mesure audio
LAMA (pour Little Audio Measurement Application) fournit des outils de mesure et analyse audio :
- Mesures de transfert
déterminent rapidement la réponse en fréquence d'un système acoustique
- analyse spectrale
analyseurs et historiques de spectres
- instrument d'historique de niveau
niveaux peak et RMS
- enregistreur
enregistreur intégré, capture le signal sous divers formats y compris compressés comme AAC
- Goniometer
affichage de l'image stéréo et de sa corrélation
- SPL Meter
mesure de niveau de pression en dBA, dbB et dBC ; réponse lente ou rapide ; mesure LEQ
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Version 1.34 |
MacOS X Intel |
(App) |
24 janv. 2012 |
Accumulation Mode for Spectrum Analyzer and Spectral History instrument: the accumulation of spectrum analyzer can be switched between pink noise is flat, white noise is flat or peak.
Ocatve smoothing for Spectrum Analyzer and Spectral History instrument: new method for smoothing curves, creating more readable results for continuous traces.
Changed algorithm for pink noise Signal Generator, having lower crest-factor and is “pinkerî now…
Bugs fixed
Fixed a bug where the “frequency detailî reading could disappear. RS
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Version 1.33b1110 |
MacOS X UB |
(App) |
10 mai 2011 |
* Input Patch: With the new Input Patch Window it is easy to route instrument inputs to an other physical input. Furthermore it is possible to give a Channel Name Alias to an input channel.
* Multiple Delay Finder Results: The Delay Finder can store the last measured results in it's window.
* Session loading when Audio Hardware changes: The last session is now bound to an audio hardware device - when using a different device, LAMA can restore it's state into the one being used the last time with this hardware.
* Drop Files into Recordings Window: it is possible to drop audio files from the Finder into the Recordings Window - so it can act as a clipboard for often used files for the File Player.
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Version 1.32b1100 |
MacOS X UB |
(App) |
19 oct. 2010 |
New Features
* The application is now named LAMA – LAMA Audio Measurement Application (It's a feature…)
* The Level History Instrument shows Level Distribution
* SPL Log Window: A Window holding all SPL Logs.
* Big SPL Window: A SPL Meter can open Big Windows – they allow you to have a bigger numeric readout of the Sound Pressure Level. They can also work as a traffic light, as the text color can change with certain level thresholds.
* Growl Notification when Audio Hardware or properties change. (For those of you fighting with loose Firewire connectors)
* Meter: The table to show/hide a input channel can be controlled with the keyboard (use space bar to show or hide a channel)
* Meter: You can check all channels to be shown or hidden by holding down alt when clicking one of the checkboxes in the table.
* Meter orientation can be changed with a "rotate" gesture on trackpad or Magic Mouse.
* Some Instruments are moveable by dragging the instrument background – fixes an issue where a vertical meter could become too narrow to be moved by dragging the titlebar.
* The Instrument Settings View can be shown by double-clicking into the instrument background. If requested, LAMA's default behavior (showing the settings view by moving the mouse into the lower area of the window) can be disabled with the new show settings view only with double-click item in LAMA's Preferences.
* More frequency labels are shown when there is sufficient space and the appropriate setting in the Preferences is checked.
* SPL: LEQ Prediction – A prediction (based on the linear average of the last minute) of the expected LEQ value is displayed.
Bugfixes
* fixed a bug, where a SPL Instrument with a hidden log-area was not restored correctly. (The log-area was shown in this case)
Changes
* Improved Goniomter display.
* Solid lines for frequency scales are drawn at the same frequencies. (was dependent on the lowest frequency before).
* The Info Panel can be closed (and shown again with Window – Info Panel.
* Changed Meter Peak and RMS Fall Time (Peak: 1.7sec for 20dB, RMS: 20dB/sec).
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Version 1.31b1093 |
MacOS X UB |
(App) |
8 juil. 2010 |
New Features
* Delay Time Offset: delay times are displayed relative to a variable reference point.
* Delay Finder: the delay finder window has some enhancements and responds to keyboard commands. Please refer to the user manual for the new functions.
* Spectrum Analyzer: the fall time for the peak curve is customizable.
* Peak Bar Drawing Mode: new drawing mode for Transfer and Spectrum Analyzer.
* SPL Limit Alert: you can be informed with a Growl Notification when the current SPL exceeds a certain limit.
* Clipping Alert: you can be informed with a Growl Notification when one of the input channels is clipping.
Bugfixes
* Fixed a bug where the name of transfer instruments was not editable.
* Faster redraw on SPL Meter when measurement speed is fast.
* Fixed a bug where the SPL Meter window could disappear from screen.