Select Loudness Menu
This menu is used to select the standard for loudness measurements in the current audio group. When entering this menu during initial setup of a newly created audio group, it shows just the "Loudness Type" option. When returning to this menu later, additional loudness parameters will be available for customization of the loudness measurement. The available options depend on the loudness standard selected.
Please note:
The selected loudness standard cannot be changed once the initial audio group creation has been completed.
• Loudness Type
This key is used to define the method used for measuring loudness. Beside Sound Pressure Level (SPL) measurement, the available options represent loudness measurements conforming to all relevant international standards. Also, a customer specific loudness measurement is available. The selected loudness type will be used for all single channel and summing loudness measurements in any instrument of this audio group that uses loudness measurement.
Options: |
|
SPL | ITU BS.1771 | EBU R128 | ATSC A/85 | ARIB | CALM | OP-59 | AGCOM | LEQ(M) | TASA | SAWA | Custom |
Default value: |
|
none |
Please note:
Having selected one of the loudness standards ITU BS.1771, EBU R128, ATSC A/85, ARIB, CALM, OP-59, AGCOM, LEQ(M), TASA, or SAWA, most parameters will be fixed to the values recommended in that standard. If you prefer to edit those parameters individually, select the "Custom" loudness type instead.
Please note:
On TMR7 Smart the "Custom" mode is not available.
SPL Loudness Parameters section
• Weighting Filter
This key is used to set the weighting filter for SPL measurements.
Options: |
|
linear | A (Leq(A)) | C | CCIR (Leq(M)) | ITU BS.1770 (k) |
Default value: |
|
A (Leq(A)) |
• Integration
This key is used to set the integration time for SPL measurements.
Options: |
|
slow | fast |
Default value: |
|
fast |
• Reference Level
This key is used to set the reference level for SPL measurements.
Options: |
|
68 to 88 dB in steps of 1 dB |
Default value: |
|
78 dB |
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ITU BS.1771 Loudness Parameters section
After ITU BS.1771 mode was selected for loudness measurements, all loudness parameters are set to their default values recommended in ITU-R BS.1770-4/1771-1.
• Scale
This key is used to select the scale for ITU loudness bargraphs. The available options are "ITU+9" for relative measurements (unit: LU) and "ITU0" for absolute measurements (unit: LKFS).
Options: |
|
ITU+9: +9..-18 LU | ITU0: 0..-30 LKFS |
Default value: |
|
ITU+9: +9..-18 LU |
• Weighting Filter
In ITU BS.1771 loudness mode, the weighting filter is fixed to the K filter defined in the ITU recommendation.
Default value: |
|
ITU BS.1770 (k) |
• Target Level
This field displays the fixed value of -24 LKFS as defined in the ITU recommendation. The Target Level is used as the absolute reference for relative ITU loudness measurements in LU.
• Time & Gate
The "Time & Gate" menu entered with the "Display" key displays the fixed time constants and gate parameters for ITU loudness measurements.
• Channel Weighting
The "Loudness Channel Weighting" menu entered with the "Display" key displays the fixed channel levels for summing loudness measurements.
• Label
The "Loudness Labels" menu entered with this key is used to set individual labels for the "Momentary", "Short" and "Integrated" loudness measurements defined by the ITU recommendation.
• Test Time Control
The "Test Time Control" menu entered with this key is used to set parameters for the automated Start/Stop control of loudness measurements.
• Tolerance Levels
The "Tolerance Levels" menu entered with this key is used to configure individual upper and lower tolerance ranges for the M, S, and I values. Also the headroom and the Over sensitivity threshold for the True Peak value can be adjusted.
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EBU R128 Loudness Parameters section
After EBU mode was selected for loudness measurements, all loudness parameters are set to their default values recommended in EBU R128.
• Scale
This key is used to select the scale for EBU loudness bargraphs. The available options are "EBU+9", "EBU+3" and "EBU+18" for relative measurements (unit: LU) and "EBU+9a", and "EBU+18a" for absolute measurements (unit: LUFS).
Options: |
|
EBU+9: +9..-18 LU | EBU+3: +3..-18 LU | EBU+18: +18..-36 LU | EBU+9a: 14..-41 LUFS | EBU+18a: -5..-59 LUFS |
Default value: |
|
EBU+9: +9..-18 LU |
• Weighting Filter
In EBU loudness mode, the weighting filter is fixed to the K filter defined in the ITU BS.1771 recommendation.
Default value: |
|
ITU BS.1770 (k) |
• Target Level
This field displays the fixed value of -23 LUFS as defined in the EBU R128 recommendation. The Target Level is used as the absolute reference for relative EBU loudness measurements in LU.
• Time & Gate
The "Time & Gate" menu entered with the "Display" key displays the fixed time constants and gate parameters for EBU loudness measurements.
• Channel Weighting
The "Loudness Channel Weighting" menu entered with the "Display" key displays the fixed channel levels for summing loudness measurements.
• Label
The "Loudness Labels" menu entered with this key is used to set individual labels for the "Momentary", "Short" and "Integrated" loudness measurements defined by the EBU recommendation.
• Test Time Control
The "Test Time Control" menu entered with this key is used to set parameters for the automated Start/Stop control of loudness measurements.
• Tolerance Levels
The "Tolerance Levels" menu entered with this key is used to configure individual upper and lower tolerance ranges for the M, S, and I values. Also the headroom and the Over sensitivity threshold for the True Peak value can be adjusted.
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ATSC A/85 Loudness Parameters section
After ATSC mode was selected for loudness measurements, all loudness parameters are set to their default values recommended in ATSC A/85.
• Scale
This key is used to select the scale for ATSC A/85 loudness bargraphs. The available options are "ITU+9" for relative measurements (unit: LU) and "ATSC0" and "ATSC0a" for absolute measurements (unit: LKFS).
Options: |
|
ITU+9: +9..-18 LU | ATSC0: 0..-60 LKFS | ATSC0a: 0..-30 LKFS |
Default value: |
|
ATSC0: 0..-60 LKFS |
• Weighting Filter
In ATSC loudness mode, the weighting filter is fixed to the K filter defined in the ITU BS.1771 recommendation.
Default value: |
|
ITU BS.1770 (k) |
• Target Level
This field displays the reference value -24 LKFS as defined in the ATSC A/85 recommendation. The Target Level is used as the absolute reference for relative ATSC loudness measurements in LU.
• Time & Gate
The "Time & Gate" menu entered with the "Display" key displays the fixed time constants and gate parameters for ATSC A/85 loudness measurements.
• Channel Weighting
The "Loudness Channel Weighting" menu entered with the "Display" key displays the fixed channel levels for summing loudness measurements.
• Label
The "Loudness Labels" menu entered with this key is used to set individual labels for the "Momentary", "Short" and "Integrated" loudness measurements defined by the ATSC recommendation.
• Test Time Control
The "Test Time Control" menu entered with this key is used to set parameters for the automated Start/Stop control of loudness measurements.
• Tolerance Levels
The "Tolerance Levels" menu entered with this key is used to configure individual upper and lower tolerance ranges for the M, S, and I values. Also the headroom and the Over sensitivity threshold for the True Peak value can be adjusted.
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ARIB Loudness Parameters section
After ARIB mode was selected for loudness measurements, all loudness parameters are set to their default values recommended in ARIB.
• Scale
In ARIB loudness mode, the scale parameter is fixed to the ATSC0: 0...-60 LKFS scale.
Default value: |
|
ATSC0: 0...-60 LKFS |
• Weighting Filter
In ARIB loudness mode, the weighting filter is fixed to the K filter defined in the ITU recommendation.
Default value: |
|
ITU BS.1770 (k) |
• Target Level
This field displays the value of -24 LKFS. The Target Level is used as the absolute reference for relative ARIB loudness measurements in LU.
• Time & Gate
The "Time & Gate" menu entered with the "Display" key displays the fixed time constants and gate parameters for ARIB loudness measurements.
• Channel Weighting
The "Loudness Channel Weighting" menu entered with the "Display" key displays the fixed channel levels for summing loudness measurements.
• Label
The "Loudness Labels" menu entered with this key is used to set individual labels for the "Momentary", "Short" and "Integrated" loudness measurements defined by the ITU recommendation.
• Test Time Control
The "Test Time Control" menu entered with this key is used to set parameters for the automated Start/Stop control of loudness measurements.
• Tolerance Levels
The "Tolerance Levels" menu entered with this key is used to configure individual upper and lower tolerance ranges for the M, S, and I values. Also the headroom and the Over sensitivity threshold for the True Peak value can be adjusted.
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CALM Loudness Parameters section
After CALM mode was selected for loudness measurements, all loudness parameters are set to their default values recommended in CALM.
• Scale
This key is used to select the scale for CALM loudness bargraphs. The available options are "ITU+9" for relative measurements (unit: LU) and "ATSC0" and "ATSC0a" for absolute measurements (unit: LKFS).
Options: |
|
ITU+9: +9..-18 LU | ATSC0: 0..-60 LKFS | ATSC0a: 0..-30 LKFS |
Default value: |
|
ATSC0: 0...-60 LKFS |
• Weighting Filter
In CALM loudness mode, the weighting filter is fixed to the K filter defined in the ITU recommendation.
Default value: |
|
ITU BS.1770 (k) |
• Target Level
This field displays the value of -24 LKFS. The Target Level is used as the absolute reference for relative CALM loudness measurements in LU.
• Time & Gate
The "Time & Gate" menu entered with the "Display" key displays the fixed time constants and gate parameters for CALM loudness measurements.
• Channel Weighting
The "Loudness Channel Weighting" menu entered with the "Display" key displays the fixed channel levels for summing loudness measurements.
• Label
The "Loudness Labels" menu entered with this key is used to set individual labels for the "Momentary", "Short" and "Integrated" loudness measurements defined by the ITU recommendation.
• Test Time Control
The "Test Time Control" menu entered with this key is used to set parameters for the automated Start/Stop control of loudness measurements.
• Tolerance Levels
The "Tolerance Levels" menu entered with this key is used to configure individual upper and lower tolerance ranges for the M, S, and I values. Also the headroom and the Over sensitivity threshold for the True Peak value can be adjusted.
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OP-59 Loudness Parameters section
After OP-59 mode was selected for loudness measurements, all loudness parameters are set to their default values recommended in OP-59.
• Scale
This key is used to select the scale for OP-59 loudness bargraphs. The available options are "ITU+9" for relative measurements (unit: LU) and "ITU0", "ATSC0" and "ATSC0a" for absolute measurements (unit: LKFS).
Options: |
|
ITU+9: +9..-18 LU | ITU0: 0..-30 LKFS | ATSC0: 0..-60 LKFS | ATSC0a: 0..-30 LKFS |
Default value: |
|
ATSC0: 0...-60 LKFS |
• Weighting Filter
In OP-59 loudness mode, the weighting filter is fixed to the K filter defined in the ITU recommendation.
Default value: |
|
ITU BS.1770 (k) |
• Target Level
This field displays the value of -24 LKFS. The Target Level is used as the absolute reference for relative OP-59 loudness measurements in LU.
• Time & Gate
The "Time & Gate" menu entered with the "Display" key displays the fixed time constants and gate parameters for OP-59 loudness measurements.
• Channel Weighting
The "Loudness Channel Weighting" menu entered with the "Display" key displays the fixed channel levels for summing loudness measurements.
• Label
The "Loudness Labels" menu entered with this key is used to set individual labels for the "Momentary", "Short" and "Integrated" loudness measurements defined by the ITU recommendation.
• Test Time Control
The "Test Time Control" menu entered with this key is used to set parameters for the automated Start/Stop control of loudness measurements.
• Tolerance Levels
The "Tolerance Levels" menu entered with this key is used to configure individual upper and lower tolerance ranges for the M, S, and I values. Also the headroom and the Over sensitivity threshold for the True Peak value can be adjusted.
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AGCOM Loudness Parameters section
After AGCOM mode was selected for loudness measurements, all loudness parameters are set to their default values recommended in AGCOM.
• Scale
This key is used to select the scale for AGCOM loudness bargraphs. The available options with LU unit are used for relative measurements and with LKFS unit for absolute measurements.
Options: |
|
EBU+9: +9..-18 LU | EBU+3: +3..-18 LU | EBU+18: +18..-36 LU | EBU+9a: 14..-41 LUFS | EBU+18a: -5..-59 LUFS | ITU0: 0..-30 LKFS | ATSC0: 0..-60 LKFS | ATSC0a: 0..-30 LKFS |
Default value: |
|
ATSC0: 0...-60 LKFS |
• Weighting Filter
In AGCOM loudness mode, the weighting filter is fixed to the K filter defined in the ITU recommendation.
Default value: |
|
ITU BS.1770 (k) |
• Target Level
This field displays the value of -24 LKFS. The Target Level is used as the absolute reference for relative AGCOM loudness measurements in LU.
• Time & Gate
The "Time & Gate" menu entered with the "Display" key displays the fixed time constants and gate parameters for AGCOM loudness measurements.
• Channel Weighting
The "Loudness Channel Weighting" menu entered with the "Display" key displays the fixed channel levels for summing loudness measurements.
• Label
The "Loudness Labels" menu entered with this key is used to set individual labels for the "Momentary", "Short" and "Integrated" loudness measurements defined by the ITU recommendation.
• Test Time Control
The "Test Time Control" menu entered with this key is used to set parameters for the automated Start/Stop control of loudness measurements.
• Tolerance Levels
The "Tolerance Levels" menu entered with this key is used to configure individual upper and lower tolerance ranges for the M, S, and I values. Also the headroom and the Over sensitivity threshold for the True Peak value can be adjusted.
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LEQ(M) Loudness Parameters section
After LEQ(M) mode was selected for loudness measurements, all loudness parameters are set to their default values recommended in LEQ(M).
• Scale
This key is used to select the scale for LEQ(M) loudness bargraphs. The available option TASA is used for motion picture trailer volume measurements, and the SAWA option is used for digital screen advertising measurements.
Options: |
|
TASA | SAWA |
Default value: |
|
TASA |
• Weighting Filter
This key is used to set the weighting filter for LEQ(M) measurements.
Options: |
|
linear | A (Leq(A)) | C | CCIR (Leq(M)) | ITU BS.1770 (k) |
Default value: |
|
A (Leq(A)) |
• Reference Level
This key is used to set the reference level for LEQ(M) measurements.
Options: |
|
68 to 88 dB in steps of 1 dB |
Default value: |
|
78 dB |
• Time & Gate
The "Time & Gate" menu entered with the "Display" key displays the fixed time constants and gate parameters for LEQ(M) loudness measurements.
• Label
The "Loudness Labels" menu entered with this key is used to set individual labels for the "Momentary", "Short" and "Integrated" loudness measurements defined by the ITU recommendation.
• Test Time Control
The "Test Time Control" menu entered with this key is used to set parameters for the automated Start/Stop control of loudness measurements.
• Tolerance Levels
The "Tolerance Levels" menu entered with this key is used to configure individual upper and lower tolerance ranges for the M, S, and I values. Also the headroom and the Over sensitivity threshold for the True Peak value can be adjusted.
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TASA Loudness Parameters section
After TASA mode was selected for loudness measurements, all loudness parameters are set to their default values recommended in TASA.
• Scale
In TASA loudness mode, TASA is fixed as scale for motion picture trailer volume measurements.
• Weighting Filter
This key is used to set the weighting filter for TASA measurements.
Options: |
|
linear | A (Leq(A)) | C | CCIR (Leq(M)) | ITU BS.1770 (k) |
Default value: |
|
A (Leq(A)) |
• Reference Level
In TASA loudness mode, 85 dB is fixed as reference level for TASA measurements.
• Time & Gate
The "Time & Gate" menu entered with the "Display" key displays the fixed time constants and gate parameters for TASA loudness measurements.
• Label
The "Loudness Labels" menu entered with this key is used to set individual labels for the "Momentary", "Short" and "Integrated" loudness measurements defined by the TASA recommendation.
• Test Time Control
The "Test Time Control" menu entered with this key is used to set parameters for the automated Start/Stop control of loudness measurements.
• Tolerance Levels
The "Tolerance Levels" menu entered with this key is used to configure individual upper and lower tolerance ranges for the M, S, and I values. Also the headroom and the Over sensitivity threshold for the True Peak value can be adjusted.
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SAWA Loudness Parameters section
After SAWA mode was selected for loudness measurements, all loudness parameters are set to their default values recommended in SAWA.
• Scale
In SAWA loudness mode, SAWA is fixed as scale for motion picture trailer volume measurements.
• Weighting Filter
This key is used to set the weighting filter for SAWA measurements.
Options: |
|
linear | A (Leq(A)) | C | CCIR (Leq(M)) | ITU BS.1770 (k) |
Default value: |
|
A (Leq(A)) |
• Reference Level
In SAWA loudness mode, 82 dB is fixed as reference level for SAWA measurements.
• Time & Gate
The "Time & Gate" menu entered with the "Display" key displays the fixed time constants and gate parameters for SAWA loudness measurements.
• Label
The "Loudness Labels" menu entered with this key is used to set individual labels for the "Momentary", "Short" and "Integrated" loudness measurements defined by the SAWA recommendation.
• Test Time Control
The "Test Time Control" menu entered with this key is used to set parameters for the automated Start/Stop control of loudness measurements.
• Tolerance Levels
The "Tolerance Levels" menu entered with this key is used to configure individual upper and lower tolerance ranges for the M, S, and I values. Also the headroom and the Over sensitivity threshold for the True Peak value can be adjusted.
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Custom Loudness Parameters section
After Custom mode was selected for loudness measurements, all loudness parameters are set to the values recommended in EBU R128 as default. Alternatively, using the "Select Loudness Type" button of the "Set to default" option (see below), ITU BS.1771 or ATSC A/85 can be selected as starting point for configuring the Custom mode as well. All parameters can be edited individually in Custom mode.
Please note:
The "Custom" mode is not available on TMR7 Smart.
• Scale
This key is used to select the scale for loudness bargraphs. The options with LU units are used for relative measurements. The options with LUFS or LKFS units are used for absolute measurements.
Options: |
|
EBU+9: +9..-18 LU | EBU+9a: 14..-41 LUFS | EBU+3: +3..-18 LU | EBU+18: +18..-36 LU | EBU+18a: -5..-59 LUFS | EBU0: 0..-60 LUFS | ITU+9: +9..-18 LU | ITU0: 0..-30 LUFS | ATSC0: 0..-60 LKFS | ATSC0a: 0..-30 LKFS |
Default value: |
|
EBU+9: +9..-18 LU |
• Weighting Filter
In Custom loudness mode, the weighting filter is fixed to the K filter defined in the ITU recommendation.
Default value: |
|
ITU BS.1770 (k) |
• Target Level
The Target Level is used as the absolute reference for relative loudness measurements in LU.
Options: |
|
-30 to -10 LUFS in steps of 1 LUFS |
Default value: |
|
-23 LUFS |
• Time & Gate
The "Time & Gate" menu entered with this key is used to set time constants and gate parameters for Custom loudness measurements.
• Channel Weighting
The "Loudness Channel Weighting" menu entered with this key is used to set the individual channel levels for summing loudness measurements.
• Label
The "Loudness Labels" menu entered with this key is used to set individual labels for the "Momentary", "Short" and "Integrated" loudness measurements.
• Test Time Control
The "Test Time Control" menu entered with this key is used to set parameters for the automated Start/Stop control of loudness measurements.
• Set to default
The "Select loudness type" menu entered with this key is used to set any loudness parameters edited in this menu back to their default values. This also affects the parameters in the "Time & Gate" and "Channel Weighting" submenus, but not in the "Labels" submenu.
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