diff --git a/repub/settings.py b/repub/settings.py
index d39b635..252c974 100644
--- a/repub/settings.py
+++ b/repub/settings.py
@@ -102,79 +102,95 @@ MEDIA_ALLOW_REDIRECTS = True
 
 REPUBLISHER_AUDIO = [
     {
-        "name": "vbr7",
+        "name": "mp3_vbr7_voice",
         "format": "mp3",
-        "max_bitrate": 96000,
-        "mimetype": "audio/mp3",
+        "max_bitrate": 64000,
+        "mimetype": "audio/mpeg",
         "extension": "mp3",
         "ffmpeg_audio_params": {
             "acodec": "libmp3lame",
-            # https://trac.ffmpeg.org/wiki/Encode/MP3#VBREncoding
             "qscale:a": "7",
+            "ac": "1",
+            "ar": "48000",
         },
     },
     {
-        "name": "vbr3",
-        "format": "aac",
-        "max_bitrate": 96000,
-        "mimetype": "audio/aac",
-        "extension": "aac",
+        "name": "m4a_aac_vbr2_voice",
+        "format": "m4a",
+        "max_bitrate": 64000,
+        "mimetype": "audio/mp4",
+        "extension": "m4a",
         "ffmpeg_audio_params": {
             "acodec": "libfdk_aac",
-            # https://trac.ffmpeg.org/wiki/Encode/MP3#VBREncoding
-            "vbr": "3",
+            "vbr": "2",
+            "ac": "1",
+            "ar": "48000",
+        },
+    },
+    {
+        "name": "webm_opus_voice_48k",
+        "format": "webm",
+        "max_bitrate": 48000,
+        "mimetype": "audio/webm",
+        "extension": "webm",
+        "ffmpeg_audio_params": {
+            "acodec": "libopus",
+            "b:a": "48k",
+            "ac": "1",
+            "ar": "48000",
+            "application": "voip",
         },
     },
 ]
 REPUBLISHER_VIDEO = [
+    # broadly compatible
     {
-        "name": "720",
+        "name": "main",
         "container": "mp4",
         "vcodec": "h264",
-        "acodec": "mp3",
+        "acodec": "aac",
         "audio_max_bitrate": 96000,
         "ffmpeg_audio_params": {
-            "acodec": "libmp3lame",
-            # https://trac.ffmpeg.org/wiki/Encode/MP3#VBREncoding
-            "qscale:a": "7",
+            "acodec": "aac",
+            "b:a": "96k",
+            "ac": "2",
+            "ar": "48000",
+        },
+        "ffmpeg_video_params": {
+            "vcodec": "libx264",
+            "pix_fmt": "yuv420p",
+            "profile:v": "main",
+            "level": "4.0",
+            "preset": "medium",
+            "crf": "22",
+            "movflags": "+faststart",
         },
-        "ffmpeg_video_params": {"vcodec": "h264", "strict": "-2"},
         "max_height": 720,
         "mimetype": "video/mp4",
         "extension": "mp4",
     },
-    # {
-    #    "passes": [
-    #        {
-    #            "c:v": "libvpx-vp9",
-    #            "b:v": "0",
-    #            "crf": "30",
-    #            "pass": "1",
-    #            "deadline": "good",
-    #            "row-mt": "1",
-    #            "f": "null",
-    #        },
-    #        {
-    #            "c:v": "libvpx-vp9",
-    #            "b:v": "0",
-    #            "crf": "30",
-    #            "pass": "2",
-    #            "deadline": "good",
-    #            "row-mt": "1",
-    #            "c:a": "libopus",
-    #            "b:a": "96k",
-    #            "ac": "2",
-    #        },
-    #    ],
-    #    "name": "720",
-    #    "container": "webm",
-    #    "vcodec": "libvpx-vp9",
-    #    "acodec": "opus",
-    #    "audio_max_bitrate": 96000,
-    #    "max_height": 720,
-    #    "mimetype": "video/webm",
-    #    "extension": "webm",
-    # },
+    # linux fallback without patent encumberance
+    {
+        "name": "fallback",
+        "container": "webm",
+        "vcodec": "vp9",
+        "acodec": "opus",
+        "audio_max_bitrate": 96000,
+        "ffmpeg_audio_params": {
+            "acodec": "libopus",
+            "b:a": "96k",
+            "ac": "2",
+            "ar": "48000",
+        },
+        "ffmpeg_video_params": {
+            "vcodec": "libvpx-vp9",
+            "crf": "33",
+            "b:v": "0",
+        },
+        "max_height": 720,
+        "mimetype": "video/webm",
+        "extension": "webm",
+    },
 ]
 
 REPUBLISHER_FFMPEG_ENCODERS = ["libmp3lame", "libfdk_aac", "libvpx-vp9", "libopus"]