| commit | author | age | ||
| 92c40d | 1 | ;********************************************************************* |
| AN | 2 | ; OM-SoX, (c) 2011-2013 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 | ; ==== SOX-MIX-CONSOLE ======================== | |
| 31 | ||
| 32 | ; there's basically 2 options: | |
| 33 | ; 1) Use sox-mix-console but in a way that there can be a list of effects which is applied internally to each of the components (drawback: inconsistent handling of polymorphism) | |
| 34 | ; 2) Write a 'macro' (as a patch) that does what sox-mix-console does, but explicitly 'fills' a sox-mix object with pipes from (sox-process '(sox-remixes) '(sox-pads)) | |
| 35 | ||
| 36 | (defclass! sox-mix-console (sox-input) | |
| 37 | ( | |
| 38 | (gains :accessor gains :initarg :gains :initform nil :documentation *sox-gain-doc*) | |
| 39 | (panning :accessor panning :initform nil :initarg :panning :documentation *sox-panning-doc*) | |
| 40 | (numchannels :accessor numchannels :initform 2 :initarg :numchannels :documentation "Number of output channels for mixing process.") | |
| 41 | ) | |
| 42 | (:icon 12) ;918 | |
| 43 | (:documentation "Sox-Mix-Console allows mixing and panning inputs on an array of output channels. Inputs do not need to have the same number of channels. | |
| 44 | ||
| 45 | Multichannel inputs are first mixed into a single channel before panning/mixing with other soundfiles. | |
| 46 | NB: Input audio must have the same samplerate.") | |
| 47 | ) | |
| 48 | ||
| 49 | ; pipe input not possible with this class | |
| 50 | ; why isn't this using sox-init-panning? not for lists? | |
| 51 | ||
| 52 | (defmethod initialize-instance :after ((self sox-mix-console) &rest args) | |
| 53 | (when (sound self) | |
| 54 | (let* ((sound-length (length (list! (sound self)))) | |
| 55 | (linear-panning (om-scale (arithm-ser 1 sound-length 1) 1 (numchannels self))) | |
| 56 | (panning-list (loop for sound in (list! (sound self)) | |
| 57 | for i from 0 to (- sound-length 1) collect | |
| 58 | (if (soundp sound) | |
| 59 | (if (equal (tracknum sound) 0) | |
| 60 | (nth i linear-panning) | |
| 61 | (+ (tracknum sound) (* 0.01 (pan sound)))) | |
| 62 | ) | |
| 63 | )) | |
| 64 | (nunumchannels (+ 1 (floor (list-max panning-list))))) | |
| 65 | (unless (consp (panning self)) | |
| 66 | (setf (panning self) panning-list)) | |
| 67 | (sox-init-gains self) | |
| 68 | (sox-init-sound self 'list) | |
| 69 | (when (< (numchannels self) (list-max (panning self))) | |
| 70 | (setf (numchannels self) nunumchannels) | |
| 71 | ) | |
| 72 | ) | |
| 73 | ) | |
| 74 | ) | |
