By default, FCB groupbox is disabled. A sentence, is added in FCB option to explain when to use FCB.

File dialog (QFileDialog) use to select files or directory contain the option QFileDialog.DontUseNativeDialog. This option allow to open the file dialog in front of the MainWindow takig into account the directory option.

User Manual tab is deleted. The user manual is added with a pdf which can be opened by clicking on action menu -> Help -> User Manual.

Choice of the sample data (fine profile + sand target) are added below the interpolate fine profile button.

All QDoubleSpinbox in Measurement information and Calibration parameter are replaced by QlineEdit. Unit are moved outside of the QLineEdit in a QLabel.

A list of default value for the kt_corrected is created for Aqauscat and for all frequencies available in Aquascat.

Fine sediments table and sand sediment data are reorganize in horizotal layout. Color lists use to plot samples are simplified with less color.

Few corrections have been made on calibration, in particular, for the interpolation of the fine sediments profile. The user can invert several acoustic recording with a single calibration. There remains a prolem to display the plots, in particular, when the user switches from one to another acoustic data.

The user can display the noise fields for each frequency by clicking on button PLot_noise in the pre-processing tab.

Menu Help --> About : open a new window to display information of AcouSed, in particular, the logo, the version and the date. Licence, Copyright and Suport buttons are added. The user can click on each button to open a new window with the related information.

Information groupbox is re-organized. Frequency combobox and kt spinbox are moved to the top: it's more efficient for the user to change the kt.

The user can export raw acoustic backscatter data, displayed in the table of values, to csv file. Each acoustic file is exported to a csv file with the following default name : Table_ + name_of_file_aqa.

The list of pre-processed data to be renamed is updated trigerring SNR computation. The user can add or remove a file in the acoustic data tab and then, update signal preprocessing tab.

The option 'Import calibration file' is added. The user can choose either to import calibration (default) or to compute calibration.

Sediment calibration tab is updated with preprocessing tab. Calibration can be made with pre-processed data.

Acoustic recording data is updated. If data are pre-processed in the previous tab then pre-processed data of the acoustic recording are provided in Sample data tab. If data are not pre-processed, then raw data are provided in sample data tab.

Vertical profile plot of SSC sand is added and a red vertical line display the profile position 2D field. Measured vs Inverted SSC sand is added. User can choose sample to display.

Signal processing tab is completely reorganized. At the top from the left to the right : 1 - choice of acoustic recording data + noise data, 2 - Display the SNR plot, 3 - Display option (SNR, Rayleigh, Average). At the bottom, from the left to the right : 1 - plot pre-processed BS acoustic recording, 2 - Plot profil, 3 - List of preprocessed data

FCB computatuion and display are added on sediment calibration tab. By default, the position of the FCB vertical profile is set on the profile position of calibration samples. The user can choose the depth limits to fit the FCB profile with linear regression. The FCB profile is diplay on acoustic recording 2D field.

Acoustic inversion tab display results of the inversion computation for both, fine and sand sediments. The user can visualize the concentrations fields, plot vertical profiles of the concentrations and choose samples to compare measured SSC vs inverted SSC.

Inversion is added to AcouSed. The inversion tab is organised in two part. At the top, fine SSC 2D field is plotted. At the bottom, sand SSC 2D field is plotted. A combobox and a push button are insert on a line at the top. The user choose the acoustic data by clicking on the combobox and run the inversion computation by clicking on the button.

The sediment calibration tab is added to the software AcouSed. It includes selection of frequency, fine and sand sediments, linear interpolation of the profile of fine sediments concentration, computation of parameter ks, sv, X, alphaS and zeta.

Sound speed and sound attenuation in water are added group box of the measurements information. Sound attenuation is updated with the combobox frequency.

The sediment calibration tab includes plot of acoustic recordings and profile of the concentration of fine sediments. The user can choose the data, frequencies and select the samples for the calibration.

If the bottom is not detect in the first acoustic tab, then an error message is opened if the user try to plot the total concentration with z / h (in sample data tab).

Acoustic data tab is reorganized. GPS groupbox is moved to Display option groupbox. Double sliders, in bathymetry algorithm groupbox, are replaced by spinboxes.

Bottom can be detected before (BS_raw_data) and after (BS_cross_section) change limits of the acoustic recording.