Noise in audio output
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=3264
Printed Date: 23 Dec 2024 at 11:34am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Noise in audio output
Posted By: orlando.luccio
Subject: Noise in audio output
Date Posted: 18 Aug 2016 at 3:01am
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I both http://www.asrock.com.tw/microsite/Fatal1tyKiller/Fatal1ty%20FM2A88X+%20Killer.html" rel="nofollow - Fatal1ty FM2A88X+ Killer and when i try to connect the audio out to the amplifier and speakers , i have several noise in the audio , I changed the main board with the supplier, updated the bios, changed the power supply, CPU and amplifier are in the same power strip with ground ,,, in the same conditions if i use my lap top there is no noise ??? The main reason for buying this http://www.asrock.com.tw/microsite/Fatal1tyKiller/Fatal1ty%20FM2A88X+%20Killer.html" rel="nofollow - Fatal1ty FM2A88X+ Killer was the information that the audio was of high quality ?? What i can do ? |
Replies:
Posted By: wardog
Date Posted: 18 Aug 2016 at 11:01am
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Two things might be happening here. That you're on the second motherboard, IMHO, and lack of being able to physically view the wiring leads me to the below two suggestions. 1. Something plugged into the power strip or on the same electrically fused circuit is electrically dirty and introducing the noise you hear. Move the computer and or amp to a different outlet on another circuit in the house to test. 2. Less likely yet still believable is the any of the cords(power, audio etc) are susceptible to and are being subject to EMI/RFI interference. Cabling being messy, laying alongside an electrically noisy cable/cord, and to be honest the outlets and cable arrangement coming off the power strip. Just how loud or overwhelming is the noise compared to a zero volume level? Or is there any noise at a zero level? If not, at what volume does this noise introduce itself? What amp are you connecting to, and what interconnect between them is in use? |
Posted By: parsec
Date Posted: 18 Aug 2016 at 12:52pm
The board's audio components may be of high quality (they are of high quality) but that does not guarantee that other parts of the PC are not adding noise into the audio signal. The audio parts on the mother board are isolated from other parts on the mother board, to prevent noise from the other parts being picked up by audio parts. That does not mean that sources of noise that are not on the mother board itself have their noise isolated from the audio parts. There are many parts in an audio signal path. The audio signal source, digital to analog convertor (DAC), preamplifier, amplifier, and speakers. A mother board provides the digital to analog convertor and preamplifier. We provide the audio source, amplifier, and speakers. What is your audio signal source in that PC? What format or type of files do you use? Or streaming audio over the Internet? Most PC have multiple DACs and preamplifiers for audio. If your CPU has integrated video, it also has those audio parts. If you use a video card, it has those audio parts. You must select the default DAC and preamplifier in Windows. If you don't select the Realtek audio, then one of the other DACs and preamplifiers will be the default. That signal may even be routed through the Realtek audio parts, which only makes the signal worse. You may have replaced the PSU, but is it the same model? What PSU are you using? Do you have power cables from the PSU near the audio parts on the board? Or power cables near the audio signal source device? wardog said the same thing in his post above, because it is matters. Do you have the AMD CPU power saving feature Cool n Quiet enabled in the BIOS? If you do, set it to disabled and check if the audio noise is better. Did you disable Spread Spectrum in the BIOS? Comparing your laptop to the desktop PC is comparing two completely different types of hardware. The PSU of the laptop is no where near it, and uses a battery to provide the power. So you use the same audio signal source in the laptop and desktop PC? Everything you use might be connected to the same power strip and ground, but have you verified that the AC wall outlet is wired correctly, and has its ground connected? You have not told us what the noise you hear is. Is it hum, hiss, crackling sound, some or all of these together? Does it change with the volume level? ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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orlando.luccio wrote:Posted By: wardog
Date Posted: 22 Aug 2016 at 10:32am
| orlando, you get things straightened out there? |