Main Restorations Software Audio/Jukebox/MP3 Everything Else Buy/Sell/Trade
Project Announcements Monitor/Video GroovyMAME Merit/JVL Touchscreen Meet Up Retail Vendors
Driving & Racing Woodworking Software Support Forums Consoles Project Arcade Reviews
Automated Projects Artwork Frontend Support Forums Pinball Forum Discussion Old Boards
Raspberry Pi & Dev Board controls.dat Linux Miscellaneous Arcade Wiki Discussion Old Archives
Lightguns Arcade1Up Try the site in https mode Site News

Unread posts | New Replies | Recent posts | Rules | Chatroom | Wiki | File Repository | RSS | Submit news

  

Author Topic: Hum and other sounds from speakers  (Read 832 times)

0 Members and 1 Guest are viewing this topic.

raventy

  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 76
  • Last login:February 01, 2016, 05:55:47 pm
Hum and other sounds from speakers
« on: July 05, 2006, 04:06:24 pm »
Hey guys,
On my Crisis Zone Delux machine there is a hum and other various more high pitched noises which come out of the speakers. Interestingly enough the noises seem to change depending on the image displayed on the tv screen. Typically when a lighter image is shown the noise gets more high pitched/louder. Anyone know why this happends? Thanks!

fiscap

  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 159
  • Last login:November 24, 2024, 03:30:36 pm
  • I dare ye enter... the dungeons of daggorath!!!
    • BYOAC blog
Re: Hum and other sounds from speakers
« Reply #1 on: July 05, 2006, 08:58:00 pm »
This could be the result of a ground loop somewhere in your system or feedback through an inexpensive on-board soundcard.

The first thing I would try is to open up your mixer through your Volume Control properties and mute all unnecessary inputs - i.e. Line-In, Aux, Microphone, etc. This may help you isolate where it's coming from.

Can you provide more details as to what your system looks like and how it's being used?


Whoops - my bad! I didn't see that this was related to a specific upright cabinet. My apologies, although it is possible that there is a ground loop somewhere in your audio path. I wouldn't be able to help you troubleshoot it without seeing a schematic of how the cabinet is wired.
« Last Edit: July 05, 2006, 09:05:03 pm by fiscap »