What is the process for combining several mono files into a single multichannel file using FFmpeg?

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The process for combining several mono files into a single multichannel file using FFmpeg is as follows:

1. Open a command prompt or terminal window.

2. Navigate to the folder where the mono files are located.

3. Copy and paste the following command:

ffmpeg -i input1.wav -i input2.wav -i input3.wav -filter_complex "[0:a][1:a][2:a]join=inputs=3:channel_layout=3.0:map=0.0.0[a]" -map "[a]" output.wav

1. Replace "input1.wav", "input2.wav", and "input3.wav" with the names of your mono files.

2. Replace "output.wav" with the desired name of your multichannel file.

3. Press enter to start the conversion process.

4. Wait for FFmpeg to finish combining the mono files into a single multichannel file.

5. Once the process is complete, navigate to the folder where the output file is located and verify that it is a multichannel file.