As an example, you can use one of our console plugins for this purpose, which has a trim and VU Meter controls. ![]() Use a trim control to level all your tracks to be near 0VU, you should not use the fader of your DAW for this purpose. You will get more dynamics and your preamps and converters will work much better.Īnother advantage is that the tracks will be almost ready to start mixing. When recording at “0VU = -18 dbfs”, you are replicating the standard headroom used in the analog world. It is a common mistake to record at the maximum possible input level, nowadays all audio interfaces support at least 24 bits, so it does not make sense to record with extremely “hot” levels. Is it important to record with a good level and headroom. For example, if you mix with a VU meter calibrated at 0VU = -18 dBfs, and your maximum peak is 0 dBfs, then you will get a headroom of 18 dB. In the mixing world, headroom is the difference between the average signal level and the maximum peak value. VU Meter Calibration:Ĭalibrating a VU meter plugin in the digital world is easy, get a dBfs reference to match with 0VU (0VU means when the VU needle is on zero).Įx: If you choose -18 dBfs = 0VU, you will get an 18 dB of headroom approximately. Due to its similar behavior, VU meters are useful when in the mixing phase of a project. It works in a similar way to the human ear. It has a slow response and ignores the signal peaks (300 milliseconds of integration time). VU meterĪ Volume Unit Meter is a metering unit to measure a signal level volume. RMS meters are used for statistical measurements of the overall volume and are very useful for mastering purposes. RMS value is represented by the root mean square of the signal, so the values don’t react as fast as a peak meter it represents an average of the total volume. ![]() These meters are usually found in most DAWs, and becomes very useful (in conjunction with a VU Meter) for recording purposes, to avoid digital clipping. PPM meters are usually fast and react to all transients in the audio signal. Peak value is the maximum wave amplitude measured in dB (decibels). Peak, RMS, and VU meters were all designed with different purposes in mind let’s examine the differences and discuss when to use each of them.
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