env_doppler_emitter
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Bug:Will not play specified sound if the sound is not precached.
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CEnv_Doppler_Emitter |

env_doppler_emitter
is a point entity available in Black Mesa. This entity imitates specified sound, while parent is moving. If used with no parent, it will play sound once after TurnOn input. Used for some NPCs to play their movement sound. The NPCs is: npc_apache, npc_osprey, npc_alien_controller, npc_ichthyosaur, npc_gargantua. By default, it is not in FGD because of its very specific use.

Keyvalues
- Sound Name (soundname) <sound>
- Name of the GameSound entry for the sound to play. Doesn't support direct .wav filenames.
- Pitch (pitch) <float>
- Sound pitch, expressed as a range from 1(low) to 255(high), where 100 is the sound's default pitch. Overriden by soundscripts.
- Distance (distance) <float>
- Maximum distance at which this sound is audible.
Inputs
- TurnOff <void>
- Turns entity off.
- TurnOn <void>
- Turns entity on.