diff --git a/.github/scripts/test-nodejs-npm.sh b/.github/scripts/test-nodejs-npm.sh
index 85b83cd6d..c41a0de65 100755
--- a/.github/scripts/test-nodejs-npm.sh
+++ b/.github/scripts/test-nodejs-npm.sh
@@ -9,13 +9,26 @@ git status
 ls -lh
 ls -lh node_modules
 
+echo '-----vad+whisper----------'
+
+curl -LS -O https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-whisper-tiny.en.tar.bz2
+tar xvf sherpa-onnx-whisper-tiny.en.tar.bz2
+rm sherpa-onnx-whisper-tiny.en.tar.bz2
+
+curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/Obama.wav
+curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/silero_vad.onnx
+node ./test-vad-with-non-streaming-asr-whisper.js
+rm Obama.wav
+rm silero_vad.onnx
+rm -rf sherpa-onnx-whisper-tiny.en
+
 echo "----------keyword spotting----------"
 
 curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/kws-models/sherpa-onnx-kws-zipformer-wenetspeech-3.3M-2024-01-01.tar.bz2
 tar xvf sherpa-onnx-kws-zipformer-wenetspeech-3.3M-2024-01-01.tar.bz2
 rm sherpa-onnx-kws-zipformer-wenetspeech-3.3M-2024-01-01.tar.bz2
 
-node ./test-keyword_spotter-transducer.js
+node ./test-keyword-spotter-transducer.js
 rm -rf sherpa-onnx-kws-zipformer-wenetspeech-3.3M-2024-01-01
 
 # offline asr
diff --git a/.github/workflows/npm.yaml b/.github/workflows/npm.yaml
index 005c906bf..9fd9f17a3 100644
--- a/.github/workflows/npm.yaml
+++ b/.github/workflows/npm.yaml
@@ -1,6 +1,9 @@
 name: npm
 
 on:
+  push:
+    branches:
+      - npm
   workflow_dispatch:
 
 concurrency:
@@ -89,7 +92,6 @@ jobs:
           path: ./*.tar.bz2
 
       - name: Build nodejs package
-        if: false
         shell: bash
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
diff --git a/.github/workflows/test-nodejs.yaml b/.github/workflows/test-nodejs.yaml
index 737e1df0d..25f3c38fd 100644
--- a/.github/workflows/test-nodejs.yaml
+++ b/.github/workflows/test-nodejs.yaml
@@ -112,7 +112,7 @@ jobs:
           node --version
           npm --version
           export d=scripts/nodejs
-          cat index.js
+          cat $d/index.js
 
           pushd $d
           npm install
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8977bae89..f78268086 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,14 @@
+## 1.10.23
+
+* flutter: add lang, emotion, event to OfflineRecognizerResult (#1268)
+* Use a separate thread to initialize models for lazarus examples. (#1270)
+* Object pascal examples for recording and playing audio with portaudio. (#1271)
+* Text to speech API for Object Pascal. (#1273)
+* update kotlin api for better release native object and add user-friendly apis. (#1275)
+* Update wave-reader.cc to support 8/16/32-bit waves (#1278)
+* Add WebAssembly for VAD (#1281)
+* WebAssembly example for VAD + Non-streaming ASR (#1284)
+
 ## 1.10.22
 
 * Add Pascal API for reading wave files (#1243)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f5283d43a..4b94e2351 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,7 +11,7 @@ project(sherpa-onnx)
 # ./nodejs-addon-examples
 # ./dart-api-examples/
 # ./CHANGELOG.md
-set(SHERPA_ONNX_VERSION "1.10.22")
+set(SHERPA_ONNX_VERSION "1.10.23")
 
 # Disable warning about
 #
diff --git a/dart-api-examples/add-punctuations/pubspec.yaml b/dart-api-examples/add-punctuations/pubspec.yaml
index 5efb28b42..91fde0353 100644
--- a/dart-api-examples/add-punctuations/pubspec.yaml
+++ b/dart-api-examples/add-punctuations/pubspec.yaml
@@ -9,7 +9,7 @@ environment:
   sdk: ^3.4.0
 
 dependencies:
-  sherpa_onnx: ^1.10.22
+  sherpa_onnx: ^1.10.23
   path: ^1.9.0
   args: ^2.5.0
 
diff --git a/dart-api-examples/audio-tagging/pubspec.yaml b/dart-api-examples/audio-tagging/pubspec.yaml
index de9c515c1..69235c159 100644
--- a/dart-api-examples/audio-tagging/pubspec.yaml
+++ b/dart-api-examples/audio-tagging/pubspec.yaml
@@ -9,7 +9,7 @@ environment:
   sdk: ^3.4.0
 
 dependencies:
-  sherpa_onnx: ^1.10.22
+  sherpa_onnx: ^1.10.23
   path: ^1.9.0
   args: ^2.5.0
 
diff --git a/dart-api-examples/keyword-spotter/pubspec.yaml b/dart-api-examples/keyword-spotter/pubspec.yaml
index 93cd09173..7b78341c7 100644
--- a/dart-api-examples/keyword-spotter/pubspec.yaml
+++ b/dart-api-examples/keyword-spotter/pubspec.yaml
@@ -9,7 +9,7 @@ environment:
   sdk: ^3.4.0
 
 dependencies:
-  sherpa_onnx: ^1.10.22
+  sherpa_onnx: ^1.10.23
   # sherpa_onnx:
   #   path: ../../flutter/sherpa_onnx
   path: ^1.9.0
diff --git a/dart-api-examples/non-streaming-asr/pubspec.yaml b/dart-api-examples/non-streaming-asr/pubspec.yaml
index 4ecf29778..82c359d24 100644
--- a/dart-api-examples/non-streaming-asr/pubspec.yaml
+++ b/dart-api-examples/non-streaming-asr/pubspec.yaml
@@ -10,7 +10,7 @@ environment:
 
 # Add regular dependencies here.
 dependencies:
-  sherpa_onnx: ^1.10.22
+  sherpa_onnx: ^1.10.23
   path: ^1.9.0
   args: ^2.5.0
 
diff --git a/dart-api-examples/speaker-identification/pubspec.yaml b/dart-api-examples/speaker-identification/pubspec.yaml
index 2e3c4b7ef..bd3e3e5be 100644
--- a/dart-api-examples/speaker-identification/pubspec.yaml
+++ b/dart-api-examples/speaker-identification/pubspec.yaml
@@ -9,7 +9,7 @@ environment:
   sdk: ^3.4.0
 
 dependencies:
-  sherpa_onnx: ^1.10.22
+  sherpa_onnx: ^1.10.23
   path: ^1.9.0
   args: ^2.5.0
 
diff --git a/dart-api-examples/streaming-asr/pubspec.yaml b/dart-api-examples/streaming-asr/pubspec.yaml
index 7e0856290..b5c289eb5 100644
--- a/dart-api-examples/streaming-asr/pubspec.yaml
+++ b/dart-api-examples/streaming-asr/pubspec.yaml
@@ -11,7 +11,7 @@ environment:
 
 # Add regular dependencies here.
 dependencies:
-  sherpa_onnx: ^1.10.22
+  sherpa_onnx: ^1.10.23
   path: ^1.9.0
   args: ^2.5.0
 
diff --git a/dart-api-examples/tts/pubspec.yaml b/dart-api-examples/tts/pubspec.yaml
index da6cebafe..89c648cfd 100644
--- a/dart-api-examples/tts/pubspec.yaml
+++ b/dart-api-examples/tts/pubspec.yaml
@@ -8,7 +8,7 @@ environment:
 
 # Add regular dependencies here.
 dependencies:
-  sherpa_onnx: ^1.10.22
+  sherpa_onnx: ^1.10.23
   path: ^1.9.0
   args: ^2.5.0
 
diff --git a/dart-api-examples/vad-with-non-streaming-asr/pubspec.yaml b/dart-api-examples/vad-with-non-streaming-asr/pubspec.yaml
index 4f3e37143..a08f811e0 100644
--- a/dart-api-examples/vad-with-non-streaming-asr/pubspec.yaml
+++ b/dart-api-examples/vad-with-non-streaming-asr/pubspec.yaml
@@ -10,7 +10,7 @@ environment:
   sdk: ^3.4.0
 
 dependencies:
-  sherpa_onnx: ^1.10.22
+  sherpa_onnx: ^1.10.23
   path: ^1.9.0
   args: ^2.5.0
 
diff --git a/dart-api-examples/vad/pubspec.yaml b/dart-api-examples/vad/pubspec.yaml
index 9cc6186e2..c670af7da 100644
--- a/dart-api-examples/vad/pubspec.yaml
+++ b/dart-api-examples/vad/pubspec.yaml
@@ -9,7 +9,7 @@ environment:
   sdk: ^3.4.0
 
 dependencies:
-  sherpa_onnx: ^1.10.22
+  sherpa_onnx: ^1.10.23
   path: ^1.9.0
   args: ^2.5.0
 
diff --git a/flutter-examples/streaming_asr/pubspec.yaml b/flutter-examples/streaming_asr/pubspec.yaml
index f3d67be19..bafe4068f 100644
--- a/flutter-examples/streaming_asr/pubspec.yaml
+++ b/flutter-examples/streaming_asr/pubspec.yaml
@@ -5,7 +5,7 @@ description: >
 
 publish_to: 'none'
 
-version: 1.10.22
+version: 1.10.23
 
 topics:
   - speech-recognition
@@ -30,7 +30,7 @@ dependencies:
   record: ^5.1.0
   url_launcher: ^6.2.6
 
-  sherpa_onnx: ^1.10.22
+  sherpa_onnx: ^1.10.23
   # sherpa_onnx:
     # path: ../../flutter/sherpa_onnx
 
diff --git a/flutter-examples/tts/pubspec.yaml b/flutter-examples/tts/pubspec.yaml
index 745f8faf4..f9eb64da6 100644
--- a/flutter-examples/tts/pubspec.yaml
+++ b/flutter-examples/tts/pubspec.yaml
@@ -5,7 +5,7 @@ description: >
 
 publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 
-version: 1.10.22
+version: 1.10.23
 
 environment:
   sdk: '>=3.4.0 <4.0.0'
@@ -17,7 +17,7 @@ dependencies:
   cupertino_icons: ^1.0.6
   path_provider: ^2.1.3
   path: ^1.9.0
-  sherpa_onnx: ^1.10.22
+  sherpa_onnx: ^1.10.23
   url_launcher: ^6.2.6
   audioplayers: ^5.0.0
 
diff --git a/flutter/sherpa_onnx/pubspec.yaml b/flutter/sherpa_onnx/pubspec.yaml
index 22765831d..106607999 100644
--- a/flutter/sherpa_onnx/pubspec.yaml
+++ b/flutter/sherpa_onnx/pubspec.yaml
@@ -17,7 +17,7 @@ topics:
   - voice-activity-detection
 
 # remember to change the version in ../sherpa_onnx_macos/macos/sherpa_onnx_macos.podspec
-version: 1.10.22
+version: 1.10.23
 
 homepage: https://github.com/k2-fsa/sherpa-onnx
 
@@ -30,23 +30,23 @@ dependencies:
   flutter:
     sdk: flutter
 
-  sherpa_onnx_android: ^1.10.22
+  sherpa_onnx_android: ^1.10.23
   # sherpa_onnx_android:
   #   path: ../sherpa_onnx_android
 
-  sherpa_onnx_macos: ^1.10.22
+  sherpa_onnx_macos: ^1.10.23
   # sherpa_onnx_macos:
   #   path: ../sherpa_onnx_macos
 
-  sherpa_onnx_linux: ^1.10.22
+  sherpa_onnx_linux: ^1.10.23
   # sherpa_onnx_linux:
   #   path: ../sherpa_onnx_linux
     #
-  sherpa_onnx_windows: ^1.10.22
+  sherpa_onnx_windows: ^1.10.23
   # sherpa_onnx_windows:
   #   path: ../sherpa_onnx_windows
 
-  sherpa_onnx_ios: ^1.10.22
+  sherpa_onnx_ios: ^1.10.23
   # sherpa_onnx_ios:
   #   path: ../sherpa_onnx_ios
 
diff --git a/flutter/sherpa_onnx_ios/ios/sherpa_onnx_ios.podspec b/flutter/sherpa_onnx_ios/ios/sherpa_onnx_ios.podspec
index c3e261387..bc91bc803 100644
--- a/flutter/sherpa_onnx_ios/ios/sherpa_onnx_ios.podspec
+++ b/flutter/sherpa_onnx_ios/ios/sherpa_onnx_ios.podspec
@@ -7,7 +7,7 @@
 # https://groups.google.com/g/dart-ffi/c/nUATMBy7r0c
 Pod::Spec.new do |s|
   s.name             = 'sherpa_onnx_ios'
-  s.version          = '1.10.22'
+  s.version          = '1.10.23'
   s.summary          = 'A new Flutter FFI plugin project.'
   s.description      = <<-DESC
 A new Flutter FFI plugin project.
diff --git a/flutter/sherpa_onnx_macos/macos/sherpa_onnx_macos.podspec b/flutter/sherpa_onnx_macos/macos/sherpa_onnx_macos.podspec
index 956b5c91b..cfbabb144 100644
--- a/flutter/sherpa_onnx_macos/macos/sherpa_onnx_macos.podspec
+++ b/flutter/sherpa_onnx_macos/macos/sherpa_onnx_macos.podspec
@@ -4,7 +4,7 @@
 #
 Pod::Spec.new do |s|
   s.name             = 'sherpa_onnx_macos'
-  s.version          = '1.10.22'
+  s.version          = '1.10.23'
   s.summary          = 'sherpa-onnx Flutter FFI plugin project.'
   s.description      = <<-DESC
 sherpa-onnx Flutter FFI plugin project.
diff --git a/new-release.sh b/new-release.sh
new file mode 100755
index 000000000..056107fd6
--- /dev/null
+++ b/new-release.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+find flutter -name *.yaml -type f -exec sed -i.bak 's/1\.10\.22/1\.10\.23/g' {} \;
+find dart-api-examples -name *.yaml -type f -exec sed -i.bak 's/1\.10\.22/1\.10\.23/g' {} \;
+find flutter-examples -name *.yaml -type f -exec sed -i.bak 's/1\.10\.22/1\.10\.23/g' {} \;
+find flutter -name *.podspec -type f -exec sed -i.bak 's/1\.10\.22/1\.10\.23/g' {} \;
+find nodejs-addon-examples -name package.json -type f -exec sed -i.bak 's/1\.10\.22/1\.10\.23/g' {} \;
diff --git a/nodejs-addon-examples/package.json b/nodejs-addon-examples/package.json
index 744d08ea0..d80d25108 100644
--- a/nodejs-addon-examples/package.json
+++ b/nodejs-addon-examples/package.json
@@ -1,5 +1,5 @@
 {
   "dependencies": {
-    "sherpa-onnx-node": "^1.10.22"
+    "sherpa-onnx-node": "^1.10.23"
   }
 }
diff --git a/nodejs-addon-examples/test_vad_with_non_streaming_asr_whisper.js b/nodejs-addon-examples/test_vad_with_non_streaming_asr_whisper.js
index 20e17db78..6f3783e7c 100644
--- a/nodejs-addon-examples/test_vad_with_non_streaming_asr_whisper.js
+++ b/nodejs-addon-examples/test_vad_with_non_streaming_asr_whisper.js
@@ -120,8 +120,8 @@ console.log('Done')
 const elapsed_seconds = (stop - start) / 1000;
 const duration = wave.samples.length / wave.sampleRate;
 const real_time_factor = elapsed_seconds / duration;
-console.log('Wave duration', duration.toFixed(3), 'secodns')
-console.log('Elapsed', elapsed_seconds.toFixed(3), 'secodns')
+console.log('Wave duration', duration.toFixed(3), 'seconds')
+console.log('Elapsed', elapsed_seconds.toFixed(3), 'seconds')
 console.log(
     `RTF = ${elapsed_seconds.toFixed(3)}/${duration.toFixed(3)} =`,
     real_time_factor.toFixed(3))
diff --git a/nodejs-examples/test-vad-with-non-streaming-asr-whisper.js b/nodejs-examples/test-vad-with-non-streaming-asr-whisper.js
new file mode 100644
index 000000000..e84c3ab11
--- /dev/null
+++ b/nodejs-examples/test-vad-with-non-streaming-asr-whisper.js
@@ -0,0 +1,124 @@
+// Copyright (c)  2023-2024  Xiaomi Corporation (authors: Fangjun Kuang)
+
+const sherpa_onnx = require('sherpa-onnx');
+
+function createRecognizer() {
+  // Please download test files from
+  // https://github.com/k2-fsa/sherpa-onnx/releases/tag/asr-models
+  const config = {
+    'modelConfig': {
+      'whisper': {
+        'encoder': './sherpa-onnx-whisper-tiny.en/tiny.en-encoder.int8.onnx',
+        'decoder': './sherpa-onnx-whisper-tiny.en/tiny.en-decoder.int8.onnx',
+        'tailPaddings': 2000,
+      },
+      'tokens': './sherpa-onnx-whisper-tiny.en/tiny.en-tokens.txt',
+      'debug': 0,
+    }
+  };
+
+  return sherpa_onnx.createOfflineRecognizer(config);
+}
+
+function createVad() {
+  // please download silero_vad.onnx from
+  // https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/silero_vad.onnx
+  const config = {
+    sileroVad: {
+      model: './silero_vad.onnx',
+      threshold: 0.5,
+      minSpeechDuration: 0.25,
+      minSilenceDuration: 0.5,
+      windowSize: 512,
+    },
+    sampleRate: 16000,
+    debug: true,
+    numThreads: 1,
+    bufferSizeInSeconds: 60,
+  };
+
+  return sherpa_onnx.createVad(config);
+}
+
+const recognizer = createRecognizer();
+const vad = createVad();
+
+// please download ./Obama.wav from
+// https://github.com/k2-fsa/sherpa-onnx/releases/tag/asr-models
+const waveFilename = './Obama.wav';
+const wave = sherpa_onnx.readWave(waveFilename);
+
+if (wave.sampleRate != recognizer.config.featConfig.sampleRate) {
+  throw new Error(
+      'Expected sample rate: ${recognizer.config.featConfig.sampleRate}. Given: ${wave.sampleRate}');
+}
+
+console.log('Started')
+let start = Date.now();
+
+const windowSize = vad.config.sileroVad.windowSize;
+for (let i = 0; i < wave.samples.length; i += windowSize) {
+  const thisWindow = wave.samples.subarray(i, i + windowSize);
+  vad.acceptWaveform(thisWindow);
+
+  while (!vad.isEmpty()) {
+    const segment = vad.front();
+    vad.pop();
+
+    let start_time = segment.start / wave.sampleRate;
+    let end_time = start_time + segment.samples.length / wave.sampleRate;
+
+    start_time = start_time.toFixed(2);
+    end_time = end_time.toFixed(2);
+
+    const stream = recognizer.createStream();
+    stream.acceptWaveform(wave.sampleRate, segment.samples);
+
+    recognizer.decode(stream);
+    const r = recognizer.getResult(stream);
+    if (r.text.length > 0) {
+      const text = r.text.toLowerCase().trim();
+      console.log(`${start_time} -- ${end_time}: ${text}`);
+    }
+
+    stream.free();
+  }
+}
+
+vad.flush();
+
+while (!vad.isEmpty()) {
+  const segment = vad.front();
+  vad.pop();
+
+  let start_time = segment.start / wave.sampleRate;
+  let end_time = start_time + segment.samples.length / wave.sampleRate;
+
+  start_time = start_time.toFixed(2);
+  end_time = end_time.toFixed(2);
+
+  const stream = recognizer.createStream();
+  stream.acceptWaveform(wave.sampleRate, segment.samples);
+
+  recognizer.decode(stream);
+  const r = recognizer.getResult(stream);
+  if (r.text.length > 0) {
+    const text = r.text.toLowerCase().trim();
+    console.log(`${start_time} -- ${end_time}: ${text}`);
+  }
+}
+
+let stop = Date.now();
+console.log('Done')
+
+const elapsed_seconds = (stop - start) / 1000;
+const duration = wave.samples.length / wave.sampleRate;
+const real_time_factor = elapsed_seconds / duration;
+console.log('Wave duration', duration.toFixed(3), 'seconds')
+console.log('Elapsed', elapsed_seconds.toFixed(3), 'seconds')
+console.log(
+    `RTF = ${elapsed_seconds.toFixed(3)}/${duration.toFixed(3)} =`,
+    real_time_factor.toFixed(3))
+
+vad.free();
+recognizer.free();
diff --git a/scripts/nodejs/index.js b/scripts/nodejs/index.js
index 2375afefa..3f0789edb 100644
--- a/scripts/nodejs/index.js
+++ b/scripts/nodejs/index.js
@@ -6,6 +6,7 @@ const sherpa_onnx_asr = require('./sherpa-onnx-asr.js');
 const sherpa_onnx_tts = require('./sherpa-onnx-tts.js');
 const sherpa_onnx_kws = require('./sherpa-onnx-kws.js');
 const sherpa_onnx_wave = require('./sherpa-onnx-wave.js');
+const sherpa_onnx_vad = require('./sherpa-onnx-vad.js');
 
 function createOnlineRecognizer(config) {
   return sherpa_onnx_asr.createOnlineRecognizer(wasmModule, config);
@@ -23,6 +24,14 @@ function createKws(config) {
   return sherpa_onnx_kws.createKws(wasmModule, config);
 }
 
+function createCircularBuffer(capacity) {
+  return new sherpa_onnx_vad.CircularBuffer(capacity, wasmModule);
+}
+
+function createVad(config) {
+  return sherpa_onnx_vad.createVad(wasmModule, config);
+}
+
 function readWave(filename) {
   return sherpa_onnx_wave.readWave(filename, wasmModule);
 }
@@ -40,4 +49,6 @@ module.exports = {
   createKws,
   readWave,
   writeWave,
+  createCircularBuffer,
+  createVad,
 };
diff --git a/wasm/asr/sherpa-onnx-asr.js b/wasm/asr/sherpa-onnx-asr.js
index 71848a7a9..f0b8bb778 100644
--- a/wasm/asr/sherpa-onnx-asr.js
+++ b/wasm/asr/sherpa-onnx-asr.js
@@ -546,7 +546,7 @@ function initSherpaOnnxOfflineWhisperModelConfig(config, Module) {
   Module.setValue(ptr + 12, buffer + offset, 'i8*');
   offset += taskLen;
 
-  Module.setValue(ptr + 16, config.tailPaddings || -1, 'i32');
+  Module.setValue(ptr + 16, config.tailPaddings || 2000, 'i32');
 
   return {
     buffer: buffer, ptr: ptr, len: len,