%Changes throughout the release history of the AMT
%   
%   Version 1.0.0 (May 2021)
%   ==============================
%   Core functionality:
%     - core functions (`amt_*.m`) moved to the directory 'core'
%     - all auxdata, cache, and hrtf moved from sofaacoustics.org to amtoolbox.org
%     - NEW: automated toolbox download, new banner, new display style, availability check for matlab toolboxes and octave packages
%     - NEW: amt_stop: removes paths associated to current AMT session and deletes persistent variables in the AMT core functions
%     - NEW: amt_subdir: performs recursive search in subdirectories
%     - NEW: amt_extern: interface to external environments such as Python
%     - NEW: amt_configuration: provides configuration of the current AMT session, sets amt_cache, amt_auxdatapath, amt_auxdataurl, and amt_flags
%     - NEW: amt_info: information on the authorship, license, and technical requirements of a model
%     - emuexp renamed to amt_emuexp
%     - NEW: incremental version search in amt_cache and amt_load: search in older AMT versions for files if not found in current AMT version
%     - amt_disp: debug flag included, progress flag removed.
%     - amt version: module display removed
%     - lock of persistent variables added to the core functions
%
%   Signal-processing functionality:
%     - signal level convention switched to SI with $20 \mu Pa$ as reference for SPL calculation, i.e., RMS of corresponds to the SPL of 94 dB
%     - first dimension is time when calling a model
%
%   Common functions (was 'general' previously):
%     - siiweightings renamed to f2siiweightings
%     - setdbspl renamed to scaletodbspl
%     - bmdistance and greenwood integrated in f2bmdistance
%     - NEW: erb2fc
%     - NEW: f2erb
%     - NEW: fc2erb
%     - NEW: phon2sone
%     - NEW: sone2phon
%     - NEW: gammachirp
%     - NEW: erbest
%     - NEW: fade
%     - NEW: infamplitudeclip
%     - NEW: interpolation
%
%   Data:
%     - NEW: data_lyon2011
%     - NEW: data_li2020
%
%   Plot:
%     - NEW: plot_bruce2018
%     - NEW: plot_mckenzie2021
%     - NEW: plot_moore2016
%
%   Demos:
%     - NEW: demo_lyon2011
%     - NEW: demo_lyon2011_compressivefunction
%     - NEW: demo_lyon2011_impulseresponses
%     - NEW: demo_bruce2018
%     - NEW: demo_bruce2018_auditorynerveresponse
%     - NEW: demo_carney2015
%     - NEW: demo_ewert2000
%     - NEW: demo_king2019
%     - NEW: demo_verhulst2015
%     - NEW: demo_verhulst2018
%     - NEW: demo_hauth2020
%     - NEW: demo_chen2011
%     - NEW: demo_mckenzie2021
%     - NEW: demo_baumgartner2021
%     - NEW: demo_mclachlan2021
%
%   Experiments:
%     - bug fix: exp_gammatone
%     - NEW: exp_engel2021
%     - NEW: exp_bruce2018
%     - NEW: exp_osses2022
%     - NEW: exp_relanoiborra2019
%     - NEW: exp_verhulst2018
%     - NEW: exp_chen2011
%     - NEW: exp_mckenzie2021
%     - NEW: exp_osses2021
%     - NEW: exp_barumerli2021
%     - NEW: exp_baumgartner2021
%     - NEW: exp_li2020
%
%   Models and Modelstages:
%     - NEW: lyon2011
%     - NEW: verhulst2015
%     - NEW: verhulst2018
%     - NEW: bruce2018
%     - NEW: carney2015
%     - NEW: king2019
%     - NEW: relanoiborra2019
%     - NEW: hauth2020
%     - NEW: osses2021
%     - NEW: mckenzie2021
%     - NEW: chen2011
%     - NEW: moore2016
%     - NEW: baumgartner2021
%     - NEW: li2020
%     - NEW: barumerli2021
%
%
%   Version 0.10.0 (May 2020)
%   ==============================
%   
%   - baumgartner2020: sound-externalization model provided
%   - reijnier2014: ideal-observer spherical sound-localization model based on Bayesian statistics provided
%   - exp_reijniers2014: figures from conference proceedings Barumerli et al. (2020, AES and FA) evaluating reijniers2014 added.
%
%   Version 0.9.9 (September 2017)
%   ==============================
% 
%   - data_baumgartner2017 provided
%   - data_baumgartner2017looming provided)
%   - kelavas2015 improved (appears in the code and documentation now)
%   - bug #78 fixed: hohmann2002_process did not work for multiband input signals.
%
%   Version 0.9.8 (12.7.2017)
%   =========================
% 
%   Compatibility breaks:
%     - ``amt*`` --> ``amt_*``
%         - Use `amt_start` to start the AMT
%         - Legacy files provided but will be removed in the future. 
%         - amthelp --> amt_version
%     - gfb --> hohmann2002. Legacy files provided. See note #11 for more details.
%     - zilany2007humanized --> zilany2007. Legacy file provided.
%     - drnl --> lopezpoveda2001. Legacy file provided.
%     - modfilterbankepsm --> ewert2000. No legacy file. 
%     - HRTFs: only SOFA files allowed now.
%     - Functions creating/modifying signals have the prefix `sig_` now:
%         - Legacy files provided but will be removed in the future.
%        	- irns --> sig_yost1996
%        	- whitenoiseburst --> sig_whitenoiseburst
%        	- transposedtone --> sig_transposedtone
%       	- perfectsweep --> sig_linsweep
%        	- notchednoise --> sig_notchednoise
%        	- bmsin --> sig_lindemann1986
%        	- simulatedimpulseresponse --> sig_joergensen2011
%       	- itdsin --> sig_itdsin
%       	- ildsin --> sig_ildsin
%       	- itdildsin --> sig_itdildsin
%       	- competingtalkers -> sig_competingtalkers
%       	- breebaart2001siggen --> sig_breebaart2001
%       	- bincorrnoise --> sig_bincorrnoise
%       	- bandpassnoisefreq --> sig_bandpassnoise
%     - Model stages in `modelstages` have the format `modelXX_stageYY` now:
%         - modelXXstageYY --> modelXX_stageYY
%         - ffGn --> zilany2014_ffGn
%         - breebaart2001preproc --> breebaart2001_preproc
%         - No legacy files provided. Adapt your code if directly calling model stages from your code. 
% 
%   New
%     - baumgartner2017: sound externalization model
%     - baumgartner2016: level-dependent sagittal-plane sound localization model for NH and HI listeners
%     - hohmann2002: the gfb\_ framework of Gammatone filterbank integrated as hohmann2002 framework
%     - kelvasa2015: sound localization in cochlear-implant listeners
%     - emuexp: emulation of experiments using interative runs like 3-AFC
%     - breebaart2001_centralproc: decision stage from Breebaart et al. (2001). 
%     - exp_breebaart2001: reproduces results from Breebaart et al. (2001) based on emuexp
%     - model initiative: interface to the model initiative (Dietz et al. 2016)
% 
% 
%   Structural changes:
%     - baumgartner2014 decomposed into model stages
%     - exp_spille2013 merged into exp_dietz2011
%     - directories re-structured:
%         - main scripts of a model go to: `model`. They are called `nameyear`
%         - scripts with model stages (model scripts other than the main one) go to: `modelstages`. They are called `nameyear_postfix`
%         - scripts not being part of a specific model go to: `general`. They do not (!) start with model name.
%         - scripts generating audio signals go to: `signals`. They are called `sig_nameyear` or `sig_functionality`
%         - scripts returning measured data go to: `data`. They are called `data_nameyear`
%         - scripts with default parameters of other scripts go to: `defaults`. They are called `arg_callingfunction`
%         - files being compiled to mex files go to: `mex`. In order to be compiled, they must have the prefix `comp_`
%         - files being compiled to oct files go to: `oct`
%         - other files requiring compilation/installation go to: `bin`. Their compilation must be considered in `make.bat` (Windows) and `Makefile` (Linux/MacOS).
%         - HRTFs go to `hrtfs`. They are in SOFA and will be downloaded on the fly. 
%         - Lagecy files providing backwards compatibility fo to: `legacy`
%         - `binaural`, `monaural`, `speech`, `filters` removed
% 
%   Other updates:
%     - dietz2011: minor bug fixes
%     - data_joergensen2011: completion of data
%     - exp_baumgartner2014: new figures, compatibility improved
%     - demo_hohmann2002: new figures
%     - installation simplified (`amt_mex` does all the installation now)
% 
%   Version 0.9.7 (10.6.2015)
%   =========================
% 
%   New:
%     - Caching of data: see amt_cache and the cache directory.
%     - Automatic download of auxiliary data. See amt_load and the auxdata directory.
%     - Control for messages output in the command line. See amt_disp.
%     - SOFA files for HRTFs: requires SOFA API, see SOFAload.
%     - Models: zilany2014, joergensen2011, joergensen2013, georganti2013
%     - Signals: sig_joergensen2011
%     - Clean documentation (no errors, no warnings).
%     - makefile for Linux, compiling of cpp files
% 
%   Structure changes:
%     - arg\_ functions moved to arg directory, comp\_ functions moved to mex, directory comp removed
%     - plot* functions renamed to plot_* and moved to plot directory
%     - amt_start and amt_mex improved
%     - readme file for sourceforge added
%     - reference directory removed (it was a directory with original contributions to the AMT)
% 
%   Other changes:
%     - interpolation for various polar-angle samplings  
%     - added new experiment in exp_baumgartner2014: fig5_baumgartner2015aro
%     - stability improvements in baumgartner2014
%     - minor bugfix in demo_baumgartner2013 and doc update in baumgartner2014
%     - exp_lindemann1986: fig 14b disabled: it takes ages and is wrong anyway...
%     - added reference for verhulst2012
%     - wierstorf2013: additional files for HRTF handling removed, load the itd-to-angle look-up table with data_wierstorf2013.m now. 
%     - hrtf/enzner2008 removed (enzner2008 data are in auxdata now)
%     - langendijk2002: data and HRTFs removed from repository (are required data)
%     - changed the order of announcements on amt_start
%     - jelfs2011: removed dependency on read_hrir
%     - plotjelfs2011 moved to demo_jelfs2011.m (plotjelfs2011 was actually a demo).
%     - progress output supressed in the documentation
%     - amt_disp introduced for displaying information depending on the start-up condition of the AMT.
%     - enzner2008 and exp_enzner2008 split in the model and experiment part.
%     - exp_georganti2013 works for me. Documentation is missing yet.
%     - may2011 documentation integrated
%     - 2014 version of may2011 added. demo_may2011 works but documentation invalid yet.
%     - extractsp: stability improvement
%     - minor documentation and stability updates, new function baumgartner2014parametrization and functionalities in localizationerror added.
%     - Fixed imag ILD in dietz2011
%     - Added function to load some simulated monaural room impulses responses.
%     - documentation updates and use of SOFA's remote load functionality in data_baumgartner2014.
%     - major style overhaul of the Joergsen 2011 and 2013 models. Experiments included etc. Does not yet pass mat2doc, and sound files are missing.
%     - localizationerror: new performance measures added
%     - data_majdak2010 and ...2013ctc: Angles forced to be real valued.
% 
% 
%   Version 0.9.6
%   =============
% 
%   New: 
%     - Gammatone validation provided, including exp_gammatone, demo_gammatone, exp_hohmann2002, and demo_hohmann2002
%     - Wierstorf et al. (2013) provided, including wierstorf2013, exp_wierstorf2013, and integration with the SFS toolbox
% 
%   Fixes:
%     - data_goode1994: more details provided
%     - jelfs2011 works now with SOFA HRTFs stored in hrtf/jelfs2011/, e.g., kemar.sofa
%     - hohmann2007 naming resolved. hohmann2007 renamed to herzke2007, the primary model is called hohmann2002 now
%     - localizationerror: missing error types added
%     - exp_spille2013: uses lowpass f_inst
%     - dietz2011 improved to better reflect the corresponding publications