Remove that annoying low frequency chirp.

If you listen to music on good speakers or headphones, you will, at times notice and hear chirping or ringing sound during quiet passage with bass or low frequency, such as a beat. It is annoying, but the problem does not lie in your sound card or headphones or sound system, it is Windows's fault. This problem is apparent in Windows Vista and up, as it's due to the misconfiguration of default audio settings and in my opinion shitty DSP of audiodg.exe.

Anyway to get rid of the chirp, go to audio properties by right clicking the speaker icon on the task bar and select 'playback devices'.

Double click on speakers and on the 'Speakers Properperties' dialog select the advanced tab. Under default format change the format to '16 bit, 44100hz (CD quality)'. Then click apply.

You then ask why down grade to CD quality when DVD quality is better? No, higher sampling rate or numbers does not equal to better sound quality. It is a placebo increase in sound quality and introduces unwanted noise like the chirping. You have to understand that most audio you listen to are 44.1khz sampling rate and increasing the sound card's sampling rate isn't going to improve that.