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Lesson 9 Fundamentals of Audio Mixing > Creating a Mix - Pg. 334

334 Media Composer 6: Professional Picture and Sound Editing Tip: When mixing, remember that sound levels are relative. If something is too quiet, you can either apply gain, or you can attenuate everything else. Take a moment to complete Exercise 9, Part 1. Creating a Mix When you mix, or add, two audio signals you combine the sound waves from each signal. The process of combining audio signals is called summing. This brings up the most fundamental principle in audio mix theory: When you double the power output of a sound, the overall loudness of the sound increases by 3dB for each source. Tip: The summarized version of the rule is this: The more sound waves, the louder the total output. You would never want to solo (isolate) a track, and then adjust the audio to be perfect for that one track. That's a poor workflow because, once you enable all the tracks, you'll find the final level will be louder than the individual tracks and you'll need to adjust them all again. When adjusting your audio mix, do it in the con- text of the entire mix and leave all your tracks on. Also note that an audio mix perfected in a stereo audio environment will sound significantly different when it is delivered according to mono standards and vice versa. Your audio mix may sound too weak or quiet or too strong and over- modulated. Always be sure to create your audio mix using the final delivery standard of the project. Consider Your Environment Prior to beginning your audio mix, consider your environment by listening to it. Turn off ambient background sound, such as air conditioners and fans. Be aware of the sound that's naturally in your environment and consider that it won't be there for your audience. Ideally, make the room as audio-neutral as possible. You should also calibrate your audio monitors. Audio monitors are higher-end speakers with better fidelity than regular desktop multimedia speakers. Calibrating your audio monitors consists of playing a sound at your reference level and adjust- ing the levels on the monitors to a point that feels comfortable. Once you've set your audio monitors, don't change them. If something is too loud in your sequence, attenuate it through an adjustment with Media Composer's Audio Mixer tool.