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Background Noise In Recordings - DAC Issue ?

post #1 of 6
Thread Starter 

When I listen to some recordings/songs there is noise (white noise, pink noise ... some kind of this noise :smile:) in background. Some songs have more noise, some has less, but interestingly some has non noise in background what so ever, perfectly clean.

 

It got me thinking. Is it DAC issue ?... How could it be if with some songs are perfectly fine. Than it's simply poorly recorded music played on unforgiving headphones ? (HD700 in this case)

 

What do you guys think about this ?

post #2 of 6

It is most likely poorly recorded music, if the DAC was the problem, there would not be perfectly clean tracks (well, except those that are always loud enough to mask the noise). You can also test if you hear any noise while no music is playing, or playing a WAV file containing silence, or an inaudibly quiet signal (the latter two to work around possible auto-mute tricks). More tests could reveal noise modulation issues in the DAC, if there are any. However, as noted above, the most likely explanation is simply bad recordings.

post #3 of 6
Thread Starter 
Quote:
Originally Posted by stv014 View Post
 

It is most likely poorly recorded music, if the DAC was the problem, there would not be perfectly clean tracks (well, except those that are always loud enough to mask the noise). You can also test if you hear any noise while no music is playing, or playing a WAV file containing silence, or an inaudibly quiet signal (the latter two to work around possible auto-mute tricks). More tests could reveal noise modulation issues in the DAC, if there are any. However, as noted above, the most likely explanation is simply bad recordings.

 

Thanks for extensive answer. Will try it out as soon as I get home ;) 

post #4 of 6
Thread Starter 

So "Heavy Love - Serena Ryder" in flac had absolutely no background noise, nicely clean no extra noise just music but for example "Dido - Thank You" also in flac has noise right from begining... there is just some claping for first 10 seconds so I can hear noise well and than I hear it thru whole song.

 

One of absolutely terrible songs in this regard I can find right now is "Sick Puppies - You're Going Down", it's like I got waterfall generator playing simultaneously with the song ...  http://mynoise.net/NoiseMachines/waterfallNoiseGenerator.php, but it actually doesn't bother me on this track when guitars, bass and other stuff hits in :D

 

When there is no music playing there's also no noise at all.

 

So guess there would be no DAC in world that would help with this right ?


Edited by Flisker - 11/14/13 at 6:33am
post #5 of 6
Quote:
Originally Posted by Flisker View Post
So guess there would be no DAC in world that would help with this right ?

 

Yes. Other than trying to reduce it with a DSP algorithm (usually in software), noise that is already in the recording is not removed by the DAC, however good it is. At best it does not add a significant (audible) amount of its own noise.

post #6 of 6
Thread Starter 
Quote:
Originally Posted by stv014 View Post
 

 

Yes. Other than trying to reduce it with a DSP algorithm (usually in software), noise that is already in the recording is not removed by the DAC, however good it is. At best it does not add a significant (audible) amount of its own noise.

 

Ok, thanks for clarification. I was thinking it might be because right now I'am only using DAC - Realtek ALC889 audio chip on pc motherboard.

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