Value vs Time
The Value vs Time profile computes the following levels over time:
- dB(A) vs time
- dB(B) vs time
- dB(C) vs time
- dB vs time
- RMS Level vs Time
- ISO532-1 Loudness vs time (sone)
- ISO532-1 Loudness level vs time (phon)
- Sharpness vs time (acum)
- DIN45692 Sharpness vs time (acum)
- Roughness vs Time
- Tonal Audibility ISO1996-2:2007 (dB) vs time
- DIN45681 / ISO/PAS 20065 Tonality vs time
- Average Tonality Aures (tu) vs time
- Articulation Index vs Time ANSI S3.5-1969
- Automotive Articulation Index vs Time (%)
- Frequency vs time ECMA-418-2 / ECMA74-G
- Psychoacoustic Tonality ECMA-418-2 / ECMA74-G (tuHMS) vs time
Note: When calculating levels using the "Value vs Time" profiles, the
default settings of the software are used for the calculation. For the Sharpness vs Time
indicators, Ansys Sound: Analysis and Specification does the calculation at every 2 ms of the signal and a lowpass filter with
a 8-Hz cutoff frequency is then applied to smooth out sharpness values over time.
To use specific parameters:
- Select the Custom Profile you want to use.
- Click Edit.
- In the Levels tab's Level vs Time section, click the Parameters button.
Refer to Parameters Overview for more information.
Note: RMS level vs. time can be directly calculated from the
Calculation menu and from the right-click menu when clicking on a
temporal signal. The calculation is done using the current Custom Profile settings, then the RMS level is displayed in a new
window.