Convert ALAC to WAV
Max file size 100mb.
ALAC vs WAV Format Comparison
| Aspect | ALAC (Source Format) | WAV (Target Format) |
|---|---|---|
| Format Overview |
ALAC
Apple Lossless Audio Codec
Apple Lossless Audio Codec (ALAC) is a lossless compression format developed by Apple in 2004 and open-sourced in 2011. ALAC achieves approximately 50% compression compared to uncompressed audio while preserving every bit of the original recording. It is the native lossless format for iTunes, Apple Music, and all Apple devices, stored within M4A/MP4 containers. Lossless Modern |
WAV
Waveform Audio File Format
Waveform Audio File Format (WAV) is an uncompressed audio container developed by Microsoft and IBM in 1991. WAV stores raw PCM samples, preserving every detail of the original recording with zero quality loss. It is the industry standard for professional recording studios, broadcast facilities, mastering houses, and CD authoring. Lossless Standard |
| Technical Specifications |
Sample Rates: 1–384 kHz
Bit Depth: 16, 20, 24, 32-bit Channels: Mono, Stereo, Surround (up to 7.1) Codec: Apple Lossless (open-source since 2011) Container: M4A / MP4 / CAF (.m4a) |
Sample Rates: 8 kHz – 192 kHz+
Bit Depth: 8, 16, 24, 32-bit (int/float) Channels: Mono, Stereo, Multichannel (up to 18) Codec: PCM (uncompressed) Container: RIFF/WAVE (.wav) |
| Audio Encoding |
ALAC uses linear prediction and entropy coding to achieve lossless compression, storing audio in M4A/MP4 containers: # Encode WAV to ALAC ffmpeg -i input.wav -codec:a alac output.m4a # ALAC with high-resolution settings ffmpeg -i input.wav -codec:a alac \ -sample_fmt s32p output.m4a |
WAV stores raw PCM samples directly without any compression or transformation: # Decode to WAV (16-bit, 44.1 kHz) ffmpeg -i input.mp3 -codec:a pcm_s16le \ -ar 44100 output.wav # High-resolution WAV (24-bit, 48 kHz) ffmpeg -i input.mp3 -codec:a pcm_s24le \ -ar 48000 output.wav |
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| Version History |
Introduced: 2004 (Apple Inc.)
Current Version: Open-source reference implementation Status: Active, open-source since 2011 Evolution: Proprietary (2004) → Open-source (2011) → Apple Music Lossless (2021) |
Introduced: 1991 (Microsoft/IBM)
Current Version: RIFF WAVE, RF64 (>4 GB extension) Status: Industry standard, actively used Evolution: WAV (1991) → BWF (1997) → RF64 (2007) |
| Software Support |
Media Players: iTunes, Apple Music, VLC, foobar2000, AIMP
DAWs: Logic Pro, GarageBand (native); others via FFmpeg Mobile: iOS (native), Android (VLC, Poweramp) Web Browsers: Safari (partial); Chrome/Firefox via extensions Streaming: Apple Music, AirPlay |
Media Players: VLC, WMP, foobar2000, AIMP
DAWs: Pro Tools, Logic Pro, Ableton, FL Studio, Reaper, Audacity Mobile: iOS, Android — native support Web Browsers: Chrome, Firefox, Safari, Edge Broadcast: Adobe Audition, Hindenburg, SADiE |
Why Convert ALAC to WAV?
Converting ALAC to WAV decompresses lossless Apple audio into uncompressed PCM format, creating a universally compatible working file for professional audio production. While both ALAC and WAV preserve identical audio quality, WAV's uncompressed nature makes it the industry standard for recording studios, broadcast facilities, and mastering houses.
ALAC uses lossless compression to reduce file sizes by approximately 50% compared to WAV, which is excellent for storage efficiency. However, many professional workflows require uncompressed PCM: broadcast playout systems, CD mastering software, and some DAW configurations work exclusively with WAV. Converting ALAC to WAV ensures seamless integration with these professional requirements.
WAV is the most universally supported audio format in professional environments. Every DAW, every audio editor, every broadcast system, and every operating system handles WAV natively without any codec dependencies. This universal compatibility makes WAV the safest choice when you need guaranteed playback and editing across any platform or application.
Since both ALAC and WAV are lossless, this conversion is mathematically perfect — the WAV output will be bit-identical to the original uncompressed audio that was encoded into ALAC. The only trade-off is file size: WAV files will be roughly twice as large as the ALAC originals. Use this conversion when you need maximum compatibility or when your workflow requires uncompressed PCM.
Key Benefits of Converting ALAC to WAV:
- Bit-perfect lossless conversion with zero quality loss
- Universal compatibility with every DAW and audio application
- Industry standard for recording, mastering, and broadcast
- No codec dependencies — works on every operating system
- Required format for CD authoring (Red Book standard)
- Ideal working format for audio editing and post-production
- No decompression overhead during playback and editing
Practical Examples
Example 1: Professional Mastering Session
Scenario: A mastering engineer converts client-delivered ALAC files to WAV for their mastering suite, which requires uncompressed PCM input.
Source: mix_final_v3.m4a (ALAC, 5 min, 35 MB) Conversion: ALAC → WAV (24-bit, 96 kHz) Result: mix_final_v3.wav (82 MB) Mastering workflow: 1. Convert ALAC to WAV at session resolution 2. Import WAV into mastering DAW (Pro Tools, WaveLab) 3. Apply EQ, compression, limiting chain 4. Export final master as WAV for distribution 5. Bit-perfect source ensures clean mastering
Example 2: CD Authoring and Burning
Scenario: A musician converts their ALAC album to WAV for burning an audio CD, as Red Book standard requires uncompressed 16-bit/44.1 kHz PCM.
Source: 12 ALAC album tracks (total 340 MB) Conversion: ALAC → WAV (16-bit, 44.1 kHz) Result: 12 WAV tracks (total 650 MB) CD requirements met: ✓ Red Book standard 16-bit/44.1 kHz PCM ✓ Compatible with all CD burning software ✓ Bit-perfect conversion from lossless source ✓ Gapless track transitions preserved ✓ Maximum quality for physical media release
Example 3: Broadcast Playout System
Scenario: A radio station converts their ALAC music library to WAV for their playout automation system that requires uncompressed audio files.
Source: station_jingle.m4a (ALAC, 15 sec, 1.8 MB) Conversion: ALAC → WAV (16-bit, 48 kHz) Result: station_jingle.wav (3.4 MB) Broadcast compliance: ✓ Uncompressed PCM for playout automation ✓ 48 kHz broadcast-standard sample rate ✓ BWF metadata fields available for logging ✓ Compatible with all broadcast automation systems ✓ No decoding latency during live playback
Frequently Asked Questions (FAQ)
Q: Does converting ALAC to WAV preserve audio quality?
A: The conversion preserves decoded audio quality in a lossless container. The conversion handles the technical details automatically for optimal results.
Q: How much will file sizes change?
A: File sizes will be similar, as both are lossless formats. The exact ratio depends on the audio content and encoding parameters.
Q: Can I convert the WAV back to ALAC?
A: Yes — since both formats are lossless, the conversion is perfectly reversible with zero quality loss.
Q: Will metadata and album art transfer?
A: Standard metadata (title, artist, album, track number) transfers between formats. Album art embedding depends on the target format's capabilities. Our converter handles the metadata mapping automatically.
Q: What settings should I use for WAV encoding?
A: For the best quality, use the highest practical bitrate or quality setting. Our converter uses optimized default settings that balance quality and file size for typical use cases.
Q: How long does the conversion take?
A: ALAC to WAV conversion is fast — typically several times faster than real-time on modern hardware. A 5-minute song converts in just a few seconds. Upload and download time may be the limiting factor for online conversion.
Q: Is ALAC the same as M4A?
A: Not exactly. ALAC is a lossless audio codec, while M4A is a container format (file extension). ALAC audio is stored inside M4A containers, but M4A files can also contain lossy AAC audio. The codec (ALAC vs AAC) determines whether the audio is lossless or lossy.
Q: Why choose WAV over other formats?
A: WAV is particularly suited for its target use cases — lossless archival and cross-platform compatibility. The best format depends on your specific needs: compatibility, file size, quality requirements, and target platform.