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Using converter API for a multiple streams driver

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Using converter API for a multiple streams driver

Subject: Using converter API for a multiple streams driver
From: Stéphane Letz <email@hidden>
Date: Tue, 18 Jan 2005 12:23:43 +0100

Hi,

I need to write code to convert data from a multiple streams driver (like the MOTU 828mk2) to a set of non-interleaved mono channels, and I want to use the converter API (AudioConverterNew and AudioConverterFillComplexBuffer....) For various reasons I cannot use the AUHAL component.

I'm a bit confused: do I need to allocate and use a converter for *each* stream in the driver ? That is for the MOTU 828mk2 example:

Stream 1 Main OUT (2 channels) ==> Converter  ==> 2 mono channels
Stream2 Analog (8 channels) ==> Converter ==> 8 mono channels
Stream3 SP-DIF (2 channels) ==> Converter ==> 2 mono channels
Stream4 Phones (2 channels) ==> Converter ==> 2 mono channels
Stream4 ADAT (8 channels) ==> Converter ==> 8 mono channels

or is it possible to use a unique converter to convert all streams at the same time?

Thanks

Stephane Letz


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