diff --git a/src/structures/MessageAttachment.js b/src/structures/MessageAttachment.js
index 3426a17ae..4be74c8f4 100644
--- a/src/structures/MessageAttachment.js
+++ b/src/structures/MessageAttachment.js
@@ -147,6 +147,28 @@ class MessageAttachment {
      * @type {boolean}
      */
     this.ephemeral = data.ephemeral ?? false;
+
+    if ('duration_secs' in data) {
+      /**
+       * The duration of this attachment in seconds
+       * <info>This will only be available if the attachment is an audio file.</info>
+       * @type {?number}
+       */
+      this.duration = data.duration_secs;
+    } else {
+      this.duration ??= null;
+    }
+
+    if ('waveform' in data) {
+      /**
+       * The base64 encoded byte array representing a sampled waveform
+       * <info>This will only be available if the attachment is an audio file.</info>
+       * @type {?string}
+       */
+      this.waveform = data.waveform;
+    } else {
+      this.waveform ??= null;
+    }
   }
 
   /**
diff --git a/src/util/Constants.js b/src/util/Constants.js
index 8d7d04dd8..5a8623166 100644
--- a/src/util/Constants.js
+++ b/src/util/Constants.js
@@ -1141,6 +1141,11 @@ exports.APIErrors = {
   INVALID_JSON: 50109,
   CANNOT_MIX_SUBSCRIPTION_AND_NON_SUBSCRIPTION_ROLES_FOR_EMOJI: 50144,
   CANNOT_CONVERT_PREMIUM_EMOJI_TO_NORMAL_EMOJI: 50145,
+  VOICE_MESSAGES_DO_NOT_SUPPORT_ADDITIONAL_CONTENT: 50159,
+  VOICE_MESSAGES_MUST_HAVE_A_SINGLE_AUDIO_ATTACHMENT: 50160,
+  VOICE_MESSAGES_MUST_HAVE_SUPPORTING_METADATA: 50161,
+  VOICE_MESSAGES_CANNOT_BE_EDITED: 50162,
+  YOU_CANNOT_SEND_VOICE_MESSAGES_IN_THIS_CHANNEL: 50173,
   TWO_FACTOR_REQUIRED: 60003,
   NO_USERS_WITH_DISCORDTAG_EXIST: 80004,
   REACTION_BLOCKED: 90001,
diff --git a/src/util/MessageFlags.js b/src/util/MessageFlags.js
index 2aef376b6..1759b368d 100644
--- a/src/util/MessageFlags.js
+++ b/src/util/MessageFlags.js
@@ -45,6 +45,7 @@ MessageFlags.FLAGS = {
   EPHEMERAL: 1 << 6,
   LOADING: 1 << 7,
   SUPPRESS_NOTIFICATIONS: 1 << 12,
+  IS_VOICE_MESSAGE: 1 << 13,
 };
 
 module.exports = MessageFlags;
diff --git a/src/util/Permissions.js b/src/util/Permissions.js
index 32f68314d..4ec12b6ef 100644
--- a/src/util/Permissions.js
+++ b/src/util/Permissions.js
@@ -160,6 +160,7 @@ Permissions.FLAGS = {
   MODERATE_MEMBERS: 1n << 40n,
   VIEW_CREATOR_MONETIZATION_ANALYTICS: 1n << 41n,
   USE_SOUNDBOARD: 1n << 42n,
+  SEND_VOICE_MESSAGES: 1n << 46n,
 };
 
 /**
diff --git a/typings/index.d.ts b/typings/index.d.ts
index cc7ca061e..9488d7544 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -1705,6 +1705,7 @@ export class MessageAttachment {
   public attachment: BufferResolvable | Stream;
   public contentType: string | null;
   public description: string | null;
+  public duration: number | null;
   public ephemeral: boolean;
   public height: number | null;
   public id: Snowflake;
@@ -1713,6 +1714,7 @@ export class MessageAttachment {
   public size: number;
   public readonly spoiler: boolean;
   public url: string;
+  public waveform: string | null;
   public width: number | null;
   public setDescription(description: string): this;
   public setFile(attachment: BufferResolvable | Stream, name?: string): this;
@@ -3933,6 +3935,11 @@ export interface APIErrors {
   INSUFFICIENT_BOOSTS: 50101;
   INVALID_JSON: 50109;
   CANNOT_MIX_SUBSCRIPTION_AND_NON_SUBSCRIPTION_ROLES_FOR_EMOJI: 50144;
+  VOICE_MESSAGES_DO_NOT_SUPPORT_ADDITIONAL_CONTENT: 50159;
+  VOICE_MESSAGES_MUST_HAVE_A_SINGLE_AUDIO_ATTACHMENT: 50160;
+  VOICE_MESSAGES_MUST_HAVE_SUPPORTING_METADATA: 50161;
+  VOICE_MESSAGES_CANNOT_BE_EDITED: 50162;
+  YOU_CANNOT_SEND_VOICE_MESSAGES_IN_THIS_CHANNEL: 50173;
   CANNOT_CONVERT_PREMIUM_EMOJI_TO_NORMAL_EMOJI: 50145;
   TWO_FACTOR_REQUIRED: 60003;
   NO_USERS_WITH_DISCORDTAG_EXIST: 80004;
@@ -5864,7 +5871,8 @@ export type MessageFlagsString =
   | 'HAS_THREAD'
   | 'EPHEMERAL'
   | 'LOADING'
-  | 'SUPPRESS_NOTIFICATIONS';
+  | 'SUPPRESS_NOTIFICATIONS'
+  | 'IS_VOICE_MESSAGE';
 
 export interface MessageInteraction {
   id: Snowflake;
@@ -6056,7 +6064,8 @@ export type PermissionString =
   | 'MODERATE_MEMBERS'
   | 'MANAGE_EVENTS'
   | 'VIEW_CREATOR_MONETIZATION_ANALYTICS'
-  | 'USE_SOUNDBOARD';
+  | 'USE_SOUNDBOARD'
+  | 'SEND_VOICE_MESSAGES';
 
 export type RecursiveArray<T> = ReadonlyArray<T | RecursiveArray<T>>;
 
diff --git a/typings/rawDataTypes.d.ts b/typings/rawDataTypes.d.ts
index f48c30dc5..72268b762 100644
--- a/typings/rawDataTypes.d.ts
+++ b/typings/rawDataTypes.d.ts
@@ -5,7 +5,6 @@ import {
   APIApplication,
   APIApplicationCommand,
   APIApplicationCommandInteraction,
-  APIAttachment,
   APIAuditLog,
   APIAuditLogEntry,
   APIBan,
@@ -169,7 +168,20 @@ export type RawInviteStageInstance = APIInviteStageInstance;
 export type RawMessageData = APIMessage;
 export type RawPartialMessageData = GatewayMessageUpdateDispatchData;
 
-export type RawMessageAttachmentData = APIAttachment;
+export interface RawMessageAttachmentData {
+	id: Snowflake;
+	filename: string;
+	description?: string;
+	content_type?: string;
+	size: number;
+	url: string;
+	proxy_url: string;
+	height?: number | null;
+	width?: number | null;
+	ephemeral?: boolean;
+	duration_secs?: number;
+	waveform?: string;
+}
 
 export type RawMessagePayloadData =
   | RESTPostAPIChannelMessageJSONBody