diff --git a/entry/src/main/java/com/ohos/speechutilsdemo/AttrValue.java b/entry/src/main/java/com/ohos/speechutilsdemo/AttrValue.java
index 268fcd9423c998efbe032c53ea0809bbd3f63d2a..d2a20be697f1c51417fa27d3c44a31ff6f81d670 100644
--- a/entry/src/main/java/com/ohos/speechutilsdemo/AttrValue.java
+++ b/entry/src/main/java/com/ohos/speechutilsdemo/AttrValue.java
@@ -2,7 +2,7 @@
  * Copyright (C) 2021 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * You may obtain an copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
diff --git a/entry/src/main/java/com/ohos/speechutilsdemo/ListProvider.java b/entry/src/main/java/com/ohos/speechutilsdemo/ListProvider.java
index 2736e3c521b072f816f33a794652394efc6f1c21..ce62c4ed088aece8b158d6169af86edbaa9eba80 100644
--- a/entry/src/main/java/com/ohos/speechutilsdemo/ListProvider.java
+++ b/entry/src/main/java/com/ohos/speechutilsdemo/ListProvider.java
@@ -2,7 +2,7 @@
  * Copyright (C) 2021 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * You may obtain an copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
diff --git a/entry/src/main/java/com/ohos/speechutilsdemo/MainAbility.java b/entry/src/main/java/com/ohos/speechutilsdemo/MainAbility.java
index 7ded0388cb7240337525527f85ae4e6a8baada15..e1cfb03d062dbd6f3e511e9970bcb5146e917ed4 100644
--- a/entry/src/main/java/com/ohos/speechutilsdemo/MainAbility.java
+++ b/entry/src/main/java/com/ohos/speechutilsdemo/MainAbility.java
@@ -2,7 +2,7 @@
  * Copyright (C) 2021 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * You may obtain an copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
diff --git a/entry/src/main/java/com/ohos/speechutilsdemo/MyApplication.java b/entry/src/main/java/com/ohos/speechutilsdemo/MyApplication.java
index 0a980d71c9f2fa201c2729dbd3644a38ffee1a9c..fcd3de2e0bf26b9fc294bdf7d02b5eae955ce386 100644
--- a/entry/src/main/java/com/ohos/speechutilsdemo/MyApplication.java
+++ b/entry/src/main/java/com/ohos/speechutilsdemo/MyApplication.java
@@ -2,7 +2,7 @@
  * Copyright (C) 2021 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * You may obtain an copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
@@ -12,10 +12,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package com.ohos.speechutilsdemo;
 
 import ohos.aafwk.ability.AbilityPackage;
 
+/**
+ * MyApplication
+ *
+ * @since 2021-04-06
+ */
 public class MyApplication extends AbilityPackage {
     @Override
     public void onInitialize() {
diff --git a/entry/src/main/java/com/ohos/speechutilsdemo/slice/AsrAbilitySlice.java b/entry/src/main/java/com/ohos/speechutilsdemo/slice/AsrAbilitySlice.java
index 39aaa6959d14d5c80d44493dd43067639778cc06..e6343c4af590243fdc33482b50b0d9982b313692 100644
--- a/entry/src/main/java/com/ohos/speechutilsdemo/slice/AsrAbilitySlice.java
+++ b/entry/src/main/java/com/ohos/speechutilsdemo/slice/AsrAbilitySlice.java
@@ -2,7 +2,7 @@
  * Copyright (C) 2021 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * You may obtain an copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
diff --git a/entry/src/main/java/com/ohos/speechutilsdemo/slice/MainAbilitySlice.java b/entry/src/main/java/com/ohos/speechutilsdemo/slice/MainAbilitySlice.java
index ba46ab7ccdb5138fde391494885671c22b23aef9..8d80f3143eff5a1e768e82bdbe0f00900dcbefa0 100644
--- a/entry/src/main/java/com/ohos/speechutilsdemo/slice/MainAbilitySlice.java
+++ b/entry/src/main/java/com/ohos/speechutilsdemo/slice/MainAbilitySlice.java
@@ -2,7 +2,7 @@
  * Copyright (C) 2021 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * You may obtain an copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
diff --git a/entry/src/main/java/com/ohos/speechutilsdemo/slice/TtsAbilitySlice.java b/entry/src/main/java/com/ohos/speechutilsdemo/slice/TtsAbilitySlice.java
index da9d5eaeb623a4d49943c3628bc0facf8f166c1f..80061dbe6e5c8fee9fd3d8cee20bc59317aec5aa 100644
--- a/entry/src/main/java/com/ohos/speechutilsdemo/slice/TtsAbilitySlice.java
+++ b/entry/src/main/java/com/ohos/speechutilsdemo/slice/TtsAbilitySlice.java
@@ -2,7 +2,7 @@
  * Copyright (C) 2021 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * You may obtain an copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
diff --git a/speechutils/src/main/java/ee/ioc/phon/ohos/speechutils/utils/LogUtils.java b/speechutils/src/main/java/ee/ioc/phon/ohos/speechutils/utils/LogUtils.java
index 7c0d380d947a7355e2e8ef9c31ae30fce80270c4..7a868b7b7dcd6280a12b8dbc46c97fef8e2a2ac6 100644
--- a/speechutils/src/main/java/ee/ioc/phon/ohos/speechutils/utils/LogUtils.java
+++ b/speechutils/src/main/java/ee/ioc/phon/ohos/speechutils/utils/LogUtils.java
@@ -21,7 +21,6 @@ import ohos.hiviewdfx.HiLogLabel;
 /**
  * description 日志类
  *
- * @author
  * @since 2021-03-20
  */
 public class LogUtils {
diff --git a/speechutils/src/main/java/ee/ioc/phon/ohos/speechutils/view/MicButton.java b/speechutils/src/main/java/ee/ioc/phon/ohos/speechutils/view/MicButton.java
index 87873e254514701c69d8b5782666943bea2e708a..eb1c5a8c4e011f74812a737304608079a26859dc 100644
--- a/speechutils/src/main/java/ee/ioc/phon/ohos/speechutils/view/MicButton.java
+++ b/speechutils/src/main/java/ee/ioc/phon/ohos/speechutils/view/MicButton.java
@@ -195,11 +195,12 @@ public class MicButton extends Component implements Component.EstimateSizeListen
 
     @Override
     public void onDraw(Component component, Canvas canvas) {
-        canvas.drawCircle((float) (width / (double)ER), (float) (height /(double)ER), getRadius(), backgroundPaint);
+        canvas.drawCircle((float) (width / (double) ER), (float) (height / (double) ER), getRadius(), backgroundPaint);
         PixelMap pixelMap = getPixelMap(ResourceTable.Media_microphone);
-        rectSrc = new RectFloat((float) ((width - imageSize) / (double)ER),
-                (float)((height - imageSize) / (double)ER),
-                (float)(width - ((width - imageSize) / (double)ER)), (float)(height - ((height - imageSize) / (double)ER)));
+        rectSrc = new RectFloat((float) ((width - imageSize) / (double) ER),
+                (float) ((height - imageSize) / (double) ER),
+                (float) (width - ((width - imageSize) / (double) ER)),
+                (float) (height - ((height - imageSize) / (double) ER)));
         pixelMapHolder = new PixelMapHolder(pixelMap);
         canvas.drawPixelMapHolderRect(pixelMapHolder, rectSrc, wavePaint);
     }
@@ -212,8 +213,8 @@ public class MicButton extends Component implements Component.EstimateSizeListen
     private float getRadius() {
         double percent = (rmsdbLevel * Math.log(rmsdbLevel)) * NUM_001;
         percent = Math.min(Math.max(percent, 0f), YIF);
-        percent =  (double)NUM_055 +  (double)NUM_045 * percent;
-        return (float) (percent * ((float) min) /  (double)ERF);
+        percent = (double) NUM_055 + (double) NUM_045 * percent;
+        return (float) (percent * ((float) min) / (double) ERF);
     }
 
     /**