# Audio Decode Implementation With PyAV

*author: Junjie Jiang*

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### Description

**Audio** **Decode** converts the encoded audio back to uncompressed audio frames. In most cases, audio decoding is the first step of an audio processing pipeline.




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### Code Example


```Python
import towhee

towhee.glob('./music.mp3').audio_decode.ffmpeg().flatten().show(limit=1)


# batch decode
# towhee.glob('./music.mp3').audio_decode.ffmpeg(500).flatten().show(limit=1)

```

![img](./img.png)

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### Factory Constructor


Create the operator via the following factory method:

***audio_decode.ffmpeg()***

batch decode, batch_size = 100:

***audio_decode.ffmpeg(100)***



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### Interface



An audio decode operator takes an audio file path as input. It decodes the audio back to audio frames.

**Args:**

**audio** (str):

Audio file path.

**Return** (generator):

An generator over audio frames with type `towhee.types.AudioFrame`.