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audio/stretchplayer: Added (audio player with pitch/speed control).

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Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>
This commit is contained in:
B. Watson 2022-01-18 14:13:04 -05:00 committed by Willy Sudiarto Raharjo
parent 6a6e4ee158
commit 6a87a41a89
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GPG key ID: 3F617144D7238786
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20
audio/stretchplayer/README Normal file
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@ -0,0 +1,20 @@
stretchplayer (audio player with time stretch and pitch shift)
StretchPlayer is an audio file player that allows you to change the
speed of the song without changing the pitch. It will also allow
you to transpose the song to another key (while also changing the
speed). This is a very powerful tool for musicians who are learning
to play a pre-recorded song. Its features include Time Stretch (25% to
125% of song speed, without changing pitch), Pitch Shift (up or down 1
octave), A/B repeat, and lots of keyboard accelerators.
The player supports all the audio formats that libsndfile supports,
which currently includes OGG/Vorbis, WAV, W64, AIFF, SND, and
FLAC. Note that neither libsndfile nor StretchPlayer supports MP3
files for patent liability reasons.
This package uses POSIX filesystem capabilities to execute with
elevated privileges (required for realtime audio processing). This
may be considered a security/stability risk. Please read
http://www.slackbuilds.org/caps/ for more information. To disable
capabilities, pass SETCAP=no to the script.

9
audio/stretchplayer/doinst.sh Normal file
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if [ -x /usr/bin/update-desktop-database ]; then
/usr/bin/update-desktop-database -q usr/share/applications >/dev/null 2>&1
fi
if [ -e usr/share/icons/hicolor/icon-theme.cache ]; then
if [ -x /usr/bin/gtk-update-icon-cache ]; then
/usr/bin/gtk-update-icon-cache usr/share/icons/hicolor >/dev/null 2>&1
fi
fi

156
audio/stretchplayer/fine_tuning.diff Normal file
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diff -Naur stretchplayer-0.503/src/Engine.cpp stretchplayer-0.503.patched/src/Engine.cpp
--- stretchplayer-0.503/src/Engine.cpp 2010-07-18 00:44:20.000000000 -0400
+++ stretchplayer-0.503.patched/src/Engine.cpp 2014-02-28 17:43:36.000000000 -0500
@@ -46,6 +46,7 @@
_sample_rate(48000.0),
_stretch(1.0),
_pitch(0),
+ _fine(0),
_gain(1.0)
{
QString err;
@@ -153,7 +154,7 @@
uint32_t srate = _audio_system->sample_rate();
_stretcher->setTimeRatio( srate / _sample_rate / _stretch );
- _stretcher->setPitchScale( ::pow(2.0, double(_pitch)/12.0) * _sample_rate / srate );
+ _stretcher->setPitchScale( ::pow(2.0, double(_pitch)/12.0 + double(_fine)/1200.0) * _sample_rate / srate );
uint32_t frame;
uint32_t reqd, gend, zeros, feed;
diff -Naur stretchplayer-0.503/src/Engine.hpp stretchplayer-0.503.patched/src/Engine.hpp
--- stretchplayer-0.503/src/Engine.hpp 2010-07-18 00:44:20.000000000 -0400
+++ stretchplayer-0.503.patched/src/Engine.hpp 2014-03-01 11:26:57.000000000 -0500
@@ -81,6 +81,21 @@
//_state_changed = true;
}
+ int get_fine() {
+ return _fine;
+ }
+ void set_fine(int fin) {
+ if(fin < -99) {
+ _fine = fin % 100;
+ set_pitch(get_pitch() - 1);
+ } else if (fin > 99) {
+ _fine = fin % 100;
+ set_pitch(get_pitch() + 1);
+ } else {
+ _fine = fin;
+ }
+ }
+
/**
* Clipped to [0.0, 10.0]
*/
@@ -146,6 +161,7 @@
float _sample_rate;
float _stretch;
int _pitch;
+ int _fine;
float _gain;
std::auto_ptr<RubberBand::RubberBandStretcher> _stretcher;
std::auto_ptr<AudioSystem> _audio_system;
diff -Naur stretchplayer-0.503/src/PlayerWidget.cpp stretchplayer-0.503.patched/src/PlayerWidget.cpp
--- stretchplayer-0.503/src/PlayerWidget.cpp 2010-07-18 00:44:20.000000000 -0400
+++ stretchplayer-0.503.patched/src/PlayerWidget.cpp 2014-03-01 10:04:02.000000000 -0500
@@ -35,6 +35,7 @@
#include <QBitmap>
#include <QAction>
#include <QResizeEvent>
+#include <QApplication>
#include <QCoreApplication>
#include <cmath>
@@ -152,11 +153,21 @@
void PlayerWidget::pitch_inc()
{
+ if(QApplication::keyboardModifiers() == Qt::ShiftModifier)
+ _engine->set_fine( _engine->get_fine() + 10);
+ else if(QApplication::keyboardModifiers() == Qt::ControlModifier)
+ _engine->set_fine( _engine->get_fine() + 1);
+ else
_engine->set_pitch( _engine->get_pitch() + 1 );
}
void PlayerWidget::pitch_dec()
{
+ if(QApplication::keyboardModifiers() == Qt::ShiftModifier)
+ _engine->set_fine( _engine->get_fine() - 10);
+ else if(QApplication::keyboardModifiers() == Qt::ControlModifier)
+ _engine->set_fine( _engine->get_fine() - 1);
+ else
_engine->set_pitch( _engine->get_pitch() - 1);
}
@@ -262,8 +273,9 @@
float sch = _engine->get_stretch();
_status->speed(sch);
+ int fin = _engine->get_fine();
int pit = _engine->get_pitch();
- _status->pitch(pit);
+ _status->pitch(pit, fin);
float cpu = _engine->get_cpu_load();
_status->cpu(cpu);
@@ -471,8 +483,9 @@
QList<QKeySequence> inc_shortcuts;
inc_shortcuts << Qt::Key_Plus;
inc_shortcuts << Qt::Key_Equal;
+ inc_shortcuts << QKeySequence("Ctrl+=");
_act.pitch_inc = new QAction("+", this);
- _act.pitch_inc->setToolTip("Pitch Increase [+]");
+ _act.pitch_inc->setToolTip("Pitch Increase [+ or =] (Ctl/Shift=Fine)");
_act.pitch_inc->setShortcuts(inc_shortcuts);
_act.pitch_inc->setShortcutContext(Qt::ApplicationShortcut);
_act.pitch_inc->setIcon( _ico.plus );
@@ -480,9 +493,13 @@
connect(_act.pitch_inc, SIGNAL(triggered()),
this, SLOT(pitch_inc()));
+ QList<QKeySequence> dec_shortcuts;
+ dec_shortcuts << Qt::Key_Minus;
+ dec_shortcuts << Qt::Key_Underscore;
+ dec_shortcuts << QKeySequence("Ctrl+-");
_act.pitch_dec = new QAction("-", this);
- _act.pitch_dec->setToolTip("Pitch Decrease [-]");
- _act.pitch_dec->setShortcut(Qt::Key_Minus);
+ _act.pitch_dec->setToolTip("Pitch Decrease [-] (Ctl/Shift=Fine)");
+ _act.pitch_dec->setShortcuts(dec_shortcuts);
_act.pitch_dec->setShortcutContext(Qt::ApplicationShortcut);
_act.pitch_dec->setIcon( _ico.minus );
addAction(_act.pitch_dec);
diff -Naur stretchplayer-0.503/src/StatusWidget.cpp stretchplayer-0.503.patched/src/StatusWidget.cpp
--- stretchplayer-0.503/src/StatusWidget.cpp 2010-07-18 00:44:20.000000000 -0400
+++ stretchplayer-0.503.patched/src/StatusWidget.cpp 2014-03-01 11:16:47.000000000 -0500
@@ -85,10 +85,13 @@
.arg(val, 3, 'f', 0);
}
- void StatusWidget::pitch(int p)
+ void StatusWidget::pitch(int p, int f)
{
- _pitch = QString("PITCH: %1")
- .arg(int(p));
+ _pitch = QString("PITCH: %1").arg(int(p));
+ if(f > 0)
+ _pitch += QString("+%1").arg(int(f));
+ else if(f < 0)
+ _pitch += QString("%1").arg(int(f));
}
void StatusWidget::volume(float g)
diff -Naur stretchplayer-0.503/src/StatusWidget.hpp stretchplayer-0.503.patched/src/StatusWidget.hpp
--- stretchplayer-0.503/src/StatusWidget.hpp 2010-07-18 00:44:20.000000000 -0400
+++ stretchplayer-0.503.patched/src/StatusWidget.hpp 2014-02-28 19:20:49.000000000 -0500
@@ -54,7 +54,7 @@
void position(float);
void time(float);
void speed(float);
- void pitch(int);
+ void pitch(int, int);
void volume(float);
void cpu(float);
void message(QString);

1
audio/stretchplayer/setcap.sh Normal file
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[ -x /sbin/setcap ] && /sbin/setcap cap_ipc_lock,cap_sys_nice=ep usr/bin/stretchplayer

19
audio/stretchplayer/slack-desc Normal file
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# HOW TO EDIT THIS FILE:
# The "handy ruler" below makes it easier to edit a package description. Line
# up the first '|' above the ':' following the base package name, and the '|'
# on the right side marks the last column you can put a character in. You must
# make exactly 11 lines for the formatting to be correct. It's also
# customary to leave one space after the ':'.
|-----handy-ruler------------------------------------------------------|
stretchplayer: stretchplayer (audio player with time stretch and pitch shift)
stretchplayer:
stretchplayer: StretchPlayer is an audio file player that allows you to change the
stretchplayer: speed of the song without changing the pitch. It will also allow
stretchplayer: you to transpose the song to another key (while also changing the
stretchplayer: speed). This is a very powerful tool for musicians who are learning
stretchplayer: to play a pre-recorded song. Its features include Time Stretch (25%
stretchplayer: to 125% of song speed, without changing pitch), Pitch Shift (up or
stretchplayer: down 1 octave), A/B repeat, and lots of keyboard accelerators.
stretchplayer:
stretchplayer:

35
audio/stretchplayer/stretch_25_125.diff Normal file
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@ -0,0 +1,35 @@
diff --git a/src/Engine.hpp b/src/Engine.hpp
index 873ec4d..0d3c988 100644
--- a/src/Engine.hpp
+++ b/src/Engine.hpp
@@ -60,7 +60,7 @@ public:
return _stretch;
}
void set_stretch(float str) {
- if(str > 0.5 && str < 2.0) {
+ if(str > 0.2499 && str < 1.2501) { /* would be 'if(str >= 0.25 && str <= 1.25)', but floating point is tricky... */
_stretch = str;
//_state_changed = true;
}
diff --git a/src/PlayerWidget.cpp b/src/PlayerWidget.cpp
index e906446..489856b 100644
--- a/src/PlayerWidget.cpp
+++ b/src/PlayerWidget.cpp
@@ -234,7 +234,7 @@ namespace StretchPlayer
void PlayerWidget::stretch(int pos)
{
- _engine->set_stretch( 0.5 + double(pos)/1000.0 );
+ _engine->set_stretch( 0.25 + double(pos)/1000.0 );
}
void PlayerWidget::volume(int vol)
@@ -322,7 +322,7 @@ namespace StretchPlayer
_volume->setValue( _to_fader(vol) );
_status->volume( _volume->value() / 1000.0 );
- _stretch->setValue( (sch-0.5) * 1000 );
+ _stretch->setValue( (sch-0.25) * 1000 );
_status->update();
}

131
audio/stretchplayer/stretchplayer.1 Normal file
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.\" Man page generated from reStructuredText.
.
.
.nr rst2man-indent-level 0
.
.de1 rstReportMargin
\\$1 \\n[an-margin]
level \\n[rst2man-indent-level]
level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
-
\\n[rst2man-indent0]
\\n[rst2man-indent1]
\\n[rst2man-indent2]
..
.de1 INDENT
.\" .rstReportMargin pre:
. RS \\$1
. nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin]
. nr rst2man-indent-level +1
.\" .rstReportMargin post:
..
.de UNINDENT
. RE
.\" indent \\n[an-margin]
.\" old: \\n[rst2man-indent\\n[rst2man-indent-level]]
.nr rst2man-indent-level -1
.\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
.in \\n[rst2man-indent\\n[rst2man-indent-level]]u
..
.TH "STRETCHPLAYER" 1 "2022-01-18" "0.503_4" "SlackBuilds.org"
.SH NAME
stretchplayer \- audio player with time stretch and pitch shift
.\" RST source for stretchplayer(1) man page. Convert with:
.
.\" rst2man.py stretchplayer.rst > stretchplayer.1
.
.\" rst2man.py comes from the SBo development/docutils package.
.
.SH SYNOPSIS
.sp
stretchplayer [\fIfile\fP]
.SH DESCRIPTION
.sp
\fBstretchplayer\fP is an audio file player that allows you to change
the speed of the song without changing the pitch. It will also allow
you to transpose the song to another key (while also changing the
speed independently). This is a very powerful tool for musicians who
are learning to play a pre\-recorded song. Its features include:
.INDENT 0.0
.IP \(bu 2
Time Stretch (25% to 125% of song speed, without changing pitch)
.IP \(bu 2
Pitch shift (up or down 1 octave)
.IP \(bu 2
A/B repeat
.IP \(bu 2
Lots of keyboard accelerators
.UNINDENT
.sp
The player supports all the audio formats that libsndfile supports, which
currently includes OGG/Vorbis, WAV, W64, AIFF, SND, and FLAC. Note that
neither libsndfile nor StretchPlayer supports MP3 files for patent liability
reasons.
.sp
\fBstretchplayer\fP takes no arguments other than an optional \fIfile\fP to play.
.SH KEYBOARD
.INDENT 0.0
.TP
.B \fBSpace\fP
Play/Pause.
.TP
.B \fBS\fP
Stop.
.TP
.B \fBEnter\fP
A/B Loop.
.TP
.B \fBLeft\fP, \fBRight\fP arrows
Playback Speed.
.TP
.B \fB+\fP, \fB\-\fP
Transposition/tuning. Increase/decrease pitch by 100 cents (1 semitone). With
\fIShift\fP, adjust pitch by 10 cents. With \fIControl\fP, adjust by 1 cent.
.TP
.B \fBUp\fP, \fBDown\fP arrows
Increase/decrease volume.
.TP
.B \fBO\fP
Open new file.
.TP
.B \fBEscape\fP
Quit.
.TP
.B \fBHome\fP
Reset pitch and speed to defaults, seek to beginning of song.
.UNINDENT
.SH BUGS
.sp
\fBstretchplayer\fP will not work if you have a small JACK buffer size (<= 256 frames).
Bug reports can be sent to \fI\%gabriel@teuton.org\fP\&.
.SH COPYRIGHT
.sp
See the file /usr/doc/stretchplayer\-0.503_4/COPYING for license information.
.SH AUTHORS
.sp
stretchplayer was written by Gabriel M. Beddingfield.
.sp
The fine\-tuning patch (Ctrl/Shift to adjust +/\- 1 or 10 cents) was
written by B. Watson.
.sp
This man page written for the SlackBuilds.org project
by B. Watson, and is licensed under the WTFPL.
.SH SEE ALSO
.sp
\fBmplayer\fP(1), \fBmpv\fP(1), \fBjackd\fP(1), \fBqjackctl\fP(1)
.sp
/usr/doc/stretchplayer\-0.503_4/README.txt
.sp
The stretchplayer homepage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
https://www.teuton.org/~gabriel/stretchplayer/
.ft P
.fi
.UNINDENT
.UNINDENT
.\" Generated by docutils manpage writer.
.

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audio/stretchplayer/stretchplayer.SlackBuild Normal file
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#!/bin/bash
# Slackware build script for stretchplayer
# Written by B. Watson (yalhcru@gmail.com)
# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.
# Upstream git is: https://gitlab.com/stretchplayer/stretchplayer.git
# Latest commits there are post 0.503 release, development
# stopped in 2014. Lots of nice new features there, including mp3
# support. Unfortunately building the latest git code results in a
# stretchplayer that segfaults on startup, and I don't have a fix, so
# I didn't try to package that. I did cherry-pick one commit though.
##### TODO:
# on every exit (close with the close button):
# corrupted double-linked list
# Aborted
cd $(dirname $0) ; CWD=$(pwd)
PRGNAM=stretchplayer
VERSION=${VERSION:-0.503_4}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}
if [ -z "$ARCH" ]; then
case "$( uname -m )" in
i?86) ARCH=i586 ;;
arm*) ARCH=arm ;;
*) ARCH=$( uname -m ) ;;
esac
fi
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
exit 0
fi
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}
if [ "$ARCH" = "i586" ]; then
SLKCFLAGS="-O2 -march=i586 -mtune=i686"
LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
SLKCFLAGS="-O2 -march=i686 -mtune=i686"
LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
SLKCFLAGS="-O2 -fPIC"
LIBDIRSUFFIX="64"
else
SLKCFLAGS="-O2"
LIBDIRSUFFIX=""
fi
set -e
SRCVER="$( echo $VERSION | cut -d_ -f1 )"
DEBVER="$( echo $VERSION | cut -d_ -f2 )"
rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$SRCVER
tar xvf $CWD/${PRGNAM}_$SRCVER.orig.tar.gz
cd $PRGNAM-$SRCVER
tar xvf $CWD/${PRGNAM}_$SRCVER-$DEBVER.debian.tar.xz
chown -R root:root .
find -L . -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
\! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} \+
# Apply Debian's patches, especially qt5.diff!
for i in $( cat debian/patches/series ); do
patch -p1 < debian/patches/$i
done
# Patch by SlackBuild author. Allows tuning up and down by 10 cents
# (1/10 of a semitone) when holding the Shift key, or 1 cent when
# holding Control. Helps with stuff that was recorded slightly out of
# tune, or mastered from ancient tapes. Patch was sent upstream, but
# upstream isn't responding.
patch -p1 < $CWD/fine_tuning.diff
# Patch from upstream git, changes the stretch range from 25%-125%.
# commit a3e0f1f.
patch -p1 < $CWD/stretch_25_125.diff
mkdir -p build
cd build
cmake \
-DENABLE_UNIT_TESTS=OFF \
-DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
-DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
-DCMAKE_INSTALL_PREFIX=/usr \
-DLIB_SUFFIX=${LIBDIRSUFFIX} \
-DMAN_INSTALL_DIR=/usr/man \
-DCMAKE_BUILD_TYPE=Release ..
make
make install/strip DESTDIR=$PKG
cd ..
# man page by SlackBuild author. Based on the Debian one, but
# includes a list of keystrokes.
mkdir -p $PKG/usr/man/man1
gzip -9c < $CWD/$PRGNAM.1 > $PKG/usr/man/man1/$PRGNAM.1.gz
# I don't think stretchplayer needs this at runtime:
rm -rf $PKG/usr/share/$PRGNAM $PKG/usr/share/icons
for i in art/$PRGNAM-icon-*.png; do
size="$( basename $i .png | cut -d- -f3 )"
mkdir -p $PKG/usr/share/icons/hicolor/$size/apps
cp -a $i $PKG/usr/share/icons/hicolor/$size/apps/$PRGNAM.png
done
mkdir -p $PKG/usr/share/icons/hicolor/scalable/apps
cp -a art/$PRGNAM-icon.svg $PKG/usr/share/icons/hicolor/scalable/apps/$PRGNAM.svg
rm $PKG/usr/share/pixmaps/*
ln -s ../icons/hicolor/48x48/apps/$PRGNAM.png $PKG/usr/share/pixmaps/$PRGNAM.png
sed -i "/^Icon/s,=.*,=$PRGNAM," $PKG/usr/share/applications/$PRGNAM.desktop
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a AUTHORS BUGS* COPYING ChangeLog README* $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh
if [ "${SETCAP:-yes}" = "yes" ]; then
cat $CWD/setcap.sh >> $PKG/install/doinst.sh
chown root:audio $PKG/usr/bin/$PRGNAM
chmod 0750 $PKG/usr/bin/$PRGNAM
fi
cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE

12
audio/stretchplayer/stretchplayer.info Normal file
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PRGNAM="stretchplayer"
VERSION="0.503_4"
HOMEPAGE="https://www.teuton.org/~gabriel/stretchplayer/"
DOWNLOAD="https://www.teuton.org/~gabriel/stretchplayer/stretchplayer_0.503.orig.tar.gz \
http://deb.debian.org/debian/pool/main/s/stretchplayer/stretchplayer_0.503-4.debian.tar.xz"
MD5SUM="2c5b412eaf3760b397dee27a3bdfc088 \
b009648334e33b15068fbf7c53475b20"
DOWNLOAD_x86_64=""
MD5SUM_x86_64=""
REQUIRES="rubberband jack"
MAINTAINER="B. Watson"
EMAIL="yalhcru@gmail.com"

112
audio/stretchplayer/stretchplayer.rst Normal file
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.. RST source for stretchplayer(1) man page. Convert with:
.. rst2man.py stretchplayer.rst > stretchplayer.1
.. rst2man.py comes from the SBo development/docutils package.
.. |version| replace:: 0.503_4
.. |date| date::
=============
stretchplayer
=============
----------------------------------------------
audio player with time stretch and pitch shift
----------------------------------------------
:Manual section: 1
:Manual group: SlackBuilds.org
:Date: |date|
:Version: |version|
SYNOPSIS
========
stretchplayer [*file*]
DESCRIPTION
===========
**stretchplayer** is an audio file player that allows you to change
the speed of the song without changing the pitch. It will also allow
you to transpose the song to another key (while also changing the
speed independently). This is a very powerful tool for musicians who
are learning to play a pre-recorded song. Its features include:
- Time Stretch (25% to 125% of song speed, without changing pitch)
- Pitch shift (up or down 1 octave)
- A/B repeat
- Lots of keyboard accelerators
The player supports all the audio formats that libsndfile supports, which
currently includes OGG/Vorbis, WAV, W64, AIFF, SND, and FLAC. Note that
neither libsndfile nor StretchPlayer supports MP3 files for patent liability
reasons.
**stretchplayer** takes no arguments other than an optional *file* to play.
KEYBOARD
========
**Space**
Play/Pause.
**S**
Stop.
**Enter**
A/B Loop.
**Left**, **Right** arrows
Playback Speed.
**+**, **-**
Transposition/tuning. Increase/decrease pitch by 100 cents (1 semitone). With
*Shift*, adjust pitch by 10 cents. With *Control*, adjust by 1 cent.
**Up**, **Down** arrows
Increase/decrease volume.
**O**
Open new file.
**Escape**
Quit.
**Home**
Reset pitch and speed to defaults, seek to beginning of song.
BUGS
====
**stretchplayer** will not work if you have a small JACK buffer size (<= 256 frames).
Bug reports can be sent to gabriel@teuton.org.
COPYRIGHT
=========
See the file /usr/doc/stretchplayer-|version|/COPYING for license information.
AUTHORS
=======
stretchplayer was written by Gabriel M. Beddingfield.
The fine-tuning patch (Ctrl/Shift to adjust +/- 1 or 10 cents) was
written by B. Watson.
This man page written for the SlackBuilds.org project
by B. Watson, and is licensed under the WTFPL.
SEE ALSO
========
**mplayer**\(1), **mpv**\(1), **jackd**\(1), **qjackctl**\(1)
/usr/doc/stretchplayer-|version|/README.txt
The stretchplayer homepage::
https://www.teuton.org/~gabriel/stretchplayer/