Tag Archives: meter

VSLM ~ Virtual Sound Level Meter

Posted by tom2tec on

This project is the MATLAB development of a virtual sound level meter. The program will read in a calibrated .wav file and allow the user to analyze it as one would analyze a sound field with a sound level meter. The software implements Fast, Slow, Impulse and LEQ; A, C and Flat Weighting; Ln and Noise Dose analysis; Octave and 1/3 Octave band analysis; high resolution FFT analysis and spectrograms. Band analysis can be made using fast FFT methods or slower, but ANSI standard methods.

Source code requires MATLAB + Signal Processing Toolbox.
Developed under MATLAB R2010a (but might work with some earlier versions)

Executable version does not require MATLAB and runs under Windows XP, Vista, and Windows 7.

Features

  • MATLAB Based Software Sound Analyzer
  • Mimics results of an ANSI Standard Integrating Sound Level Meter
  • Includes Lp, LEQ, Octave and 1/3 Octave Band, NC, RC and FFT Analysis

VSLM

sourceforge.net/projects/vslm/

Youlean ~ Free Loudness Meter

Posted by tom2tec on

Youlean Loudness Meter is your ultimate free VST, VST3, AU and AAX plugin for loudness measurement.

Youlean-Loudness-Meter

youlean.co/youlean-loudness-meter

ORBAN Loudness Meter ~ Loudness & Peak Display

Posted by tom2tec on

This software simultaneously displays instantaneous peaks, VU, PPM, CBS Technology Center loudness, and ITU BS.1770 loudness. All meters include peak-hold functionality that makes the peak indications of the meters easy to see.

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. ~ Hydrogen Audio

ORBAN Meter

www.orban.com/orban/meter

PeppyMeter ~ Linux Analog VU Meter

Posted by tom2tec on

PeppyMeter is a software VU Meter written in Python. It was originally developed as the new ‘VU Meter’ screensaver for Peppy Player. With minor modifications it became a stand-alone application. PeppyMeter gets audio data from media players (e.g. mpd) via fifo and displays current volume levels in a Graphical User Interface in the form of a traditional VU Meter.

  • Written in Python.
  • Pygame library leveraged for UI purposes.
  • UI is available in three resolutions 800×480, 480×320 and 320×240 pixels.
  • The input for the program is the data from the named pipe. That signal should be provided by peppyalsa plugin.
  • Supplies 9 default meters out of the box.
  • Allows you to add your own meters.
  • Open-source. All source files are available on Github.
  • Several data sources are available for testing and tuning.
  • Provides four types of output: Display, Serial, I2C and PWM.

meters

github.com/project-owner/PeppyMeter.doc/wiki
github.com/project-owner/PeppyMeter
diyaudio.com/forums/pc-based/291010-peppymeter

Foobar2000 1.x ~ Installing Analog VU Meters

Posted by tom2tec on

Adding an analog VU meter to the old Foobar2000 1.x Default User Interface

Required component: foo_vis_vumeter

Directions:

  1. Download foo_vis_vumeter
  2. Navigate to File \ Preferences \ Components
  3. Drag foo_vis_vumeter.dll to the component window
  4. Click Apply and then Ok to restart Foobar
  5. Copy any .bin skin files to the …\AppData\Roaming\foobar2000\user-components\foo_vis_vumeter folder (Shift+File>Browse configuration folder)
  6. Select View > Layout > Enable layout editing mode
  7. Right click the tab area in a panel and select Add New Tab
  8. Right click the new tab and rename it “Analog VU Meter” or whatever
  9. Right click the new display area and select Add New UI Element
  10. Select ‘Analog VU Meter’ from the list (Playback Visualization)
  11. Disable layout editing mode

Group Submenus:

Adding a new subfolder to the …\AppData\Roaming\foobar2000\user-components\foo_vis_vumeter folder creates a listing with that subfolder’s name in the Group submenu. ‘.bin‘ meter files in those subfolders are then accessible via the corresponding group submenu.

Parameters:

Right mouse click on the meter display:

  • Layout submenu / Horizontal or Vertical / Dual or Single / Mono / Lock Aspect Ratio
  • Select skin

Preferences > Advanced > Display > VU Meter:

  • VU meter sensitivity – Default left and right preamp (db): 20 and rise time(s) 0.20s

Mouse wheel (hover over meters)

  • Adjusts meter sensitivity

Resources:
Analog VU Meter Skin Gallery
Updated version for Foobar2000 2.x