Split input audio into several identical outputs.

The filter accepts a single parameter which specifies the number of outputs. If unspecified, it defaults to 2.

For example:

[in] asplit [out0][out1]

will create two separate outputs from the same input.

To create 3 or more outputs, you need to specify the number of outputs, like in:

[in] asplit=3 [out0][out1][out2]

ffmpeg -i INPUT -filter_complex asplit=5 OUTPUT

will create 5 copies of the input audio.