Re: EXS24/SF2 sample limits on iOS
Re: EXS24/SF2 sample limits on iOS
- Subject: Re: EXS24/SF2 sample limits on iOS
- From: Paul Davis <email@hidden>
- Date: Wed, 19 Jul 2017 18:48:54 -0400
On OSX/MacOS, the limit can be modified by an application subject to limits
set by the system administrator and hard limits in the kernel ((sometimes).
I have no idea if iOS exports the same API.
On Wed, Jul 19, 2017 at 2:14 PM, Douglas Scott <email@hidden>
wrote:
> The maximum number of open files is a iOS/Unix system limitation:
>
> MyIphone:~ mobile$ ulimit -n
> 256
>
> The library you are calling into cannot modify this system limit itself.
> I do not know if this can be modified by running apps or not. You will
> need to trim down your sound bank files to less than 256 samples.
>
>
> Regarding memory limits, there is no way to know this - the amount depends
> on how much is already allocated by the total system. iOS allocates memory
> up from the total memory pool available, until it can’t, and then it kills
> your app. No API to know how much is left or whether you will hit the
> boundary.
>
> -DS
>
> On Jul 19, 2017, at 7:07 AM, Ramon Poca Cos <email@hidden> wrote:
>
> Hi there,
>
> I’ve been hitting different problems with AVAudioUnitSampler using both
> EXS24 and SF2 files.
> For EXS24 I’ve got a kAudio_TooManyFilesOpenError due to the number of
> .wav files of the sample.
> For SF2 I submitted a radar about crashes but as I was using AudioKit and
> Apple won’t check it until I reproduce it with basic CoreAudio.
>
> So, is there any documentation at all about memory/file size/files open
> limits for AVAudioSampler? And related, what sample memory size can I use
> on, say, a basic iPhone 5S without running into trouble?
>
> --
> Ramon Poca - email@hidden
>
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