Software Update: Audacity 1.3.8 Beta

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On Friday, after a long time, a new version was released in the development branch of the open source audio editor Audacity. Available for Windows, Linux and Mac OS X, the program can record sound, import and export wav, aiff, ogg and mp3 files and has unlimited undo function. In addition, Audacity has a lot of effects on board, such as fade-in and fade-out, echo, tempo change and noise reduction. More effects can be added easily as the program supports both vst and ladspaplugins. The changelog of this release shows the following changes:

New Features:

Effects and Analysis:

  • VST Effects now display GUI by default
  • Faster Equalization and Noise Removal; improved Truncate Silence and Click Track
  • Chains applied to files now clear temporary data after processing each file
  • Updated Nyquist implementation with support for SAL syntax and improved memory management
  • Plot Spectrum now analyzes up to 237.8 seconds of audio, with separate windows for each project and improved display; new preferences for Spectrograms
  • Contrast Analysis tool now fashionless for easier use


  • Draft Manual/Quick Help included in Windows and Mac installers
  • New “Mixer Board” view with per-track VU meters
  • Mute, solo, gain, pan and track height saved in projects
  • More compact Preferences window with easier-to-use Keyboard tab and new toolbars shortcuts
  • New Screenshot Tools and improved screen reader support


  • Record more than 16 channels (hardware/drivers permitting)
  • Improved support for non-mmap ALSA devices such as PulseAudio
  • 32-bit float data over 0 dB now handled without clipping
  • “Stop” option when importing preserves already imported data
  • AMR NB export now supported if the optional FFmpeg library is installed
  • Faster waveform drawing and better response in multi-track projects

Bug fixes for:

  • Export Multiple: failed if empty label encountered; files silenced if overwriting imported WAV files without copying them in
  • Metadata Editor hidden if it was on a now unavailable second monitor
  • Misaligned audio after “Split New” or Noise Removal effect
  • Incorrect label movement and paste with linked audio and label tracks
  • Equalization, Cut Preview and Advanced Mixing Options dialogue
  • (Linux) Mixer Toolbar should now adjust levels and select input sources properly
  • “Audio cache” preference caused crashes – data is now only cached in memory if available RAM is above a level defined in preferences
  • Various other crashes

The following downloads are available:
Audacity 1.3.8 beta for Windows
Audacity 1.3.8 beta for Linux
Audacity 1.3.8 beta for Mac OS X

Version number 1.3.8 beta
Release status beta
Operating systems Windows 2000, Linux, Windows XP, macOS, Windows Server 2003, Windows Vista
Website SourceForge
File size 7.60MB
License type GPL
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