Filter Plugin

sox.flanger

---
schema_version: 0.1
type: filter
identifier: flanger
title: flanger
version: 1
copyright: Copyright (C) 2003-2011 Ushodaya Enterprises Limited
license: LGPL
language: en
url: http://sox.sourceforge.net/
creator: Dan Dennedy
tags:
  - Audio
description: Process audio using a SoX effect.
bugs:
  - Some effects are stereo only, but MLT processes each channel separately.
  - Some effects have a temporal side-effect that do not work well.
parameters:
  - identifier: argument
    title: Options
    type: string
    format: |
            [delay depth regen width speed shape phase interp]
                              .
                             /|regen
                            / |
                        +--(  |------------+
                        |   \ |            |   .
                       _V_   \|  _______   |   |\ width   ___
                      |   |   ' |       |  |   | \       |   |
                  +-->| + |---->| DELAY |--+-->|  )----->|   |
                  |   |___|     |_______|      | /       |   |
                  |           delay : depth    |/        |   |
              In  |                 : interp   '         |   | Out
              --->+               __:__                  | + |--->
                  |              |     |speed            |   |
                  |              |  ~  |shape            |   |
                  |              |_____|phase            |   |
                  +------------------------------------->|   |
                                                         |___|
                   RANGE DEFAULT DESCRIPTION
            delay   0 30    0    base delay in milliseconds
            depth   0 10    2    added swept delay in milliseconds
            regen -95 +95   0    percentage regeneration (delayed signal feedback)
            width   0 100   71   percentage of delayed signal mixed with original
            speed  0.1 10  0.5   sweeps per second (Hz) 
            shape    --    sin   swept wave shape: sine|triangle
            phase   0 100   25   swept wave percentage phase-shift for multi-channel
                                 (e.g. stereo) flange; 0 = 100 = same phase on each channel
            interp   --    lin   delay-line interpolation: linear|quadratic
...