An industry initiative to standardization of Object Based Audio (OBA) positioning data in live production ecosystems, by implementing the Audio Definition Model (ADM) over Open Sound Control (OSC). https://immersive-audio-live.github.io/ADM-OSC/
L-Acoustics, FLUX::SE, Radio-France
Adamson, d&b Audiotechnik, DiGiCo, Dolby, Lawo, Magix, Merging Technologies, Meyer Sound, Steinberg
Immersive audio is gaining ground in different industries, from music streaming to gaming, from live sound to broadcast. ADM or Audio Definition Model, is becoming a popular standard metadata model in some of these industries, with serialADM used in broadcast or ADM bwf or xml files used in the studio.
- To facilitate the sharing of audio objects metadata between a live ecosystem and a broadcast or studio ecosystem.
- To define a basic layer of interoperability between Object Editors and Object renderers while not aiming at replacing more complete manufacturer specific protocols or grammars.
- To define a direct translation of the most relevant ADM Object Properties onto a communication protocol widely used in the live industry, OSC.
- Keeping the grammar scope aligned with the ADM properties.
- Share this proposal with the EBU so they can become a relay, publish and support this initiative.
- Extend this small grammar to more ADM properties (beds, etc.) in the future.
Bijective mapping of the Object subset of ADM with a standard OSC grammar.
- Lightweight network protocol
- Easy to implement
- Human readable
- Supports wildcards and bundles
- Specification: Open Sound Control website
- Available in a plethora of professional audio hardware and software devices
- Sender (client)
- Object Editor sending positioning data to one or more receivers.
- Position data is always normalized
- Receiver (server)
- Handles the (optional) local scaling of normalized data: x, y, z, distance
- The receiver can be a DAW, an ADM renderer, an object editor, a bridge (ADM-OSC <-> sADM)
The current dictionary covers most Object properties from the Audio Definition model. A more complete dictionary is being discussed to cover the remaining parts of the Audio Definition model. OSC Live test tool (talker and listener OSC Live test tool) is now available.
See Repository.
See Issues.
-
Chataigne module (Mathieu Delquignies / d&b audiotechnik)
- to retreive parameters or control ADM-OSC object based audio (OBA) software or hardware with OSC protocol.
-
Tester Desktop application (Jose Gaudin / Meyer Sound)
-
Validator, Test and Stress Test Python Module (Gael Martinet / FLUX:: SE)
- adm_osc module is available to install through pip :
pip install adm-osc
quick examples:
from adm_osc import OscClientServer # create a basic client/server that implement basic ADM-OSC communication with stable parameters # + command monitoring and analyze cs = OscClientServer(address='127.0.0.1', out_port=9000, in_port=9001) # send some individual parameters cs.send_object_position_azimuth(object_number=1, v=-30.0) cs.send_object_position_elevation(object_number=1, v=0.0) cs.send_object_position_distance(object_number=1, v=2.0) # or pack them cs.send_object_polar_position(object_number=1, pos=[-30.0, 0.0, 2.0]) # in cartesian coordinates cs.send_object_cartesian_position(object_number=1, pos=[-5.0, 8.0, 0.0]) # see documentation for full list of available functions # when receiving an adm osc command its analyze will be printed on the command output window # # e.g. # # >> received valid adm message for obj :: 1 :: gain (0.7943282127380371) # >> received valid adm message for obj :: 1 :: position aed (20.33701515197754, 0.0, 0.8807612657546997) # >> received valid adm message for obj :: 1 :: position xyz (-0.2606865465641022, 0.8273822069168091, 0.0) # >> # >> ERROR: unrecognized ADM address : "/adm/obj/1/bril" ! unknown command "/bril/" # >> ERROR: arguments are malformed for "/adm/obj/1/gain :: (1.4791083335876465,)": # >> argument 0 "1.4791083335876465" out of range ! it should be less or equal than "1.0"
from adm_osc import TestClient # create a test client, assume default address (local: '127.0.0.1') # test client can be used to test how receiver will handle all kind of parameters and parameters value range sender = TestClient(out_port=9000) # all stable parameters for a specific object sender.set_object_stable_parameters_to_minimum(object_number=1) sender.set_object_stable_parameters_to_maximum(object_number=1) sender.set_object_stable_parameters_to_default(object_number=1) sender.set_object_stable_parameters_to_random(object_number=1) # all stable parameters for a range of objects sender.set_objects_stable_parameters_minimum(objects_range=range(1, 64)) sender.set_objects_stable_parameters_maximum(objects_range=range(1, 64)) sender.set_objects_stable_parameters_default(objects_range=range(1, 64)) sender.set_objects_stable_parameters_random(objects_range=range(1, 64)) # all stable parameters for all objects sender.set_all_objects_stable_parameters_minimum() sender.set_all_objects_stable_parameters_maximum() sender.set_all_objects_stable_parameters_default() sender.set_all_objects_stable_parameters_random() # see documentation for full list of available functions
from adm_osc import StressClient # create a stress client, assume default address (local: '127.0.0.1') # stress client will send huge amount of data to stress test the receivers sender = StressClient(out_port=9000) # do stress test in cartesian coordinates sender.stress_cartesian_position(number_of_objects=64, duration_in_second=60.0, interval_in_milliseconds=10.0) # do stress test in polar coordinates sender.stress_polar_position(number_of_objects=64, duration_in_second=60.0, interval_in_milliseconds=10.0)
SPAT Revolution (FLUX::SE), L-ISA Controller (L-Acoustics), Ovation (Merging Technologies), Nuendo (Steinberg), SpaceMap Go (Meyer Sound), QLAB 5 (Figure 53), Space Controller (Sound Particles), Modulo Kinetic (Modulo Pi), Iosono (Barco). FletcherMAchine (Adamson)