002, 03:57 PM   #1
djdan is offline djdan  Romania
diyAudio Member
 
Join Date: Dec 2001
Location: Romania
Default Changing play speed for CD Player.

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 !
  Reply With Quote
Old 13th October 2002, 06:17 PM   #2
sangram is offline sangram  India
diyAudio Member
 
Join Date: Sep 2002
Location: India
Home: No

PC, lotsa shareware floating about on the 'net.
  Reply With Quote
Old 13th October 2002, 08:25 PM   #3
Banned
 
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
Send a message via Yahoo to Elso Kwak
Default +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?
  Reply With Quote
Old 13th October 2002, 08:42 PM   #4
djdan is offline djdan  Romania
diyAudio Member
 
Join Date: Dec 2001
Location: Romania
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 !
  Reply With Quote
Old 14th October 2002, 12:07 AM   #5
diyAudio Member
 
mrfeedback's Avatar
 
Join Date: Feb 2002
Location: Perth, Australia.
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.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
CD player won't play clear disks sadim1223 Parts 7 24th March 2009 05:57 PM
Problem getting RX-V2500 to play nice with SACD DVD-A Player sumsound Everything Else 0 27th August 2008 05:03 AM
grad thesis emergency! trying to play sound thru portable cd player to minispeakers hellofarmers Everything Else 7 16th April 2008 03:13 AM
Flash-based mp3 player with random play Jamesss Digital Source 0 24th January 2007 11:42 AM


New To Site? Need Help?

All times are GMT. The time now is 07:40 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2