Re: Decibel Meter ?
 

This application is progressing nicely.

Tip: save time coded measurement values.

Re: Decibel Meter ?
 

Alright,
I added an option for storing the data in a "log" file.
The log file is a simple csv file with ';' as column separator and "newline" as line separator.

The line format is as follows:
<id>;<date>;<time>;<value>;[dB | Linear]
E.g.:
449;2010-12-10;14:25:00.367;45;dB

The date is in ISO 8601 format.
The time is in "hh:mm:ss.zzz" format as described in http://doc.qt.nokia.com/4.7/qtime.html#toString.

If an already existing file is selected, data is appended to that file.
For the same file the id is continuously incremented during the same vumeter "process".
Consequently, the id is reset if, e.g., a new file is selected or vumeter is closed and restarted.

The newest version (0.10.1) is already in extras-devel.

Re: Decibel Meter ?
 

Another quick request - not about the application but how it's packaged specifically: As I'm sure you know, FApMan (and maybe Synaptic Package Manager does too) lets you view the changelogs for programs before installing them. You have updates listed for changes up to 0.0.5 I believe. Any chance you can add the rest for them and continue to keep the changelog going? I find that it's a wonderful way to know what else has been added and what has been fixed/changed in a glance. I don't mind dropping by this thread on the forum to see changes, but it makes things easier.

But, of course, it's a minor thing. So no rush, and the application is still great.

Re: Decibel Meter ?
 

Thanks for the hint.
Actually, I was updating the changelog.
Apparently, I didn't do this correctly. :o

Re: Decibel Meter ?
 

Just uploaded version 0.11.0 to extras devel.

The most important new feature is an "interpolation" option.
This option allows you to choose the number of "samples" used for calculating the volume level.
The number of "samples" is two to the power of the "interpolation level".
Consequently, possible sample numbers are (theoretically, see below) 1, 2, 4, 8, ... , 1024 for the interpolation levels 0, 1, 2, 3, ... , 10.
Thereby, the sample number only defines a maximum value.
The actual number of samples used for calculation may in fact be (much) lower, depending on how much data was ready for processing.
As what I can tell, the settings 1 and 2 practically result in the same sample number of 4.

Currently, there is also some odd issue where the reported volume level may get "stuck" at about 60 dB.
In this situation higher values are still shown but the level does not fall beneath 60 dB.
Setting the interpolation level to another value or selecting a source should resolve this situation.

The second new feature is an option for restoring the default values in the settings dialog.

Furthermore, the changelog should now be properly updated such that you can also follow the changes in your package managers.
Thanks again to Mentalist Traceur for reporting the issue and to lcuk for pointing me into the right direction to get this solved.

Re: Decibel Meter ?
 

Is there a way to disable trigger? Zero seems to trigger continuously and 100-120 is not really off.

Excellent app, though.

Re: Decibel Meter ?
 

Just uploaded version 0.11.1 to extras-devel.
This version disables the trigger when the "Trigger Value" is set to zero.

Re: Decibel Meter ?
 

loving this app.... now i can see how loud the NYC subways are!!!!

Re: Decibel Meter ?
 

fantastic! i cant believe how sensitive the app are with the int. micro.
i can whisper something and see it on the vu meter : D

Re: Decibel Meter ?
 

is the 30dB background noise coming from internal electronic noise?
I never see below 30dB values although the room would be quiet.