LASTAR 1.4.0

LASTAR is a simple audio processor for automatic loudness adjustment and audio files splitting. The program allows loudness adjustement and file splitting of a batch of audio recordings with just few clicks. At the opposite of usual available softwares, loudness normalization is done on signal power, which leads to a louder and more homogeneous result than a usual "peak" normalization, in particular on live recordings. Other features include automatic file analysis to set up the best parameters, automated amplifier gain adjustment, noise estimation for file splitting, RMS Amplifier with fast lookahead limiter to prevent clipping, a 3 bands semi-parametric equalizer, smooth automatic Gain Control (AGC), preset management, noise gate and much more.

What's new in this version:
Improved gain control algorithm and directory tree processing.
Ability to process all the files of directory tree and save the processed files in another location keeping the same structure
When processing several files, ability to skip processing if destination file exists. This allows to update an output directory with only the new files. This option is selected by default when processing directories
2 new factory presets "Mobile Pop/rock/metal" & "Mobile Classical/Jazz" to process a collection with automatic gain control.
Additional command line arguments for problem diagnosis

Fixes:
Process didn't exit properly when closing the windows while pre-listening
When process is interrupted, incomplete output file is removed
Several problems in the compression algorithm leading to distortion or bad amplification
Bad handling of filenames containing non ascii characters
ID3V2 Track number tag is now copied to the output
Parallel processing would hang in certain situations - (internal) : bad unsigned cast leading to distortion in mp3 reading if the program is compiled with recent g++

Others:
Ported to QT5 for future maintenance
Rewritten command line arguments management
VC redistributable integrated to the installer
upgraded intaller => better integration of uninstaller in Windows 8

LASTAR Screenshot

LASTAR Interface

Latest version: 1.4.0 (14 Jul 2014)
License: Freeware
System requirements: Windows XP/Vista/7/8
Download: LASTAR_setup_win32.exe (18.6 MB)
Download: LASTAR_win32_portable.zip (19.5 MB)

See also:
MP3 Quality Modifier
Acoustica Basic Edition
wxMP3val
Nero SoundTrax

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