diff --git a/sound/README.md b/sound/README.md
index 3f1a28a..93ee309 100644
--- a/sound/README.md
+++ b/sound/README.md
@@ -2,4 +2,11 @@
 
 Add any extra sound file here to copy to speaker.
 
-`mute.opus` and `unmute.opus` are licensed MIT from [home-assistant-voice-pe](https://github.com/esphome/home-assistant-voice-pe).
+### Sources
+
+`mute.opus` and `unmute.opus`
+- [home-assistant-voice-pe](https://github.com/esphome/home-assistant-voice-pe).
+- © 2024 by [Clayton Charles Tapp](https://www.cctaudio.com/) licensed under [Creative Commons Attribution 4.0 International](https://creativecommons.org/licenses/by/4.0/?ref=chooser-v1) 
+
+`volume.mp3` and `wakeup2.mp3`
+- Original sounds by Xiaomi, found in firmware.