Hi everyone,
I am currently having a problem during final mixing down to cd mp3 41000 16 bit from a wav file mastered. The problem is after bouncing down from sonar x2, I could hear some kind of background noises ( like zzz). And I do not know why this happens, I am really frustrated on this thing. 

The original does not sound like that. It may sounds close to clipping but its not. I have 24 bit during recording as normal. Here are the two files that you can listen directly on the website to see the problem. 

Original vocal sound :https://www.box.com/s/a2f3dbpa6iwto015ve9g
The vocal sound with problem: https://www.box.com/s/yomotfc37dgknlobiu84

Please help ! I really appreciate for your help. 

Wow! What language is that? Sounds cool.

But yes, I hear it. And I don't know actually, but there are certainly some artifacts in there. Are you recording at 44100 or 48000? Are you using dithering and 64-bit double precision engine when bouncing? If not, try turning it on in the export dialogue. You could try to export your song directly to mp3 as well and see if that will give you a better result.

Judging by the name it's Japanese. Nice melody.

The same thoughts as ProjectM. Also, sometimes different effect can cause problems. Maybe there is nothing wrong with the effects but sometimes they can become a problem. It's rare but there have been times that I've had to reload effects.

Do you get that when converting a stero wav file to mp3 with Sonar? I understand that it is a good suggestion if the project is bounced out to mp3 - or some other format, but the OP seems to be converting from a wav-file and if the original file sounds ok, then I don't think a dodgy effect is the problem.

What it sounds like to me is that the conversion of certain frequencies are messed up in the process.

Are you using Sonar's mp3 encoder??  If so, check out this thread: Sonar mp3 encoder problem.  

I had used Sonar's encoder extensively until this little problem cropped up.  No problems at all since switching.

Weird,  

I need to add this to my note pad.

Ive been using Cake Encoder since joining without any probs.  I know Ill forget this if I ever have a problem creep up with it.

If it was mastered to 0dB ,then that may be your problem. when mastering there shoudl be a very small amount of room left over for MP3 conversion. 
The mastered song should peak at -0.02dB to - -0.04dB. This leaves enough room for any mathematical errors when converting to an MP3



Your welcome,
CJ

I hear it also. Could you give a more detailed description of your export process like the options you used? Are you doing any processing in sonar other then exporting to mp3 that the wave doesn't have?

Also, did you record the track in sonar or import it? If imported maybe something happened during import?

For the peak limit, I even left it peaks at - 10 db, It stills sounds like that. And it happens to all DAW. I tried sudio one, and sonar x2. What I did :
Using a laptop core ị windows x64 4 gb RAM, Audio interface Focusrite 2i2

1) Open a 24 bit project and record my vocals 24 bit
2) If I export to wav then its ok, sounds the same, but if I export to mp3 128 kb/s, problem exists

UPDATED: I just tried export to mp3 320 kb/s, The problem is gone, It is ok for me for now but 320 kb/s makes a song have even more then 12 MB of file.

>>> I want to export in MP3 128 kb/s without problem. Thanks so much for your help guys ! 

stan_tnguyen

I am currently having a problem during final mixing down to cd mp3 41000 16 bit from a wav file mastered. The problem is after bouncing down from sonar x2, I could hear some kind of background noises ( like zzz).

Try making the MP3 from the original file without changing the bit depth.


For example, if your project is 96khz/24bit ... try exporting the project to a 96kHz/24bit file and make an MP3 directly from that file.

When making MP3's, you do not have to make them from a 16bit file. It can be any bit depth. What it sounds like is maybe some kind of artifact from the dithering process from when you are changing the file from 24bit to 16bit.


NOTE: I've never used Sonar to create an MP3. I know it can be done directly from a project. If that's what you are doing, and there is a 'Dither' option, turn it off and see if that helps.


Good luck.


Bub.