Encoders in TNT Plus
TNT includes industry-standard encoders for each format.
AAC (Advanced Audio Coding)
Type: Lossy compression achieving transparent quality at high bitrates
Encoders:
- Fraunhofer FDK-AAC (all platforms): Industry-standard reference encoder
- Apple AudioToolbox AAC (macOS only): Hardware-accelerated encoder for Apple Silicon
Bitrate: 256 kbit/s in Simple Mode (maximum 512 kbit/s). Encoding artifacts disappear at 320 kbit/s. File Size: 30 seconds at 256 kbit/s = ~1 MB
Opus Interactive Audio Format
Type: Open-source lossy compression with low algorithmic delay
Best For: Live applications and voice content (optimized for speech in TNT) Bitrate: 12-510 kbit/s (minimum 6 kbit/s, UI-limited to 12 kbit/s)
FLAC (Free Lossless Audio Codec)
Type: Lossless compression preserving original audio data
Best For: Archiving and digital delivery requiring perfect fidelity File Size: 40-60% of uncompressed PCM
LAME / MPEG-I Layer 3 (MP3)
Type: Lossy compression with universal compatibility
Best For: Devices that cannot decode AAC or Opus Quality: Less efficient than AAC or Opus at low bitrates; usable at high bitrates (>320 kbit/s) File Size: 30 seconds at 160 kbit/s = 0.6 MB
PCM (Pulse Code Modulation) / WAV
Type: Uncompressed audio data (WAV container)
Settings
Sample Rate: 44.1, 48, 88.2, 96, or 192 kHz (samples per second)
Bit Depth: 16, 24, 32, or 64-bit (precision per sample; 32/64 are floating-point) File Size: 30 seconds at 48 kHz/24-bit = 8.64 MB
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