Strange sound problems (distortion once again) - Amiga 4000

viddi · 10 February 2008, 03:36

Hey!

I read the related threads here on EAB (http://eab.abime.net/showthread.php?...iga+4000+audio) and the Amiga Technical Resource page.

I use a refurbished mainboard (made by DCE Computer in 2002)
All capacitors and tracks are okay.

I often get sound distortions when playing WHDload- and floppy disk games.

But OctaMed is just fine and all channels are crystal clear.
Then I tried the audio test utility: no problems at all.

I also removed the Maestro soundcard and the VLAB motion card.
No difference.

Ah yes, I changed the PSU fan some weeks ago.

I hope you can give me some advice.

Thank you so much.

laser · 10 February 2008, 04:34

sometimes audio distortion is a problem of radio-interference.... not a related motherboard issue

try a diferent audio cable..... a good blinded one and the shortest possible...and check if the problem persists

viddi · 10 February 2008, 14:57

Thanks for the input, laser.
But the audio cable is okay. I checked it with my A1200.

I used contact spray, connected a new power plug and it works.

...until now...

Hewitson · 10 February 2008, 16:03

Maybe a filter related issue. Try turning on the filter in OctaMED and see if the problem happens.

laser: a blinded cable??

viddi · 10 February 2008, 16:21

Hi Braddo,

nice idea! But it works flawless.

I´m trying various games and apps at the moment.
Audio works fine by now...*fingers crossed*

Laser meant a shielded cable, I suppose.

amigakit.com · 10 February 2008, 16:49

-12v problem?

viddi · 10 February 2008, 18:09

Quote:

Originally Posted by amigakit.com

-12v problem?

Please be so kind and give me some more infos about it.

10 February 2008, 03:36	#1
viddi Moderator Join Date: Apr 2006 Location: Germany Age: 44 Posts: 4,011	Strange sound problems (distortion once again) - Amiga 4000 Hey! I read the related threads here on EAB (http://eab.abime.net/showthread.php?...iga+4000+audio) and the Amiga Technical Resource page. I use a refurbished mainboard (made by DCE Computer in 2002) All capacitors and tracks are okay. I often get sound distortions when playing WHDload- and floppy disk games. But OctaMed is just fine and all channels are crystal clear. Then I tried the audio test utility: no problems at all. I also removed the Maestro soundcard and the VLAB motion card. No difference. Ah yes, I changed the PSU fan some weeks ago. I hope you can give me some advice. Thank you so much.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Amiga 4000 Sound Distorted and low	virge	support.Hardware	28	15 July 2018 19:18
sound issues on Amiga 4000	sovietconscript	support.Hardware	10	13 November 2012 15:07
Problems with my amiga 4000	piemmeweb	support.Hardware	22	27 August 2009 09:12
Problems with my Amiga 4000	Seblington	support.Hardware	26	24 January 2007 07:13
Amiga 4000 Sound Problem	manicx	support.Hardware	3	15 September 2003 22:43

10 February 2008, 04:34	#2
laser Banned Join Date: Aug 2006 Location: Argentina Age: 51 Posts: 648	sometimes audio distortion is a problem of radio-interference.... not a related motherboard issue try a diferent audio cable..... a good blinded one and the shortest possible...and check if the problem persists

10 February 2008, 14:57	#3
viddi Moderator Join Date: Apr 2006 Location: Germany Age: 44 Posts: 4,011	Thanks for the input, laser. But the audio cable is okay. I checked it with my A1200. I used contact spray, connected a new power plug and it works. ...until now...

10 February 2008, 16:03	#4
Hewitson Registered User Join Date: Feb 2007 Location: Melbourne, Australia Age: 41 Posts: 3,773	Maybe a filter related issue. Try turning on the filter in OctaMED and see if the problem happens. laser: a blinded cable??

10 February 2008, 16:21	#5
viddi Moderator Join Date: Apr 2006 Location: Germany Age: 44 Posts: 4,011	Hi Braddo, nice idea! But it works flawless. I´m trying various games and apps at the moment. Audio works fine by now...fingers crossed Laser meant a shielded cable, I suppose.

10 February 2008, 16:49	#6
amigakit.com Registered User Join Date: Aug 2004 Location: www.amigakit.com Posts: 2,032	-12v problem?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)