au_multi_bus

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===== AU Multi-Bus Audio Units & Hosts =====

The AUv3 standard includes the feature of multiple inputs and outputs per plugin, but it was like a chicken and egg problem: since there were no hosts supporting the feature, there were no plugins that would use it and therefor no need for the hosts to implement it at all. This changed in february 2020.

This page contains a list of hosts and AUs supporting this feature, which is also known as „auv3 multi out“, „multi in“ or „au sidechain“ .


^  Hosts^ ^  ^ ^ 
| apeSoft | [[https://apps.apple.com/app/id1378343729 |apeMatrix]] | AU/IAA Routing Tool | input & output bus support for instruments and effects|
| BeepStreet | [[https://apps.apple.com/app/id1469365718|Drambo]] | Modular Groovebox | Standalone supports multi-out AUv3 |
| Giel Bremmers | [[https://apps.apple.com/app/id776998585|MultitrackStudio]] | DAW | Input busses.  Not officially a feature but [[https://forum.audiob.us/discussion/45360/au-multi-out-e-g-digistix-in-multitrackstudio#latest|it works]] |
| Kymatica AB | [[https://apps.apple.com/app/id1055636344|AUM]] | Audio Mixer | input & output bus support for instruments and effects|
| Roland | [[https://apps.apple.com/app/id1473380367|Roland Zenbeats]] | Music Production System | output bus support for instruments |
| Ryo Togawa | [[https://apps.apple.com/app/id1474193057|VADrumSM]] | Virtual Analog Drum Machine | Stand-alone can host AUv3 FX with multi-bus support |
| Steinberg | [[https://apps.apple.com/app/id1207839273|Cubasis 3]] | DAW | Supports side chain input and multi-out busses |
| | | |
^  Instruments^  ^ ^  ^
| 4 Pockets | [[https://apps.apple.com/app/id1497678986|DigiKeys]] | Midi Sequencer and Rompler | 6 output busses |
| 4 Pockets | [[https://apps.apple.com/app/id1479370932|DigiStix]] | Drum Maschine | 8 output busses |
| 4 Pockets | [[https://apps.apple.com/app/id1573886932|DigiStix 2]] | Drum Maschine | 8 output busses |
| 4 Pockets | [[https://apps.apple.com/app/id1507897381|EvolverFX]] | Wave Synthesizer and Sequencer | 4 output busses |
| BeepStreet | [[https://apps.apple.com/app/id1469365718|Drambo]] | Modular Groovebox | 8 output busses |
| Bram Bos | [[https://apps.apple.com/app/id1568699989|Hammerhead]] | Drum Machine | 8 output busses |
| Bram Bos | [[https://apps.apple.com/app/id1122156899|Ruismaker]] | Drum Machine | 8 output busses |
| Bram Bos | [[https://apps.apple.com/app/id1143644577|Ruismaker FM]] | Drum Machine | 6 output busses |
| Dmitrij Pavlov | [[https://apps.apple.com/app/id1481283602|Pure Acid]] | Bassline synth and drum machine | 5 output busses |
| Elliott Garage | [[https://apps.apple.com/app/id1478285477|EP Pulse]] | Drum Machine / Sampler | 16 output busses |
| Elliott Garage | [[https://apps.apple.com/app/id1513990681|sEGments]] | Slicer / Sampler | 16 output busses |
| Frederic Corvest  | [[https://apps.apple.com/app/id1552568814|FAC Drumkit]] | Drum Synthesizer | 16 output busses |
| James Milton | [[https://apps.apple.com/app/id1477029326|Poly 2]] | Generative Drum Sequencer | 10 output busses |
| JimAudio | [[https://apps.apple.com/app/id1481283602|Pure Acid]] | TB 303 and TR Drum Machines | 4 output busses |
| JimAudio | [[https://apps.apple.com/app/id1318750537 |GR-16]] | Groove box | 8 output busses |
| Living Memory Software | [[https://apps.apple.com/app/id1155825562|LayR]] | Multi Timbral Synth | 8 output busses |
| Marek Bereza | [[https://apps.apple.com/app/id1449584007|Koala Sampler]] | Sampler | 8 output busses |
| Marinus JG van de Molegraph | [[https://apps.apple.com/app/id1032935528|DrumPerfect Pro]] | Drum Maschine | 16 output busses (AU Player) |
| Mifiki Limited | [[https://apps.apple.com/app/id1468259834|miRack]] | Eurorack Style Modular Environment | 8  output busses |
| Ryo Togawa | [[https://itunes.apple.com/app/id1474193057|VADrumSM]] | Virtual Analog Drum Maschine | 17 output busses |
| Ryouta Kira | [[https://itunes.apple.com/app/id1330269027|KQ Dixie]] | 6-OP FM Synth | 16 output busses |
| Sugar Bytes | [[https://apps.apple.com/app/id1502238351|Drum Computer]] | Drum Maschine | 8 output busses |
| Woodman’s I.M.S.S. | [[https://apps.apple.com/app/id1538126998|WoodSynth]] | 4 layer analog synth | 4 output busses |
| | | |
^  Effects^  ^  ^
| 4 Pockets | [[https://apps.apple.com/app/id1500710796|Sidechain Compressor]] | Compressor | Sidechain input |
| 4 Pockets | [[https://apps.apple.com/app/id1483833410|MultiTrack]] | Audio Recorder & MultiTrack Player | 3 input and 8 output busses |
| 4 Pockets | [[https://apps.apple.com/app/id1520146960|NuRack]] | Audio FX Processor | 3 input and 3 output busses |
| Audio Damage | [[https://apps.apple.com/app/id1329509841|Filterstation2]] | Stereo Filter FX | Sidechain input |
| Audio Damage | [[https://apps.apple.com/app/id1577986447|OtherDesertCities]] | Delay with unique algorithms | Sidechain input |
| Audio Damage | [[https://apps.apple.com/app/id1498199681|RoughRider3]] | Compressor | Sidechain input |
| BLEASS | [[https://apps.apple.com/app/id1580935730|BLEASS Dragonfly]] | Dynamic Tremolo | Sidechain input |
| BLEASS | [[https://apps.apple.com/app/id1540299083|BLEASS Granulizer]] | Granular texture effect | 4 input busses |
| BLEASS | [[https://apps.apple.com/app/id1580935730|BLEASS Motion EQ]] | 3 band EQ with modulation LFOs | 3 output busses |
| BLEASS | [[https://apps.apple.com/app/id1462418779|BLEASS sidekick]] | Compressor | Sidechain input |
| Bram Bos | [[https://apps.apple.com/app/id1498199681|Scatterbrain]] | Audio Splitter | 4 output busses |
| Bram Bos | [[https://apps.apple.com/app/id1511149985|WOOTT]] | Multiband OTT Dynamics | Main, low-, mid-, and high-band outputs |
| Christian Siedschlag | [[https://apps.apple.com/app/id1511697460|MagicDeathEyeStereo]] | Compressor  | Sidechain input |
| Christian Siedschlag | [[https://apps.apple.com/app/id1241268066|NYCompressor]] | Compressor  | 4 Sidechain inputs |
| Elliott Garage | [[https://apps.apple.com/app/id1547231868|EG ClassicFX]] | 8 classic effects | 8 output busses |
| Elliott Garage | [[https://apps.apple.com/app/id1573219512|EG ModernFX]] | 8 modern effects | 8 output busses |
| FabFilter | [[https://apps.apple.com/app/id1468123337|Pro-C 2]] | Compressor | Sidechain input |
| FabFilter | [[https://apps.apple.com/app/id1468273683|Pro-DS]]  | De-Esser | Sidechain input |
| FabFilter | [[https://apps.apple.com/app/id1468277373|Pro-G]]  | Gate / Expander | Sidechain input |
| FabFilter | [[https://apps.apple.com/app/id1468295823|Pro-L 2]] | Limiter | Sidechain input |
| FabFilter | [[https://apps.apple.com/app/id1468280455|Pro-MB]] | Multiband Dynamics| Sidechain input |
| FabFilter | [[https://apps.apple.com/app/id1401182622|Pro-Q 2]] | EQ | Sidechain input |
| FabFilter | [[https://apps.apple.com/app/id1469019469|Pro-Q 3]] | Dynamic EQ | Sidechain input |
| FabFilter | [[https://apps.apple.com/app/id1518975160|Saturn 2]] | Distortion/Saturation | Sidechain input |
| FabFilter | [[https://apps.apple.com/app/id1569170071|Timeless 3]] | Tape Delay with effects | Sidechain input |
| FabFilter | [[https://apps.apple.com/app/id1594574554|Volcano 3]] | Filter with many modulation options | Sidechain input |
| Frederic Corvest |[[https://apps.apple.com/app/id1489369665|FAC Alteza]] | Shimmer Reverb | Sidechain input |
| Frederic Corvest |[[https://apps.apple.com/app/id1458633968|FAC Bandit]] | Multiband Effects | Main, low-, mid- and high-band outputs |
| iMusicAlbum | [[https://apps.apple.com/app/id1536114453|BeatCutter]] | Experimental slicer and recombiner | 4 input and 4 output busses |
| Kymatica AB |[[https://apps.apple.com/app/id1596371447|AU3FX:Push]] | Compressor | Sidechain input |
| Mani Consulting Ltd | [[https://apps.apple.com/app/id1522438777|Multiband]] | Multiband Splitter | 4 output busses |
| Mani Consulting Ltd | [[https://apps.apple.com/app/id1528675416|Multiband Compressor]] | Multiband Compressor | Sidechain input |
| Mifiki Limited | [[https://apps.apple.com/app/id1468259834|miRack]] | Eurorack Style Modular Environment | 8  input and 8 output busses |
| Nikolozi Pty Ltd | [[https://apps.apple.com/app/id1490002414|Mela - Synth & FX ]] | Multi Effect | Sidechain input |
| Nikolozi Pty Ltd | [[https://apps.apple.com/app/id1525355066|Mela 2 - Synth & FX ]] | Multi Effect | Sidechain input |
| Shattered Glass Audio | [[https://apps.apple.com/us/app/kompresor/id1572077067 | Kompresor]] | Compressor | Sidechain input |
| ToneBoosters | [[https://apps.apple.com/app/id1517791397|TB Compressor]] | Compressor | Sidechain input |
| ToneBoosters | [[https://apps.apple.com/app/id1473111210|TB Equalizer]] | Dynamic EQ | Sidechain input |
| Woodman’s I.M.S.S. | [[https://apps.apple.com/app/id1452052628|WoodLofier]] | Lo-Fi Multi Effect  | Sidechain input |
| Woodman’s I.M.S.S. | [[https://apps.apple.com/app/id1436196516|WoodNGate]] | Gate | Sidechain input |
| Woodman’s I.M.S.S. | [[https://apps.apple.com/app/id1410677870|Woodpressor]] | Compressor | Sidechain input |
| Woodman’s I.M.S.S. | [[https://apps.apple.com/app/id1439116752|Woodulator]] | Delay and Pitch shifter | Sidechain input |

=== Announced ===
  * //Host:// 
  * //Instrument:// 
  * //Effect:// 


{{tag>au au_host au_inst au_fx audio_routing list}}