What is TTA?

True Audio (TTA) is a free, real-time lossless audio codec that provides efficient compression without compromising audio quality.

What is GSM?

GSM 06.10 is a lossy speech codec used in GSM mobile phone networks for compressing voice calls into low bitrates.

When Should You Use TTA vs GSM?

TTA vs GSM: Key Differences

• •TTA and GSM diverge on compression: lossless compression for the source, lossy compression for the target.
• •Converting from TTA to GSM changes compression type: lossy source becomes smaller but with some quality tradeoff.
• •How transparency is handled: GSM does not support alpha channels — transparent areas in the source will become opaque.
• •TTA files are typically 40-50% smaller than WAV while GSM files range Very small, 13kbps bitrate
• •Primary audience: TTA is built for lossless audio compression, archival scenarios, while GSM focuses on mobile voice, legacy phone recordings, voicemail — pick the format that matches your output requirement.

Advantages of TTA

• ✓At its core, TTA relies on lossless encoding — a design choice that makes it perfect for Lossless audio compression, archival.
• ✓You won't run into compatibility issues with TTA — it's a universal standard across platforms.
• ✓File size management with TTA: larger files guaranteed to match the original exactly.
• ✓Every major application in the Lossless audio compression, archival space supports TTA natively.

Advantages of GSM

• ✓GSM applies lossy compression specifically calibrated for Mobile voice, legacy phone recordings, voicemail.
• ✓GSM enjoys broad native support across operating systems, browsers, and creative tools alike.
• ✓GSM delivers impressive compression ratios, shrinking files dramatically while keeping visual quality high.
• ✓You will find GSM support built into virtually every tool that handles Mobile voice, legacy phone recordings, voicemail — no plugins or converters needed.

Common Use Cases for TTA to GSM Conversion

• Guided meditation recordings
• Audiovisual installation
• Music education
• Conference call recordings
• Field recording preservation
• Music production and mixing

Industry Applications

Best Practices for TTA to GSM Conversion

• →Converting TTA to GSM: GSM uses lossy compression — choose a higher bitrate (320 kbps) for near-CD quality
• →Normalize audio levels before conversion for consistent playback volume
• →GSM excels in professional audio workflows
• →Always keep a backup of your original files before converting
• →Choose the appropriate quality settings for your specific use case

Related Article

Troubleshooting TTA to GSM Conversion

• !Clicks or pops in the converted GSM → sample rate conversion can introduce artifacts; use a clean multiple of the source rate
• !GSM file has silence at the beginning or end → trim the source TTA file before converting to avoid unnecessary padding
• !Stereo image collapsed after converting TTA to GSM → verify that the converter preserves channel mapping for multichannel audio
• !The converted GSM clips or distorts at peaks → reduce the gain or apply a limiter before conversion to prevent hard clipping

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