Spatial/OM-SoX_hoaencode.git

Alexander Nguyen

22.01.25 92c40d00f8ffe4fc6491c0abb70210b31202bd70

commit \| author \| age
92c40d	1	;*********************************************************************
AN	2	; OM-SoX, (c) 2011-2014 Marlon Schumacher (CIRMMT/McGill University) *
	3	; http://sourceforge.net/projects/omsox/ *
	4	; *
	5	; Multichannel Audio Manipulation and Functional Batch Processing. *
	6	; DSP based on SoX - (c) C.Bagwell and Contributors *
	7	; http://sox.sourceforge.net/ *
	8	;*********************************************************************
	9	;
	10	;This program is free software; you can redistribute it and/or
	11	;modify it under the terms of the GNU General Public License
	12	;as published by the Free Software Foundation; either version 2
	13	;of the License, or (at your option) any later version.
	14	;
	15	;See file LICENSE for further informations on licensing terms.
	16	;
	17	;This program is distributed in the hope that it will be useful,
	18	;but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	;MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	20	;GNU General Public License for more details.
	21	;
	22	;You should have received a copy of the GNU General Public License
	23	;along with this program; if not, write to the Free Software
	24	;Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,10 USA.
	25	;
	26	;Authors: M. Schumacher
	27
	28	(in-package :om)
	29
	30
	31	; %%%%%%%%%%%%%%% SOX-PROCESS %%%%%%%%%%%%%%%%%%%%
	32	; Main Processing Function
	33
	34	;== method for pathname + string =======
	35	(defmethod! sox-process ((sox-input pathname) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	36	:icon 08
	37	:initvals '(nil "" "realtime" nil nil nil Off "break")
	38	:menuins (list (list 2 sox-output-options)
	39	(list 3 sox-file-formats)
	40	(list 4 sox-samplerates)
	41	(list 5 sox-bitdephts)
	42	(list 6 '(("On" On) ("Off" Off)))
	43	(list 7 '(("break" break) ("repeat" repeat) ("cycle" cycle))))
	44	:indoc '("Audio input to be processed [sound, path, string/pipe, sox-input]"
	45	"Sox-effect to be applied to audio input [string]" "Output type (new file, replace file, pipe, or realtime) [string]. Also accepts directory, filename, filepath [path]"
	46	"Filetype of produced audio [string]" "Samplerate of produced audio [string]" "Bitdepth of produced audio [number]"
	47	"recursive (when 'on' applies processing recursively to audio) [symbol]" "Mode for batch-processing (break, repeat, cycle) [symbol]")
	48	:doc "Main audio processing function for OM-SoX. Takes audio provided in <sox-input> and processes it with sox-effects provided in <sox-effect>.
	49
	50	<output> determines whether output is to be rendered into
	51	a) new file,
	52	b) replace the input file,
	53	c) create a sox-command as a pipe (for further processing),
	54	d) play back in realtime through audio device.
	55
	56	Alternatively, a filename, directory, or path can be provided which will write an audio file to the given destination.
	57	It is also posisble to connect a function/patch in lambda mode, which (if available) will receive the path of <sox-input> as first argument.
	58	This can be used to algorithmically name output files (e.g. in batch processes).
	59
	60	Optionally, the audio output <filetype> can be specified, as well as the <samplerate> and <bitdepth> (default: same as input).
	61	<recursive> is an experimental option allowing to apply a sox-effect recursively to audio input (e.g. trimming).
	62	<batch-mode> determines the behaviour when processing lists of sox-inputs and sox-effects that differ in length.
	63	"
	64
	65	(if (probe-file sox-path)
	66
	67	(let ((outfile (create-path sox-input output filetype)))
	68
	69	(setf str (format nil "~s ~a ~s" (namestring sox-path) sox-options (namestring sox-input)))
	70
	71	(setf str (cond ((equal output "realtime") (sox-samplebits (string+ str " -q ") bitdepth samplerate sox-audio-device))
	72	((equal output "pipe") (sox-samplebits str bitdepth samplerate '-p))
	73	(t (sox-samplebits str bitdepth samplerate outfile))))
	74
	75	(setf str (string+ str sox-effect))
	76
	77	; optional removal of temp-files
	78	(if delete-inter-file
	79	(let ((outstring (sox-out str sox-input output outfile recursive)))
	80	(if (>= om-version 6.07)
	81	(om-run-process "cleantempfiles" #'sleep&clean 5)
	82	(om-run-process "cleantempfiles" sleep&clean 5))
	83	outstring)
	84	(sox-out str sox-input output outfile recursive)
	85	))
	86	(sox-not-found))
	87	)
	88
	89
	90	;== method for sound + string =======
	91	(defmethod! sox-process ((sox-input sound) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	92	(let ((gainval (sox-vol-convert (vol sox-input)))
	93	(panval (+ (tracknum sox-input) (* 0.01 (pan sox-input)))))
	94	(if (equal (tracknum sox-input) 0)
	95	(sox-process (sound-path sox-input) (string+ sox-effect " gain " (makestring gainval))
	96	:output output :filetype filetype :samplerate samplerate :bitdepth bitdepth
	97	:recursive recursive :batch-mode batch-mode)
	98	(sox-process (make-instance 'sox-pan
	99	:sound sox-input
	100	:gains gainval
	101	:panning panval
	102	:numchannels nil)
	103	sox-effect
	104	:output output :filetype filetype :samplerate samplerate :bitdepth bitdepth
	105	:recursive recursive :batch-mode batch-mode)))
	106	)
	107
	108
	109	;== method for string + string =======
	110	;-> allows for arbitrary 'manual' sox-effect or options or pipe inputs...
	111	(defmethod! sox-process ((sox-input string) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	112	(if (probe-file sox-path)
	113
	114	;catch exception ---------
	115	(if (and (pipe-p sox-input) (equal output "pipe") )
	116	(om-message-abort "Pipe output not possible with this type of input.")
	117	; ------------------------
	118
	119	(let ((outfile (create-path nil output filetype)))
	120
	121	(setf str (format nil "~s ~a ~s" (namestring sox-path) sox-options sox-input))
	122
	123	(setf str (cond ((equal output "realtime") (sox-samplebits (string+ str " -q ") bitdepth samplerate sox-audio-device))
	124	((equal output "pipe") (sox-samplebits str bitdepth samplerate '-p))
	125	(t (sox-samplebits str bitdepth samplerate outfile))))
	126
	127	(setf str (string+ str sox-effect))
	128
	129	(if delete-inter-file
	130	(let ((outstring (sox-out str sox-input output outfile recursive)))
	131	(if (>= om-version 6.07)
	132	(om-run-process "cleantempfiles" #'sleep&clean 5)
	133	(om-run-process "cleantempfiles" sleep&clean 5))
	134	outstring)
	135	(sox-out str sox-input output outfile recursive)
	136	)))
	137
	138	(sox-not-found))
	139	)
	140
	141	; %%%%%%%% METHODS FOR SOX-INPUT CLASSES %%%%%%%%%%%%
	142
	143	; === sox-merge =============
	144
	145	(defmethod! sox-process ((sox-input sox-merge) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	146	(if (probe-file sox-path)
	147
	148	(progn
	149	;(print (sound sox-input))
	150	(let* ((sound (if (> (length (gains sox-input)) (length (list! (sound sox-input))))
	151	(repeat-n (first (list! (sound sox-input))) (length (gains sox-input)))
	152	(sound sox-input))))
	153
	154	(when (and (find-if 'stringp sound) (equal output "pipe")) (om-message-abort "Pipe output not possible with this type of input."))
	155
	156	(let ((outfile (create-path nil output filetype))) ;(create-path (first (soundfiles sox-input)) output filetype)
	157
	158	(let* ((filenames (loop for soundfile in sound collect
	159	(namestring soundfile))))
	160
	161	(setf str (format nil "~s ~a -M " (namestring sox-path) sox-options ))
	162
	163	(if (gains sox-input)
	164	(loop for filename in filenames do
	165	for gain in (db->lin (list! (gains sox-input))) do
	166	(setf str (string+ str (format nil " -v~d ~s " gain filename))))
	167	(loop for filename in filenames do
	168	(setf str (string+ str (format nil " ~s" filename)))))
	169
	170	(setf str (cond ((equal output "realtime") (sox-samplebits (string+ str " -q ") bitdepth samplerate sox-audio-device))
	171	((equal output "pipe") (sox-samplebits str bitdepth samplerate "-p"))
	172	(t (sox-samplebits str bitdepth samplerate outfile))))
	173
	174	(setf str (string+ str sox-effect))
	175
	176	(sox-out str sox-input output outfile recursive)))))
	177
	178	(sox-not-found))
	179	)
	180
	181	; === sox-mix =============
	182
	183	(defmethod! sox-process ((sox-input sox-mix) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	184	(if (probe-file sox-path)
	185
	186	(progn
	187	(when (and (find-if 'stringp (sound sox-input)) (equal output "pipe"))
	188	(om-message-abort "Pipe output not possible with this type of input."))
	189
	190	(let ((outfile (create-path nil output filetype))) ;(create-path (first (soundfiles sox-input)) output filetype)
	191
	192	(let* ((filenames
	193	(loop for soundfile in (sound sox-input) collect ;I guess this throws the error when using pipes as inputs
	194	(namestring soundfile))))
	195
	196	(setf str (format nil "~s ~a -m " (namestring sox-path) sox-options))
	197
	198	;potentially not needed...
	199	;(if (1/n sox-input)
	200
	201	; (loop for filename in filenames do
	202	; for gain in (om/ (db->lin (gains sox-input)) (length (gains sox-input))) do ;(db->lin (list! (gains sox-input))) -> but it's always going to be a list, no?
	203	; (setf str (string+ str (format nil " -v~d ~s " gain filename )))) ; is it not scaling when volumes are given? try out!
	204
	205	(loop for filename in filenames do
	206	for gain in (db->lin (gains sox-input)) do ;(db->lin (list! (gains sox-input))) -> but it's always going to be a list, no?
	207	(setf str (string+ str (format nil " -v~d ~s " gain filename ))))
	208	;)
	209
	210	(setf str (cond ((equal output "realtime") (sox-samplebits (string+ str " -q ") bitdepth samplerate sox-audio-device))
	211	((equal output "pipe") (sox-samplebits str bitdepth samplerate "-p")) ; "-p is an alias for '-t sox -' " and it's better but I can't use as I need to provide the sox path again...
	212	(t (sox-samplebits str bitdepth samplerate outfile))))
	213
	214	(setf str (string+ str sox-effect))
	215
	216	(sox-out str sox-input output outfile recursive))))
	217
	218	(sox-not-found))
	219	)
	220
	221	; === sox-multiply =============
	222
	223	(defmethod! sox-process ((sox-input sox-multiply) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	224	(if (probe-file sox-path)
	225
	226	(progn
	227	(when (and (find-if 'stringp (sound sox-input)) (equal output "pipe"))
	228	(om-message-abort "Pipe output not possible with this type of input."))
	229
	230	(let ((outfile (create-path nil output filetype))) ;(create-path (first (soundfiles sox-input)) output filetype)
	231
	232	(let* ((filenames
	233	(loop for soundfile in (sound sox-input) collect ;I guess this throws the error when using pipes as inputs
	234	(namestring soundfile))))
	235
	236	(setf str (format nil "~s ~a -T " (namestring sox-path) sox-options))
	237
	238	(loop for filename in filenames do
	239	for gain in (db->lin (gains sox-input)) do
	240	(setf str (string+ str (format nil " -v~d ~s " gain filename )))) ; note that "-v" suppresses sox's in-built clipping protection
	241	;)
	242
	243	(setf str (cond ((equal output "realtime") (sox-samplebits (string+ str " -q ") bitdepth samplerate sox-audio-device))
	244	((equal output "pipe") (sox-samplebits str bitdepth samplerate "-p"))
	245	(t (sox-samplebits str bitdepth samplerate outfile))))
	246
	247	(setf str (string+ str sox-effect))
	248
	249	(sox-out str sox-input output outfile recursive))))
	250
	251	(sox-not-found))
	252	)
	253
	254
	255	; === sox-concatenate =============
	256
	257	(defmethod! sox-process ((sox-input sox-concatenate) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	258	(if (probe-file sox-path)
	259
	260	(progn
	261	(when (and (find-if 'stringp (sound sox-input)) (equal output "pipe")) (om-message-abort "Pipe output not possible with this type of input."))
	262
	263	(let ((outfile (create-path nil output filetype))) ;(create-path (first (soundfiles sox-input)) output filetype)
	264
	265	(let* ((filenames (loop for soundfile in (sound sox-input) collect
	266	(namestring soundfile))))
	267
	268	(setf str (format nil "~s ~a " (namestring sox-path) sox-options))
	269
	270	(if (gains sox-input)
	271	(loop for filename in filenames do
	272	for gain in (db->lin (list! (gains sox-input))) do
	273	(setf str (string+ str (format nil " -v~d ~s " gain filename ))))
	274	;I think this case never happens
	275	(loop for filename in filenames do
	276	(setf str (string+ str (format nil " ~s" filename)))))
	277
	278	(setf str (cond ((equal output "realtime") (sox-samplebits (string+ str " -q ") bitdepth samplerate sox-audio-device))
	279	((equal output "pipe") (sox-samplebits str bitdepth samplerate "-p"))
	280	(t (sox-samplebits str bitdepth samplerate outfile))))
	281
	282	(setf str (string+ str sox-effect))
	283	(sox-out str sox-input output outfile recursive))))
	284
	285	(sox-not-found))
	286	)
	287
	288	; === sox-splice ============
	289
	290	(defmethod! sox-process ((sox-input sox-splice) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	291	(if (probe-file sox-path)
	292
	293	(progn
	294	(when (and (find-if 'stringp (sound sox-input)) (equal output "pipe")) (om-message-abort "Pipe output not possible with this type of input."))
	295
	296	(let ((outfile (create-path nil output filetype)))
	297
	298	(let* ((mysoundfiles (sound sox-input))
	299	(filenames (loop for soundfile in mysoundfiles collect (namestring soundfile)))
	300	(first-dur (sox-sound-duration (car (sound sox-input))))
	301	(begins (list! (splice-begin sox-input)))
	302	(ends (list! (splice-end sox-input)))
	303	(tols (list! (tolerance sox-input))))
	304
	305	(sox-print (format nil "begins: ~a" begins))
	306	(sox-print (format nil "ends: ~a" ends))
	307	(sox-print (format nil "tols: ~a" tols))
	308
	309	(setf str (format nil "~s ~a " (namestring sox-path) sox-options))
	310
	311	(loop for filename in filenames do
	312	for gain in (db->lin (list! (gains sox-input))) do
	313	(setf str (string+ str (format nil " -v~d ~s " gain filename ))))
	314
	315	(setf str (cond ((equal output "realtime") (sox-samplebits (string+ str " -q ") bitdepth samplerate sox-audio-device))
	316	((equal output "pipe") (sox-samplebits str bitdepth samplerate "-p"))
	317	(t (sox-samplebits str bitdepth samplerate outfile))))
	318
	319	(setf str
	320	(cond ((eql (fade-type sox-input) 'linear) (string+ str (format nil " splice -t " )))
	321	((eql (fade-type sox-input) 'half-cosine) (string+ str (format nil " splice -h " )))
	322	((eql (fade-type sox-input) 'quarter-cosine) (string+ str (format nil " splice -q " )))
	323	(t (string+ str (format nil " splice " )))))
	324
	325	;dbl-check the sum-calculation. Something's fishy!
	326
	327	(loop for mysound in (sound sox-input)
	328	for end in ends
	329	counting end into ordinal
	330	summing (or (sox-sound-duration mysound) 0) into dur-sum
	331	do
	332	(progn (sox-print ordinal)
	333	(let ((i (- ordinal 1))
	334	(current-sum (- dur-sum (or first-dur 0))))
	335
	336	(sox-print (format nil "begins: ~d" (nth i begins)))
	337	(sox-print (format nil "ends: ~d" (nth i ends)))
	338	(sox-print (format nil "current-sum: ~d" current-sum))
	339
	340	(cond ((and (nth i begins) (nth i tols))
	341	(progn
	342	(sox-print "begin+tol")
	343	(setf str (string+ str (format nil "~d,~d,~d " (+ current-sum (nth i ends)) (* 0.5 (- (nth i ends) (nth i begins))) (nth i tols))))))
	344	((nth i begins)
	345	(progn
	346	(print "begin")
	347	(setf str (string+ str (format nil "~d,~d " (+ current-sum (nth i ends)) (* 0.5 (- (nth i ends) (nth i begins))))))))
	348	(t (progn
	349	(print "end")
	350	(setf str (string+ str (format nil "~d " (+ current-sum (nth i ends))))))))
	351	)))
	352
	353	(setf str (sox-commands sox-effect str))
	354	(sox-out str sox-input output outfile recursive)
	355	)))
	356	(sox-not-found))
	357	)
	358
	359
	360	; === sox-remix =============
	361
	362	(defmethod! sox-process ((sox-input sox-remix) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	363	;(print (first (channels sox-input)))
	364	(if (probe-file sox-path)
	365
	366	(progn
	367	(when (and (stringp (sound sox-input)) (equal output "pipe")) (om-message-abort "Pipe output not possible with this type of input."))
	368
	369	(let* ((inpath (sound sox-input))
	370	(outfile (create-path inpath output filetype)) ;(create-path nil output filetype)
	371	(channel-matrix (list! (channel-matrix sox-input)))) ; is this still needed?
	372
	373	(setf str (format nil "~s ~a ~s" (namestring sox-path) sox-options (namestring inpath)))
	374	; (print (channels sox-input))
	375	; (print (gains sox-input))
	376
	377	(when bitdepth (setf str (string+ str (format nil " -b ~d" bitdepth)))) ;could I not use sox-samplebits here?
	378	(setf str (string+ str (format nil " ~s remix ~a"
	379	(cond ((equal output "realtime") sox-audio-device) ;should add a quiet mode here...
	380	((equal output "pipe") "-p")
	381	(t (namestring outfile)))
	382	(sox-remixconc-no-norm (gain-matrix sox-input) (channel-matrix sox-input))
	383	)))
	384
	385	(when samplerate (setf str (string+ str (format nil " rate ~d " samplerate))))
	386	(setf str (string+ str sox-effect))
	387	(sox-out str inpath output outfile recursive)))
	388	(sox-not-found))
	389	)
	390
	391	; === sox-pan ====================
	392
	393	(defmethod! sox-process ((sox-input sox-pan) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	394	;(print (first (channels sox-input)))
	395	(sox-process (sox-pan->sox-remix (sound sox-input) (car (list! (gains sox-input))) (car (list! (panning sox-input))) (numchannels sox-input))
	396	sox-effect
	397	:output output
	398	:filetype filetype
	399	:samplerate samplerate
	400	:bitdepth bitdepth
	401	:recursive recursive
	402	:batch-mode batch-mode))
	403
	404
	405	; === sox-mix-console =============
	406
	407
	408	; Notes
	409	; I could make this sox-mix-console (non-consistent) a method where a list of effects will be applied to each sound in the mix-console
	410	; OR: keep this as an extra function for the player
	411	; I can't use pipe-input to the mix-console as it makes sox-remix instances with pipe-outputs ->is a pipe in a pipe not possible?
	412
	413
	414	(defmethod! sox-process ((sox-input sox-mix-console) (sox-effect t) &key output filetype samplerate bitdepth recursive batch-mode)
	415	(if (probe-file sox-path)
	416
	417	(progn
	418	;(print "sox-process: sox-mix-console")
	419	(when (and (stringp (sound sox-input)) (equal output "pipe")) (om-message-abort "Pipe output not possible with this type of input."))
	420
	421	(let* ((inpath (sound sox-input))
	422	(outfile (create-path inpath output filetype)) ;(create-path nil output filetype) ; Filetype MUST NOT be pipe (it can be only a sound)
	423
	424	(list-of-pans (loop for path in (list! inpath)
	425	for gain in (gains sox-input)
	426	for pan in (panning sox-input) collect
	427	(make-instance 'sox-pan
	428	:sound path
	429	:gains gain
	430	:panning pan)))
	431
	432	(list-of-pipes (loop for sox-pan in list-of-pans
	433	for i from 0 to (length list-of-pans) collect
	434	(sox-process sox-pan (or (nth i (list! sox-effect)) "") ;note that in this special case a list of effects is applied to each in-sound
	435	:output "pipe"
	436	:filetype filetype
	437	:samplerate samplerate
	438	:bitdepth bitdepth
	439	:recursive recursive
	440	:batch-mode batch-mode)))
	441	)
	442	(if (> (length list-of-pipes) 1)
	443	(sox-process (make-instance 'sox-mix :sound list-of-pipes) ""
	444	:output output
	445	:filetype filetype
	446	:samplerate samplerate
	447	:bitdepth bitdepth
	448	:recursive recursive
	449	:batch-mode batch-mode
	450	)
	451	(sox-process list-of-pipes ""
	452	:output output
	453	:filetype filetype
	454	:samplerate samplerate
	455	:bitdepth bitdepth
	456	:recursive recursive
	457	:batch-mode batch-mode
	458	))
	459	))
	460	(sox-not-found)
	461	))
	462
	463
	464
	465
	466	; === sox-split =============
	467	; special method with (sox-effect t) only for sox-split (returns a sequence of sox-remixes)
	468
	469	(defmethod! sox-process ((sox-input sox-split) (sox-effect t) &key output filetype samplerate bitdepth recursive batch-mode)
	470	(if (probe-file sox-path)
	471
	472	(progn
	473	(cond ((equal output "replace file") (om-message-abort "Replace output not possible with sox-split."))
	474	((and (equal output "pipe") (stringp (sound sox-input))) (om-message-abort "Pipe output not possible with this type of input")))
	475
	476	(let*
	477	((thesoundfile (sound sox-input))
	478	(list-of-remixes (loop for channel in (channels sox-input)
	479	for gain in (gains sox-input) collect
	480	(make-instance 'sox-remix
	481	:sound thesoundfile
	482	:gain-matrix (list gain)
	483	:channel-matrix (list (list channel)))))
	484	;here the 'realtime' and 'pipe' ??
	485	(list-of-outpaths (loop for channel in (channels sox-input) collect
	486	(format nil "~a_omsox-ch~d" (pathname-name thesoundfile) channel))
	487	))
	488
	489	(sox-process list-of-remixes sox-effect
	490	:output (or output list-of-outpaths)
	491	:filetype filetype
	492	:samplerate samplerate
	493	:bitdepth bitdepth
	494	:recursive recursive
	495	:batch-mode batch-mode)))
	496
	497	(sox-not-found))
	498	)
	499
	500
	501
	502
	503
	504	; === sox-record =============
	505
	506	(defmethod! sox-process ((sox-input sox-record) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	507	(if (probe-file sox-path)
	508
	509	(let ((outfile (create-path nil output filetype)))
	510
	511	(setf str (format nil "~s ~a ~s" (namestring sox-path) sox-options sox-audio-device)) ;perhaps sox-recording vs playback-device?
	512
	513	(setf str (cond ((equal output "realtime") (sox-samplebits (string+ str " -q ") bitdepth samplerate sox-audio-device))
	514	((equal output "pipe") (sox-samplebits (string+ str " -q ") bitdepth samplerate "-p"))
	515	(t (sox-samplebits (string+ str " -q ") bitdepth samplerate outfile))))
	516
	517	(setf str (string+ str (format nil " trim 0 ~d " (duration sox-input))))
	518
	519	(cond ((and (channels sox-input) (gains sox-input))
	520	(let ((newstr (format nil " remix" )))
	521	(loop for channel in (channels sox-input)
	522	for gain in (gains sox-input) do
	523	(setf newstr (string+ newstr (format nil " ~av~d " channel (db->lin gain)))))
	524	(setf str (string+ str newstr))))
	525
	526	((gains sox-input)
	527	(let ((newstr (format nil " remix" )))
	528	(loop for item from 1 to (length (gains sox-input))
	529	for gain in (gains sox-input) do
	530	(setf newstr (string+ newstr (format nil " ~av~d " item (db->lin gain)))))
	531	(setf str (string+ str newstr))))
	532
	533	((channels sox-input)
	534	(let ((newstr (format nil " remix" )))
	535	(loop for channel in (channels sox-input) do
	536	(setf newstr (string+ newstr (format nil " ~a" channel))))
	537	(setf str (string+ str newstr))))
	538	)
	539
	540	(setf str (string+ str sox-effect))
	541
	542	(sox-out str sox-input output outfile recursive))
	543
	544	(sox-not-found))
	545	)
	546
	547
	548	; === sox synth =========
	549	#\|
	550	(defmethod! sox-process ((sox-input sox-synth) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	551	(if (probe-file sox-path)
	552
	553	(let ((outfile (create-path nil output filetype)))
	554	(setf str (format nil "~s ~a -n" (namestring sox-path) sox-options))
	555	(setf str (cond ((equal output "realtime") (sox-samplebits (string+ str " -q ") bitdepth samplerate sox-audio-device))
	556	((equal output "pipe") (sox-samplebits str bitdepth samplerate '-p))
	557	(t (sox-samplebits str bitdepth samplerate outfile))))
	558	(setf str (string+ str " synth" (sox-synth-format sox-input)))
	559	(setf str (string+ str sox-effect))
	560	(sox-out str sox-input output outfile recursive))
	561
	562	(sox-not-found))
	563	)
	564	\|#
	565	; %%%%%%%%%%%% LIST METHODS %%%%%%%%%%%%%%%%%%%%%%
	566
	567	; for string + list + list/string
	568	(defmethod! sox-process ((sox-input t) (sox-effect list) &key output filetype samplerate bitdepth recursive batch-mode)
	569	(if (and (listp output) (first output))
	570	(mapcar (lambda (thesox-effect thepath)
	571	(sox-process sox-input thesox-effect :output thepath :filetype filetype :samplerate samplerate
	572	:bitdepth bitdepth :recursive recursive :batch-mode batch-mode)) sox-effect output)
	573	(mapcar (lambda (thesox-effect)
	574	(sox-process sox-input thesox-effect :output output :filetype filetype :samplerate samplerate
	575	:bitdepth bitdepth :recursive recursive :batch-mode batch-mode)) sox-effect)))
	576
	577	; these functions below can be grouped together into multiple if/when statements for the different types of 'output'
	578	;--------------------------------------------------------------------------------------------------------------------
	579	; for list + string + string
	580	(defmethod! sox-process ((sox-input list) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	581	(mapcar (lambda (file)
	582	(sox-process file sox-effect :output output :filetype filetype :samplerate samplerate
	583	:bitdepth bitdepth :recursive recursive :batch-mode batch-mode)) sox-input))
	584
	585	; #### NEED TO MAKE AN EXAMPLE FOR THIS CASE // ALSO, THE LIST LIST FUNCTION method seems to be missing.. PROBABLY FOR AUTO_NAMING FILES (batch processing)
	586	; for list + string + function
	587	(defmethod! sox-process ((sox-input list) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	588	(if (functionp output)
	589	; these 2 cases seem to be identical
	590	(mapcar (lambda (file)
	591	(sox-process file sox-effect :output output :filetype filetype :samplerate samplerate
	592	:bitdepth bitdepth :recursive recursive :batch-mode batch-mode)) sox-input)
	593	(mapcar (lambda (file)
	594	(sox-process file sox-effect :output output :filetype filetype :samplerate samplerate
	595	:bitdepth bitdepth :recursive recursive :batch-mode batch-mode)) sox-input)))
	596
	597	; for list + string + list
	598	(defmethod! sox-process ((sox-input list) (sox-effect string) &key output filetype samplerate bitdepth recursive batch-mode)
	599	(if (and (listp output) (first output))
	600	(mapcar (lambda (file thepath)
	601	(sox-process file sox-effect :output thepath :filetype filetype :samplerate samplerate
	602	:bitdepth bitdepth :recursive recursive :batch-mode batch-mode)) sox-input output)
	603	(mapcar (lambda (file)
	604	(sox-process file sox-effect :output output :filetype filetype :samplerate samplerate
	605	:bitdepth bitdepth :recursive recursive :batch-mode batch-mode)) sox-input)))
	606
	607	; ---------------------------------------------------------------------------------------------------------------------
	608
	609	; for list + list + string/list
	610	(defmethod! sox-process ((sox-input list) (sox-effect list) &key output filetype samplerate bitdepth recursive batch-mode)
	611	(let (
	612	(numsounds (length sox-input))
	613	(numsox-effect (length sox-effect)))
	614
	615	(when (> numsounds numsox-effect)
	616	(progn
	617	(when (equal batch-mode 'cycle)
	618	(setf sox-effect
	619	(flat (group-list sox-effect (list numsounds) 'circular))))
	620	(when (equal batch-mode 'repeat)
	621	(setf sox-effect
	622	(flat (x-append sox-effect (repeat-n (last sox-effect) (- numsounds numsox-effect))))))))
	623
	624	(if (consp output)
	625	(mapcar (lambda (file thesox-effect thepaths)
	626	(sox-process file thesox-effect :output thepaths :filetype filetype :samplerate samplerate
	627	:bitdepth bitdepth :recursive recursive :batch-mode batch-mode)) sox-input sox-effect output)
	628	(mapcar (lambda (file thesox-effect)
	629	(sox-process file thesox-effect :output output :filetype filetype :samplerate samplerate
	630	:bitdepth bitdepth :recursive recursive :batch-mode batch-mode)) sox-input sox-effect))))
	631
	632
	633	; for anything else beep ------------------
	634	(defmethod! sox-process ((sox-input t) (sox-effect t) &key output filetype samplerate bitdepth recursive batch-mode)
	635	(om-beep-msg (format nil "!!! Wrong input type or command for sox-process: ~A with ~A" sox-input sox-effect)))
	636
	637