diff --git a/android/src/main/java/com/rnwhisper/WhisperContext.java b/android/src/main/java/com/rnwhisper/WhisperContext.java
index c6f30d5..0ec7549 100644
--- a/android/src/main/java/com/rnwhisper/WhisperContext.java
+++ b/android/src/main/java/com/rnwhisper/WhisperContext.java
@@ -83,6 +83,7 @@ private boolean vad(ReadableMap options, short[] shortBuffer, int nSamples, int
     boolean isSpeech = true;
     if (!isTranscribing && options.hasKey("useVad") && options.getBoolean("useVad")) {
       int vadSec = options.hasKey("vadMs") ? options.getInt("vadMs") / 1000 : 2;
+      if (vadSec < 2) vadSec = 2;
       int sampleSize = vadSec * SAMPLE_RATE;
       if (nSamples + n > sampleSize) {
         int start = nSamples + n - sampleSize;
diff --git a/docs/API/README.md b/docs/API/README.md
index 846844c..ed45d74 100644
--- a/docs/API/README.md
+++ b/docs/API/README.md
@@ -58,7 +58,7 @@ whisper.rn
 
 #### Defined in
 
-[index.ts:76](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L76)
+[index.ts:76](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L76)
 
 ___
 
@@ -79,7 +79,7 @@ ___
 
 #### Defined in
 
-[index.ts:428](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L428)
+[index.ts:428](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L428)
 
 ___
 
@@ -89,7 +89,7 @@ ___
 
 #### Defined in
 
-[index.ts:59](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L59)
+[index.ts:59](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L59)
 
 ___
 
@@ -107,7 +107,7 @@ ___
 
 #### Defined in
 
-[index.ts:52](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L52)
+[index.ts:52](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L52)
 
 ___
 
@@ -126,7 +126,7 @@ ___
 
 #### Defined in
 
-[index.ts:45](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L45)
+[index.ts:45](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L45)
 
 ___
 
@@ -156,7 +156,7 @@ ___
 
 #### Defined in
 
-[NativeRNWhisper.ts:5](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/NativeRNWhisper.ts#L5)
+[NativeRNWhisper.ts:5](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/NativeRNWhisper.ts#L5)
 
 ___
 
@@ -174,7 +174,7 @@ ___
 
 #### Defined in
 
-[index.ts:70](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L70)
+[index.ts:70](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L70)
 
 ___
 
@@ -199,7 +199,7 @@ ___
 
 #### Defined in
 
-[index.ts:133](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L133)
+[index.ts:133](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L133)
 
 ___
 
@@ -217,7 +217,7 @@ ___
 
 #### Defined in
 
-[index.ts:166](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L166)
+[index.ts:166](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L166)
 
 ___
 
@@ -241,7 +241,7 @@ ___
 
 #### Defined in
 
-[index.ts:153](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L153)
+[index.ts:153](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L153)
 
 ___
 
@@ -251,7 +251,7 @@ ___
 
 #### Defined in
 
-[index.ts:84](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L84)
+[index.ts:84](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L84)
 
 ___
 
@@ -269,7 +269,7 @@ ___
 
 #### Defined in
 
-[NativeRNWhisper.ts:37](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/NativeRNWhisper.ts#L37)
+[NativeRNWhisper.ts:37](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/NativeRNWhisper.ts#L37)
 
 ## Variables
 
@@ -294,7 +294,7 @@ AudioSession Utility, iOS only.
 
 #### Defined in
 
-[AudioSessionIos.ts:50](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L50)
+[AudioSessionIos.ts:50](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L50)
 
 ___
 
@@ -306,7 +306,7 @@ Is allow fallback to CPU if load CoreML model failed
 
 #### Defined in
 
-[index.ts:526](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L526)
+[index.ts:526](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L526)
 
 ___
 
@@ -318,7 +318,7 @@ Is use CoreML models on iOS
 
 #### Defined in
 
-[index.ts:523](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L523)
+[index.ts:523](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L523)
 
 ___
 
@@ -330,7 +330,7 @@ Current version of whisper.cpp
 
 #### Defined in
 
-[index.ts:518](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L518)
+[index.ts:518](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L518)
 
 ## Functions
 
@@ -350,7 +350,7 @@ Current version of whisper.cpp
 
 #### Defined in
 
-[index.ts:452](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L452)
+[index.ts:452](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L452)
 
 ___
 
@@ -364,4 +364,4 @@ ___
 
 #### Defined in
 
-[index.ts:513](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L513)
+[index.ts:513](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L513)
diff --git a/docs/API/classes/WhisperContext.md b/docs/API/classes/WhisperContext.md
index 72206e4..315003c 100644
--- a/docs/API/classes/WhisperContext.md
+++ b/docs/API/classes/WhisperContext.md
@@ -32,7 +32,7 @@
 
 #### Defined in
 
-[index.ts:186](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L186)
+[index.ts:186](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L186)
 
 ## Properties
 
@@ -42,7 +42,7 @@
 
 #### Defined in
 
-[index.ts:184](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L184)
+[index.ts:184](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L184)
 
 ## Methods
 
@@ -56,7 +56,7 @@
 
 #### Defined in
 
-[index.ts:423](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L423)
+[index.ts:423](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L423)
 
 ___
 
@@ -84,7 +84,7 @@ Transcribe audio file
 
 #### Defined in
 
-[index.ts:191](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L191)
+[index.ts:191](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L191)
 
 ___
 
@@ -106,4 +106,4 @@ Transcribe the microphone audio stream, the microphone user permission is requir
 
 #### Defined in
 
-[index.ts:287](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/index.ts#L287)
+[index.ts:287](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/index.ts#L287)
diff --git a/docs/API/enums/AudioSessionCategoryIos.md b/docs/API/enums/AudioSessionCategoryIos.md
index b92e21a..fb620f0 100644
--- a/docs/API/enums/AudioSessionCategoryIos.md
+++ b/docs/API/enums/AudioSessionCategoryIos.md
@@ -25,7 +25,7 @@ https://developer.apple.com/documentation/avfaudio/avaudiosessioncategory?langua
 
 #### Defined in
 
-[AudioSessionIos.ts:8](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L8)
+[AudioSessionIos.ts:8](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L8)
 
 ___
 
@@ -35,7 +35,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:13](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L13)
+[AudioSessionIos.ts:13](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L13)
 
 ___
 
@@ -45,7 +45,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:12](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L12)
+[AudioSessionIos.ts:12](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L12)
 
 ___
 
@@ -55,7 +55,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:10](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L10)
+[AudioSessionIos.ts:10](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L10)
 
 ___
 
@@ -65,7 +65,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:11](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L11)
+[AudioSessionIos.ts:11](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L11)
 
 ___
 
@@ -75,4 +75,4 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:9](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L9)
+[AudioSessionIos.ts:9](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L9)
diff --git a/docs/API/enums/AudioSessionCategoryOptionIos.md b/docs/API/enums/AudioSessionCategoryOptionIos.md
index 4406b79..a46772d 100644
--- a/docs/API/enums/AudioSessionCategoryOptionIos.md
+++ b/docs/API/enums/AudioSessionCategoryOptionIos.md
@@ -26,7 +26,7 @@ https://developer.apple.com/documentation/avfaudio/avaudiosessioncategoryoptions
 
 #### Defined in
 
-[AudioSessionIos.ts:25](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L25)
+[AudioSessionIos.ts:25](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L25)
 
 ___
 
@@ -36,7 +36,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:23](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L23)
+[AudioSessionIos.ts:23](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L23)
 
 ___
 
@@ -46,7 +46,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:24](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L24)
+[AudioSessionIos.ts:24](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L24)
 
 ___
 
@@ -56,7 +56,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:26](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L26)
+[AudioSessionIos.ts:26](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L26)
 
 ___
 
@@ -66,7 +66,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:21](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L21)
+[AudioSessionIos.ts:21](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L21)
 
 ___
 
@@ -76,7 +76,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:22](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L22)
+[AudioSessionIos.ts:22](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L22)
 
 ___
 
@@ -86,4 +86,4 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:20](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L20)
+[AudioSessionIos.ts:20](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L20)
diff --git a/docs/API/enums/AudioSessionModeIos.md b/docs/API/enums/AudioSessionModeIos.md
index 0127545..74ebb30 100644
--- a/docs/API/enums/AudioSessionModeIos.md
+++ b/docs/API/enums/AudioSessionModeIos.md
@@ -27,7 +27,7 @@ https://developer.apple.com/documentation/avfaudio/avaudiosessionmode?language=o
 
 #### Defined in
 
-[AudioSessionIos.ts:33](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L33)
+[AudioSessionIos.ts:33](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L33)
 
 ___
 
@@ -37,7 +37,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:36](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L36)
+[AudioSessionIos.ts:36](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L36)
 
 ___
 
@@ -47,7 +47,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:38](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L38)
+[AudioSessionIos.ts:38](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L38)
 
 ___
 
@@ -57,7 +57,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:39](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L39)
+[AudioSessionIos.ts:39](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L39)
 
 ___
 
@@ -67,7 +67,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:40](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L40)
+[AudioSessionIos.ts:40](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L40)
 
 ___
 
@@ -77,7 +77,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:35](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L35)
+[AudioSessionIos.ts:35](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L35)
 
 ___
 
@@ -87,7 +87,7 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:37](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L37)
+[AudioSessionIos.ts:37](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L37)
 
 ___
 
@@ -97,4 +97,4 @@ ___
 
 #### Defined in
 
-[AudioSessionIos.ts:34](https://github.com/mybigday/whisper.rn/blob/66e9a0c/src/AudioSessionIos.ts#L34)
+[AudioSessionIos.ts:34](https://github.com/mybigday/whisper.rn/blob/f3ce9a6/src/AudioSessionIos.ts#L34)
diff --git a/ios/RNWhisperContext.mm b/ios/RNWhisperContext.mm
index f015209..e195790 100644
--- a/ios/RNWhisperContext.mm
+++ b/ios/RNWhisperContext.mm
@@ -57,6 +57,8 @@ - (void)prepareRealtime:(NSDictionary *)options {
 
     self->recordState.useVad = options[@"useVad"] != nil ? [options[@"useVad"] boolValue] : false;
     self->recordState.vadSec = options[@"vadMs"] != nil ? [options[@"vadMs"] intValue] / 1000 : 2;
+    if (self->recordState.vadSec < 2) self->recordState.vadSec = 2;
+
     self->recordState.vadThold = options[@"vadThold"] != nil ? [options[@"vadThold"] floatValue] : 0.6f;
     self->recordState.vadFreqThold = options[@"vadFreqThold"] != nil ? [options[@"vadFreqThold"] floatValue] : 100.0f;
 
diff --git a/src/index.ts b/src/index.ts
index c9fe796..968626e 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -106,7 +106,7 @@ export type TranscribeRealtimeOptions = TranscribeOptions & {
    */
   useVad?: boolean
   /**
-   * The length of the collected audio is used for VAD. (ms) (Default: 2000)
+   * The length of the collected audio is used for VAD, cannot be less than 2000ms. (ms) (Default: 2000)
    */
   vadMs?: number
   /**