Tweak ffmpeg Opus encoding optoins for more reliable audio (#1299)

dgreif · Aug 20, 2023 · d6a5414 · d6a5414
1 parent b2c65e5
commit d6a5414
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Showing 4 changed files with 30 additions and 95 deletions.
diff --git a/.changeset/tame-onions-trade.md b/.changeset/tame-onions-trade.md
@@ -0,0 +1,5 @@
+---
+'homebridge-ring': patch
+---
+
+Improve 2-way audio quality in homebridge
diff --git a/package-lock.json b/package-lock.json
diff --git a/packages/homebridge-ring/camera-source.ts b/packages/homebridge-ring/camera-source.ts
@@ -273,7 +273,9 @@ class StreamingSessionWrapper {
               '-frame_duration',
               request.audio.packet_time,
               '-application',
-              'lowdelay',
+              'voip',
+              '-vbr',
+              'off',
             ]
           : [
               // AAC-eld specific
@@ -346,7 +348,19 @@ class StreamingSessionWrapper {
         outputArgs: [
           '-acodec',
           ...(isRingUsingOpus
-            ? ['libopus', '-ac', 2, '-ar', '48k']
+            ? [
+                'libopus',
+                '-ac',
+                1,
+                '-ar',
+                '24k',
+                '-vbr',
+                'off',
+                '-b:a',
+                '24k',
+                '-application',
+                'voip',
+              ]
             : ['pcm_mulaw', '-ac', 1, '-ar', '8k']),
           '-flags',
           '+global_header',

diff --git a/packages/homebridge-ring/package.json b/packages/homebridge-ring/package.json
@@ -14,7 +14,7 @@
     "@homebridge/camera-utils": "^2.2.0",
     "@homebridge/plugin-ui-utils": "^0.1.0",
     "ring-client-api": "12.0.0-beta.3",
-    "werift": "0.17.6"
+    "werift": "0.18.5"
   },
   "devDependencies": {
     "concurrently": "^8.2.0",