Improve "Getting Started" readme section

README.md

@@ -45,24 +45,19 @@ Scan a root directory for audiobook folders and convert them to M4B files in par
 
 ## Getting Started
 
-Ensure the following dependencies are installed: [ffmpeg](https://ffmpeg.org) and [mp4v2](https://mp4v2.org/).
+The following tools must be installed and available in `PATH`:
 
-```bash
-# For RPM-based systems (Fedora, RHEL, CentOS)
-sudo dnf install ffmpeg libmp4v2
-
-# For Debian-based systems (Ubuntu, Debian)
-sudo apt install ffmpeg
-```
+- [ffmpeg](https://ffmpeg.org) *(optionally with [libfdk_aac](https://github.com/mstorsjo/fdk-aac) for higher-quality VBR encoding)*
+- [mp4v2](https://mp4v2.org/) *(mp4chaps, mp4art)*
+- [awk](https://linux.die.net/man/1/awk), [sed](https://linux.die.net/man/1/sed), [bc](https://linux.die.net/man/1/bc)
 
-To install the scripts, run:
+*Installation:*
 
 ```bash
+# Installs to /usr/local/sbin/
 make install
 ```
 
-This installs the scripts to `/usr/local/sbin/`.
-
 ## m4bify
 
 `m4bify` creates M4B audiobook by processing files in the specified directory, sorting them alphabetically to ensure the correct playback order. Chapters can be organized either as file-based, where each audio file becomes its own chapter named using metadata or filenames, or directory-based, where each top-level subdirectory is treated as a chapter, combining all its audio files, including those in nested folders, into one.
@@ -86,7 +81,7 @@ m4bify [--help] [-d | --chapters-from-dirs] [-b <bitrate> | --bitrate <bitrate>]
 - `-d`, `--chapters-from-dirs`: Treats each top-level subdirectory as a chapter.
 - `-b <value>`, `--bitrate <value>`: Sets the audio encoding bitrate. Supported values:
   - `<num>k` - Fixed bitrate (e.g. "32k", "128k")
-  - `vbr` - VBR Very High
+  - `vbr` - VBR Very High *(default)*
   - `alac` - [Apple Lossless Audio Codec](https://en.wikipedia.org/wiki/Apple_Lossless_Audio_Codec)
 - `--help`: Displays usage instructions and exits.
 

m4bify.sh

@@ -40,7 +40,7 @@
 # - mp4chaps     For adding chapter metadata to the final M4B file.
 # - mp4art       For adding in a cover image to the final M4A file before converting it to M4B.
 
-readonly VERSION="v0.3.7"
+readonly VERSION="v0.3.8"
 
 # Color schema for pretty print
 readonly NC='\033[0m'           # No Color
@@ -177,6 +177,12 @@ function print_usage {
   echo -e "    ${COLORS[CMD]}ffprobe${NC}      - Used for analyzing audio file properties."
   echo -e "    ${COLORS[CMD]}mp4chaps${NC}     - Needed for chapter metadata manipulation."
   echo -e "    ${COLORS[CMD]}mp4art${NC}       - Adds cover image to audio book."
+  echo -e "    ${COLORS[CMD]}awk${NC}          - Text processing."
+  echo -e "    ${COLORS[CMD]}sed${NC}          - Stream editing."
+  echo -e "    ${COLORS[CMD]}bc${NC}           - Arithmetic operations."
+  echo -e ""
+  echo -e "  Optional:"
+  echo -e "    ${COLORS[CMD]}libfdk_aac${NC}   - Enables higher-quality VBR encoding (via ffmpeg)."
   echo -e ""
 }
 

m4bulk.sh

@@ -46,7 +46,7 @@
 # - Logs for each audiobook conversion will be saved in the same directory as the source audiobooks.
 # - Customize worker threads and m4bify options to optimize for system resources and project requirements.
 
-readonly VERSION="v0.3.7"
+readonly VERSION="v0.3.8"
 
 # Color schema for pretty print
 readonly NC='\033[0m'           # No Color