# Audio Codec Overlay
The `audio_codec` Default Overlay File is used to create an overlay based on the audio codec available on each item within your library.
**This file works with Movie and TV Libraries.**
**Designed for [TRaSH Guides ](https://trash-guides.info/ ) filename naming scheme**
![](images/audio_codec.png)
## Supported Audio Codecs
| Audio Codec | Key | Weight |
|:-----------------------|:--------------:|:------:|
| Dolby TrueHD Atmos | `truehd_atmos` | `160` |
| DTS-X | `dtsx` | `150` |
| Dolby Digital+ / E-AC3 | `plus_atmos` | `140` |
| Dolby Atmos | `dolby_atmos` | `130` |
| Dolby TrueHD | `truehd` | `120` |
| DTS-HD-MA | `ma` | `110` |
| FLAC | `flac` | `100` |
| PCM | `pcm` | `90` |
| DTS-HD-HRA | `hra` | `80` |
| Dolby Digital+ | `plus` | `70` |
| DTS-ES | `dtses` | `60` |
| DTS | `dts` | `50` |
| Dolby Digital | `digital` | `40` |
| AAC | `aac` | `30` |
| MP3 | `mp3` | `20` |
| Opus | `opus` | `10` |
#### Standard Style
Below is a screenshot of the alternative Standard (`standard`) style which can be set via the `style` template variable.
![](images/audio_codec2.png)
## Config
The below YAML in your config.yml will create the overlays:
```yaml
libraries:
Movies:
overlay_path:
- pmm: audio_codec
TV Shows:
overlay_path:
- pmm: audio_codec
- pmm: audio_codec
template_variables:
overlay_level: season
- pmm: audio_codec
template_variables:
overlay_level: episode
```
## Template Variables
Template Variables can be used to manipulate the file in various ways to slightly change how it works without having to make your own local copy.
Note that the `templates_variables:` section only needs to be used if you do want to actually change how the defaults work. Any value not specified is its default value if it has one if not it's just ignored.
All [Shared Overlay Variables ](variables ) are available with the default values below as well as the additional Variables below which can be used to customize the file.
| Variable | Default |
|:--------------------|:-----------:|
| `horizontal_offset` | `0` |
| `horizontal_align` | `center` |
| `vertical_offset` | `15` |
| `vertical_align` | `top` |
| `back_color` | `#00000099` |
| `back_radius` | `30` |
| `back_width` | `305` |
| `back_height` | `105` /`189` |
| Variable | Description & Values |
|:-----------------|:-------------------------------------------------------------------------------------------------------------|
| `style` | **Description:** Choose the Overlay Style.< br > **Default:** `compact` < br > **Values:** `compact` or `standard` |
| `overlay_level` | **Description:** Choose the Overlay Level.< br > **Values:** `season` or `episode` |
| `weight_<<key>>` | **Description:** Controls the weight of the Overlay. Higher numbers have priority.< br > **Values:** Any Number |
The below is an example config.yml extract with some Template Variables added in to change how the file works.
```yaml
libraries:
Movies:
overlay_path:
- pmm: audio_codec
template_variables:
use_opus: false
use_mp3: false
style: standard
```