The world's largest selection of pro-quality audio plugins, from the industry's most popular equalizers, compressors and analog models, to award-winning reverbs, delays, effects, virtual instruments, surround sound tools and more. WaveForms is our powerful multi-instrument software application. It seamlessly connects to our USB portable oscilloscope, logic analyzer, and function generator products such the Analog Discovery 2 and Analog Discovery Studio, the Digital Discovery, and the Electronics Explorer Board, with full Windows, Mac OS X, and Linux support.This software, coupled with the hardware.

This appendix describes the audio data and file formats supported in Core Audio in OS X v10.5.

Each audio file type lists the data formats supported for that type. That is, a converter exists to convert data from the particular file format to any of the listed data formats. Some data formats (such as AC3) cannot be converted to a linear PCM format and therefore cannot be handled by standard audio units.

A Core Audio Format (CAF) file can contain audio data of any format. Any application that supports the CAF file format can write audio data to the file or extract the data it contains. However, the ability to encode or decode the audio data contained within it is dependent on the audio codecs available on the system.

Key for linear PCM formats. For example, BEF32 = Big Endian linear PCM 32 bit floating point.

Core Audio includes a number of audio codecs that translate audio data to and from Linear PCM. Codecs for the following audio data type are available in OS X v10.4. Audio applications may install additional encoders and decoders.

Copyright © 2017 Apple Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2017-10-30

TwistedWave, an audio editor for mac.

Easy to use, fast, powerful.

TwistedWave is the ideal tool for:

• Recording. Open TwistedWave, press record. That is how easy it is to start recording a podcast, a song or a concert. While you are recording, place markers with a single key to remember places you will have to edit afterwards. It is truly a good tool for voice over artists.
• Mastering. Equalization, compression, limiting, you name it... From the hundreds of available Audio Unit or VST plugins, you will surely find the right one for the best effect.
• Converting files. TwistedWave can read and write files in many different formats. Converting a single file, or a whole folder of audio files from one format to another is straightforward.
• Batch processing many files. You load a list of sound files in TwistedWave, and it will automatically cut them, apply fades in/out, equalize, convert to mp3, or anything else.

Supported on macOS 10.9 up to macOS 10.15 Catalina.
Still on macOS 10.7 or 10.8? You can use TwistedWave 1.20.2.
Still on macOS 10.6.8? You can use TwistedWave 1.19.1.
No Risk! We offer a 90 day money back guarantee.

Automatically detect silences

With a powerful built-in silence detector, TwistedWave makes it very easy to automatically split an audio file into several parts separated by silences, and save them in distinct files.

• Detect the silences
• Name the different parts
• Export as individual files

Batch processing

TwistedWave now has a very powerful batch processing engine. It can work on any number of files, or entire file hierarchies, and apply any number of effects on them, such as amplifying, applying an Audio Unit or VST plugin or changing the frame rate, for instance.

A processed file can be saved in a different file format. Because TwistedWave can read and write in many different file formats, this makes a very powerful batch converter.

The batch processing can also be used to generate the waveform image from a list of files. This can be used to generate small images representing sound files to build a web site, for instance.

ZTX Time Stretch/Pitch Shift technology

TwistedWave allows you to change the pitch or the speed of a piece of audio independently of each other.

This capability is provided with the ZTX Time Stretch/Pitch Shift technology, licensed from Zynaptiq GmbH, one of the most advanced algorithms for time-based manipulation of audio material available today. With an excellent audio quality, it is really usable for pro audio work.

The ZTX technology also enables TwistedWave to perform pitch correction. Given a piece of audio, ZTX will automatically pitch shift it to the closest note.

Make your own iPhone ringtones!

Load your own music, cut your favourite part, fade in and out, export to the iPhone ringtone format, and you're done!

Processes effects in the background

When TwistedWave is busy loading a large file, or applying a complex effect, all the work happens in the background, and you can continue working with your document, applying new effects to the wave. With TwistedWave, the time where you had to wait for your audio editor to perform a long computation is over. Read more.

Extensive Metadata support

TwistedWave can read and save music metadata, such as the artist name, song title or album art from files in the aiff, wav, mp3, mp4, flac and ogg/vobis format.

Additionally, TwistedWave supports BWAV metadata, as well as Soundminer metadata for wav and aiff files. Furthermore, these metadata can be saved as foreign metadata in flac files.

Automatically fade in/out when copy/pasting

A special pasting mode will automatically fade in and out the clipboard and the existing contents of the file when pasting to make the transitions smoother.

A number of options enables you to select whether or not to apply fades in and out, the fades duration, and more. In order to immediately see how the fades are applied, a sketch shows a preview of the file, represented in blue, and the clipboard in red. The slopes show where the fades take place.

Rearrange your audio with the Clip List

Radio package editing becomes very easy with the clip list. In just a few steps, you can quickly zip through a long recording, select parts of the wave you are interested in and copy them to the clip list. You can then create a new document by pasting your clips from the list.

The clip list can also act as a playlist. You can reorder the clips, play them all...

Mastering made easy with the Effect Stacks

For a successful mastering, it is often necessary to apply more than one effect to a song. With a regular audio editor, you have to apply the effects one by one, and you can't use different presets for an effect without undoing it, and all the effects you applied after it.

With TwistedWave, it is possible to load any number of Audio Unit or VST plugins in an effect stack. This allows you to preview all of them, adjust the settings of one effect independently of the other, change the order in which they are applied...

Blazing fast interface

Zooming in and out of the waveform is very fast. Command-click and drag the mouse to zoom very accurately, while the wave is being refreshed more than 100 times per second. Even when the files are several hours long, when the file has not finished loading, or when an effect is being applied, TwistedWave remains very responsive.

Unlimited and instant Undo/Redo.

At any time, you can undo all the modifications you have made to your file. You can freely experiment with new effects without fear of making mistakes!

Sounds good!

TwistedWave can handle your audio at a resolution up to 32-bit and 192 kHz sampling rate, which makes it truly a professional quality audio editor.

With the ZTX Time Stretch/Pitch Shift technology, you can achieve the best sounding time/pitch manipulation available in the industry.

Import and export many audio file formats

TwistedWave works great as an audio converter. It is able to read and export sound files in many formats, including: wav, aiff, au, snd, sd2, mpg, mp2, mp3, mp4, m4r (iPhone ringtones), m4a (iTunes), m4b (audiobooks), aac, caf, flac, ogg/vorbis, wma, WavPack, Wave64. It is also possible to import the sound track from a movie in mov, avi, flv (Flash Video), wmv or mpeg format.

When you are working on an audiobook or a podcast, TwistedWave automatically converts the markers as chapters in the file, and back. The chapters are perfectly recognized by iTunes and the iPod. They make it very convenient to jump from one part of the file to the next, or seeing what chapter is currently being played.

TwistedWave can also read and save Ambisonic B-Format (amb or ambi) sound files, produced by many popular multichannel audio recorders.

Audio Waveform Viewer

Multichannel audio editing software

Waveform Free

TwistedWave handles multichannel files as easily as mono or stereo files. Multichannel Audio Unit or VST plugins can be applied to files with an arbitrary number of channels.