Difference between revisions of "Geopsy: Decimate amplitude"
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| + | [[Image:DecimateAmp.png|thumb|right|250px|Decimate Amplitude pop-up window.]] | ||
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'''Decimate amplitude''', reached from the [[Geopsy: Waveform Menu|Waveform menu]], lower the quality of signals in the active [[Geopsy: Signal Viewer|signal viewer]]. | '''Decimate amplitude''', reached from the [[Geopsy: Waveform Menu|Waveform menu]], lower the quality of signals in the active [[Geopsy: Signal Viewer|signal viewer]]. | ||
By clicking on Decimate amplitude, a pop-up window appears with the following options: | By clicking on Decimate amplitude, a pop-up window appears with the following options: | ||
*''Absolute maximum number of steps'' is the number of amplitude bins that should be used for positive values. Ex: a value of 1 leads to three amplitude bins: -1, 0 and 1 (1-bit data). | *''Absolute maximum number of steps'' is the number of amplitude bins that should be used for positive values. Ex: a value of 1 leads to three amplitude bins: -1, 0 and 1 (1-bit data). | ||
| − | * | + | *''Amplitude reference'' allows to define the value of largest amplitude bin. It can be set to: |
**''Value'', i.e. a specified value, e.g. 1 Volt to simulate a 2V peak-to-peak digitization. | **''Value'', i.e. a specified value, e.g. 1 Volt to simulate a 2V peak-to-peak digitization. | ||
**''Maximum'' to set it to the maximum value of the active signals. | **''Maximum'' to set it to the maximum value of the active signals. | ||
Revision as of 16:25, 10 March 2010
Decimate amplitude, reached from the Waveform menu, lower the quality of signals in the active signal viewer.
By clicking on Decimate amplitude, a pop-up window appears with the following options:
- Absolute maximum number of steps is the number of amplitude bins that should be used for positive values. Ex: a value of 1 leads to three amplitude bins: -1, 0 and 1 (1-bit data).
- Amplitude reference allows to define the value of largest amplitude bin. It can be set to:
- Value, i.e. a specified value, e.g. 1 Volt to simulate a 2V peak-to-peak digitization.
- Maximum to set it to the maximum value of the active signals.
Decimate amplitude can be used to test the robustness of a signal processing to the quality of the recordings. It allows to simulate recordings done by low quality digitizers. Decimate amplitude modifies the temporary signals in the active viewer.
