First we can record auidio in Chrome:
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1709548957619/a700906f-f6a6-4e7c-9b6f-8f3a646d3e23.png" alt class="image--center mx-auto" />
Save the capture
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1709548977798/8b0dd198-0cd5-4aa1-8c0b-72a69c9441b6.png" alt class="image--center mx-auto" />
Convert the capture into mono:
<pre><code class="lang-bash">ffmpeg -i 5-tamil-mono.mp3 -ss 0 -t 10 -ac 1 5.mp3
</code></pre>
Here is an example for 5 channels:
<pre><code class="lang-bash">ffmpeg
 -i 1.mp3 -i 2.mp3 -i 3.mp3 -i 4.mp3 -i 5.mp3
 -filter_complex "[0:a][1:a][2:a][3:a][4:a]amerge=inputs=5[a]"
 -map "[a]"
 output.wav
</code></pre>
You can read more here: <a target="_blank" href="https://trac.ffmpeg.org/wiki/AudioChannelManipulation">https://trac.ffmpeg.org/wiki/AudioChannelManipulation</a>

First we can record auidio in Chrome:

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1709548957619/a700906f-f6a6-4e7c-9b6f-8f3a646d3e23.png align="center")

Save the capture

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1709548977798/8b0dd198-0cd5-4aa1-8c0b-72a69c9441b6.png align="center")

Convert the capture into mono:

```bash
ffmpeg -i 5-tamil-mono.mp3 -ss 0 -t 10 -ac 1 5.mp3
```

Here is an example for 5 channels:

```bash
ffmpeg
    -i 1.mp3 -i 2.mp3 -i 3.mp3 -i 4.mp3 -i 5.mp3
    -filter_complex "[0:a][1:a][2:a][3:a][4:a]amerge=inputs=5[a]"
    -map "[a]"
    output.wav
```

You can read more here: [https://trac.ffmpeg.org/wiki/AudioChannelManipulation](https://trac.ffmpeg.org/wiki/AudioChannelManipulation)

Embed Multiple Audio Channels in a Single Track (via FFMPEG)

Knowledge base for the Live Streaming team 🙏
