Encoders in TNT Plus

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