Steinberg WAVELAB 8.5 RETAIL SOFTWARE 45370 数据表

产品代码
45370
下载
页码 770
WaveLab Concepts
EBU Loudness Standard R-128
43
Display mode (Waveform/Spectrum/Loudness)
Snapshots
Master Section presets associated with the file
Deleting a companion file does not alter the audio contents.
Master Section presets are specific to WaveLab and can therefore not be 
integrated inside the various audio file headers.
Storing Companion Files in Another Location
By default, companion files are stored in the same location as the audio file. 
However, you can select another file location.
P
ROCEDURE
1.
In the Audio Files workspace, select Options > Folders.
2.
Select Companion files, and specify another file location.
EBU Loudness Standard R-128
The EBU loudness recommendation R-128 establishes well-defined methods to 
measure loudness, dynamics, and peak values, and also defines reference values to 
achieve for these measurements. Though the reference values are intended for the 
broadcast world, the measurement methods are helpful in any application dealing 
with audio and loudness control.
WaveLab supports these audio measurements in many places, for metering, audio 
analysis, and processing. The following text gives some basic information about the 
EBU R-128 standard. For more information, refer to the internet.
Loudness Measurement
This method takes into account the frequency sensitivity of the human ear to 
loudness levels. There are 3 types of measurements:
1)
Integrated loudness, also called programme loudness: this reports how loud 
an audio piece is, on average. This measurement uses a gating method to 
ignore long periods of silence.
2)
Short-term loudness: this measures the loudness every 1 second on an audio 
block of 3 seconds. This gives information about the loudest audio passages.
3)
Momentary loudness: every 100 ms, a range of 400 ms of audio is measured. 
This gives instantaneous feedback about the loudness.