ux: Fine-tune voice cutoff delay

150 was really too short, the assistant was triggered too many times. Let'w try with 250 and get feebacks.

README.md

@@ -498,7 +498,7 @@ Conversation options are represented as features. They can be configured from Ap
 | `recognition_retry_max` | The maximum number of retries for voice recognition. | `int` | 2 |
 | `recording_enabled` | Whether call recording is enabled. | `bool` | false |
 | `slow_llm_for_chat` | Whether to use the slow LLM for chat. | `bool` | false |
-| `vad_cutoff_timeout_ms` | The cutoff timeout for voice activity detection in secs. | `int` | 150 |
+| `vad_cutoff_timeout_ms` | The cutoff timeout for voice activity detection in secs. | `int` | 250 |
 | `vad_silence_timeout_ms` | The timeout for phone silence in secs. | `int` | 500 |
 | `vad_threshold` | The threshold for voice activity detection. | `float` | 0.5 |
 

app/helpers/features.py

@@ -72,7 +72,7 @@ async def vad_silence_timeout_ms(scheduler: Scheduler) -> int:
 
 async def vad_cutoff_timeout_ms(scheduler: Scheduler) -> int:
     return await _default(
-        default=150,
+        default=250,
         key="vad_cutoff_timeout_ms",
         scheduler=scheduler,
         type_res=int,

cicd/bicep/app.bicep

@@ -907,7 +907,7 @@ resource configValues 'Microsoft.AppConfiguration/configurationStores/keyValues@
     recognition_retry_max: 2
     recording_enabled: false
     slow_llm_for_chat: false
-    vad_cutoff_timeout_ms: 150
+    vad_cutoff_timeout_ms: 250
     vad_silence_timeout_ms: 500
     vad_threshold: '0.5'
   }): {