Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 1 | ============================================= |
| 2 | Sound Blaster Audigy mixer / default DSP code |
| 3 | ============================================= |
| 4 | |
| 5 | This is based on sb-live-mixer.rst. |
| 6 | |
| 7 | The EMU10K2 chips have a DSP part which can be programmed to support |
| 8 | various ways of sample processing, which is described here. |
| 9 | (This article does not deal with the overall functionality of the |
| 10 | EMU10K2 chips. See the manuals section for further details.) |
| 11 | |
| 12 | The ALSA driver programs this portion of chip by default code |
| 13 | (can be altered later) which offers the following functionality: |
| 14 | |
| 15 | |
| 16 | Digital mixer controls |
| 17 | ====================== |
| 18 | |
| 19 | These controls are built using the DSP instructions. They offer extended |
Randy Dunlap | ba35c3a | 2023-01-26 22:39:56 -0800 | [diff] [blame] | 20 | functionality. Only the default built-in code in the ALSA driver is described |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 21 | here. Note that the controls work as attenuators: the maximum value is the |
Oswald Buddenhagen | d3330cb | 2023-04-05 22:12:20 +0200 | [diff] [blame] | 22 | neutral position leaving the signal unchanged. Note that if the same destination |
| 23 | is mentioned in multiple controls, the signal is accumulated and can be clipped |
| 24 | (set to maximal or minimal value without checking for overflow). |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 25 | |
| 26 | |
| 27 | Explanation of used abbreviations: |
| 28 | |
| 29 | DAC |
| 30 | digital to analog converter |
| 31 | ADC |
| 32 | analog to digital converter |
| 33 | I2S |
| 34 | one-way three wire serial bus for digital sound by Philips Semiconductors |
Oswald Buddenhagen | d3330cb | 2023-04-05 22:12:20 +0200 | [diff] [blame] | 35 | (this standard is used for connecting standalone D/A and A/D converters) |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 36 | LFE |
Oswald Buddenhagen | d3330cb | 2023-04-05 22:12:20 +0200 | [diff] [blame] | 37 | low frequency effects (used as subwoofer signal) |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 38 | AC97 |
Oswald Buddenhagen | d3330cb | 2023-04-05 22:12:20 +0200 | [diff] [blame] | 39 | a chip containing an analog mixer, D/A and A/D converters |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 40 | IEC958 |
| 41 | S/PDIF |
| 42 | FX-bus |
| 43 | the EMU10K2 chip has an effect bus containing 64 accumulators. |
Oswald Buddenhagen | d3330cb | 2023-04-05 22:12:20 +0200 | [diff] [blame] | 44 | Each of the synthesizer voices can feed its output to these accumulators |
| 45 | and the DSP microcontroller can operate with the resulting sum. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 46 | |
| 47 | name='PCM Front Playback Volume',index=0 |
| 48 | ---------------------------------------- |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 49 | This control is used to attenuate samples from left and right front PCM FX-bus |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 50 | accumulators. ALSA uses accumulators 8 and 9 for left and right front PCM |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 51 | samples for 5.1 playback. The result samples are forwarded to the front speakers. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 52 | |
| 53 | name='PCM Surround Playback Volume',index=0 |
| 54 | ------------------------------------------- |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 55 | This control is used to attenuate samples from left and right surround PCM FX-bus |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 56 | accumulators. ALSA uses accumulators 2 and 3 for left and right surround PCM |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 57 | samples for 5.1 playback. The result samples are forwarded to the surround (rear) |
| 58 | speakers. |
| 59 | |
| 60 | name='PCM Side Playback Volume',index=0 |
| 61 | --------------------------------------- |
| 62 | This control is used to attenuate samples from left and right side PCM FX-bus |
| 63 | accumulators. ALSA uses accumulators 14 and 15 for left and right side PCM |
| 64 | samples for 7.1 playback. The result samples are forwarded to the side speakers. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 65 | |
| 66 | name='PCM Center Playback Volume',index=0 |
| 67 | ----------------------------------------- |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 68 | This control is used to attenuate samples from center PCM FX-bus accumulator. |
| 69 | ALSA uses accumulator 6 for center PCM samples for 5.1 playback. The result |
| 70 | samples are forwarded to the center speaker. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 71 | |
| 72 | name='PCM LFE Playback Volume',index=0 |
| 73 | -------------------------------------- |
| 74 | This control is used to attenuate sample for LFE PCM FX-bus accumulator. |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 75 | ALSA uses accumulator 7 for LFE PCM samples for 5.1 playback. The result |
| 76 | samples are forwarded to the subwoofer. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 77 | |
| 78 | name='PCM Playback Volume',index=0 |
| 79 | ---------------------------------- |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 80 | This control is used to attenuate samples from left and right PCM FX-bus |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 81 | accumulators. ALSA uses accumulators 0 and 1 for left and right PCM samples for |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 82 | stereo playback. The result samples are forwarded to the front speakers. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 83 | |
| 84 | name='PCM Capture Volume',index=0 |
| 85 | --------------------------------- |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 86 | This control is used to attenuate samples from left and right PCM FX-bus |
| 87 | accumulators. ALSA uses accumulators 0 and 1 for left and right PCM samples for |
| 88 | stereo playback. The result is forwarded to the standard capture PCM device. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 89 | |
| 90 | name='Music Playback Volume',index=0 |
| 91 | ------------------------------------ |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 92 | This control is used to attenuate samples from left and right MIDI FX-bus |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 93 | accumulators. ALSA uses accumulators 4 and 5 for left and right MIDI samples. |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 94 | The result samples are forwarded to the virtual stereo mixer. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 95 | |
| 96 | name='Music Capture Volume',index=0 |
| 97 | ----------------------------------- |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 98 | These controls are used to attenuate samples from left and right MIDI FX-bus |
| 99 | accumulator. ALSA uses accumulators 4 and 5 for left and right MIDI samples. |
| 100 | The result is forwarded to the standard capture PCM device. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 101 | |
| 102 | name='Mic Playback Volume',index=0 |
| 103 | ---------------------------------- |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 104 | This control is used to attenuate samples from left and right Mic input of |
| 105 | the AC97 codec. The result samples are forwarded to the virtual stereo mixer. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 106 | |
| 107 | name='Mic Capture Volume',index=0 |
| 108 | --------------------------------- |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 109 | This control is used to attenuate samples from left and right Mic input of |
| 110 | the AC97 codec. The result is forwarded to the standard capture PCM device. |
| 111 | |
| 112 | The original samples are also forwarded to the Mic capture PCM device (device 1; |
| 113 | 16bit/8KHz mono) without volume control. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 114 | |
| 115 | name='Audigy CD Playback Volume',index=0 |
| 116 | ---------------------------------------- |
| 117 | This control is used to attenuate samples from left and right IEC958 TTL |
| 118 | digital inputs (usually used by a CDROM drive). The result samples are |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 119 | forwarded to the virtual stereo mixer. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 120 | |
| 121 | name='Audigy CD Capture Volume',index=0 |
| 122 | --------------------------------------- |
| 123 | This control is used to attenuate samples from left and right IEC958 TTL |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 124 | digital inputs (usually used by a CDROM drive). The result is forwarded |
| 125 | to the standard capture PCM device. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 126 | |
| 127 | name='IEC958 Optical Playback Volume',index=0 |
| 128 | --------------------------------------------- |
| 129 | This control is used to attenuate samples from left and right IEC958 optical |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 130 | digital input. The result samples are forwarded to the virtual stereo mixer. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 131 | |
| 132 | name='IEC958 Optical Capture Volume',index=0 |
| 133 | -------------------------------------------- |
| 134 | This control is used to attenuate samples from left and right IEC958 optical |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 135 | digital inputs. The result is forwarded to the standard capture PCM device. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 136 | |
| 137 | name='Line2 Playback Volume',index=0 |
| 138 | ------------------------------------ |
| 139 | This control is used to attenuate samples from left and right I2S ADC |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 140 | inputs (on the AudigyDrive). The result samples are forwarded to the virtual |
| 141 | stereo mixer. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 142 | |
| 143 | name='Line2 Capture Volume',index=1 |
| 144 | ----------------------------------- |
| 145 | This control is used to attenuate samples from left and right I2S ADC |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 146 | inputs (on the AudigyDrive). The result is forwarded to the standard capture |
| 147 | PCM device. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 148 | |
| 149 | name='Analog Mix Playback Volume',index=0 |
| 150 | ----------------------------------------- |
| 151 | This control is used to attenuate samples from left and right I2S ADC |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 152 | inputs from Philips ADC. The result samples are forwarded to the virtual |
| 153 | stereo mixer. This contains mix from analog sources like CD, Line In, Aux, .... |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 154 | |
| 155 | name='Analog Mix Capture Volume',index=1 |
| 156 | ---------------------------------------- |
| 157 | This control is used to attenuate samples from left and right I2S ADC |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 158 | inputs Philips ADC. The result is forwarded to the standard capture PCM device. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 159 | |
| 160 | name='Aux2 Playback Volume',index=0 |
| 161 | ----------------------------------- |
| 162 | This control is used to attenuate samples from left and right I2S ADC |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 163 | inputs (on the AudigyDrive). The result samples are forwarded to the virtual |
| 164 | stereo mixer. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 165 | |
| 166 | name='Aux2 Capture Volume',index=1 |
| 167 | ---------------------------------- |
| 168 | This control is used to attenuate samples from left and right I2S ADC |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 169 | inputs (on the AudigyDrive). The result is forwarded to the standard capture |
| 170 | PCM device. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 171 | |
| 172 | name='Front Playback Volume',index=0 |
| 173 | ------------------------------------ |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 174 | This control is used to attenuate samples from the virtual stereo mixer. |
| 175 | The result samples are forwarded to the front speakers. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 176 | |
| 177 | name='Surround Playback Volume',index=0 |
| 178 | --------------------------------------- |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 179 | This control is used to attenuate samples from the virtual stereo mixer. |
| 180 | The result samples are forwarded to the surround (rear) speakers. |
| 181 | |
| 182 | name='Side Playback Volume',index=0 |
| 183 | ----------------------------------- |
| 184 | This control is used to attenuate samples from the virtual stereo mixer. |
| 185 | The result samples are forwarded to the side speakers. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 186 | |
| 187 | name='Center Playback Volume',index=0 |
| 188 | ------------------------------------- |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 189 | This control is used to attenuate samples from the virtual stereo mixer. |
| 190 | The result samples are forwarded to the center speaker. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 191 | |
| 192 | name='LFE Playback Volume',index=0 |
| 193 | ---------------------------------- |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 194 | This control is used to attenuate samples from the virtual stereo mixer. |
| 195 | The result samples are forwarded to the subwoofer. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 196 | |
| 197 | name='Tone Control - Switch',index=0 |
| 198 | ------------------------------------ |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 199 | This control turns the tone control on or off. The samples forwarded to |
| 200 | the speaker outputs are affected. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 201 | |
| 202 | name='Tone Control - Bass',index=0 |
| 203 | ---------------------------------- |
| 204 | This control sets the bass intensity. There is no neutral value!! |
| 205 | When the tone control code is activated, the samples are always modified. |
| 206 | The closest value to pure signal is 20. |
| 207 | |
| 208 | name='Tone Control - Treble',index=0 |
| 209 | ------------------------------------ |
| 210 | This control sets the treble intensity. There is no neutral value!! |
| 211 | When the tone control code is activated, the samples are always modified. |
| 212 | The closest value to pure signal is 20. |
| 213 | |
| 214 | name='Master Playback Volume',index=0 |
| 215 | ------------------------------------- |
Oswald Buddenhagen | 13890a6 | 2023-08-26 00:21:56 +0200 | [diff] [blame] | 216 | This control is used to attenuate samples forwarded to the speaker outputs. |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 217 | |
| 218 | name='IEC958 Optical Raw Playback Switch',index=0 |
| 219 | ------------------------------------------------- |
| 220 | If this switch is on, then the samples for the IEC958 (S/PDIF) digital |
Oswald Buddenhagen | d3330cb | 2023-04-05 22:12:20 +0200 | [diff] [blame] | 221 | output are taken only from the raw iec958 ALSA PCM device (which uses |
| 222 | accumulators 20 and 21 for left and right PCM by default). |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 223 | |
| 224 | |
| 225 | PCM stream related controls |
| 226 | =========================== |
| 227 | |
| 228 | name='EMU10K1 PCM Volume',index 0-31 |
| 229 | ------------------------------------ |
Oswald Buddenhagen | bcdbd3b | 2023-05-14 19:03:23 +0200 | [diff] [blame] | 230 | Channel volume attenuation in range 0-0x1fffd. The middle value (no |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 231 | attenuation) is default. The channel mapping for three values is |
| 232 | as follows: |
| 233 | |
| 234 | * 0 - mono, default 0xffff (no attenuation) |
| 235 | * 1 - left, default 0xffff (no attenuation) |
| 236 | * 2 - right, default 0xffff (no attenuation) |
| 237 | |
| 238 | name='EMU10K1 PCM Send Routing',index 0-31 |
| 239 | ------------------------------------------ |
Oswald Buddenhagen | d3330cb | 2023-04-05 22:12:20 +0200 | [diff] [blame] | 240 | This control specifies the destination - FX-bus accumulators. There are 24 |
| 241 | values in this mapping: |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 242 | |
Oswald Buddenhagen | 155e3d3 | 2023-05-16 11:36:07 +0200 | [diff] [blame] | 243 | * 0 - mono, A destination (FX-bus 0-63), default 0 |
| 244 | * 1 - mono, B destination (FX-bus 0-63), default 1 |
| 245 | * 2 - mono, C destination (FX-bus 0-63), default 2 |
| 246 | * 3 - mono, D destination (FX-bus 0-63), default 3 |
| 247 | * 4 - mono, E destination (FX-bus 0-63), default 4 |
| 248 | * 5 - mono, F destination (FX-bus 0-63), default 5 |
| 249 | * 6 - mono, G destination (FX-bus 0-63), default 6 |
| 250 | * 7 - mono, H destination (FX-bus 0-63), default 7 |
| 251 | * 8 - left, A destination (FX-bus 0-63), default 0 |
| 252 | * 9 - left, B destination (FX-bus 0-63), default 1 |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 253 | * 10 - left, C destination (FX-bus 0-63), default 2 |
| 254 | * 11 - left, D destination (FX-bus 0-63), default 3 |
Oswald Buddenhagen | 155e3d3 | 2023-05-16 11:36:07 +0200 | [diff] [blame] | 255 | * 12 - left, E destination (FX-bus 0-63), default 4 |
| 256 | * 13 - left, F destination (FX-bus 0-63), default 5 |
| 257 | * 14 - left, G destination (FX-bus 0-63), default 6 |
| 258 | * 15 - left, H destination (FX-bus 0-63), default 7 |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 259 | * 16 - right, A destination (FX-bus 0-63), default 0 |
| 260 | * 17 - right, B destination (FX-bus 0-63), default 1 |
| 261 | * 18 - right, C destination (FX-bus 0-63), default 2 |
| 262 | * 19 - right, D destination (FX-bus 0-63), default 3 |
Oswald Buddenhagen | 155e3d3 | 2023-05-16 11:36:07 +0200 | [diff] [blame] | 263 | * 20 - right, E destination (FX-bus 0-63), default 4 |
| 264 | * 21 - right, F destination (FX-bus 0-63), default 5 |
| 265 | * 22 - right, G destination (FX-bus 0-63), default 6 |
| 266 | * 23 - right, H destination (FX-bus 0-63), default 7 |
Takashi Iwai | 72e6916 | 2016-11-10 16:25:42 +0100 | [diff] [blame] | 267 | |
| 268 | Don't forget that it's illegal to assign a channel to the same FX-bus accumulator |
| 269 | more than once (it means 0=0 && 1=0 is an invalid combination). |
| 270 | |
| 271 | name='EMU10K1 PCM Send Volume',index 0-31 |
| 272 | ----------------------------------------- |
| 273 | It specifies the attenuation (amount) for given destination in range 0-255. |
| 274 | The channel mapping is following: |
| 275 | |
| 276 | * 0 - mono, A destination attn, default 255 (no attenuation) |
| 277 | * 1 - mono, B destination attn, default 255 (no attenuation) |
| 278 | * 2 - mono, C destination attn, default 0 (mute) |
| 279 | * 3 - mono, D destination attn, default 0 (mute) |
| 280 | * 4 - mono, E destination attn, default 0 (mute) |
| 281 | * 5 - mono, F destination attn, default 0 (mute) |
| 282 | * 6 - mono, G destination attn, default 0 (mute) |
| 283 | * 7 - mono, H destination attn, default 0 (mute) |
| 284 | * 8 - left, A destination attn, default 255 (no attenuation) |
| 285 | * 9 - left, B destination attn, default 0 (mute) |
| 286 | * 10 - left, C destination attn, default 0 (mute) |
| 287 | * 11 - left, D destination attn, default 0 (mute) |
| 288 | * 12 - left, E destination attn, default 0 (mute) |
| 289 | * 13 - left, F destination attn, default 0 (mute) |
| 290 | * 14 - left, G destination attn, default 0 (mute) |
| 291 | * 15 - left, H destination attn, default 0 (mute) |
| 292 | * 16 - right, A destination attn, default 0 (mute) |
| 293 | * 17 - right, B destination attn, default 255 (no attenuation) |
| 294 | * 18 - right, C destination attn, default 0 (mute) |
| 295 | * 19 - right, D destination attn, default 0 (mute) |
| 296 | * 20 - right, E destination attn, default 0 (mute) |
| 297 | * 21 - right, F destination attn, default 0 (mute) |
| 298 | * 22 - right, G destination attn, default 0 (mute) |
| 299 | * 23 - right, H destination attn, default 0 (mute) |
| 300 | |
| 301 | |
| 302 | |
| 303 | MANUALS/PATENTS |
| 304 | =============== |
| 305 | |
Oswald Buddenhagen | d945ef36 | 2023-08-26 00:21:55 +0200 | [diff] [blame] | 306 | See sb-live-mixer.rst. |