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Re: Audio passthrough fails after suspend
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Re: Audio passthrough fails after suspend


  • Subject: Re: Audio passthrough fails after suspend
  • From: Jeff Moore <email@hidden>
  • Date: Tue, 26 Oct 2004 12:04:25 -0700

In general, sleep is transparent to applications. It just happens. From the HAL's perspective, it is, at worst, going to require a resynch with the hardware. (This normally shows up as one or more overload notifications from the HAL.)

Without more information, it's going to be hard to pinpoint what the trouble might be. I'd start debugging this by looking at what exactly is happenning at sleep and wake up. Try throwing some printf's around to log what your code is doing across the break. Pay particular attention to what notifications you are getting from the HAL and how you are reacting to them.

On Oct 26, 2004, at 10:15 AM, Peter Mueller wrote:

Hi,

I have a simple application here that just passes data recorded on the microphone input to the speaker output. All works fine, but after suspend mode the application does not work anymore. Any idea why this happen. Do I have to reinitialize anything after coming back from suspend? Ho do I get informed about that?

I use 10.2.8 on a new iMac.

Thanks,
Peter

---
Peter Mueller
email@hidden

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Jeff Moore
Core Audio
Apple


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