Re: Noise in audiostream app when use the tabbar or tableview
Re: Noise in audiostream app when use the tabbar or tableview
- Subject: Re: Noise in audiostream app when use the tabbar or tableview
- From: Aran Mulholland <email@hidden>
- Date: Wed, 13 Jul 2011 08:10:28 +1000
I have had similar problems such as these while pushing a navigation
controller on the devices with less processing power. Is your audio
thread sending messages to the UI? If so this can cause skipping if
the UI thread is fully occupied and the audio thread is having to wait
(depending on your messaging scheme). I removed all message sending
from the audio thread and these problems went away. I also wonder how
much work are you doing in your render callback, can it be made more
efficient? Something is causing you to miss the deadline when the UI
is receiving interaction on devices that have less processing power.
Aran
On Wed, Jul 13, 2011 at 4:08 AM, Kyle Sluder <email@hidden> wrote:
> On Tue, Jul 12, 2011 at 9:32 AM, Sasikumar JP <email@hidden> wrote:
>> Hi,
>> I have developed an audio stream player using audio unit API. There is no issue with audio playback. My application has multiple tabs and multiple table views. When i switch from one tab to other tab or while scrolling the table view, i am hearing some extra noise. Otherwise audio playback is fine. I am hearing this noise only with my iPod touch 2nd generation device. I don't see any issue with iPad 2.
>>
>> Can anyone guide me what could be the problem.
>>
>> If there is any issue with the code, I should hear the noise in all the devices. But the noise is generated only with ipod device and also when I use the tabs or table views.
>
> This isn't necessarily true. There's probably something wrong about
> your code that only manifests itself as a problem on iPods.
>
> The only way to find out is for you to actually post your source code.
>
> --Kyle Sluder
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