diff --git a/internal/__snapshots__/exportTypeScriptSchemas.test.ts.snap b/internal/__snapshots__/exportTypeScriptSchemas.test.ts.snap
index 0296c89..41aa397 100644
--- a/internal/__snapshots__/exportTypeScriptSchemas.test.ts.snap
+++ b/internal/__snapshots__/exportTypeScriptSchemas.test.ts.snap
@@ -247,11 +247,7 @@ export type CompressedAudio = {
   /** Timestamp of audio frame */
   timestamp: Time;
 
-  /**
-   * Compressed audio frame data.
-   * 
-   * TK
-   */
+  /** Compressed audio frame data. */
   data: Uint8Array;
 
   /**
@@ -267,6 +263,12 @@ export type CompressedAudio = {
    *  Supported values: \`key\`, \`delta\`.
    */
   type: string;
+
+  /** Number of audio samples per second. */
+  sample_rate: number;
+
+  /** Number of audio channels in the input. */
+  number_of_channels: number;
 };
 ",
   "CylinderPrimitive" => "// Generated by https://github.com/foxglove/schemas
diff --git a/internal/schemas.ts b/internal/schemas.ts
index ab01a1e..42f9ae8 100644
--- a/internal/schemas.ts
+++ b/internal/schemas.ts
@@ -856,9 +856,7 @@ const CompressedAudio: FoxgloveMessageSchema = {
     {
       name: "data",
       type: { type: "primitive", name: "bytes" },
-      description: `Compressed audio frame data.
-
-TK`,
+      description: `Compressed audio frame data.`,
     },
     {
       name: "format",
@@ -870,6 +868,16 @@ TK`,
       type: { type: "primitive", name: "string" },
       description: "Frame type.\n\n Supported values: `key`, `delta`.",
     },
+    {
+      name: "sample_rate",
+      type: { type: "primitive", name: "uint32" },
+      description: "Number of audio samples per second.",
+    },
+    {
+      name: "number_of_channels",
+      type: { type: "primitive", name: "uint32" },
+      description: "Number of audio channels in the input.",
+    },
   ],
 };
 
diff --git a/ros_foxglove_msgs/ros1/CompressedAudio.msg b/ros_foxglove_msgs/ros1/CompressedAudio.msg
index f9cdfc0..3680dd2 100644
--- a/ros_foxglove_msgs/ros1/CompressedAudio.msg
+++ b/ros_foxglove_msgs/ros1/CompressedAudio.msg
@@ -7,8 +7,6 @@
 time timestamp
 
 # Compressed audio frame data.
-# 
-# TK
 uint8[] data
 
 # Audio format.
@@ -20,3 +18,9 @@ string format
 # 
 #  Supported values: `key`, `delta`.
 string type
+
+# Number of audio samples per second.
+uint32 sample_rate
+
+# Number of audio channels in the input.
+uint32 number_of_channels
diff --git a/ros_foxglove_msgs/ros2/CompressedAudio.msg b/ros_foxglove_msgs/ros2/CompressedAudio.msg
index 31dc397..a03030f 100644
--- a/ros_foxglove_msgs/ros2/CompressedAudio.msg
+++ b/ros_foxglove_msgs/ros2/CompressedAudio.msg
@@ -7,8 +7,6 @@
 builtin_interfaces/Time timestamp
 
 # Compressed audio frame data.
-# 
-# TK
 uint8[] data
 
 # Audio format.
@@ -20,3 +18,9 @@ string format
 # 
 #  Supported values: `key`, `delta`.
 string type
+
+# Number of audio samples per second.
+uint32 sample_rate
+
+# Number of audio channels in the input.
+uint32 number_of_channels
diff --git a/schemas/README.md b/schemas/README.md
index 57b041c..0a5d1fb 100644
--- a/schemas/README.md
+++ b/schemas/README.md
@@ -585,8 +585,6 @@ bytes
 
 Compressed audio frame data.
 
-TK
-
 </td>
 </tr>
 <tr>
@@ -617,6 +615,32 @@ Frame type.
 
  Supported values: `key`, `delta`.
 
+</td>
+</tr>
+<tr>
+<td><code>sample_rate</code></td>
+<td>
+
+uint32
+
+</td>
+<td>
+
+Number of audio samples per second.
+
+</td>
+</tr>
+<tr>
+<td><code>number_of_channels</code></td>
+<td>
+
+uint32
+
+</td>
+<td>
+
+Number of audio channels in the input.
+
 </td>
 </tr>
 </table>
diff --git a/schemas/flatbuffer/CompressedAudio.fbs b/schemas/flatbuffer/CompressedAudio.fbs
index 211df16..fbee197 100644
--- a/schemas/flatbuffer/CompressedAudio.fbs
+++ b/schemas/flatbuffer/CompressedAudio.fbs
@@ -10,8 +10,6 @@ table CompressedAudio {
   timestamp:Time (id: 0);
 
   /// Compressed audio frame data.
-  /// 
-  /// TK
   data:[uint8] (id: 1);
 
   /// Audio format.
@@ -23,6 +21,12 @@ table CompressedAudio {
   /// 
   ///  Supported values: `key`, `delta`.
   type:string (id: 3);
+
+  /// Number of audio samples per second.
+  sample_rate:uint32 (id: 4);
+
+  /// Number of audio channels in the input.
+  number_of_channels:uint32 (id: 5);
 }
 
 root_type CompressedAudio;
diff --git a/schemas/jsonschema/CompressedAudio.json b/schemas/jsonschema/CompressedAudio.json
index c4d1274..835be23 100644
--- a/schemas/jsonschema/CompressedAudio.json
+++ b/schemas/jsonschema/CompressedAudio.json
@@ -23,7 +23,7 @@
     "data": {
       "type": "string",
       "contentEncoding": "base64",
-      "description": "Compressed audio frame data.\n\nTK"
+      "description": "Compressed audio frame data."
     },
     "format": {
       "type": "string",
@@ -32,6 +32,16 @@
     "type": {
       "type": "string",
       "description": "Frame type.\n\n Supported values: `key`, `delta`."
+    },
+    "sample_rate": {
+      "type": "integer",
+      "minimum": 0,
+      "description": "Number of audio samples per second."
+    },
+    "number_of_channels": {
+      "type": "integer",
+      "minimum": 0,
+      "description": "Number of audio channels in the input."
     }
   }
 }
diff --git a/schemas/jsonschema/index.ts b/schemas/jsonschema/index.ts
index 8c06a1e..e8ffa52 100644
--- a/schemas/jsonschema/index.ts
+++ b/schemas/jsonschema/index.ts
@@ -394,7 +394,7 @@ export const CompressedAudio = {
     "data": {
       "type": "string",
       "contentEncoding": "base64",
-      "description": "Compressed audio frame data.\n\nTK"
+      "description": "Compressed audio frame data."
     },
     "format": {
       "type": "string",
@@ -403,6 +403,16 @@ export const CompressedAudio = {
     "type": {
       "type": "string",
       "description": "Frame type.\n\n Supported values: `key`, `delta`."
+    },
+    "sample_rate": {
+      "type": "integer",
+      "minimum": 0,
+      "description": "Number of audio samples per second."
+    },
+    "number_of_channels": {
+      "type": "integer",
+      "minimum": 0,
+      "description": "Number of audio channels in the input."
     }
   }
 };
diff --git a/schemas/omgidl/foxglove/CompressedAudio.idl b/schemas/omgidl/foxglove/CompressedAudio.idl
index c16a510..0ca8c1c 100644
--- a/schemas/omgidl/foxglove/CompressedAudio.idl
+++ b/schemas/omgidl/foxglove/CompressedAudio.idl
@@ -10,8 +10,6 @@ struct CompressedAudio {
   Time timestamp;
 
   // Compressed audio frame data.
-  // 
-  // TK
   sequence<uint8> data;
 
   // Audio format.
@@ -23,6 +21,12 @@ struct CompressedAudio {
   // 
   //  Supported values: `key`, `delta`.
   string type;
+
+  // Number of audio samples per second.
+  uint32 sample_rate;
+
+  // Number of audio channels in the input.
+  uint32 number_of_channels;
 };
 
 };
diff --git a/schemas/proto/foxglove/CompressedAudio.proto b/schemas/proto/foxglove/CompressedAudio.proto
index 61c3f8b..4aa5f83 100644
--- a/schemas/proto/foxglove/CompressedAudio.proto
+++ b/schemas/proto/foxglove/CompressedAudio.proto
@@ -12,8 +12,6 @@ message CompressedAudio {
   google.protobuf.Timestamp timestamp = 1;
 
   // Compressed audio frame data.
-  // 
-  // TK
   bytes data = 2;
 
   // Audio format.
@@ -25,4 +23,10 @@ message CompressedAudio {
   // 
   //  Supported values: `key`, `delta`.
   string type = 4;
+
+  // Number of audio samples per second.
+  fixed32 sample_rate = 5;
+
+  // Number of audio channels in the input.
+  fixed32 number_of_channels = 6;
 }
diff --git a/schemas/ros1/CompressedAudio.msg b/schemas/ros1/CompressedAudio.msg
index f9cdfc0..3680dd2 100644
--- a/schemas/ros1/CompressedAudio.msg
+++ b/schemas/ros1/CompressedAudio.msg
@@ -7,8 +7,6 @@
 time timestamp
 
 # Compressed audio frame data.
-# 
-# TK
 uint8[] data
 
 # Audio format.
@@ -20,3 +18,9 @@ string format
 # 
 #  Supported values: `key`, `delta`.
 string type
+
+# Number of audio samples per second.
+uint32 sample_rate
+
+# Number of audio channels in the input.
+uint32 number_of_channels
diff --git a/schemas/ros2/CompressedAudio.msg b/schemas/ros2/CompressedAudio.msg
index 31dc397..a03030f 100644
--- a/schemas/ros2/CompressedAudio.msg
+++ b/schemas/ros2/CompressedAudio.msg
@@ -7,8 +7,6 @@
 builtin_interfaces/Time timestamp
 
 # Compressed audio frame data.
-# 
-# TK
 uint8[] data
 
 # Audio format.
@@ -20,3 +18,9 @@ string format
 # 
 #  Supported values: `key`, `delta`.
 string type
+
+# Number of audio samples per second.
+uint32 sample_rate
+
+# Number of audio channels in the input.
+uint32 number_of_channels
diff --git a/schemas/typescript/CompressedAudio.ts b/schemas/typescript/CompressedAudio.ts
index 4b29a2c..0d13260 100644
--- a/schemas/typescript/CompressedAudio.ts
+++ b/schemas/typescript/CompressedAudio.ts
@@ -8,11 +8,7 @@ export type CompressedAudio = {
   /** Timestamp of audio frame */
   timestamp: Time;
 
-  /**
-   * Compressed audio frame data.
-   * 
-   * TK
-   */
+  /** Compressed audio frame data. */
   data: Uint8Array;
 
   /**
@@ -28,4 +24,10 @@ export type CompressedAudio = {
    *  Supported values: `key`, `delta`.
    */
   type: string;
+
+  /** Number of audio samples per second. */
+  sample_rate: number;
+
+  /** Number of audio channels in the input. */
+  number_of_channels: number;
 };