Sound Studio is an application for recording and editing audio digitally on your computer.

Recording:

• 24-bit / 96 kHz sample quality, in stereo or mono.
• Low latency monitoring, using Core Audio.
• Automatic recording starting and stopping based on timers or audio levels (a.k.a. VOX).

Editing:

• Sample-accurate edits.
• Markers (a.k.a. Cue Points) with text labels.
• Time ruler with units for video and film.
• Dual waveform view: upper overview shows entire file, lower view shows magnified view of audio.
• Copy-and-paste editing.
• Basic mixing edits.

Effects:

• Dynamics: Compressor, Expander, and Noise Gate.
• Equalization: Graphic EQ, Low Pass Filter, and High Pass Filter.
• Delay: Chorus, Flanger, Echo, and Reverb.
• Volume: Amplify, Fade In/Out/Special, and Normalize.
• Repair: Interpolate, Silence, DC Offset, and Swap Channels. Repair clicks and pops by interpolating samples or silencing them.
• Tone, FM, and noise generators.
• Pitch adjustment.

File Formats:

• AIFF (.aif) and AIFF-C (.aifc) with compression including IMA 4:1.
• AAC and MP3 (importing only).
• Sound Designer II.
• Wave (.wav, PCM only).
• Tab-delimited text (export only).

Related Recording Equipment:
Report on the best Microphones to use for Home Recording

New in v4.8

• Improved waveform display.
• Smoother scrolling and animations.
• Faster level meter display with smoother animations.
• Improved markers display with larger text and a fixed-width text box.
• Fine-tuned how Insert Markers in Gaps works.
• Reinstated missing "Save Sound Studio Document" Automator Action.
• Playback of a single track of audio in a stereo file now plays sound through both output channels.
• Changed the level meter to use 0.0dB instead of -0.01 dB as the clipping threshold.
• Reduced latency in the software play-through function.
• Improved multi-core CPU usage, plus other internal improvements.
• Fixed a one-pixel-off vertical ruler.
• Requires Mac OS X Mountain Lion (10.8) or later, because of display improvements.

New in v4.7

• Multi-track selection changes
• Running the Fourier Analysis with nothing selected now selects all of the file.
• Bugfix for input level clip indicator.
• Bugfix for audio play-through bug.
• Bugfix for saving in Apple Lossless format.
• Removed Sample Size submenu in the Audio menu.

New in v4.6.11

• Bugfix for saving in CAF and Apple Lossless formats.
• Bugfix for UI bug with Revert command.
• Changed the Save Selection As panel's default folder.

New in v4.6.10

• Bugfix for playback stopping before the end of the selection or file.

New in v4.6.10

• Bugfix for playback stopping before the end of the selection or file.

New in v4.6.6

• Bugfix for audio playthrough with mono audio input devices
• Bugfix for opening compressed or non-integer-PCM WAV files

New in v4.6.4

• Corrected a crash with audio recording

New in v4.6.3

• Fixed for a crash when using filter preview.

New in v4.6.2

• Fixed bug when opening multiple files at the same time, where audio data were jumbled together.
• Corrected bug when opening AIFF-C files.
• Input level meter display issues fixed.
• Audio glitches during playback and recording corrected
• If an error occurs when trying to cross-license from the Mac App Store, the app will show a message in the Trials Left window on launch.

New in v4.6

• Playback speed control.
• Automator Actions for filters added.
• Updated “Save Sound Studio Documents” Automator Action options for file formats.
• Timer Recording now handles fractions of minutes.
• Bugfix for Monbots bug opening multiple files. (Requires downloading Monbots v.1.4.)
• Bugfix for Split By Markers bug with filenames longer than 255 characters.
• Bugfix for FLAC bug with opening large (>2GB) files.
• Bugfix for recording bug when left and right channels were set to the same input channel.
• Bugfix for AppleScript bugs with equalize, reverse, and swap channels commands.
• Bugfix for Pitch and Tempo bug with output duration being incorrect across different invocations.
• Bugfix for Markers sidebar bug with key press handling.
• Bugfix for automatic scrolling bug with zooming, fast forwarding, and rewinding while keeping the playback cue visible in the window.
• Added ability to use a License.txt file in the app bundle for easier site licensing.

New in v4.5.4

• Bugfix for dropped samples during audio recording and playthrough.
• Bugfix for Preferences with audio device channel selection.
• Bugfix for filter preview crashing if play button is pressed twice.

New in v4.5.3

• Bugfix for dropped samples in the right channel during playback.
• Various bugfixes in v4.5.2

New in v4.5

• Adds Snap to Zero Crossings.
• Adds Insert Markers in Gaps or at Gridlines.
• AppleScript support for editing audio file metadata (artist, album, etc.)
• Improved interfae
• Compatibility with OS X Lion
• Upgraded Audio Engine
• Various other improvements and bugfixes

New in v4

• 64-bit app. (Also runs in 32-bit mode. Some plug-ins only available in 32-bit mode.)
• New User Interface with everything you need in one window.
• Output level meters.
• Markers listed in the sidebar.
• Simplified playback and recording transport.
• Improved AudioUnit hosting.
• Many bug fixes

New in v3.6.1.1

• Fixes a bug with switching or hot-unplugging USB audio devices.