forked from PAWPAW-Mirror/lib_xua
42 lines
1.1 KiB
ReStructuredText
42 lines
1.1 KiB
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Mixer
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=====
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The codebase supports audio mixing functionality with highly flexible routing options.
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Essentially the mixer is capable of performing 8 separate mixes with up to 18 inputs at sample rates
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up to 96kHz and 2 mixes with up to 18 inputs at higher sample rates.
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Inputs to the mixer can be selected from any device input (USB, S/PDIF, I2S etc) and
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outputs from the mixer can be routed to any device output (USB, S/PDIF, I2S etc).
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See :ref:`usb_audio_sec_mixer` for full details of the mixer including control.
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Basic configuration of mixer functionality is achieved with the defines in :ref:`opt_mixer_defines`.
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.. _opt_mixer_defines:
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.. list-table:: Mixer defines
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:header-rows: 1
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:widths: 20 80 20
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* - Define
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- Description
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- Default
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* - ``MIXER``
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- Enable mixer
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- ``0`` (Disabled)
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* - ``MAX_MIX_COUNT``
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- Number of separate mix outputs to perform
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- ``8``
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* - ``MIX_INPUTS``
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- Number of channels input into the mixer
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- ``18``
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.. note::
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The mixer cores always run on the tile defined by ``AUDIO_IO_TILE``
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