User Manual

Master Section
OZONE 7 | MASTERING SECTIONS
82
Bit Meter Reset
Click here to reset the bit meter and start its display over with the program material’s current playback
point.
Filter DC
Oset DC oset (direct current oset) is a defect in the recording when the waveform’s average
voltage is above or below zero. Audio signals are normally represented by an alternating current
whose average value is zero. Some malfunctions in the recording equipment can result in a direct
current leaking into the signal. Thus, the recorded waveform appears to be above or below the
zero line. In FFT (Fast Fourier Transform) analyzers, the DC oset is represented with energy at
zero frequency (0 Hz). A DC oset can be removed with a high-pass filter. Ozone’s DC Oset button
activates a high-pass filter with a 1 Hz cuto frequency.
It is important to distinguish DC oset from waveform asymmetry. Asymmetry skews the waveform
shape towards positive or negative levels, but the average current stays at zero. Unlike DC oset,
asymmetry has no particular energy near 0 Hz and can be reduced using phase rotation filters.
Note: The Filter DC Oset runs in real-time before the Maximizer. The Maximizer module must be in
signal chain to enable DC oset filtering.
DC Oset Meter
When the DC Oset Filter is on, the DC Oset meter shows the amount of the DC that is being
removed.
Dithering Guide
If you are interested in getting some practical tips for using dithering, as well as some of the theory
behind it, please check out the Ozone Dithering Guide.
Note that with the purchase of Ozone 7 Advanced, you also get the comprehensive Insight metering
plug-in included. For more information about Insight, click here.
Dithering Tips When Using the Plug-In Version of Ozone 7:
• Do not perform any processing to the audio after it has been dithered with Ozone. You may
perform level adjustment with the output gain sliders in Ozone (those come before the dither)
but do not change any levels in the host app or with other plug-ins.
• Almost all host apps have their master faders after the eects slot, so any level adjustment in
the host app will destroy the dither.
• Do not put any plug-ins after Ozone if you are dithering with Ozone. The dither must be the last
thing that touches the audio.
• Turn o dithering in the host app. Basically, you just want to truncate (throw away) the bits,
because they’re just zero anyhow.