diff --git a/src/realtime/types.rs b/src/realtime/types.rs
index 0cc70d9..a9df8bd 100644
--- a/src/realtime/types.rs
+++ b/src/realtime/types.rs
@@ -30,17 +30,22 @@ pub struct Session {
 #[serde(rename_all = "lowercase")]
 pub enum RealtimeVoice {
     Alloy,
-    Shimmer,
+    Ash,
+    Ballad,
+    Coral,
     Echo,
+    Sage,
+    Shimmer,
+    Verse,
 }
 
 #[derive(Debug, Serialize, Deserialize, Clone)]
 pub enum AudioFormat {
     #[serde(rename = "pcm16")]
     PCM16,
-    #[serde(rename = "g711-ulaw")]
+    #[serde(rename = "g711_ulaw")]
     G711ULAW,
-    #[serde(rename = "g711-alaw")]
+    #[serde(rename = "g711_alaw")]
     G711ALAW,
 }