Add audio detectors docs

docs/docs/configuration/audio_detectors.md

@@ -0,0 +1,63 @@
+---
+id: audio_detectors
+title: Audio Detectors
+---
+
+Frigate provides a builtin audio detector which runs on the CPU. Compared to object detection in images, audio detection is a relatively lightweight operation so the only option is to run the detection on a CPU.
+
+## Configuration
+
+Audio events work by detecting a type of audio and creating an event, the event will end once the type of audio has not been heard for the configured amount of time. Audio events save a snapshot at the beginning of the event as well as recordings throughout the event. The recordings are retained using the configured recording retention.
+
+### Enabling Audio Events
+
+Audio events can be enabled for all cameras or only for specific cameras.
+
+```yaml
+
+audio: # <- enable audio events for all camera
+  enabled: True
+
+cameras:
+  front_camera:
+    ffmpeg:
+    ...
+    audio:
+      enabled: True # <- enable audio events for the front_camera
+```
+
+If you are using multiple streams then you must set the `audio` role on the stream that is going to be used for audio detection, this can be any stream but the stream must have audio included.
+
+:::note
+
+The ffmpeg process for capturing audio will be a separate connection to the camera along with the other roles assigned to the camera, for this reason it is recommended that the go2rtc restream is used for this purpose. See [the restream docs](/configuration/restream.md) for more information.
+
+:::
+
+```yaml
+cameras:
+  front_camera:
+    ffmpeg:
+      inputs:
+        - path: rtsp://.../main_stream
+          roles:
+            - record
+        - path: rtsp://.../sub_stream # <- this stream must have audio enabled
+          roles:
+            - audio
+            - detect
+```
+
+### Configuring Audio Events
+
+The included audio model has over 500 different types of audio that can be detected, many of which are not practical. By default `bark`, `speech`, `yell`, and `scream` are enabled but these can be customized.
+
+```yaml
+audio:
+  enabled: True
+  listen:
+    - bark
+    - scream
+    - speech
+    - yell
+```

docs/docs/configuration/object_detectors.md

@@ -1,6 +1,6 @@
 ---
-id: detectors
-title: Detectors
+id: object_detectors
+title: Object Detectors
 ---
 
 Frigate provides the following builtin detector types: `cpu`, `edgetpu`, `openvino`, and `tensorrt`. By default, Frigate will use a single CPU detector. Other detectors may require additional configuration as described below. When using multiple detectors they will run in dedicated processes, but pull from a common queue of detection requests from across all cameras.

docs/sidebars.js

@@ -16,7 +16,8 @@ module.exports = {
     ],
     Configuration: [
       "configuration/index",
-      "configuration/detectors",
+      "configuration/object_detectors",
+      "configuration/audio_detectors",
       "configuration/cameras",
       "configuration/masks",
       "configuration/record",