1schema_version: 0.3 2type: filter 3identifier: dance 4title: Dance 5version: 1 6copyright: Meltytech, LLC 7license: LGPLv2.1 8language: en 9tags: 10 - Video 11description: > 12 An audio visualization filter that moves the image around proportional to the 13 magnitude of the audio spectrum. 14 15parameters: 16 - identifier: frequency_low 17 title: Low Frequency 18 type: integer 19 description: > 20 The low end of the frequency range to be used to influence the image 21 motion. 22 mutable: yes 23 readonly: no 24 default: 20 25 unit: Hz 26 27 - identifier: frequency_high 28 title: High Frequency 29 type: integer 30 description: > 31 The high end of the frequency range to be used to influence the image 32 motion. 33 mutable: yes 34 readonly: no 35 default: 20000 36 unit: Hz 37 38 - identifier: threshold 39 title: Level Threshold 40 type: float 41 description: > 42 The minimum amplitude of sound that must occur within the frequency range 43 to cause the image to move. 44 motion. 45 mutable: yes 46 readonly: no 47 default: -30 48 minimum: -100 49 maximum: 0 50 unit: dB 51 52 - identifier: osc 53 title: Oscillation 54 type: float 55 description: > 56 Oscillation can be useful to make the image move back and forth during 57 long periods of sound. 58 A value of 0 specifies no oscillation. 59 mutable: yes 60 readonly: no 61 default: 5 62 minimum: 0 63 unit: Hz 64 65 - identifier: initial_zoom 66 title: Initial Zoom 67 type: float 68 description: | 69 The amount to zoom the image before any motion occurs. This can be used to 70 avoid black on the sides of the image when it moves. 71 100% = no zoom 72 < 100% = zoom out (make the image smaller) 73 > 100% = zoom in (make the image larger) 74 mutable: yes 75 readonly: no 76 default: 100 77 minimum: 0 78 maximum: 5000 79 unit: '%' 80 81 - identifier: zoom 82 title: Zoom 83 type: float 84 description: | 85 The amount that the audio affects the zoom of the image. 86 < 0% = Image will zoom out (get smaller) with more sound 87 0% = no zoom 88 > 0% = Image will zoom in (get larger) with more sound 89 mutable: yes 90 readonly: no 91 default: 0 92 minimum: -100 93 maximum: 100 94 unit: '%' 95 96 - identifier: left 97 title: Left 98 type: float 99 description: | 100 The amount that the audio affects the left offset of the image. 101 0% = no left offset 102 > 0% = Image will move left with more sound 103 mutable: yes 104 readonly: no 105 default: 0 106 minimum: 0 107 maximum: 100 108 unit: '%' 109 110 - identifier: right 111 title: Right 112 type: float 113 description: | 114 The amount that the audio affects the right offset of the image. 115 0% = no right offset 116 > 0% = Image will move right with more sound 117 mutable: yes 118 readonly: no 119 default: 0 120 minimum: 0 121 maximum: 100 122 unit: '%' 123 124 - identifier: up 125 title: Up 126 type: float 127 description: | 128 The amount that the audio affects the upward offset of the image. 129 0% = no upward offset 130 > 0% = Image will move up with more sound 131 mutable: yes 132 readonly: no 133 default: 0 134 minimum: 0 135 maximum: 100 136 unit: '%' 137 138 - identifier: down 139 title: Down 140 type: float 141 description: | 142 The amount that the audio affects the downward offset of the image. 143 0% = no downward offset 144 > 0% = Image will move down with more sound 145 mutable: yes 146 readonly: no 147 default: 0 148 minimum: 0 149 maximum: 100 150 unit: '%' 151 152 - identifier: clockwise 153 title: Clockwise 154 type: float 155 description: | 156 The amount that the audio affects the clockwise rotation of the image. 157 0% = no clockwise rotation 158 > 0% = Image will rotate clockwise with more sound 159 mutable: yes 160 readonly: no 161 default: 0 162 minimum: 0 163 maximum: 360 164 unit: degrees 165 166 - identifier: counterclockwise 167 title: Counterclockwise 168 type: float 169 description: | 170 The amount that the audio affects the counterclockwise rotation of the image. 171 0% = no counterclockwise rotation 172 > 0% = Image will rotate counterclockwise with more sound 173 mutable: yes 174 readonly: no 175 default: 0 176 minimum: 0 177 maximum: 360 178 unit: degrees 179 180 - identifier: window_size 181 title: Window Size 182 type: integer 183 description: > 184 The number of samples that the FFT will be performed on. If 185 window_size is less than the number of samples in a frame, extra samples 186 will be ignored. If window_size is more than the number of samples in a 187 frame, samples will be buffered from previous frames to fill the window. 188 The buffering is performed as a sliding window so that the most recent 189 samples are always transformed. 190 mutable: no 191 readonly: no 192 default: 2048 193