On Sun, May 8, 2011 at 3:28 AM, Niran Bala wrote:
> Hi,
>
> I am trying to measure dB levels of my voice.
This has nothing to do with Cocoa. You should instead ask your
question on the coreaudio-api list.
--Kyle Sluder
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Cocoa-dev mailing list (Coco
On 8 May 2011, at 11:07 PM, Graham Cox wrote:
> You need to find in the documentation or ask what 0dB is considered to be in
> this measurement system.
As I understand it, the 0dB reference for a VU meter is usually the maximum
volume the system can reproduce without distortion (maybe plus some
On 08/05/2011, at 8:28 PM, Niran Bala wrote:
> How should I interpret this value?
>
> When I mute the Mic on my laptop, this value is -120
My GUESS (only) would be that this is the line level, which is logical, since
it couldn't possibly be actual sound pressure level, since the signal is
am
Hi,
I am trying to measure dB levels of my voice.
I use the following code.
UInt32 propertySize = format.mChannelsPerFrame * sizeof
(AudioQueueLevelMeterState);
AudioQueueGetProperty(
queue,
