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UADE(1)								       UADE(1)

NAME
       UADE - Unix Amiga Delitracker Emulator

SYNOPSIS
       uade123 [options] files ...

DESCRIPTION
       uade123	plays  old amiga music formats by emulating Amiga hardware. It
       re-uses Amiga Eagleplayer plugins to  play  different  formats.	Eagle-
       player  plugins	require	 an  implementation of the Eagleplayer API and
       AmigaOS APIs to run on. Therefore Eagleplayer API and parts of  AmigaOS
       have been implemented in	uade.

       uade123	is a command line player that can be used to play Amiga	songs.
       It's options and	behavior are documented	here. There is also  a	plugin
       for the audacious.

       Section	FILE FORMAT DETECTION  explains	hardships of recognizing amiga
       formats and consequently	problems it may	cause for the  user  (and  au-
       thors).

       Section	 COMMAND LINE OPTIONS	documents  command  line  options  for
       uade123.

       Section ACTION KEYS documents action keys which are used	to issue  run-
       time  commands  to  control  playback. These commands include switching
       subsong,	skipping to next song, skipping	fast forward, pausing and  al-
       tering post-processing effects.

       Section CONFIGURATION FILES documents variables which can be changed in
       eagleplayer.conf,  song.conf and	uade.conf to alter default behavior of
       uade123 and other frontends.  eagleplayer.conf is used for  eagleplayer
       plugin  specific	 configurations.   song.conf is	used for song specific
       configurations which can	be used	to change sound	effects	or avoid prob-
       lems.  uade.conf	is the main configuration file that can	be used	to set
       defaults	for variables.	Command	 line  options	will  always  override
       uade.conf options.

FILE FORMAT DETECTION
       Creating	 file  detection  heuristics  for 200 formats is difficult and
       most of those formats are undocumented or otherwise not	easily	recog-
       nizable.	Therefore we have to detect some formats by file name prefixes
       and  postfixes  which can easily	cause problems.	For example, many dif-
       ferent protracker variants are named with 'mod' prefix and  the	format
       lacks version number inside the data file making	it rather hard to rec-
       ognize  proper mod variant.  Sound output can be	buggy with some	unrec-
       ognizable mod variants. When file format	can not	be  deduced  based  on
       file  contents,	a heuristics based on the file name must be used. This
       may sound strange, but many of the m68k machine language	player plugins
       are black boxes which have no reliable mechanism	to validate whether  a
       given  file  belongs to them or not.  The filename based	heuristics may
       cause unrecognized songs	in uade123.   In  audacious  plugin  they  can
       cause conflicts with other plugins.

COMMAND	LINE OPTIONS
       -1, --one Play at most one subsong per file.

       -@ filename, --list=filename
	      Play song	files listed in	the file.

       --ao-option=x:y
	      Set  option for libao, where 'x' is an audio driver specific op-
	      tion and 'y' is a	value. Note 'x'	may not	contain	':' character,
	      but 'y' may. This	option can be used multiple times  to  specify
	      multiple options.

	      Example for alsa09 plugin: --ao-option=dev:default

       --buffer-time=x
	      Set  audio  buffer  length  to x milliseconds. It	can be used to
	      avoid audio underruns on some systems. The default value of this
	      setting is provided by the libao.	Notice that libao support  for
	      ALSA  has	 a  bug	in versions 0.8.6 and earlier that buffer_time
	      must actually be given in	microseconds rather than milliseconds.

       -d, --debug
	      Turn debug mode on. Experts only.

       --detect-format-by-content
	      Set file magic mode. The songs are only detected	by  file  con-
	      tents.   File name based heuristics (prefixes and	postfixes) are
	      not used.

       --disable-timeouts
	      Disable timeouts.	The frontend will never	timeout	a song.

       --enable-timeouts
	      Enable timeouts. The frontend will normally timeout a song.

       -e format
	      Set output file format (au, raw, wav). Use with -f.

       -f filename
	      Output sound data	to filename.

       --filter
	      Enable filter emulation. It is enabled by	default	but  could  be
	      disabled from uade.conf.

       --filter=x
	      Set  filter emulation mode to x.	x is a500, a1200 or none. A500
	      is the default. 'none' means disabling the filter.  Please  note
	      that  A500 and A1200 are audibly different on every song even if
	      a	song doesn't use filtering.  Surprisingly, the biggest differ-
	      ence between A500	and A1200 is filter behavior when LED  is  off
	      (i.e.   song doesn't use filtering). When	LED is off, A1200 does
	      very little filtering but	A500 does some filtering that  can  be
	      easily heard. Please try switching between A500 and A1200	modes.
	      You should get same results with real Amigas too :-)

       --force-led=x
	      Force Amiga filter on or off. 0 means "OFF" and 1	means "ON".

       --frequency=x
	      Set output frequency to x	Hz. The	default	is 44,1	kHz. Note that
	      this  option  applies to all frontends (including	Audacious plu-
	      gin).

       -G, --gain=x
	      Set volume gain to x.  x must be a non-negative value.  The  de-
	      fault value is 1,0.

       -g, --get-info
	      Print  playername	 and  subsong  information  to stdout and then
	      exit. This is useful for recording script.

       --headphones
	      Enable headphones	postprocessing effect.

       --headphones2
	      Enable headphones	2 postprocessing effect.

       -h, --help
	      Print command line help.

       -i,  --ignore
	      Force eagleplayer	to play	the song.

       -j x, --jump=x
	      Jump to song position of x seconds.

       -k x, --keys=x
	      Turn action keys on (x = 1) or off (x = 0).

       -n, --no-ep-end-detect
	      Play music ad infinitum by ignoring song end reported by the ea-
	      gleplayer.  Note that this does not affect timeouts.

       --ntsc Set NTSC mode. This can be buggy.

       --pal  Set PAL mode. This is the	default.

       -p x, --panning=x
	      Set panning effect to x. This means mixing left and right	 chan-
	      nel  affinely  together. n is a value between 0 and 2. 0 is full
	      stereo, 1	is mono	and 2 is inverse stereo.

       -P playerfile
	      Set filename of the eagleplayer.

       -r, --recursive
	      Play directories recursively.

       --repeat
	      Play playlist over and over again.

       --resampler=s
	      Set resampling method to s.  It can be default,  sinc  or	 none.
	      See RESAMPLERS section for more information.

       -s n, --subsong=n
	      Choose subsong n.

       -S scorefile
	      Set  filename  of	sound core. Experts only. Useful for debugging
	      sound core related problems. Picking score file from earlier re-
	      leases may help revealing	the problem source.

       --scope
	      Turn on audio register debug mode. Prints	Paula hardware	regis-
	      ter hits on the command line.  Support for this option has to be
	      enabled from the configure script	(--with-text-scope).

       --set="option1 option2 ..."
	      Set  song.conf  options  for  given songs. uade123 will not play
	      anything if --set	is used. --set	makes  uade123	remember  song
	      specific	options	 for future playback. For example, this	option
	      is useful	for working around bugs	in ripped songs	(and even uade
	      ;-).  Example: Set volume	gain to	2 for mod.foo:

	      uade123 --set="gain=2" mod.foo.

	      Another example: Force mod.uptim8	to be played as	a  Startrekker
	      4	song:

	      uade123 --set="player=PTK-Prowiz epopt=type:flt4"	mod.uptim8

	      mod.level6h  in the "Disposable Hero" requires vblank timing for
	      the protracker replayer:

	      uade123 --set='epopt=vblank' mod.level6h

       --speed-hack
	      Enable speedhack.	Emulate	all instructions to be executed	in one
	      m68k cycle. Some players,	such as	EMS v6,	take too many m68k cy-
	      cles to be real-time. This option	gives them enough m68k cycles.
	      Notice that you do _not_ need to use this	switch with EMS	v6  or
	      Octamed,	because	it is automatically enabled for	those formats.
	      A	replayer usually knows to ask for speedhack.

       --stderr
	      Print all	messages on stderr. This is  useful  if	 one  uses  -f
	      /dev/stdout as a trick to	pipe sample data on the	command	line.

       -t x, --timeout=x
	      Set song time out	to x seconds. Default is infinite (-1).

       -w x, --subsong-timeout=x
	      Set  subsong timeout to x	seconds. -1 means infinite. Default is
	      512 seconds.

       -v, --verbose
	      Turn verbose mode	on. This is useful for debugging strange situ-
	      ations.

       -x, --ep-option=y
	      Use eagleplayer option y.	For example, to	force a	module	to  be
	      played   as  a  Protracker  1.1b	module,	 execute:  uade123  -x
	      type:pt11b mod.foobar

       -y x, --silence-timeout=x.
	      Set silence timeout to x seconds.	If x seconds of	silence	is de-
	      tected the (sub)song ends.

       -z, --shuffle
	      Randomize	playlist order before playing.

       --write-audio filename
	      Write a paula events and register	writes to  a  given  filename.
	      This  can	 be  used  to generate an oscilloscope view video. See
	      write_audio/README.md for	more info.

ACTION KEYS
       uade123 can be controlled interactively on the command line by pressing
       specific	action keys.
	[0-9]	      Change subsong.
	'<'	      Previous song.
	'.'	      Skip 10 seconds forward.
	SPACE, 'b'    Next subsong.
	'c'	      Pause.
	'f'	      Toggle filter (takes filter  control  away  from	eagle-
       player).
	'g'	      Toggle gain effect.
	'h'	      Print keyboard commands (this list)
	'H'	      Toggle headphones	effect.
	RETURN,	'n'   Next song.
	'p'	      Toggle postprocessing effects.
	'P'	      Toggle panning effect. Default value is 0,7.
	'q'	      Quit.
	's'	      Toggle between shuffle mode and normal play.
	'v'	      Toggle verbose mode.
	'x'	      Restart current subsong.
	'z'	      Previous subsong.

CONFIGURATION FILES
       All  configuration  files  are  in a line based format. This means that
       line breaks (\n)	must be	used properly. Lines beginning with # are com-
       ment lines. Empty lines are ignored.

eagleplayer.conf
       Each line in eagleplayer.conf sets eagleplayer specific options.	It  is
       used,  among other things, to specify file name extensions to different
       formats.	It has the format:

       playername prefixes=prefix1,prefix2,... [opt1 opt2 ...] [comment]

       playername refers to an existing	 eagleplayer  in  players/  directory.
       prefixes	 is  a list of file prefixes and postfixes that	are associated
       with this eagleplayer.  opt1, opt2 and so forth are options that	can be
       given to	the player.

       Valid options for eagleplayer.conf are listed in	the song.conf section.

       Some example lines for eagleplayer.conf:

       custom	       prefixes=cust
       fred	       prefixes=fred	       broken_song_end
       PTK-Prowiz      prefixes=mod,pha,pp10   always_ends
       EMSv6	       prefixes=emsv6	       speed_hack
       foobar	       comment:	this format is not detected by a filename
		       prefix but file content as it should be

song.conf
       song.conf is a configuration file for applying work-arounds  for	 songs
       that  have problems with	eagleplayers. Protracker is especially notori-
       ous for having many incompatible	versions, and modules do not have ver-
       sion information	about the editor which was used	to create  them.   One
       can  program  song.conf	rules  for  songs by using the --set option in
       uade123.	For example, forcing a module into vblank timing, do: "uade123
       --set='epopt=vblank' mod.level6h"

       The file	shall have lines of following format:

       md5=XXX option1 [option2	...] [comment: YYY]

       Valid options for eagleplayer.conf and song.conf:

       a500		    Use	A500 filter emulation
       a1200		    Use	A1200 filter emulation
       always_ends	    A song will	always end. This means that song end
			    detection code is perfect so timeouts in uade.conf
			    can	be ignored. However, timeouts given from
			    command line will override this setting.
       broken_song_end	    Song end reported by the eagleplayer is ignored
       detect_format_by_content	 A song	can only be detected by	contents,
			    never by filename prefix or	postfix
       epopt=x		    Append option x for	eagleplayer. Valid options
			    are	listed in section "EAGLEPLAYER OPTIONS".
       gain=x		    Set	gain value to x
       ignore_player_check  Eagleplayer	tries to play the song even if it is
			    not	recognized as being in proper format. One
			    can	use this option	with bad eagleplayers in
			    eagleplayer.conf and bad rips in song.conf.
       led_off		    Force LED off
       led_on		    Force LED on
       no_ep_end_detect	    Song end reported by the eagleplayer is ignored
       no_filter	    No filtering (avoid	this option, using a1200 is
			    better)
       no_headphones,	    No headphone effect
       no_panning	    No panning
       no_postprocessing    No postprocessing effects
       ntsc		    Uses NTSC timing (can be buggy)
       one_subsong	    Play only one subsong per file
       pal		    Uses PAL timing
       panning=x	    Set	panning	value to x
       player=name	    Set	eagleplayer, where name	is the directory entry
			    in players/	dir. This option is not	allowed	in
			    eagleplayer.conf.
       reject		    Reject a song (usable for blacklisting). This
			    option is not allowed in eagleplayer.conf.
       resampler=x	    Set	resampling method
       silence_timeout=x    Set	silence	timeout
       speed_hack	    Enable speed hack
       subsongs=x,y,...	    Set	playable subsong (not implemented yet)
       subsong_timeout=x    Set	subsong	timeout
       timeout=x	    Set	timeout

       comment is a tag	after which everything is considered  just  a  comment
       about the line.

       Those  options  should  be  self-explanatory ;) A few example lines for
       song.conf:

       md5=09ad7aed28ec0043e232060546259767 broken_subsongs comment  cust.Bub-
       ble_Bobble reports wrong	subsong	numbers

       md5=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx  speed_hack	 comment  this	is the
       only song in format foo that needs speedhack

       md5=yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy led_off  comment  this  song  just
       sucks with filtering

       md5=zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz  led_on  comment  turning  LED  ON
       makes this song sound c00l

       md5=wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww  no_panning	 subsongs=2,5  comment
       only subsongs 2 and 5 sound good

       md5=c351076a79033336a0ea1747b6d78783  ntsc comment Play Platoon song in
       NTSC mode

uade.conf
       uade.conf sets default variables	for configuration settings. Each  line
       may  contain  at	 most one command. The configuration file is read from
       users home directory ( $HOME/.uade/uade.conf ) if it exists. If it does
       not exist, it is	tried from $PREFIX/share/uade/uade.conf
	. Making a copy	of the uade.conf into $HOME/.uade/ can be  useful  for
       users. The same uade.conf controls settings for all frontends. Specifi-
       cally, this includes the	audacious plugin too.

       The valid commands are:

	   ao_option x:y      Set libao	driver option with key=x and value=y.
			      See --ao-option=x:y for more information.
			      Example: ao_option dev:default
	   buffer_time x      Set audio	buffer length to x milliseconds.
	   cygwin	      Set Cygwin path name workaround mode.
			      See help for --cygwin option.
	   detect_format_by_content  Only detect files by content. Do not
			      use file name based heuristics.
	   disable_timeout    A	song will never	timeout.
	   enable_timeout     A	will timeout normally.
	   filter x	      Set filter emulation mode	to be A500, A1200
			      or none.
	   force_led x	      Force LED	"on" or	"off"
	   force_led_off      Same as "force_led off"
	   force_led_on	      Same as "force_led on"
	   frequency x	      Set output frequency to x	Hz. The	default	is
			      44,1 kHz.
	   gain	x	      Set gain value to	x which	is a non-negative
			      value. The default value is 1,0.
	   headphones	      Enable headphone effect.
	   headphones2	      Enable headphone effect 2.
	   ignore_player_check	  Force	eagleplayers to	recognize any given
				  song.
	   no_content_db      Disable song end database.
	   no_ep_end_detect   Disable eagleplayers ability to end song.
			      See --no-ep-end-detect.
	   no_filter	      Same as "filter none".
	   ntsc		      Set NTSC mode. (might not	work properly)
	   one_subsong	      Play only	one subsong per	file.
	   pal		      Set PAL mode.
	   panning x	      Set panning value	to x inside range [0, 2].
			      The default is 0.
	   random_play	      Set random play or shuffle mode. Used for
			      uade123 only.
	   recursive_mode     Scan directories recursively. Used for uade123
			      only.
	   resampler x	      Set resampling method to x. It is	either
			      default, sinc or none.
	   silence_timeout x  Set silence timeout value	to x seconds.
	   speed_hack	      Enable speed hack	mode.
	   subsong_timeout x  Set subsong timeout value	to x seconds. -1
			      implies no timeout.
	   timeout x	      Set timeout value	to x seconds. -1 implies
			      no timeout.
	   verbose	      Enable verbose mode

EAGLEPLAYER OPTIONS
       Eagleplayers can	be given song specific or general options in song.conf
       and  eagleplayer.conf.  Use  epopt=x  to	set one	option.	It can be used
       many times. You can also	issue eagleplayer  options  from  the  command
       line  (so  that they are	not stored into	song.conf) by using -x option:
       "uade123	-x type:nt10 mod.foobar" will  play  mod.foobar	 as  a	Noise-
       tracker 1.0 module. With	-x option "epopt=" prefix must be dropped.

       Valid options for eagleplayers:

       PTK-Prowiz	   epopt=vblank
			   epopt=type:<tracker>
				      <tracker>	can be one of the following:
					 st20  (Soundtracker 2.0 - 2.3)
					 st24  (Soundtracker 2.4)
					 nt10  (Noisetracker 1.x)
					 nt20  (Noisetracker 2.x)
					 m&k.  (Noisetracker M&K.)
					 flt4  (Startrekker 4ch)
					 pt10c (Protracker 1.0c)
					 pt11b (Protracker 1.1b	- 2.1a)
					 pt23a (Protracker 2.3)
					 pt30b (Protracker 3.0b)

			   example: uade123 -x type:nt20 mod.foobar

       Infogrames	   epopt=timer=x
			       This option is used to set playback speed.
			       Higher value means slower playback. This	is the
			       CIA timer register value.
			       x is a hexadecimal value. The default is	1a00.

			       example:	uade123	-x timer=24ff gobliins31.dum

SUPPORTED FORMATS
       Quite  a	 few.  See documentation, eagleplayer.conf and players/	direc-
       tory.

RESAMPLERS
       Internally Amigas Paula chip operates at	3,5 MHz, and in	theory,	it  is
       possible	 to  generate  a  1,75 MHz output signal. However, maximum DMA
       based sample rate, which	is approximately 28876 Hz, is limited by  chip
       memory access slots. These frequencies are not well supported with cur-
       rent  computer  equipment, and synthesizing samples at 3,5 MHz would be
       very slow.  Regardless, in principle UADE "samples" Paula's  output  at
       3,5  MHz	and then immediately resamples it to playback frequency, which
       is usually 44,1 kHz or 1/80th of	the sample rate	of Paula. This	output
       frequency is configurable, see uade.conf	section.

       UADE  currently	supports  three	resampling methods: none that directly
       discards	79 of the 80 samples; default that estimates the  true	output
       value  by  averaging the	last 80	samples	together (also known as	boxcar
       filter).	This is	the recommended	resampler; and sinc  that  trades  cpu
       for  best  high-frequency  component removal through low-pass filtering
       the audio with a	sinc function.

       The default resampler is	a very good choice because it is pretty	 accu-
       rate and	very fast, but loses some treble and causes some aliasing dis-
       tortion.	 For high frequencies (above 44,1 kHz),	sinc becomes an	option
       and is probably the best	choice.

FILTERS
       The  Amiga  output  circuitry  contains a fixed low-pass	filter on most
       models, and a dynamic lowpass filter connected to the power LED	(known
       as  the	"LED  filter"),	which can be toggled on	and off.  On the Amiga
       1000, which was the first Amiga computer, the  LED  filter  was	perma-
       nently  enabled.	 In  the succeeding models, such as the	Amiga 500, the
       LED filter was made optional, but another, permanent RC filter  circuit
       was added on the	audio output. Finally, for Amiga 1200, the static fil-
       ter was removed altogether, and only the	LED filter remains.

       These  low-pass filters were most likely	added in order to make Amiga's
       pulse-based audio sound softer, and to make lower sampling  frequencies
       useful  for  audio  playback:  by removing some of the treble, the hard
       edges of	a pulse	waveform become	rounder	 and  the  waveform  undulates
       more  smoothly,	mimicking  many	 instrument  sounds more accurately at
       lower sampling rates. The downside  of  fixed  filtering	 is  that  the
       smoothing occurs	with all the higher sampling rates, too.

       However,	with the introduction of Amiga 1200 and	its AGA	graphics modes
       and  spacious  chip  memory, it became possible to read more than 28876
       samples per second from chip memory, and	we guess that the  fixed  low-
       pass  filter  was  removed  entirely  in	favour for accurate treble re-
       sponse.

       The filter emulation is based on	hi-fi measurements made	on two partic-
       ular Amiga computers, Amiga 500 and Amiga 1200. The  Amiga  500	output
       path  was  found	 to  contain a 6 dB/oct	lowpass	RC filter circuit with
       cutoff at 5000 Hz.  (Some early Amiga 500 revisions may have  had  4500
       Hz tuning for this filter.)  The	LED filter was found to	be a 12	dB/oct
       Butterworth  lowpass filter with	cutoff value at	approximately 3300 Hz.
       The details of the Amiga	1000 filter arrangements are  not  known,  be-
       cause nobody has	been able to provide any samples.

       Accurate	 digital  simulation of	analog filters is usually not possible
       without some upsampling.	When "default" method is used, the samples are
       generated at the	playback frequency, and	the post-processing step  that
       applies	filtering is composed with a series of hand-fitted first-order
       IIR filters that	together approximate the  correct  frequency  response
       for the expected	synthesis frequencies of 44,1 kHz or 48	kHz.

       The  sinc  resampling method, in	turn, emulates the filters directly at
       Paula's 3,5 MHz sampling	frequency by folding the filters directly into
       the shape of the	fundamental synthesis unit,  the  BLEP.	 In  the  sinc
       mode,  the  filters  are	 realised  by  fitting	the digital models for
       (slightly modified) butterworth and RC filters with the parameters men-
       tioned above. Therefore sinc can	be used	on all frequencies above  44.1
       kHz without quality loss	(or increase, for that matter).

UAERC
       You  can	 edit PREFIX/share/uaerc to edit Amiga emulation related vari-
       able.

       INCREASING AMIGA	MEMORY FOR LARGE MODULE	FILES

       uaerc can be edited to increase Amiga memory. The variable named	 chip-
       mem_size	 (4  by	default) controls the memory allocation. The allocated
       memory size is determined by formula chipmem_size * 512 KiB, and	 thus,
       there  is  2 MiB	of memory available for	modules	by default. This vari-
       able can	be set up to 16, which would mean 8 MiB	of memory for modules.

FILES
       PREFIX/bin/uade123
	      Player executable.

       PREFIX/share/uade/eagleplayer.conf or $(HOME)/.uade/eagleplayer.conf

       PREFIX/share/uade/score
	      MC68000 sound core file

       PREFIX/share/uade/players
	      MC68000 eagleplayer binaries

       PREFIX/share/uade/song.conf or $(HOME)/.uade/song.conf

       PREFIX/share/uade/uade.conf or $(HOME)/.uade/uade.conf
	      Main configuration file

       PREFIX/share/uade/uaerc
	      Configuration file for UAE

       PREFIX/share/doc/uade-*
	      UADE documentation

       PREFIX/share/man/man1/uade123.1
	      This man page.

EXAMPLES
       uade123 -zr /path
	      Play files under /path recursively in random order.

       uade123 -f output.wav mod.foo

       uade123 --set=epopt=type:pt10 mod.foo
	      Set protracker compatibility to  Protracker  1.0c	 for  mod.foo.
	      After  this uade will remember epopt=type:pt10 for mod.foo.  See
	      -x option	also.

TIPS AND WORKAROUNDS
       1.     uade123 users libao to play audio. However,  some	 distributions
	      have   a	 broken	  or  badly  configured	 libao.	 This  can  be
	      workarounded with	a simple shell script that uses	 ALSA's	 aplay
	      for  playback.  It  works	 for  ordinary cases.  You can call it
	      hackuade and issue "hackuade -zr	/music/chip"  on  the  command
	      line. Put	hackuade script	somewhere in your command $PATH:

	      #!/bin/sh

	      uade123 -c "$@" |aplay

INFORMATION SOURCES
       Project home:
	      https://zakalwe.fi/uade

       IRC channel:
	      #amigaexotic at IRCNet

       Project manager:
	      Heikki Orsila <heikki.orsila@iki.fi>

VERSION	CONTROL	SERVER
       git clone https://gitlab.com/uade-music-player/uade

AUTHORS
       UADE  project  was  started  by	Heikki	Orsila <heikki.orsila@iki.fi>.
       There have been many other contributors.	Most notable contributors  are
       Michael	'mld'  Doering	(for  almost  anything), Harry 'Piru' Sintonen
       (MorphOS	port) and Antti	S. Lankila <alankila@bel.fi> (Amiga filter em-
       ulation,	resampling and postprocessing effect code).

Heikki Orsila and Michael Doering 2007-02-16			       UADE(1)

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<https://man.freebsd.org/cgi/man.cgi?query=uade123&sektion=1&manpath=FreeBSD+Ports+14.3.quarterly>

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