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Re: Steps to Display A Microphone's Input Level
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Re: Steps to Display A Microphone's Input Level


  • Subject: Re: Steps to Display A Microphone's Input Level
  • From: Simon Wolf <email@hidden>
  • Date: Wed, 26 Jan 2011 02:53:32 +0000

Hi Samuel,

If an audio queue offers level metering then that would be fine (although I also need to provide levels when I'm not actually recording which may exclude this option). However, ideally I'd like to know why this isn't working and how to solve it because it seems like it should be possible.

I'll have a look into the audio queue alternative but if anyone has any ideas I'd be most grateful.

Simon


On 25 Jan 2011, at 21:20, Samuel Kitono wrote:

Do you have to use audio unit to get recording and input level metering? I think audio queue provides 2 of these features. It will make your life much easier using audio queue than audio unit.

On Tue, Jan 25, 2011 at 11:47 PM, Simon Wolf <email@hidden> wrote:
> As a follow-up to my own message, I decided to use an AUGraph containing two AudioUnits, a HAL output and a multi channel mixer. I think that I have it all set up properly but I only ever get -120.0 returned as the decibel value of the kMultiChannelMixerParam_PreAveragePower parameter of the mixer.

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References: 
 >Steps to Display A Microphone's Input Level (From: Simon Wolf <email@hidden>)
 >Re: Steps to Display A Microphone's Input Level (From: Simon Wolf <email@hidden>)

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