# Advanced Audio Features

## Model Independent

These are sounds that are not special to any specific model, and are located in `/SOUNDS/language` and `/SOUNDS/language/SYSTEM` on your radio's SD card/on-board storage when correctly configured. 

The files in `/SOUNDS/language/SYSTEM` are automatically played by the radio in response to specific events, such as turning the radio on, telemetry being lost, switches being in the wrong position, etc. 

You can also add `Play Track` Global Functions that will play in response to whatever trigger condition you wish. 

## Model Dependent

These are sounds that are specific to a  given model, and are located in `/SOUNDS/language` and `/SOUNDS/language/model_name` on your radio's SD card/on-board storage when correctly configured.\
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The files in `/SOUNDS/language` are available for use with Play Track Special Functions, and will play in response to whatever trigger condition you configure.

In addition to the `Play Track` Special Function, there is also the ability to configure audio be played by simply placing audio files into a directory with the same name as the model. 

For example, for English, with a model named `Ruxus 5`, you would create a folder named `/SOUNDS/en/Ruxus_5/` (note the need to replace spaces with underscores). 

Then, just create/copy audio files (of the correct format!) for any of the following trigger events into that folder. 

### Model Load

Will be played after the startup switch checks are completed when turning the radio on or when switching to the configured model. 

Filename: `name.wav` 

### Switches

Played on change of switch position.

Filename structure: `switchID-position.wav`

* `SA-up.wav`
* `SA-mid.wav` (if position present)
* `SA-down.wav`

### Multi-position / Stepped Switches

Played on change of switch position.

Filename structure (hyphens added for clarity): `P-switchNumber-position.wav`

* `P11.wav`  (Pot 1, position 1)
* `P16.wav`  (Pot 1, position 6)

### Logical Switches

Played when the logical switch changes state.

Filename structure: `switchID-condition.wav`

* `L1-up.wav` (true)
* `L1-down.wav` (false)

### Flight Modes

Played on entering or exiting flight mode. 

Filename structure: `modeName-condition.wav` (Note: No spaces in the flight mode name)

* `ABC–off.wav`
* `ABC–on.wav`