Hi,
I am used to mix and keep peaks no louder than 0db.
I sent a mix and got the following feedback from client: 

"I need to mix to peak no louder than -9dbfs."

What do I need to do?
thanks
joni

Because of the internal bit depth in Sonar, you can always just turn down your master fader -9db's or so. This way, your mix will not change and you're leaving plenty of headroom for the mastering engineer or whoever asked for that. 
 
In general, you're FAR better off recording less hot (turn the outputs down lower on your Virtual Instruments and record with more headroom for everything else) and turning your monitors up from the beginning. 

turn the master bus gain down until you meet your requirement. :-)

Thanks Funkybot and Gswitz.
So turning the master fader down so that peaks hit at -9db is what they mean by -9dmfs?
 
thanks
joni

djoni
Hi,
I am used to mix and keep peaks no louder than 0db.
I sent a mix and got the following feedback from client: 

"I need to mix to peak no louder than -9dbfs."

What do I need to do?
thanks
joni

dbfs is decibles measured in "full scale" code.  This applies to A/D and D/A converters and signal levels in the digital domain.  Full scale refers to the maximum voltage level possible before “digital clipping,” or digital overload of the data converter. The actual Full Scale voltage is fixed by the internal data converter design, and varies from model to model. In digital metering a level of 0 dB is ostensibly equal to 0 dBFS, but in reality there may be some “fudge factor” built in either by design or by accident.
 
Setting your mixes at 0bd does not leaving any headroom for mastering.
 
Kind regards,
 
Living Room Rocker

gotit. thanks