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Re: Sharing data between UI and AU
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Re: Sharing data between UI and AU


  • Subject: Re: Sharing data between UI and AU
  • From: Ian Kemmish <email@hidden>
  • Date: Wed, 23 Feb 2011 16:45:15 +0000


On 23 Feb 2011, at 07:12, Howard Moon <email@hidden> wrote:


I know that AudioUnits are intended to have the processing code and UI completely separate. But what if the two need to share a large amount of data? For reasonable data sizes, obviously a property can be used, and the data copied between the two. But what if the amount of data is large (i.e., several Mb)?


On a modern computer, several Mb of data is no more burdensome than a few tens of Kb used to be for us old-timers. It's not like you're actually having to copy it by hand, after all.

People start to fret if the computer goes quiet for maybe a quarter of a second or more. Figure out how much data memmove() can copy out of your AU in a quarter of a second. It's a lot.


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Ian Kemmish 18 Durham Close, Biggleswade, Beds SG18 8HZ
email@hidden Tel: +44 1767 601361 Mob: +44 7952 854387
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