programs - programs developed at CARL and how to find out about them:

This is a brief overview of some of the programs in the CARL 
software distribution.  In addition to the help files, there are 
manual pages for most of these programs.  If you are not at CARL, there
are some programs you may not have as they are not distributed.

I. cmusic - Sound Synthesis System
    The CARL sound-synthesis program (reads scores and generates
    acoustic samples). See "man cmusic" for online documentation, and
    the CARL Startup Kit for "An Introduction to Sound Synthesis Using
    Cmusic".  In addition, many "help" files exist for various
    related programs and documentation (see below).
gens
    gen, gen0, gen1, gen2, gen3, gen4, gen5, gen6, ogen, chubby, cspline, 
    These are programs used with (or by) cmusic to generate stored
    functions.  For instance, gen1 creates straight-line functions
    between specified sets of points, gen5 produces a sum-of-sinusoids,
    each with arbitrary harmonic number, amplitude, and phase, chubby
    produces a sum of Chebychev polynomial functions (useful with
    waveshaping synthesis), cspline creates a "maximally smooth" curve
    which goes through a specified set of points, and gen0 "normalized"
    the peak amplitude of any function to 1.0 (or some other specified
    value).  A "help" file exists for each one. Say "help cmusic/gens" 
    for a general explanation, or "help cmusic/gens/gen1" to learn about 
    function generator gen1.
ugs
    These are documentation files for the cmusic unit generators.  
    "help ugs" gets a list of available unit generators.
    "help cmusic/ugs/osc" gets documentation on the osc unit generator.
cmusic.h, expr, info, scorebugs, commands 
    These are documentation files describing cmusic expressions, cmusic
    macros, a set of score debugging suggestions, and the various "set"
    options available in a cmusic score.  Say "help cmusic/expr", etc.

II. graphics - Graphics Hacks

pianoroll
    Program which generates a graphic display of information taken
    from a cmusic score.  Say "help pianoroll".
sndpath
    Program to graphically display and edit sound path, to use as input
    to the cmusic space unit generator, or with the quad gen command.

III. compose - Composing Programs

ccmp
    score generating language.  Say "help compose/ccmp".
mpl	      
    mpl is a Music Programming Language based on APL which produces
    scores for cmusic.  See "help compose/mpl" for further reading.
    (Not distributed)

IV. csound 

sndout, sndin, play, record
   The csound file system transfers acoustic samples to and from the
   soundfiles and the audio converters.  See "man csound/sndout", etc.
   for online documentation and the CARL 
   Startup Kit for "Introduction to the CARL Soundfile System".

siggens - Signal Generation

wave, impulse, noise
    Generate impulse and (shaped) noise signals, respectively.

B. sigproc - Signal Modification

chan, para
    Programs for doing multichannel and parallel-stream signal
    processing using UNIX pipes.  Say "help sigproc/para" and 
    "help sigproc/chan" as
    well as the CARL Startup Kit article "Musical Signal Processing in
    a UNIX Environment".
comb, reverb
    Programs for doing comb and nearly all-pass reverberation on
    acoustic sample data using UNIX pipes.
filter, fir
    The filter program does general purpose digital filtering using
    UNIX pipes.  The fir program allows a user to interactively design
    an FIR filter for use with the filter program.
gain, gaindelay, offset
    Programs for modifying the peak amplitude of a signal, or combining
    this operation with a delay feature, or adding a constant to a
    digital signal.  All use the UNIX pipe mechanism.
srconv
    Program for changing the sampling rate of a digital signal.


siganal - Signal Analysis

energy, hist, maximum, nonzero, peak, rms
    Programs for detecting various things about the amplitude levels in
    digital signals.
noteanal
    Program which attempts to segment acoustic samples according to
    where sounds (i.e., "notes") begin and end.
show
    Program to make a crude plot of a digital signal on a CRT
    terminal.
spect
    Program which displays successive, windowed FFTs of a digital
    signal on a CRT terminal.

V. Other Software

libcarl
    Contains all libraries developed at CARL, including libieee,
    libfrm, libjos, libsf, libran, and others.  Say "help lib/libcarl".

libfrm
    Contains several signal-handling programs used at CARL (such as
    getfloat and putfloat), and other miscellany, such as a program
    to convert any algebraic expression into a reverse polish list.
    Say "help lib/libfrm" for documentation.