1.16.0 VU meter code - possible error? (1 Viewer)

[hwahrmann]

As i said, i have no time to work on it.
I am totally occupied by work and other private things.

But iirc, i am using this function to show the VUMeter. and there it works correctly, so i can't see a reason why it wouldn't work with your try,
Tough i don't now exactly what you want to achieve.

 

[ajs]

But iirc, i am using this function to show the VUMeter. and there it works correctly, so i can't see a reason why it wouldn't work with your try,

It seems to me that the function's work has changed. Earlier, I saw the maximum picture (VU15). Now there is no. @JimCatMP also confirms this problem.
I decided to see how this function works. I read the documentation. And if I understood correctly (described above).
That function can not display the full range of levels (VU10..VU15 not show).
I just want to know if I understood correctly. Or I'm wrong.
Thanks!

 

[ajs]

@hwahrmann
I try log min and max dB returned by MP RMS Function MediaPortal-1/BassAudioEngine.cs at master · MediaPortal/MediaPortal-1 · GitHub
And get:

24-Jun-2017 14:04:25 Debug [     SpectrumHandler]: OnPlayBackStarted: MediaType: Music LastFM: False - M:\Music\MP3\ACDC\2008 - Black Ice\01 - Rock N' Roll Train.mp3
24-Jun-2017 14:05:21 Debug [     SpectrumHandler]: Spectrum timer done.
24-Jun-2017 14:05:21 Debug [     SpectrumHandler]: VU Meter Min L:-47.3863054484606 R:-44.4416150677965 Max L-6.02046737611064 R-6.02046737611064
...
24-Jun-2017 14:05:23 Debug [     SpectrumHandler]: OnPlayBackStarted: MediaType: Music LastFM: False - M:\Music\MP3\ACDC\2008 - Black Ice\02 - Skies On Fire.mp3
24-Jun-2017 14:05:46 Debug [     SpectrumHandler]: Spectrum timer done.
24-Jun-2017 14:05:46 Debug [     SpectrumHandler]: VU Meter Min L:-67.3863054484606 R:-72.2470664221865 Max L-6.02046737611064 R-6.02046737611064
...
24-Jun-2017 14:05:47 Debug [     SpectrumHandler]: OnPlayBackStarted: MediaType: Music LastFM: False - M:\Music\MP3\ACDC\2008 - Black Ice\03 - Big Jack.mp3
24-Jun-2017 14:06:04 Debug [     SpectrumHandler]: Spectrum timer done.
24-Jun-2017 14:06:04 Debug [     SpectrumHandler]: VU Meter Min L:-71.2240159732389 R:-70.3088661620254 Max L-6.02046737611064 R-6.02046737611064

-6.02046737611064 is Max, Then in MP VuMeter images VU10..VU15 not shown

 

[ajs]

From @JimCatMP log file:

26-Jun-2017 10:45:57 Debug [     SpectrumHandler]: OnPlayBackStarted: MediaType: Music LastFM: False - C:\Users\pw\Music\07. Toccata in D.mp3
26-Jun-2017 10:50:35 Debug [     SpectrumHandler]: VU Meter Min L:-65.4481051882995 R:-66.7870409809118 Max L-6.26591388694379 R-6.43830452162335
...
26-Jun-2017 10:50:35 Debug [     SpectrumHandler]: OnPlayBackStarted: MediaType: Music LastFM: False - C:\Users\pw\Music\H50.mp3
26-Jun-2017 10:50:51 Debug [     SpectrumHandler]: VU Meter Min L:-74.7458411543525 R:-80.7664410676321 Max L-6.66171456673472 R-6.707496144001

Max -6.26591388694379 ...

 

[hwahrmann]

ok, have a look at the attached code.
it is in line 206ff, where i am getting the level of the stream.

     Stream stream = GetCurrentStream();
      int level = Bass.BASS_ChannelGetLevel(stream.ID);

      int peakL = Utils.LowWord32(level); // the left level
      int peakR = Utils.HighWord32(level); // the right level

      double dbLeft = Utils.LevelToDB(peakL, 32768);
      double dbRight = Utils.LevelToDB(peakR, 32768);

 

[ajs]

• double dbLeft = Utils.LevelToDB(peakL, 32768);

• double dbRight = Utils.LevelToDB(peakR, 32768);

In MP Code MediaPortal-1/BassAudioEngine.cs at master · MediaPortal/MediaPortal-1 · GitHub
dbLeft = Un4seen.Bass.Utils.LevelToDB(peakL, 65535);
dbRight = Un4seen.Bass.Utils.LevelToDB(peakR, 65535);

On your screenshot max value -2.23 I wonder how this gets, I think different code you have in the test program and in the MP.

Max: 32768 -> -6.020461 -> -6.020461+(6.020461*0.5) -> -3.010231

 

[ajs]

Send me your MP3, i test on MP and log min, max dB returned by MP RMS proc MediaPortal-1/BassAudioEngine.cs at master · MediaPortal/MediaPortal-1 · GitHub

 

[hwahrmann]

Please have a look at the code, which i sent you.
Compile it or use the exe in the Debug folder and try on your own MP3.

Don't reference always some examples. Have a look at the code, which i sent you and use this one please.

 

[ajs]

Compile it or use the exe in the Debug folder and try on your own MP3.

 

[ajs]

Подробная информация об использовании оперативной
(JIT) отладки вместо данного диалогового
окна содержится в конце этого сообщения.

************** Текст исключения **************
System.ArgumentOutOfRangeException: Индекс за пределами диапазона. Индекс должен быть положительным числом, а его размер не должен превышать размер коллекции.
Имя параметра: index
   в System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)
   в System.Collections.Generic.List`1.set_Item(Int32 index, T value)
   в BassMixer.Main.HandleNextSong() в d:\Documents\Source\Bass\BassMixerRMS\BassMixer\Main.cs:строка 148
   в BassMixer.Main.btStart_Click(Object sender, EventArgs e) в d:\Documents\Source\Bass\BassMixerRMS\BassMixer\Main.cs:строка 116
   в System.Windows.Forms.Control.OnClick(EventArgs e)
   в System.Windows.Forms.Button.OnClick(EventArgs e)
   в System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
   в System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   в System.Windows.Forms.Control.WndProc(Message& m)
   в System.Windows.Forms.ButtonBase.WndProc(Message& m)
   в System.Windows.Forms.Button.WndProc(Message& m)
   в System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   в System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   в System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)