cspctl(1) [suse man page]

cspctl(1)						      General Commands Manual							 cspctl(1)

NAME

       cspctl - Sound Blaster 16 ASP/CSP control program

SYNOPSIS

       cspctl command [-options] <filename>

DESCRIPTION

       cspctl  is a simple CSP microcode loader for Crative Sound Blaster 16ASP and some Sound Blaster AWE32 sound cards with Creative Signal Pro-
       cessor (CSP) chip (CT1748A) installed.  cspctl can also be used as a post-install function to snd-sb16-csp module to load default codec	at
       module  installation.  If CSP chip is succesfully detected and initialized, it will be installed as a hardware dependant device hwC0D2 into
       /dev/snd directory. Currently, following codecs can be loaded to CSP device:

	   wfm0001a.csp  QSound decoder
	   wfm0006a.csp  A-law codec
	   wfm0007a.csp  u-law codec
	   wfm0011a.csp  IMA ADPCM codec (distorted output for IMA test files)
	   wfm0200a.csp  Creative ADPCM codec (sounds like Intel/DVI IMA ADPCM compatible)
	   wfm0202a.csp  Fast Speech 8 codec
	   wfm0203a.csp  Fast Speech 10 codec

       These codecs are not yet supported by ALSA:

	   wfm0201a.csp  Text2Speech decoder

       Qsound microcode file has four functions, each function is a decoder for different sample rate. Rates for QSound functions #1, #2,  #3  and
       #4  are 44100, 22050, 11025 and 8000Hz respectively. IMA ADPCM and FastSpeech codecs are formed of two functions, the first one is for cap-
       ture and the second one is for playback. A-law and u-law codecs have only one function.	To  load  for  example	function  #2  from  QSound
       microcode file (decoder for 22050Hz), run as follows:

	   % cspctl load -f 2 -d QSound wfm0001a.csp

       After successful loading, /proc/asound/SB16/cspD2 will show:

	   Creative Signal Processor [v1.0]
	   State: -x--L
	   Codec: QSound [func #2]
	   Sample rates: 22050Hz
	   QSound decoder disabled

       With  QSound decoder microcode loaded, all simple PCM file formats can be played with QSound 180 degree positioning applied. QSound element
       is dynamically added into mixer structure as 3DEffect1-space element. It will only show if support for CSP  has	been  compiled	into  ALSA
       drivers,  CSP  chip  has been found, and QSound codec is loaded into CSP. When enabled, QSound position can be dynamically changed by mixer
       slider, and proc interface should follow the state of CSP chip and its current QSound position:

	   Creative Signal Processor [v1.0]
	   State: Qx-RL
	   Codec: QSound [func #2]
	   Sample rates: 22050Hz
	   QSound decoder enabled
	   Processing 16bit mono PCM samples
	   Qsound position: left = 0x9, right = 0x9

       Driver supports autoloading of u-Law, A-Law and Ima-ADPCM hardware codecs. Autoloading is active only when there is no microcode loaded	to
       CSP, and there is no need to preload appropriate *.csp files. To unload manually loaded microcode, you should run

	   % cspctl unload

       If  hardware  codec  microcode  has been manually loaded, then CSP will support only loaded PCM format and autoloading will be disabled. In
       such case, proc interface will show loaded codec properties:

	   Creative Signal Processor [v1.0]
	   State: -x--L
	   Codec: IMA-ADPCM [func #2]
	   Sample rates: All
	   PCM format ID: 0x400000 (16bit/-) [mono/stereo] [playback/-]

COMMANDS

       load   Load microcode from filename to CSP.

       unload Unload microcode from CSP.

OPTIONS

       -h, --help
	      Display a short help.

       -c card
	      Select a card number. Option defaults to 0.

       -f function
	      Select a function from microcode file. Option defaults to 1.

       -d description
	      Optional microcode description string.

AUTHOR

       Uros Bizjak <uros@kss-loka.si>.

								  April 27, 2000							 cspctl(1)

QSound(3qt)															       QSound(3qt)

NAME

       QSound - Access to the platform audio facilities

SYNOPSIS

       #include <qsound.h>

       Inherits QObject.

   Public Members
       QSound ( const QString & filename, QObject * parent = 0, const char * name = 0 )
       ~QSound ()
       int loops () const
       int loopsRemaining () const
       void setLoops ( int l )
       QString fileName () const
       bool isFinished () const

   Public Slots
       void play ()
       void stop ()

   Static Public Members
       bool isAvailable ()
       void play ( const QString & filename )
       bool available ()

DESCRIPTION

       The QSound class provides access to the platform audio facilities.

       Qt provides the most commonly required audio operation in GUI applications: asynchronously playing a sound file. This is most easily
       accomplished with a single call:

	       QSound::play("mysounds/bells.wav");

       A second API is provided in which a QSound object is created from a sound file and is played later:

	       QSound bells("mysounds/bells.wav");
	       bells.play();

       Sounds played using the second model may use more memory but play more immediately than sounds played using the first model, depending on
       the underlying platform audio facilities.

       On Microsoft Windows the underlying multimedia system is used; only WAVE format sound files are supported.

       On X11 the Network Audio System is used if available, otherwise all operations work silently. NAS supports WAVE and AU files.

       On Macintosh, ironically, we use QT (QuickTime) for sound, this means all QuickTime formats are supported by Qt/Mac.

       On Qt/Embedded, a built-in mixing sound server is used, which accesses /dev/dsp directly. Only the WAVE format is supported.

       The availability of sound can be tested with QSound::isAvailable().

       See also Multimedia Classes.

MEMBER FUNCTION DOCUMENTATION

QSound::QSound ( const QString & filename, QObject * parent = 0, const char * name = 0 )
       Constructs a QSound that can quickly play the sound in a file named filename.

       This may use more memory than the static play function.

       The parent and name arguments (default 0) are passed on to the QObject constructor.

QSound::~QSound ()
       Destroys the sound object. If the sound is not finished playing stop() is called on it.

       See also stop() and isFinished().

bool QSound::available () [static]
       Returns TRUE if sound support is available; otherwise returns FALSE.

QString QSound::fileName () const
       Returns the filename associated with the sound.

bool QSound::isAvailable () [static]
       Returns TRUE if sound facilities exist on the platform; otherwise returns FALSE. An application may choose either to notify the user if
       sound is crucial to the application or to operate silently without bothering the user.

       If no sound is available, all QSound operations work silently and quickly.

bool QSound::isFinished () const
       Returns TRUE if the sound has finished playing; otherwise returns FALSE.

       Warning: On Windows this function always returns TRUE for unlooped sounds.

int QSound::loops () const
       Returns the number of times the sound will play.

int QSound::loopsRemaining () const
       Returns the number of times the sound will loop. This value decreases each time the sound loops.

void QSound::play ( const QString & filename ) [static]
       Plays the sound in a file called filename.

       Example: sound/sound.cpp.

void QSound::play () [slot]
       This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

       Starts the sound playing. The function returns immediately. Depending on the platform audio facilities, other sounds may stop or may be
       mixed with the new sound.

       The sound can be played again at any time, possibly mixing or replacing previous plays of the sound.

void QSound::setLoops ( int l )
       Sets the sound to repeat l times when it is played. Passing the value -1 will cause the sound to loop indefinitely.

       See also loops().

void QSound::stop () [slot]
       Stops the sound playing.

       On Windows the current loop will finish if a sound is played in a loop.

       See also play().

SEE ALSO

       http://doc.trolltech.com/qsound.html http://www.trolltech.com/faq/tech.html

COPYRIGHT

       Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com.  See the license file included in the distribution for a complete license
       statement.

AUTHOR

       Generated automatically from the source code.

BUGS

       If you find a bug in Qt, please report it as described in http://doc.trolltech.com/bughowto.html.  Good bug reports help us to help you.
       Thank you.

       The definitive Qt documentation is provided in HTML format; it is located at $QTDIR/doc/html and can be read using Qt Assistant or with a
       web browser. This man page is provided as a convenience for those users who prefer man pages, although this format is not officially
       supported by Trolltech.

       If you find errors in this manual page, please report them to qt-bugs@trolltech.com.  Please include the name of the manual page
       (qsound.3qt) and the Qt version (3.3.8).

Trolltech AS							  2 February 2007						       QSound(3qt)