WinISD versions (versions.txt in program path) Copyright (c) 1996-2004 Juha Hartikainen, Janne Ahonen. - dates are in dd.mm.yyyy format ------------------------------------------------------------- #0.50alpha7 [11.09.2004] Juha Hartikainen / Janne Ahonen New: - If project file is changed, program now asks if user wants to save the project. (Juha) - Added voice coil thermal simulation fields. Now you can simulate effect of voice coil heating based on temperature rise that you specify. You can also specify resistance temperature coefficient of voice coil material. (Janne) - Added several alignment options for closed and vented box. Program now suggests different alignments based on Qts value. (Janne) - Box alignment calculation now considers external resistance and reduction of Q as box has some absorption loss. Leak losses are not considered when calculating alignments. (Janne) - Added passive radiator extra mass dragging for passive radiator. Dragging vertically changes passive radiator extra mass => tuning frequency is changed. This requires that you enter some initial extra mass for passive radiator for this to work. (Janne) - Added showing of air density value to "Environment tab". (Janne) - Added option to "cross-calculate" vents. User can now specify physical vent properties, and tuning frequency is calculated according that length. This can help when studying existing boxes. No more guesswork. (Janne) - When changing environment values, physical vent dimensions stay constant, and box tuning is recalculated. This allows you to investigate temperature sensitivity of your design. (Janne) - Added calculation of first port resonance frequency. This shows frequency of first "organ pipe" resonance. Others are multiplies of this frequency. (Janne) - Added option to change end correction factor. (Janne) - Added drawing of -3 dB line. (Janne) - Added drawing of excursion limit. (Janne) - Added option to configure rms, peak or peak-to-peak excursion and air velocities. (Janne) - Added calculation of off-axis responses. User can now specify off-axis angle. (Janne) - Added simulation of various types of prototype filters. This is very nice feature, since now you can add various combinations of these filters, and see their combined impact on frequency response (magnitude and phase), cone excursion and group delay. You can also plot frequency response or group delay of equalizer/filter chain. EQ/Filter transfer function magnitude plot has its own plot limits. (Janne, Juha) - Added option relative cursor readings. Just doubleclick in plot window after setting to reference point to enable relative cursor readings. (Janne) - Added option to change and specify voice coil connection mode, all VCs in parallel or in series. (Janne) - Added amplifier apparent power graph. This shows apparent power taken from the feeding amplifier, to assess amplifier loading. (Janne) - Added parameter tracking to the driver editor. Now driver editor tracks which parameters were entered and which were calculated. (Janne) - Driver editor now internally recalculates all calculated parameters, when user enters new value for already entered parameter. This makes easy to correct entries. (Janne) - Driver editor now checks all parameters by calculating through all relations between parameters. This assures that data is always correct. (Janne) Changes: - Moved "check internet for new version" under "Help/online" menu (Juha) - Changed online support to point forums instead of email (Juha) - Changed text "Frc" to "Fsc" for more consistency, like Qts => Qtc. (Janne) - Calculation of models rewritten for better clarity. (Janne) Bugs fixed: - 'New project'-window now remembers last driver (Juha) - Many cosmetic fixes. (Juha) - Fixed toolbar colours if user was using customized colour scheme. (Juha) - Fixed bug where certain editboxes were hard to edit by hand (program was overwriting what you just typed) (Juha) #0.50alpha6 [27.05.2002] Juha Hartikainen New: - Added uninstall icon to program group (altought you'll never need it). - Vent tab in project window now displays vent cross area. - Added new drivers to database. - Distribution is now packaged with Wise Installer 9.0. - Driver Editor/Dimensions is now functional. - Some more drivers to database. - Help file now contains some great stuff :-) - Frequency labels in plot window. (finally!) - Added Gloss driver parameter. It describes how many percent the driver cone will move down when driver is faced down. - Added initial support for printing plots. There is a "Print" button in plot window for that. - Added new simulation "Maximum SPL", which tells the maximum SPL possible to get limited by either temperature or cone excursion. - Driver editor: Added calculation of Sd from Vas and Cms. Changes: - Unit labels are now with a little bigger font. - Tuned closed box Qtc and Frc calculation formula a bit. - Removed "Print" from main menu, as you can do it directly from plot window. - Options: 'OK'-button is now default, so you can easilly exit accepting changes with just hitting ENTER anywhere. ESC cancels all the changes and closes Options-window. - It is now possible to scroll plot window toolbar if it does not fit in window. - Driver editor asks wether existing file should be overwritten or not. - Tweaked driver database handling to be a bit more quicker I hope. Bugs fixed: - "Check internet for updates" shows it correctly if you already have the latest version. - Shortcut to help file pointed to wrong location. - Driver Editor : Sometimes Xlim, KLe and fLe were not cleared. - Fixed bug where plot window frequency limits were not updated when changed from options(restart was needed). #0.50alpha5 [03.03.2002] Juha Hartikainen Info: - Your comments about new design and new features is very important now, as I will release future versions based on YOUR comments. New: - Added more drivers to driver database. - Added (yet incomplete) explanation of different driver parameters to Help file. - Installer now asks wether you want to use metric or imperial unit system as default. - Added more tips to controls. (You can turn them on by clicking the "question mark"-button from toolbar. - Added initial support for Passive Radiator simulation. - Most tool windows (eg. signal generator) will now close with ESC key. - New button images for main window toolbar. - Added "Explanation of plot types" to help file. - "Open project" button has small arrow, and by clicking it you can quickly open some project from projects directory. - Active project window will be automatically raised to top after you release mouse button in plot window. - "File/Check internet for updates" is now functional. - Signal generator's "Get frequency from cursor" is now functional. - "Save project" from main menu is now functional. - Driver editor has now option to turn off auto calculation of unknown values. (Auto Calculate Unknowns) - If toolwindow (eg. Signal generator) gets behind other window (eg. plot window), hitting its button will bring it visible again. - You can close tiny value editor window by clicking enter or escape. Changes: - Older version history can be found from versions_old.txt. - Restructured the plot-type selection menu + some visual enhancements. - Grouped main window's buttons. - Changed driver editor that it will fit in 800x600 screen. - Redesigned plot window a bit (once again). Bugs fixed: - Driver editor might have locked if user entered Re value below 0.6. - Fixed the "Maximum Power"-plot for boxes with more than one driver. (Now shows overall system power handling) - Fixed problems on loading project files from systems with different date/decimal separator settings. - Driver editor: If driver to be saved contained characters not allowed in filenames in "Brand" or "Model" fields, program refused to save it. (illegal characters will be replaced by _ character) - Impedance plot was "calculated" even with insufficient driver parameters. - Clear button in driver editor now actually works. - Fixed several bugs in About box :-D #0.50alpha4 [10.01.2002] Juha Hartikainen New: - Driver data editor has now "Clear" button, which clears all fields (handy in case you are adding new driver from scratch). - Driver data editor defaults "Date Added" field to current date and "Data provided by" to Windows user name for all new drivers - When saving driver to disk, program suggest Brand+Model as filename. Changes: - Removed "SPL <- Fs, Vas, Qes" calculation from driver data editor because its inaccuracy. #0.50alpha3 [01.01.2002] Juha Hartikainen New: - Driver data editor can now calculate Cms from Fs and Mms. - Projects will now go to their own directory (Projects\) as default. - Plot window has button to bring up the Options dialog. Changes: - Series resistance of signal source is now set to 0.1 ohms at default (was 0.0 ohms). - Editing vent length is now disabled because reverse calculation (from length to tuning frequency) is not (yet) implemented. Fixes: - Tiny driver parameter window: "dia" replaced by Dd. - Fixed tab-order in driver data editor. #0.50alpha2 [12.12.2001] Juha Hartikainen New: - Driver editor has now more advanced "Calculate unknowns" funtionality. - Rewritten driver editor. - Signal generator has limited support for decimals, so now you can play your favourite 21.9820 Hz tune. - Added "Help mode" button to main windows toolbar. When this button is checked, you will see small help regarding each control you move the mouse over. - Started to write new help files from the scratch. - Improved plot window horizontal line drawing routine. Lines are now drawn also below 1 values, and only for multiples of 1, 2 or 5. - New outlook for project window. - You are now able to control delta-mass (=added mass to driver cone) for driver in project window. - This version is now able to save/load projects. File format is completely different to previous, and thus the file extension has been changed to .wpr - Added possibility to drag driver parameters from project to another. There is small driver icon in "Driver" tab, just drag it to another project's tab-selector and parameters gets copied. - Added "Signal source" tab to project window, where you can specify signal source power, and Rg and also listening distance (affects SPL plot). - Program warns user if illegal value is entered in Relative Humidity or Temperature on environment settings. Fixes: - Units got resetted (back to SI)sometimes mysteriously (fixed). - Plot drawing routine didn't draw last rightmost pixel in plot window. - "Snap to grid" works for plot window again. - Fixed strange problems with units after project was saved to different directory than program is at. - Impedance plot was slight off when multiple drivers were used in project. - "Save window positions" works again also for plot window. - If "New project" wizard suggested vented box, the picture wasn't updated to show vented box. - When user entered 0 in chamber volume or tuning frequency field on project window, and tried to drag the values with mouse, program caused floating point errors or other similiar misbehaviour. - Maximizing plot window caused "lockup", since there wasn't restore button visible anymore. Maximize button is now disabled. - Relative air humidity can now be also exactly 0. (Now don't ask me to come visit you if you have :) Changes: - Added kHz to frequency units. - Relative Humidity is now in scale of 0-100 percent, so people who have installed 0.50a1 NEED TO change value from "Options" dialog to 30 or so. - Changed "Gain" to read "Transfer function" in Options dialog as it is now in plot window. #0.50alpha1 [09.10.2001] Juha Hartikainen Info: - Due very large changes in WinISD, some parts of the program are unavailable. New: - Added "Environment settings" where you can set environment parameters, such as temperature, air humidy and air pressure. - Added advanced settings(Ql, Qa, Qp) for chambers. - Program is now able to simulate Cone excursion and Impedance + others. (Thanks to Janne Ahonen) - You can specify frequency limits (start and end) and all Y-axis limits for different plot-types. Just go to Options dialog (Alt-O). - Qtc and Fr are now shown for closed box, and Fr is shown for Bandpass 4th order. Changes: - Driver editor has now groups for "basic" and "advanced" parameters. You need to know all parameters in "advanced" group the get all the simulations out. - In project window, rear chamber now means the chamber behind the driver. So closed and vented box only has rear chamber. - Box parameters changing by mouse "drag" : volume changing reversed, it "controlling" the frequency response a bit easier. - Added some more decimals to certain units.