Re: free Orban loudness meter app now available

In article <IeWdnZaEiMb032LanZ2dnUVZ_uevnZ2d@[EMAIL PROTECTED]
>, 
arnyk@[EMAIL PROTECTED]
 says...
>
>
>"Robert Orban" <donotreply@[EMAIL PROTECTED]
> wrote in message
>news:20080411-033616.328.0@[EMAIL PROTECTED]
>
>> The software accepts two-channel stereo inputs. The VU
>> and PPM meters are split to indicate the left and right
>> channels. The PPM meter also displays the instantaneous
>> peak values of the L and R digital samples.
>
>When I started the program, the Vu and PPM meters started reading 
mid-scale 
>and full-scale respectively, with no music playing. This seems 
>counter-intuitive. 

That is not expected operation. With silence, the meters should read 
nothing.

The meter uses the standard Windows WDM mechanism to fetch the 
audio through Wave I/O. To a large extent, one is at the mercy of one's 
sound card and its driver to get proper operation of the meter. Because 
this is free software, we will not be able to investigate every hardware-
related problem. The best we can do is to follow the WDM standard as 
closely as possible.

If the meter seems to be operating improperly, one thing to do is to 
check one's CPU usage in Windows Task Manager. If the meter is 
using too much CPU, turn down its refresh rate.

In my tests, I have seen 40% CPU usage on an old 2.56 GHz P4 machine 
when the meter's refresh rate is set to 100 Hz. This drops to below 20% 
when the refresh rate is descreased to 25 Hz.

Bob Orban