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- ┌──────────────────────┐
- │ XSB16 Library 1.0 │
- └──────────────────────┘
-
- This library lets you record and playback sounds using your SB16.
- The included library uses LARGE memory model, with Borland 3.1 DOS
- compiler.
-
-
- Two Sound Blaster 16 access modes are implemented:
-
- - STANDARD mode: play OR record.
-
- - CONCURRENT mode: play AND record simultaneously.
-
-
- To use the STANDARD mode, use the xsnd_???(), xsnd16_???() or
- xsnd8_???() functions. This function set offers to the programmer a
- high level interface to audio playback or recording, but allows him to
- directly access the DMA buffers and SB interrupt. So you can perform
- playback or recording eficiently, in your favourite way, without any low
- level programming at all. It's actually powerfull and easy to use!
- This functions program directly the SB16, and do not use any of the
- CreativeLabs drivers. Nevertheless, no automatic hardware detection is
- implemented. You MUST have the BLASTER environment string correctly
- set!!
-
-
- To use the CONCURRENT mode, use the sb16io_???() funcion set. This
- allows you to simultaneously perform recording and playback with your
- Sound Blaster 16 audio card!!!!. Make sure that the BLASTER environment
- string is correctly set. This mode only works if the 16 bit DMA channel
- works fine in your computer (the <H> field of your BLASTER environment
- string should be 5, 6 or 7). In this mode, your Sound Blaster 16 will be
- able to record 8 bit samples and, at the same time, playback 16 bit
- samples. Or the inverse, record 16 bit samples and playback 8 bit
- samples. All the operations use DMA transfers, and the user has direct
- access to DMA buffers and to Sound Blaster interrupt service function.
-
-
-
- ┌───────────────────────────┐
- │ Shareware restrictions │
- └───────────────────────────┘
-
- This shareware library has the following working restrictions:
-
- - No documentation is included. Just some sample C programs where
- you can see some of the functionality.
-
- - It will use 7500 Hz sampling rate, no matter the value
- you try to program. SB16 produces a backgroud hiss noise
- in your speakers at such a low sampling rate.
-
- - In CONCURRENT mode, it will use a block size of 4096 samples, no
- matter the value you try to program. This block size is the basic
- chunk that the library records/plays. It is actually quite a large
- value, and you will get a long delay between record/playback,
- specially at 7500 Hz :^)
-
- - In CONCURRENT mode, from time to time the library will return a
- registration audio message instead of the actually recorded
- signal (it's me saying 'register!').
-
-
-
- ┌─────────────────┐
- │ Registering │
- └─────────────────┘
-
- To register, send me 30$ (US DOLARS) or 3000ptas. (SPAIN) using the
- included registration form (file REGISTER.TXT). If you register, you
- will get:
-
- - Full source code for the library, without any of the restrictions
- present in the shareware version. It uses Borland C 3.1, but is
- structured in such a way to allow easy porting to other compilers,
- as Microsoft C. The source files include also modules for DMA
- programming, DMA buffer allocation and management, interrupt
- management, I/O ports management and Sound Blaster family DSP
- programming. All this modules are self-contained and completely
- reusable for your own applications.
-
- - Source code and documentation for the included MIX.EXE program,
- with support also for SB and SBPro. The included MIX.EXE program
- lets you save to file and restore your SB16 mixer easily. You can
- keep all your preferred mixer configuration in files, and load
- them when you need and in a fast way.
-
- - Full documentation (specify english or spanish).
-
- - Three weeks technical support (starting at the first consult)
- if you have Internet or FidoNet network access, or two months
- if you only have snail-mail :-)
-
- - If you have Internet access, you'll also get freely all the updates,
- bug fixes and new releases of the complete library. Otherwise, you
- will only get one update by air-mail, when I'll consider that it
- worths.
-
-
-
- ┌─────────────┐
- │ File list │
- └─────────────┘
-
- readme.txt ...... This file.
- register.txt .... Registration form.
- xsb16l.lib ...... The large model library. Restricted shareware version.
- mix.exe ......... A program to control the SB16 mixer.
-
- include\tdef.h ... Header file. Type definitions.
- include\sb16io.h . Headir file. Use this for concurrent play&record.
- include\xsnd.h ... Header file. Use this for normal sb16 interface.
-
- samples\caution.txt .. Read before running the sample programs.
- samples\*.c .......... Source code for some sample programs.
- samples\*.exe ........ Compiled sample programs, using a non-restricted
- complete library, not the shareware one.
-
- NOTE: when using PKUNZIP to unpack this files, be sure to extract
- files using -d option to get files in their correct directory!
-
- .................................................................
-
- For any question or request, please contact the author:
-
- Borja Etxebarria
- Tomas Olabarri 9-5B
- 48930 Getxo - Bizkaia
-
- e-mail: borja@bips.bi.ehu.es
- jtbecgob@bi.ehu.es
- Fidonet: 2:344/3.64
-
-
-