2x Freeware Audio Editor – Mac OS X
18. Februar 2008
Für das Bearbeiten von Audio Dateien möchte ich 2 Programme vorstellen. Zum einen ist dies Audacity der Open Source Gemeinde “Sourceforge”. Der Editor ist schon länger für den Mac Nutzer zu haben.
Frisch auf dem Universal Binary Eis hingegen ist Wavepad. Ursprünglich lief die Software lediglich unter Windows.
Hier die Factsheets der Editoren:
Wavepad (NCH Swift Sound Software): 
- Sound editing functions include cut, copy, paste, delete, insert, silence, autotrim and more.
- Audio effects include, amplify, normalize, equaliser, envelope, reverb, echo, reverse, sample rate conversion and more.
- Supports a number of file formats including wav (multiple codecs), mp3, vox, gsm, real audio, au, aif, flac, ogg and many more.
- Batch processing supports up to 32000 files allowing you to apply effects and/or convert your files as a single function.
- Tools include spectral analysis (FFT) and speech synthesis (text-to-speech).
- Recorder supports autotrim and voice activated recording and more.
- Audio restoration features including noise reduction and click pop removal.
- Supports sample rates from 6000 to 96000Hz, stereo or mono, 8, 16, 24 or 32 bits.
- Includes its own CD ripper with ‘ultrafast ‘rip mode and cddb music database lookup.
- Works directly with MixPad multi-track audio mixing software.
- Links directly to the Express Burn CD Recorder to burn your sound files to CD.
- Easy to use interface will get you started editing in just minutes.
Audacity (Sourceforge):
Recording
Audacity can record live audio through a microphone or mixer, or digitize recordings from cassette tapes, vinyl records, or minidiscs. With some sound cards, it can also capture streaming audio.
- Record from microphone, line input, or other sources.
- Dub over existing tracks to create multi-track recordings.
- Record up to 16 channels at once (requires multi-channel hardware).
- Level meters can monitor volume levels before, during, and after recording.
Import and Export
Import sound files, edit them, and combine them with other files or new recordings. Export your recordings in several common file formats.
- Import and export WAV, AIFF, AU, and Ogg Vorbis files.
- Import MPEG audio (including MP2 and MP3 files) with libmad.
- Export MP3s with the optional LAME encoder library.
- Create WAV or AIFF files suitable for burning to CD.
- Import and export all file formats supported by libsndfile.
- Open raw (headerless) audio files using the “Import Raw” command.
- Note: Audacity does not currently support WMA, AAC, or most other proprietary or restricted file formats.
Editing
- Easy editing with Cut, Copy, Paste, and Delete.
- Use unlimited Undo (and Redo) to go back any number of steps.
- Very fast editing of large files.
- Edit and mix an unlimited number of tracks.
- Use the Drawing tool to alter individual sample points.
- Fade the volume up or down smoothly with the Envelope tool.
Effects
- Change the pitch without altering the tempo, or vice-versa.
- Remove static, hiss, hum, or other constant background noises.
- Alter frequencies with Equalization, FFT Filter, and Bass Boost effects.
- Adjust volumes with Compressor, Amplify, and Normalize effects.
- Other built-in effects include:
- Echo
- Phaser
- Wahwah
- Reverse
Sound Quality
- Record and edit 16-bit, 24-bit, and 32-bit (floating point) samples.
- Record at up to 96 KHz.
- Sample rates and formats are converted using high-quality resampling and dithering.
- Mix tracks with different sample rates or formats, and Audacity will convert them automatically in realtime.
Plug-Ins
- Add new effects with LADSPA plugins.
- Audacity includes some sample plugins by Steve Harris.
- Load VST plugins for Windows and Mac, with the optional VST Enabler.
- Write new effects with the built-in Nyquist programming language.
Analysis
- Spectrogram mode for visualizing frequencies.
- “Plot Spectrum” command for detailed frequency analysis.
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