Soft dB Tenor 24bits Data User Guide - Manual (Page 14)

Tenor Data Logger Soft dB inc.
4.2.3 Output Set-up
To activate the output on the Tenor system, the user must select the output(s) with the
green dot and specify the path of a wave file that contains the signal to generate. Read
sections 4.2.4 and 4.3 for more information on the selection and generation of an output
wave file. Output selection is done through the green dots of the following section of the
set-up tab.
Figure 8: Output set-up section
The Current Output File Info indicator displays the parameters of the currently-selected
output wave file. Be sure that the number of channels of the selected wave file matches
the number of selected outputs before launching the acquisition. The sampling frequency
specified in the wave file is not the sampling frequency used during acquisition : whatever
the wave sample rate, a sample rate of 48.8 kHz will be used. To avoid frequency shift
during generation with the Tenor, make sure the wave file has been created using a
sampling frequency of 48.8 kHz.
4.2.4 Input and Output Paths
The Tenor system uses the wave file format for recording and the signal generation. Both
the input and output file paths can be defined with the Output File Path and Input File Path
browsers (use the folder icon to access the browser).
If the acquisition is started with the Start/Stop (with input log) button, the interface creates
a wave file to save the input signals in 32-bit format. If an output wave file is specified, the
interface sends the signals in the wave file to the selected outputs (even in no log
acquisition mode). The output signals are always generated at the Tenor sample rate. Be
sure to use a wave file with the same sampling frequency to avoid frequency shift during
generation with the Tenor.
The Tenor system includes a wave file generation module that can be used to create a
multi-channel wave file for the outputs (see section 4.3 for more details). Once the output
file path is defined, the Current Output File Info indicator displays the parameters of the
current output wave file (number of channels, sample rate and the time length).
User Manual p. 14