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- Notes on WHAM 1.31
- ------------------
-
- WHAM (Waveform Hold and Modify) is a Windows 3.1 application for
- manipulating digitised sound. It can read and write Windows 3.1 WAVE files,
- raw eight-bit digitised sound files and files of several other formats
- (of which more may be added) and can perform various operations on this
- sound. WHAM can handle sounds of any size, restricted only by memory.
-
- Version 1.31 has no features that 1.3 did not have; however, several bugs
- have been fixed.
-
- Since releasing version 1.1 onto the Internet, I was pleasantly surprised
- at the amount of interest shown in it. Thanks to all the people who sent
- me email reporting bugs and making suggestions.
-
- New features in release 1.31
- ----------------------------
-
- - A bug within the Sun/NeXT audio (.au) format driver has been fixed.
- - A bug within WHAM which caused WHAM to crash in certain circumstances
- (often after playing a portion of a sound) has been fixed.
- - WHAM now looks in the executable's directory for sound format drivers.
- This means that you can associate files with WHAM and launch them from
- File Manager.
-
- New features in release 1.3
- ---------------------------
-
- - Sound recording is here! Yes, WHAM can record sound (assuming, of
- course, that you have a sound card).
- - External file formats; files are read and written using external
- DLLs. This means that more formats may be added in the future
- without changing the WHAM program itself. Files may also be saved in
- variable encodings.
- - 16-bit sounds are supported.
- - Improved file information handling; now all defined RIFF information
- chunks are supported, and some file formats can utilise these as well.
- - Yet more buttons
- - 3D dialogs; WHAM uses the Microsoft Ctl3D library, which makes
- all the dialogs look extra-sexy.
- - Your usual small changes, bug fixes and cosmetic tweaks.
-
- New features in release 1.2
- ---------------------------
-
- - Many bugs fixed. i.e., WHAM no longer crashes when cutting/copying
- sounds or stretching/shrinking large sounds. (Well, I hope it
- doesn't, anyway... :-) )
- - Resizable window.
- - "Zoom in" function. WHAM can change the scale and scroll position to
- show the selected portion of the current waveform in its entirety
- at the largest possible magnification.
- - Cursor in waveform window. Sound can be pasted at the cursor or
- played from the cursor onwards.
- - WHAM can be launched with a sound file name on the command line.
- - WHAM is compliant with Windows 3.1's Drag-and-Drop technology, and
- will accept files dropped from the File Manager.
- - Enhanced button bar. The Save and Paste buttons reveal a drop-down
- menu of buttons when clicked with the right button.
-
- New features in release 1.1
- ---------------------------
-
- - WHAM can now read and write Creative Voice .VOC files, Amiga
- IFF/8SVX sound files, Sun/NeXT .au (8-bit linear and Mu-Law)
- and Apple/SGI AIFF files
- - New display options. WHAM can now display the waveform at full or
- half height, and in solid or outline form.
- - Support for embedded information. WHAM can embed information (title,
- copyright, date, software, artist*, engineer*, technician*,
- comments*) in WAVE and IFF files, and read information that is in
- these files. If I find information formats for other file types
- (and, preferably, examples of these formats in use), I will add
- these.
- [* WAVE format only]
- - A more robust WAVE file reading mechanism (now recognises
- information in files and acts accordingly.)
- - More buttons at the top of the window.
- - Many bugs/glitches have been removed.
-
- Known bugs/problems:
- --------------------
-
- - The "stretch/shrink" function may not yield desirable results for
- all ratios, and may report an error on some.
- - The sound recording memory allocation routine could probably be
- improved and made faster (although this would involve either
- considerable blood, sweat and tears or proprietary Microsoft
- source code. :-) )
- - I have heard reports that the status line at the bottom of the
- main window does not redraw correctly on some accelerated video
- cards. This fault seems to be confined to specific hardware/driver
- combinations (only one person reported it), and thus I cannot test
- for it. Your mileage may vary.
- - If you have a card that cannot handle 16-bit sound files, WHAM
- will appear to fail to play such files. WHAM automatically loads
- MuLaw-encoded .au files as 16-bit files for optimum results.
- If you wish to play such files, you can reduce them to eight bits;
- however, doing so will obviously result in information loss.
-
-
- The Future
- ----------
-
- This may (or may not) be the last release of WHAM to be written in
- Turbo Pascal. However, at some time, WHAM will probably be recoded
- entirely in C/C++. This version will be redesigned more or less from
- scratch, and thus will be able to have features like:
-
- - More modularisation; as WHAM 1.3's sound formats are in external
- libraries, so may be effects, display formats, et cetera, in a
- future version of WHAM. A SDK of sorts may be available.
- - OLE support (perhaps for OLE 2.0).
- - MDI support; WHAM may be able to manipulate several sounds at once.
- - More file formats. WHAM will be able to read (and, in most cases,
- write) more types of files, as soon as I find new formats to
- implement (and that are worth implementing).
- - Mu-Law and ADPCM support. Microsoft are putting support for Mu-Law
- encoding and ADPCM compression in a new release of their RIFF
- specifications. When I get access to an upgraded Windows multimedia
- sound driver, I will adapt WHAM to manipulate Mu-Law-encoded sound
- files in native format and to read and write ADPCM-compressed
- sounds.
- - Support for stereo sounds.
- - High/low/band-pass filtering, independent pitch/speed changing and
- other really good features.
-
- Other Platforms
- ---------------
-
- Who knows what the future will bring? Today WHAM is a Windows application;
- tomorrow, who knows? If I have the time I may port it to other operating
- systems and platforms. Possible contenders are:
-
- - Unix/X; I now have Linux with X386 on my computer, and am tempted to
- do some X programming. A possible X WHAM incarnation may be written
- for X toolkit or Xview, and would be designed to work with Linux,
- although it would be modifiable for other systems.
- - Windows 4.0; if it's as good as everyone speculates, WHAM will probably
- be updated for it.
- - NeXTstep; if someone has a spare NeXTstation (preferred) or
- NeXTstep-ready 486, please send it to me and I will do my best to
- port WHAM to it :-)
-
- Please note; this is, at the moment, mere speculation. There are no firm plans
- for other platforms, and if I do port WHAM, it may take a while for me to do
- so.
-
-
- How To Contact Me
- -----------------
-
- If you notice any bugs in this program, or have any suggestions for
- improvements or enhancements, please contact me and let me know. If you
- really like this program and wish to make a donation (suggested size: $20-30),
- please send it to my address.
-
- If you have access to the Internet, you can contact me by email. This is
- the preferred way of communicating with me. My address is:
-
- acb@yoyo.cc.monash.edu.au
-
- If you don't have access to these networks, my snail-mail address is:
-
- Andrew Bulhak
- 21 The Crescent
- Ferntree Gully Vic 3156
- AUSTRALIA
-
- Acknowledgements
- ----------------
-
- WHAM 1.3 uses Microsoft Corporation's Ctl3D dialog enhancement library.
- This library was written entirely by Microsoft Corporation (I had nothing
- to do with it), and is used and distributed with permission.
-
- WHAM 1.3 contains a 64-bit long division routine which was taken, more or
- less in one piece, from sample code distributed by Microsoft Corporation.
- The sample code is used as permitted. Please note that Microsoft do not
- support this program in any way, and are not liable for anything that may
- happen.
-
- Warranty Disclaimer
- -------------------
-
- Andrew Bulhak ("The author") makes no warranty of any kind, expressed or
- implied, including any warranties of fitness for a particular purpose. In no
- event will the author be liable for any incidental or consequential damages
- arising from the use of, or inability to use, this program.
-
-
- Andrew Bulhak 25-8-1993 0:10:48
-