Distorted sound with new motherboard

[miket124]

First of all, sorry for my bad english. I have recently bought ASUS P8H77-M LE motherboard, which has ALC887 sound chip, and i have problems with sound quality. Some high frequency sounds are a little distorted, i can feel the distortion in speeches, especially in the words containing the letter 's'. Most people may not feel this "little" distortion, but for me it's enough to ruin my music and gaming experience. It is like, when you convert a 44 kHz .wav file to an .mp3 file with a low bitrate (i.e. 32kbps) and sampling frequency (i.e. 11 kHz), then re-convert it to 44 kHz .wav file again, high frequency sounds become a bit distorted, my problem is similar to that. I tried a SB X-Fi Titanium, distortion is gone a little bit, but still exists. My old motherboard was AMD M5A78L-M LX, with the same ALC887 sound chip, but there was no distortion. I tried the X-fi card on this old mobo, no distortion. This proves the SB X-fi does not have any hardware-related problem, then what causes this problem? I really don't get it. I tried to change some BIOS settings, especially power-saving related ones, but no luck.

I wrote about this to the technical inquiry page on the ASUS website, but they gave no satisfying answer. I really need help about this. Thanks for any replies.

My PC specs:

Intel P8H77-M LE, Core i5 3470 cpu, Nvidia Geforce GTX 560, 8 GB DDR3 ram, 500 GB Samsung HDD

 

[stingstang]

This would be your speakers messing up. It's the only logical explaination, as you tried to use a different sound card and had the same problem.

 

[miket124]

I'm pretty sure my speakers are not faulty, as i tried them with different systems with no distortion.

I've searched information about sound distortion types at wikipedia, but none of them matches with my problem. I'm starting to think it is an intel southbridge issue, as my old AMD board never had this issue, and i googled about it but cannot find any posts complaining about a similar problem. I don't want to return to my old and slow AMD system and waste my money because of this problem.

 

[bryonhowley]

Would agree with the above it sounds like a problem with your speakers. The fact that it was still distorted on a Sound Blaster X-FI leads to bad speakers.

 

[miket124]

I tried different speakers and headsets on my pc, with same result. The problem is the audio signal, not the speakers. I'm sure about that. But thanks for your replies anyway.

 

[younes-ea]

you could buy a cheap soundcard and use that as a speaker output.
contact asus about this problem.