Technical Specifications

Minimum System Requirements
  • Mac computer with an Intel processor.
  • 1GB of RAM. (2GB recommended.)
  • OS X Mountain Lion (10.8) or later.
  • Audio recording and playback on 2 channels and multiple tracks.
  • Number of tracks limited only by processor and memory constraints.
  • Uses 32-bit floating point PCM format internally.
  • 64-bit Intel app binary.
  • Preserves BWF (Broadcast Wave Format) data in .WAV files.
  • AudioUnit plug-in hosting.
  • Applescript and Automator support.
Supported File Formats
PCM formats:
  • AIFF
  • CAF
  • WAVE
Compressed formats*:
  • AAC (m4a)
  • AIFF-C
  • Apple Lossless
  • FLAC
  • Ogg Vorbis
  • ADTS
  • AU
* The Sound Studio app downloaded from this website under Downloads supports MP3 encoding using LAME.framework, which must be installed separately.
  • Snap to zero crossings.
  • FM synthesis, sine, triangle, square wave, and noise generators.
  • Automatically generate markers in silent gaps or in a grid.
  • Zoom in as close as sample level.
  • Split by Markers feature to split a long file into separate tracks.
Filters and Effects
  • Amplify/Volume
  • Fade In, Fade Out, and Fade Special (with an envelope)
  • Normalize
  • Dynamics Compressor
  • Dynamics Expander
  • Noise Gate Expander
  • Add Noise (or cowbell)
  • DC Offset
  • Interpolate
  • Invert Signal Polarity
  • Swap Left and Right Channels
  • Backwards/Reverse Audio
  • Chorus
  • Delay and Echo
  • Flanger
  • Pitch and Tempo
  • Reverb
  • 3-band, 10-band, and chart-based Graphic EQ
  • High Pass
  • Low Pass

What's New

What's new in version 4.8.13

  • Fixed a bug with saving or loading marker positions in files in CAF format.
  • Updated Save As to always shows the last setting selected by the user for Ogg Vorbis and MP3 quality options.
  • Updated FLAC library.
  • App is 64-bit only and no longer supports 32-bit.
  • Updated WAV markers so that markers save into standard ‘cue’ and ‘list’ chunks.
  • Updated Playthrough Input to Output so that it's now always off when Sound Studio is launched to avoid audio feedback.

What's new in version 4.8.12

  • Fixed a bug with markers in the CAF file format.

What's new in version 4.8.11

  • Fixed a bug that prevented the user from saving as Apple Lossless (AAC) when using the Split by Markers command.
  • Fixed a bug that prevented the user from using the Save As command because of a permissions alert (in the Mac App Store version of the app).

What's new in version 4.8.9

  • Fixed a bug that had removed some of the Automator Actions. The full list of Automator Actions is back!
  • Fixed a bug with the output volume slider so that it correctly controls play-through.
  • Fixed a bug with the input gain slider so that it continues to control input gain when an external input device is unplugged from the computer.
  • Fixed a bug with chapter marker positions in M4A files.

What's new in version 4.8.8

  • Increased transparency of markers in the overview waveform area, so that the waveform can still be seen under marker labels.
  • Sound Studio 4.8.0 and later require 64-bit. 32-bit is no longer supported.

What's new in version 4.8.7

  • Fixed a bug with timer recording.
  • Expanded Fade Special envelope so that the level can now also be increased up to 200%.

What's new in version 4.8.6

  • Fixed a crashing bug with the Fourier Spectrum Analysis tool.
  • Updated and fixed progress bar for Split by Markers.

What's new in version 4.8.5

  • Fixed a bug where .mp4 and .mpg files were not recognized.
  • Fixed a bug with the Automator Action for Normalize.

What's new in version 4.8.4

  • Added a preference for default bit rate.
  • Added a warning in the Save panel for when markers and metadata will not be saved in the selected file format.
  • Fixed a bug where using search in the Open panel would show grayed-out files.
  • Fixed bugs with AAC files related to added silence at start and end.
  • Fixed a bug where the bit rate was not being remembered between opening a file and saving it.
  • Fixed a bug where certain MP3 files could not be opened.
  • Progress is now shown when using the Save Selection As command.
  • Fixed bugs with the AppleScript Save command, and by extension, fixed issues with Automator and Monbots.

What's new in version 4.8.3

  • Fixed a bug where the app would crash when trying to save or cancel out of presets.
  • Fixed a bug where applying some filters would reduce the audio and selection length.
  • Fixed a bug with number input and output fields so that Sound Studio properly handles commas and points.

What's new in version 4.8.2

  • Added an error message for audio unit plug-ins that are not Sandbox Safe. (Audio unit plug-ins that are not Sandbox Safe will not work in Sound Studio.)
  • Sound Studio now uses less CPU while recording.
  • Fixed a bug with clicking on a marker to select it.
  • Fixed a bug with missing “is recording” Applescript property.
  • Fixed a bug with the file format popup under the Save As command.

What's new in version 4.8.1

  • Artwork images can now be dragged from the file's Info sheet into the Finder.
  • Fixed a bug with reading artwork and comment tags in MP3 ID3v2.3 and later versions.
  • Fixed several minor UI bugs.
  • Improved waveform display now is in Retina resolution.
  • Fixed bug with Insert Silence duration field.
  • Fixed bug with Monbots where the app would crash when processing large, uncompressed files.
  • Fixed issue with accessing third-party audio unit plug-ins in the app.

See Release Notes for all versions.