The above thing works like a charm however for those still having problems. If you are using a sound card that allows you to select the default format for the sound output it should be set to 44100 Hz, I have a Realtek High Definition Audio on-board soundcard and if this setting is higher the sound in nullDC will probably be bad. Don't know if this issues is for my soundcard only or if it works on others but it's worth a shot.
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