SunQuest
           Multimedia Hardware
 
Forums: » Register « |  User CP |  Games |  Calendar |  Members |  FAQs |  Sitemap |  Support | 
User Name:
Password:
Remember me
Go Back   Dev Shed ForumsComputer HardwareMultimedia Hardware

Reply
Add This Thread To:
  Del.icio.us   Digg   Google   Spurl   Blink   Furl   Simpy   Y! MyWeb 
Thread Tools Search this Thread Rate Thread Display Modes
 
Unread Dev Shed Forums Sponsor:
Stop making mediocre tutorials.The best tutorials are video! Camtasia Studio makes it easy to create engaging, buzz-building screen videos at any size, in any popular format. Download the free trial!
  #1  
Old May 29th, 2004, 09:00 PM
ShaRiff ShaRiff is offline
Registered User
Dev Shed Newbie (0 - 499 posts)
 
Join Date: May 2004
Posts: 1 ShaRiff User rank is Just a Lowly Private (1 - 20 Reputation Level) 
Time spent in forums: < 1 sec
Reputation Power: 0
High Pitched Interference, HELP!

I am having problems with a constant high pitched noise when RECORDING from any source via line in with my sound card. The noise isn't present whilst just listening to sources through the sound card, but when i record the sources in sound forge and then play them back, the constant high pitched noise is there on the sound file. I didn't have this problem with the sound card built in to the motherboard but when i upgraded to a PCI sound card the problem started. It is wierd because the noise is only evident once the file has been recorded, otherwise there is no high pitched noise. I was going to move the card down a few slots, but i haven't really had time. Would this help? Please post any suggestions on how to solve this annoyance. Thanx in advance.

Reply With Quote
  #2  
Old June 18th, 2004, 04:56 PM
medialint's Avatar
medialint medialint is offline
spirit duplicator
Click here for more information.
 
Join Date: Apr 2004
Location: \\Firecrate\
Posts: 12,315 medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)medialint User rank is General 24th Grade (Above 100000 Reputation Level)  Folding Points: 232775 Folding Title: Super Ultimate Folder - Level 1Folding Points: 232775 Folding Title: Super Ultimate Folder - Level 1Folding Points: 232775 Folding Title: Super Ultimate Folder - Level 1Folding Points: 232775 Folding Title: Super Ultimate Folder - Level 1Folding Points: 232775 Folding Title: Super Ultimate Folder - Level 1Folding Points: 232775 Folding Title: Super Ultimate Folder - Level 1
Time spent in forums: 4 Months 3 Weeks 9 h 3 m
Reputation Power: 2575
It might help. What else might help:

* Take all the flourescent lights in the room, throw them in the trash. Replace with incandescent lighting. Your eyes will thank you too, as will the electric company (*sigh*)

* Take all cables which are audio and all cables which are power and ensure that:
- a. they are as far apart as possible
- b. they never, ever, ever cross
(This will cause a 60 cycle hum (low), in most cases, not a high pitch.)

* Turn off any television or similar devices. Just for the heck of it (and for good reason) turn off your CRT display too, while recording, and see if the sound goes away. If it does then: >> move the CRT.

Anything with a tube or a motor is suspect, including the fans within the case.

Reply With Quote
  #3  
Old June 30th, 2004, 03:41 PM
dmmyrick dmmyrick is offline
Registered User
Dev Shed Newbie (0 - 499 posts)
 
Join Date: Jun 2004
Location: Elk Grove, CA
Posts: 6 dmmyrick User rank is Just a Lowly Private (1 - 20 Reputation Level) 
Time spent in forums: < 1 sec
Reputation Power: 0
Cool Check grounding and shielding

Sounds like, no pun intended, that you may be picking up interference. Here are some more things to check:

  • Check AC grounding and make sure you are using a three prong plug.

  • Verify that the computer case is grounded.

  • Check and insure the flat, threaded nut that secures the 'lin-in' jack to the card is tight.

  • If you are only using one input cable for 'line-in', test the cable and make sure that left, right and neutral are balanced and securely connected at both ends.

  • If you have a lot of spurious energy around, other electronic equipment, etc., consider using a shielded input cable.

  • Check the sound card's shielding and make sure nothing is loose or disconnected from the board.
Good Luck

Reply With Quote
Reply

Viewing: Dev Shed ForumsComputer HardwareMultimedia Hardware > High Pitched Interference, HELP!


Thread Tools  Search this Thread 
Search this Thread:

Advanced Search
Display Modes  Rate This Thread 
Rate This Thread:


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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
View Your Warnings | New Posts | Latest News | Latest Threads | Shoutbox
Forum Jump


Forums: » Register « |  User CP |  Games |  Calendar |  Members |  FAQs |  Sitemap |  Support | 
  
 





© 2003-2008 by Developer Shed. All rights reserved. DS Cluster 4 hosted by Hostway