Mesure pré-fader vs post-fader
Lesson time: (2min 45sec)
La différence entre la mesure pré-fader et post-fader dans Logic : le pré-fader affiche toujours le signal source, tandis que le post-fader reflète le niveau après le fader du canal.
Course preview
This lesson is part of the course Composition dans Logic : mixage, finalisation et bounce
Watch a preview of the full course below.
Lesson transcript:
Understanding Pre-Fader and Post-Fader Metering in Mixing Logic
One important aspect to note when mixing in Logic is the choice between pre-fader and post-fader metering.
Post-Fader Metering
- Post-fader metering shows you the signal after it has passed through the channel.
- If you're listening to something and you lower the volume here, it will lower the overall output volume.
Pre-Fader Metering
- Pre-fader metering displays the original output signal, regardless of your fader position.
- No matter where you set the fader, it will always indicate the original signal.
Key Differences
- If you're peaking, the input signal will still show peaking status even if the output volume is low.
- This provides a far better representation of your mixing status and helps you identify any peaking at the main volume.
Example
- For instance, if your fader is down but the meter shows the signal is still up, you can see where the peaks are:
- "Whether I have it up here or down here, it's still going to show me the source signal."
- If I'm peaking over here, even when the volume is very low, I'll be aware of where it is at.
Adjusting Levels
- I might go ahead and adjust whichever instrument is peaking.
- For example, the bass seems to be too high; I can pull it down a bit now.
- Be careful: lowering it here influences the output volume, but the original signal remains high.
Final Adjustments
- The original signal is coming through the ACQ section of my SSL console.
- My approach would be to lower the input signal slightly and perhaps apply a little compression.
- For now, I'll leave the EQ as is since it doesn't bother me much.
- Overall, the signal level is acceptable now.
Let's see how the next instrument is performing.
About the instructor

Dov Waterman est compositeur, pianiste et producteur. Il a écrit et conçu le son de films tels que After Earth, Terminator Genisys, Transformers: The Last Knight et The Snowman, et travaille comme monteur audio de bibliothèques de samples et sound designer avec des sociétés comme Native Instruments et SonoKinetic.Sa série Composition in Logic parcourt la construction d'un morceau de bout en bout dans Logic Pro — des templates et du workflow jusqu'à la synthèse et la programmation de beats, les effets MIDI, le montage et le mix final — pour les producteurs qui veulent transformer leurs idées en disques aboutis. read more




