📝 Documentation Updates
Updated README to document the ultra and maximum quality presets, and clarified quality preservation behavior to avoid misleading users about audio quality improvement.
What's Updated
Quality Preset Documentation:
Now properly documented with detailed specifications and accurate descriptions:
low- 64kbps, 22050Hz, mono (smallest file size)medium- 96kbps, 44100Hz, stereo (balanced quality/size)high- 128kbps, 48000Hz, stereo (premium audiobook quality)ultra- 192kbps, 48000Hz, stereo (for music/theatrical productions) ✨maximum- 256kbps, 48000Hz, stereo (near-lossless quality) ✨source- Auto-detect from source files (default)
Important Clarifications:
- Smart Quality Detection now accurately described as "preserves source audio quality"
- Clarified that quality presets are for reducing file size or standardizing libraries
- Added important note: Higher bitrate presets won't improve quality that doesn't exist in source
- Removed misleading language suggesting higher presets "improve" quality
Troubleshooting Section Updated:
# First, check your source file quality
ffmpeg -i input.mp3
# The default preserves source quality (no upsampling/downsampling)
audiobook-forge build --root /path --quality source
# Note: Using a higher quality preset won't improve quality
# that doesn't exist in the source filesKey Understanding:
The tool preserves whatever quality exists in your source files. If your source is already compressed (e.g., 64kbps), encoding at a higher bitrate won't improve quality - it will just create a larger file with the same audio quality.
Files Modified
README.md- Quality preset documentation and quality preservation clarificationsCHANGELOG.md- v2.6.3 entry updated with accurate description
Full Changelog: v2.6.2...v2.6.3