Soft dB Tenor 24bits Data User Guide - Manual (Page 19)

Tenor Data Logger Soft dB inc.
4.4 Launching the acquisition and monitoring
When the set-up is done, the user can click on the acquisition tab and launch the
acquisition. During acquisition, the interface presents the following information:
1) Input dynamic range and the global level of all selected inputs.
2) Input saturation and percentage of saturation of all selected inputs.
3) Up to four graphs of either the time signal, the instant power spectrum, the average
power spectrum or the global levels historic. The user can select the input/output
channel for each graph.
4) The acquisition buffer state. It allows verifying the real time acquisition/data
logging. Most of the time the real time acquisition/data logging is achieved, but
some events like a background software request, an Internet access or a standby
operation can limit the real time. The acquisition buffer is there to avoid the lost of
data during those special events (the length of the buffer is 84k samples by
channel). When the buffer is full, the real time acquisition is not achieved anymore.
In this case, the acquisition buffer state turns red. Note: some computers are not
enough powerful to allow the real time acquisition on all channels. In this case, we
suggest disabling the display (control Graph Update? At OFF) during the
acquisition to regain the real time acquisition.
During acquisition, the set-up portion of the instrument is no-longer available and the
interface switches to the acquisition tab. The user must stop the acquisition to change the
instrument set-up. The acquisition can launched in two modes:
1) No Log mode: In this mode, no wave file is created by the interface during the
acquisition. However, output logging is activated if an output wave file has been specified.
This mode is useful for testing the input dynamic and for using the Tenor as a simple
generator.
2) Log mode: In this mode, the instrument generates a wave log file. Also, output logging
is activated if an output wave file has been specified.
User Manual p. 19