These are the objects that come with the zexy-external

============================ DSP~ ===============================

---------------------------- IO~ --------------------------------
sfplay		play back (multi-channel) soundfiles
sfrecord	record (multichannel) soundfiles

------------------------ generators~ ----------------------------
dirac~		dirac-pulse
step~		unity step
noish~		downsampled noise (hold)
noisi~		downsampled noise (interpolate)

------------------------ processing~ ----------------------------
limiter~	a limiter/compressor module
quantize~	quantizes signals
swap~		bytes swap a 16bit-signal
z~		samplewise delay

------------------------- analytic~ -----------------------------
sigzero~	detects whether a signal is zero throughout the vector or not
pdf~		probability density function 
envrms~		like env~, but outputting rms instead of dB
avg~		arithmetic mean of 1 signal-vector
tavg~		arithmetic mean between two bangs
dfreq~		frequency detector

------------------------- sigbinops~ ----------------------------
>~, <~, ==~, &&~, ||~	logical operators
abs~		absolute value of a signal
sgn~		signum of a signal

--------------------------- misc~ -------------------------------
nop~		no-operation
pack~		convert a signal to a list of floats
unpack~		convert a list of floats to a signal
matrix~		matrix-multiply m IN-signals to n OUT-signals
multiplex~	multiplex 1-of-n inlets to 1 outlet
demultiplex~	demultiplex 1 inlet to 1-of-n outlets


========================= control ==============================

-------------------------- basic -------------------------------
nop		no-operation
lister		store lists (like "float" for floats)
repack		(re)pack atoms to packages of a given size
packel		get a specified element of a list
length		get the length of a list
niagara		split 1 packages into 2
glue		append a package to another (glue them together)
segregate	segregate the input to various outlets, depending on the type
any2list	convert "anythings" to "lists"
list2int	cast each float of a list to integer
atoi		ascii to integer
strcmp		compare lists as strings
list2symbol	convert a list into a single symbol
.		scalar multiplication of vectors (=lists of floats)

------------------------ advanced ------------------------------
tabread4	interpolating tabread (obsolete since pd>=0.30)
tabdump		dump out a table as a list of floats
tabset		set a table with a list of floats
makesymbol	concatenate lists to formatted symbols
date		get system date
time		get system time
index		map symbols to indices
msgfile		a powerful "textfile" derivative
mavg		moving average filter for floats
mean		get the mean value of a list of floats
minmax		get minimum and maximum of a list of floats
sort		shell-sort a list of floats
demultiplex	demultiplex the input to a specified outlet
drip		extract the atoms of a package (opt. scheduled)
lp		write to the (parallel) port (linux only)

-------------------------- matrix -------------------------------
matrix		create/store/... matrices
mtx_element	set elements of a matrix
mtx_row		set rows of a matrix
mtx_col		set columns of a matrix
mtx_ones	matrix with all elements==1
mtx_zeros	matrix with all elements==0
mtx_eye		identity matrix
mtx_egg		identity matrix (from upper-right to lower-left)
mtx_diag	diagonal matrix
mtx_diegg	diagonal matrix (from upper-right to lower-left)
mtx_diag	get the diagonal of a matrix
mtx_trace	get the trace of a matrix
mtx_transpose	transpose a matrix
mtx_roll	column-shift a matrix
mtx_scroll	row-shift a matrix
mtx_pivot	pivot-transform a matrix
mtx_resize	resize a matrix (evtl. with zero-padding)
mtx_size	get the size of a matrix
mtx_inverse	get the inverse of a matrix
mtx_add, mtx_+	add 2 matrices (or an offset to 1 matrix)
mtx_mul, mtx_*	multiply 2 matrices (or a factor with 1 matrix)
mtx_.*		multiply 2 matrices element by element
mtx_./		divide 2 matrices element by element
mtx_mean	get the mean value of each column
mtx_rand	matrix with random elements
mtx_check	check the consistency of a matrix and repair
mtx_print	print a matrix to the stderr