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.\" Hey, EMACS: -*- nroff -*-
.\" First parameter, NAME, should be all caps
.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
.\" other parameters are allowed: see man(7), man(1)
.TH TAPIIR 1 "February 14, 2002"
.\" Please adjust this date whenever revising the manpage.
.\"
.\" Some roff macros, for reference:
.\" .nh disable hyphenation
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.\" .ad l left justify
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.\" for manpage-specific macros, see man(7)
.SH NAME
tapiir \- A software multitap delay with realtime I/O
.SH SYNOPSIS
.B tapiir
.RI [ options ]
.br
.SH DESCRIPTION
This manual page documents briefly the
.B tapiir
application.
.PP
.\" TeX users may be more comfortable with the \fB<whatever>\fP and
.\" \fI<whatever>\fP escape sequences to invode bold face and italics,
.\" respectively.
\fBtapiir\fP is a software multitap delay with realtime audio
I/O. It's internal processing modules consist of six delay-lines, each
with a mixer at it's input and a gain control at it's output, and a
stereo output mixer. Stereo input from an external source, typically a
musical instrument, is routed to all input mixers. In addition to
this, the output of each delay line is also routed to the input mixers
of all delay lines, including itself.
For a detailed explanation of the multitap delay technique, and a more
comprehensive description of tapiir capabilities and internals, see
the document referenced in the \fBSEE ALSO\fP section below.
A set of example configuration files are provided in the
\fI/usr/share/doc/tapiir/examples\fP directory, which offer a good overview
of the things you can achieve using tapiir, and also provide a good
starting point to learn to use it.
To run \fBtapiir\fP, you need the ALSA sound system, and the audio
from your musical interpretation fed into your soundcard.
.SH OPTIONS
This program follows the usual GNU command line syntax, with long
options starting with two dashes (`-').
A summary of options is included below.
.TP
.B \-h, \-\-help
Show summary of options.
.TP
.B \-P, \-\-pdevice " playback_device"
Set the ALSA device to use for audio output to
.I playback_device
(default "hw:0,0")
.TP
.B \-C, \-\-cdevice " capture_device"
Set the ALSA device to use for audio input to
.I capture_device
(default "hw:0,0")
.TP
.B \-m, \-\-min " minimun_latency"
Set the desired latency to
.I minimun_latency
samples (default 256)
.TP
.B \-M, \-\-max " maximun_latency"
Set the highest allowed latency to
.I maximun_latency
samples (default 1024)
.TP
.B \-c, \-\-channels " channels"
Number of channels to use (default 2)
.TP
.B \-r, \-\-rate " rate"
Set the sampling rate to
.I rate
Hz (default 48000)
.TP
.B \-b, \-\-block
Use blocking access to the audio device
(not used by default)
.TP
.B \-t, \-\-time " time"
maximal tick time in us
.TP
.B \-p, \-\-poll
Use polling access to the audio device
(used by default)
.SH SEE ALSO
.br
.IR "TAPIIR, A SOFTWARE MULTITAP DELAY, Proceedings of the COST G-6 Conference on Digital Audio Effects (DAFX-01), Limerick, Ireland, December 6-8, 2001"
available on debian systems in /usr/share/doc/tapiir/tapiir.html
.SH AUTHOR
Tapiir was written by Maarten de Boer <mdeboer@iua.upf.es>.
This manual page was written by Enrique Robledo-Arnuncio <erobledo@debian.org>
for the Debian GNU/Linux system (but may be used by others).
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