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                            多個mp3文件合并成一個mp3文件
```
ffmpeg64.exe -i "concat:123.mp3|124.mp3" -acodec copy output.mp3
```
解釋：-i代表輸入參數

??????????contact:123.mp3|124.mp3代表著需要連接到一起的音頻文件
???????????-acodec copy?output.mp3?重新編碼并復制到新文件中

**音頻文件截取指定時間部分**
```
ffmpeg64.exe -i 124.mp3 -vn -acodec copy -ss 00:00:00 -t 00:01:32 output.mp3
```
解釋：\-i代表輸入參數

\-acodec copy?output.mp3?重新編碼并復制到新文件中
???????????-ss 開始截取的時間點
???????????-t 截取音頻時間長度

**音頻文件格式轉換**
```
ffmpeg64.exe -i null.ape -ar 44100 -ac 2 -ab 16k -vol 50 -f mp3 null.mp3
```
解釋：\-i代表輸入參數
           \-acodec aac（音頻編碼用AAC）?
??????????-ar 設置音頻采樣頻率
??????????-ac ?設置音頻通道數
??????????-ab?設定聲音比特率
???????????-vol? 設定音量
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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