Signal Modules

The following modules and module-specific settings are available:

Level

This module shows the level of your audio. It provides a multi-channel level meter and a maximum level value display.

The following module-specific settings are available in the Module Settings window:

Scale

Allows you to select a scale according to different broadcast standards (Internal, Digital, DIN, EBU, British, Nordic, K-20, K-14, K-12, +3 dB Digital, +6 dB Digital, or +12 dbB Digital).

Note

You can customize the appearance of the meter for all scales individually in the Preferences dialog (Metering—Appearance page).

Peak Hold

Specifies for how long the peak levels are held in the display.

Peak Fallback

Sets the speed of release for the level meters and peak indicators.

Note

• Alternatively, you can move the mouse pointer over the selected module, hold Ctrl/Cmd, and use the mouse wheel to adjust this parameter.

• If this control is turned all the way to the left, the peak indicators are disabled.

Threshold

Sets a threshold level below which the display is masked.

Note

Alternatively, you can move the mouse pointer over the selected module and use the mouse wheel to adjust this parameter.

Offset

Sets the offset between measured and displayed value in dB.

This parameter is only available for the DIN, EBU, British, and Nordic scale.

Clipping

Sets the clipping value for the Internal scale.

Minimum

Sets the minimum value for the Internal scale.

Maximum

Sets the maximum value for the Internal scale.

Color

Sets the color of the meters. You can choose between the Scale color and the Track color.

RMS AES17

Shows the level in accordance with AES17 (RMS + 3 dB).

RMS Resolution

Sets the RMS resolution for the level display in milliseconds.

Max. Value

Sets the measurement mode for the maximum level value display. The following modes are available:

• True Peak shows estimated real peak value for each channel.

• Peak Max. shows maximum sample value for each channel.

• RMS Max. shows the maximum RMS value for each channel.

• RMS Max. + True Peak shows the highest maximum RMS and the highest estimated real peak value of all channels.

• RMS Max. + Peak Max. shows the highest maximum RMS and the highest maximum sample value of all channels.

Loudness

This module shows the loudness of your audio in LU (Loudness Units) or LUFS (Loudness Units, referenced to Full Scale) according to EBU R 128.

TP (True Peak)

Shows the maximum true peak level in dB.

I (Integrated)

Shows the integrated loudness value. This is the average loudness value that is measured over the whole audio range in LU or LUFS.

S (Short-Term)

Shows the short-term loudness value that is measured every second on an audio block of 3 seconds in LU or LUFS. This gives information about the loudest audio passages.

M Max. (Momentary Max.)

Shows the maximum value of all momentary loudness values that are measured every 100 ms in an audio range of 400 ms in LU or LUFS.

R (Range)

Shows the loudness range (LRA) that is measured over the whole audio range in LU.

The loudness range reports the ratio between the loudest and the quietest non-silent sections. The audio is divided into small blocks. There is one audio block every second and each block lasts 3 seconds, so that the analyzed blocks overlap. The top 10 % of the quiet blocks and the top 5 % of the loud blocks are excluded from the final analysis. The calculated loudness range is the ratio between the loudest and quietest remaining audio blocks. This measurement helps you to decide how much compression or expansion must be applied to the audio.

An asterisk (*) after a loudness range value indicates that less than 1 minute of audio was analyzed.

Min. shows the minimum loudness range value in LU. Max. shows the maximum loudness range value in LU.

Note

EBU R 128 does not recommend loudness range measurement for audio shorter than 1 minute due to too few data points.

Time

Shows the overall duration of the loudness measurement.

The following module-specific settings are available in the Module Settings window:

Unit

Allows you to switch the meter scale between LUFS (absolute values) and LU (relative values).

Scale

Allows you to switch the meter between the EBU +9 scale and the EBU +18 scale.

Ref. Integrated

Sets a reference value for the integrated loudness. If higher values are detected, the loudness meter indicates clipping.

Tol. Integrated

Sets a tolerance value for the integrated loudness.

Ref. True Peak

Sets a reference value for the true peak level. If higher values are detected, the loudness meter indicates clipping.

Tol. True Peak

Sets a tolerance value for the true peak level.

Ref. Short-Term

Sets a reference value for the short-term loudness. If higher values are detected, the loudness meter indicates clipping.

Tol. Short-Term

Sets a tolerance value for the short-term loudness.

Ref. Momentary

Sets a reference value for the maximum momentary loudness. If higher values are detected, the loudness meter indicates clipping. The loudness meter indicates clipping, when the integrated reference value is reached.

Tol. Momentary

Sets a tolerance value for the maximum momentary loudness.

Ref. Range

Sets a reference value for the loudness range. If higher values are detected, the loudness meter indicates clipping.

Tol. Range

Sets a tolerance value for the loudness range.