diff --git a/71.md b/71.md
index 0124edd2..904efaa2 100644
--- a/71.md
+++ b/71.md
@@ -38,12 +38,16 @@ The `.content` of these events is a summary or description on the video content.
 
 The primary source of video information is the `imeta` tags which is defined in [NIP-92](92.md)
 
-Each `imeta` tag can be used to specify a variant of the video by the `dim` & `m` properties.
+Each `imeta` tag can be used to specify a variant of the video by the `dim` & `m` properties, as well as multiple audio tracks (languages).
+
+Clients should check if audio tracks are available and prefer them over in-video audio 
+to allow smooth resolution switching without interrupting audio. The `ov` (original version) flags the original language track.
 
 This NIP defines the following additional `imeta` properties aside from those listed in [NIP-92](92.md) & [NIP-94](94.md):
 
 * `duration` (recommended) the duration of the video/audio in seconds (floating point number)
 * `bitrate` (recommended) the average bitrate of the video/audio in bits/sec
+* `waveform` (optional, audio only) amplitude values over time, space separated full integers, less than 100 values should be enough to render a nice visual
 
 Example:
 ```json
@@ -86,6 +90,18 @@ Example:
     "service nip96",
     "duration 29.21"
   ],
+  ["imeta",
+    "url https://myaudio.com/audio/en/12345.mp3",
+    "x b2e0a7a82ac9f3f3a71f1d9a78c381d5be9d1cf19dce258765c17c8a76287c93",
+    "m audio/mp3",
+    "waveform 0 7 35 8 100 100 49 8 4 16 8 10 7 2 20 10 100 100 100 100 100 100 15 100 100 100 25 60 5 4 3 1 0 100 100 15 100 29 88 0 33 11 39 100 100 19 4 100 42 35 5 0 1 5 0 0 11 38 100 94 17 11 44 58 5 100 100 100 55 14 72 100 100 57 6 1 14 2 16 100 100 40 16 100 100 6 32 14 13 41 36 16 14 6 3 0 1 2 1 6 0",
+    "l en ISO-639-1 ov",
+    "fallback https://myotherserver.com/audio/en/12345.mp3",
+    "fallback https://andanotherserver.com/audio/en/12345.mp3",
+    "service nip96",
+    "bitrate  320000",
+    "duration 29.24"
+  ],
 ]
 ```
 
@@ -180,6 +196,13 @@ Additionally `service nip96` may be included to allow clients to search the auth
       "image https://example.com/thumb.jpg",
       "x 3093509d1e0bc604ff60cb9286f4cd7c781553bc8991937befaacfdc28ec5cdc"
     ],
+    // audio data
+    ["imeta",
+      "url https://example.com/audio.mp3",
+      "x b2e0a7a82ac9f3f3a71f1d9a78c381d5be9d1cf19dce258765c17c8a76287c93",
+      "m audio/mp3",
+      "l en ISO-639-1 ov"
+    ],
 
     ["duration", <duration in seconds>],
     ["content-warning", "<reason>"],