Convert WMA to TTA

Drag and drop files here or click to select.
Max file size 100mb.
Uploading progress:

WMA vs TTA Format Comparison

Aspect WMA (Source Format) TTA (Target Format)
Format Overview
WMA
Windows Media Audio

Windows Media Audio (WMA) is a proprietary audio codec developed by Microsoft in 1999. WMA Standard is a lossy codec designed to compete with MP3 and AAC, while WMA Lossless and WMA Pro offer lossless and multichannel variants. WMA was the default codec for Windows Media Player.

Lossy Legacy
TTA
True Audio

True Audio (TTA) is a free, open-source lossless audio codec created in 2004. It uses a simple adaptive prediction filter followed by entropy coding to achieve lossless compression ratios comparable to FLAC and APE. TTA is designed for simplicity and speed, offering real-time encoding and decoding with minimal CPU usage, making it well suited for hardware players and embedded devices.

Lossless Modern
Technical Specifications
Sample Rates: 8 kHz - 48 kHz (Standard), up to 96 kHz (Pro)
Bit Rates: 32-320 kbps (Standard)
Channels: Mono, Stereo (Standard), 5.1/7.1 (Pro)
Codec: WMA Standard, WMA Pro, WMA Lossless
Container: ASF (.wma)
Sample Rates: 8 kHz - 192 kHz
Bit Depth: 8, 16, 24-bit integer
Channels: Mono, Stereo, Multichannel (up to 6)
Codec: TTA1 (adaptive prediction + Rice coding)
Container: Native TTA (.tta), Matroska (.mka)
Audio Encoding

WMA uses MDCT-based coding with bark-scale frequency analysis, optimized for the Windows platform:

# Encode to WMA at 192 kbps
ffmpeg -i input.wav -codec:a wmav2 \
  -b:a 192k output.wma

# WMA at 128 kbps
ffmpeg -i input.wav -codec:a wmav2 \
  -b:a 128k output.wma

TTA uses an adaptive prediction filter that models audio signals and encodes residuals with Rice/Golomb entropy coding for bit-perfect lossless compression:

# Encode WAV to TTA lossless
ffmpeg -i input.wav -codec:a tta output.tta

# Encode with specific sample format
ffmpeg -i input.wav -codec:a tta \
  -sample_fmt s16 output.tta
Audio Features
  • Metadata: ASF metadata attributes
  • DRM: Windows Media DRM support
  • Streaming: Windows Media Services streaming
  • Lossless: WMA Lossless variant available
  • Surround: WMA Pro supports 5.1/7.1
  • Low Bitrate: WMA Voice mode for speech
  • Metadata: ID3v1/ID3v2 tags supported
  • Album Art: Embedded via ID3v2 tags
  • Gapless Playback: Inherent - frame-accurate lossless
  • Streaming: Limited - not widely used for streaming
  • Seekable: Yes - frame-based seeking
  • Hardware Support: Supported by many portable players (Rockbox)
Advantages
  • Good quality at low bitrates
  • Native Windows integration
  • Lossless and multichannel variants
  • DRM support
  • Efficient speech mode (WMA Voice)
  • Wide Windows software support
  • Bit-perfect lossless compression with zero quality loss
  • Very fast encoding and decoding - real-time capable
  • Simple algorithm ideal for hardware and embedded players
  • Low memory footprint during encoding/decoding
  • Free and open-source codec (GPL license)
  • Good compression ratios comparable to FLAC
  • Supports multichannel audio up to 6 channels
Disadvantages
  • Proprietary Microsoft format
  • Declining usage and support
  • Not on Apple devices natively
  • No browser support
  • Outperformed by AAC and Opus
  • Limited software support compared to FLAC
  • Not natively supported by most web browsers
  • Smaller community than FLAC or ALAC
  • No streaming protocol support
  • Limited metadata capabilities vs FLAC
Common Uses
  • Legacy Windows Media libraries
  • Older Windows collections
  • Windows Media streaming (legacy)
  • DRM-protected music
  • Zune marketplace content
  • Lossless music archival and storage
  • Hardware audio player libraries (Rockbox)
  • Lossless audio distribution
  • Source for transcoding to lossy formats
  • CD ripping with lossless preservation
Best For
  • Converting legacy Windows collections
  • Windows-centric workflows
  • Very low bitrate speech
  • Legacy system compatibility
  • Audiophiles seeking fast lossless compression
  • Hardware players with TTA support
  • Archiving with minimal CPU usage
  • Environments where speed is critical
Version History
Introduced: 1999 (Microsoft)
Current Version: WMA 10 Pro
Status: Mature, declining usage
Evolution: WMA v1 (1999) → v2 (2000) → Pro/Lossless (2003) → WMA 10 (2006)
Introduced: 2004 (Alexander Djourik)
Current Version: TTA1 (single-stream)
Status: Stable, maintained open-source
Evolution: TTA1 (2004) → libtta (C library) → FFmpeg integration
Software Support
Media Players: Windows Media Player, VLC, foobar2000
Mobile: Android (limited), not iOS native
Encoders: FFmpeg (wmav2), Windows Media Encoder
Streaming: IIS Media Services (legacy)
Conversion: dBpoweramp, foobar2000, XMedia Recode
Media Players: foobar2000, VLC, AIMP, Deadbeef, Rockbox
Encoders: TTA encoder, FFmpeg, foobar2000
Mobile: Rockbox-based players, limited native support
DAWs: Limited - typically requires conversion first
Hardware: Rockbox-compatible players, some Cowon/iRiver

Why Convert WMA to TTA?

Converting WMA to TTA upgrades your lossy Windows Media Audio audio to the True Audio lossless container. While this conversion cannot restore audio data lost during the original WMA encoding, it wraps the decoded audio in a lossless format that prevents any further quality degradation during future editing or re-encoding operations.

WMA files use lossy compression that permanently discards audio data to achieve small file sizes. By converting to TTA, you create a lossless snapshot of the decoded WMA audio that can be edited, processed, and re-encoded without introducing additional generation loss. The TTA file will sound identical to the WMA source but in a lossless wrapper.

True Audio's fast encoding algorithm makes this conversion extremely quick. TTA can encode audio in real-time or faster on modern hardware. The resulting file will be larger than the WMA source (typically 3-5x for music content), but you gain the ability to work with the audio losslessly for any downstream processing.

This conversion is most valuable when you need to edit WMA audio without compounding quality loss, or when integrating WMA content into a TTA-based music library. Remember that the TTA output quality is limited by the WMA source. For best results, always start with the highest quality WMA files available.

Key Benefits of Converting WMA to TTA:

  • No Further Loss: Lossless TTA wrapper prevents additional quality degradation
  • Edit Safely: Process and re-encode without compounding WMA compression artifacts
  • Fast Processing: TTA encodes quickly with minimal CPU overhead
  • Format Flexibility: TTA can be converted to any target format without further loss
  • Library Integration: Add WMA content to TTA-based lossless collections
  • Quality Ceiling: Audio quality matches the original WMA source exactly
  • Re-encoding Base: Use TTA as an intermediate format for encoding to other targets

Practical Examples

Example 1: Lossless Archival from Lossy Source

Scenario: A user wants to create a lossless archive of their WMA music to prevent further quality loss from future re-encoding.

Source: song_collection/ (200 tracks, WMA, mixed bitrates)
Conversion: WMA → TTA (lossless wrap)
Result: song_collection/ (200 tracks, TTA, ~3x larger)

Workflow:
1. Convert WMA → TTA to freeze quality
2. Edit or process TTA files without generation loss
3. Re-encode TTA to any target format as needed
4. Original WMA quality preserved in lossless wrapper
5. No additional artifacts from re-encoding

Example 2: Audio Post-Processing Pipeline

Scenario: A sound designer receives WMA assets and needs to process them through multiple tools. Converting to TTA first prevents quality stacking.

Source: sound_effect.wma (30 sec, high quality)
Conversion: WMA → TTA (lossless wrap)
Result: sound_effect.tta (lossless, larger file)

Processing pipeline:
- Convert WMA → TTA once (preserves decoded audio)
- Apply noise reduction without re-compression
- Normalize levels in lossless domain
- Export final version to any format from TTA
- Single decode of WMA - no cumulative artifacts

Example 3: Format Migration for Editing

Scenario: A podcast editor receives recordings in WMA format and needs to convert to lossless before extensive editing.

Source: interview_raw.wma (45 min)
Conversion: WMA → TTA (lossless wrap)
Result: interview_raw.tta (lossless, ~400 MB)

Editing benefits:
- No generation loss during editing passes
- TTA's fast decode speeds timeline scrubbing
- Safe to cut, splice, rearrange without re-compression
- Export final edit to WMA or any format
- Only one lossy encode in entire workflow

Frequently Asked Questions (FAQ)

Q: Does converting WMA to TTA improve audio quality?

A: No. Converting WMA to TTA cannot restore audio data lost during WMA compression. The TTA file preserves the decoded WMA audio losslessly, preventing further degradation but not improving the source.

Q: Why choose TTA over FLAC or other lossless formats?

A: TTA excels in encoding/decoding speed and low CPU usage, making it ideal for hardware players and batch processing. While FLAC has broader ecosystem support, TTA's simplicity and real-time performance suit specific workflows where speed matters.

Q: How does TTA compression compare to FLAC?

A: TTA and FLAC achieve very similar compression ratios, typically 50-70% of original PCM size. TTA tends to encode and decode faster due to its simpler algorithm, while FLAC may achieve slightly better compression at higher levels.

Q: Will the WMA to TTA conversion change the file size?

A: Yes. TTA files will be significantly larger than WMA because TTA stores the decoded audio losslessly. Expect the TTA file to be 3-7x larger than the original WMA file.

Q: Can I play TTA files on my phone?

A: Native TTA support on mobile is limited. On Android, PowerAmp and Neutron Player support TTA. On iOS, VLC and other third-party players handle TTA files. For widest mobile compatibility, FLAC or ALAC may be more practical.

Q: Is TTA still actively maintained?

A: Yes. While TTA development is mature and stable, the libtta library and FFmpeg integration are maintained. The format specification is final and well-documented, ensuring long-term compatibility.

Q: How long does WMA to TTA conversion take?

A: The conversion is very fast. TTA encoding is real-time capable with minimal CPU usage. A typical 5-minute file converts in under a second on modern hardware.

Q: Can I convert TTA back to WMA later?

A: Yes. Since TTA preserves the decoded WMA audio losslessly, you can re-encode to WMA or any other format. The quality will match the original WMA source minus one additional lossy pass if targeting lossy.