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# Factorio Runtime Docs Version 2.0.77

# ProgrammableSpeakerParameters - Runtime Docs

## ProgrammableSpeakerParameters :: table

#### Table fields

playback_volume | :: float |
playback_mode | :: ProgrammableSpeakerPlaybackMode |
allow_polyphony | :: boolean |
volume_controlled_by_signal | :: boolean |
volume_signal_id | :: SignalID |

Concept used in

- LuaEntity::parameters
- LuaSurface::create_entity()
- BlueprintEntity