+# M4A/AAC
+# There are now 6 AAC encoders available to abcde, the default being
+# fdkaacenc. Note that the old AACENCOPTS has been rendered obsolete by
+# the following options, new to abcde 2.7:
+# 1. fdkaac: see 'fdkaac --help' and consider using
+# '--profile 2 --bitrate-mode 5 --afterburner 1'
+# for a good quality encode.
+#FDKAACENCOPTS='--bitrate 192k'
+# 2. FFmpeg: Use the following to use the FFmpeg native encoder, adding
+# -strict -2 if you have an older FFmpeg:
+# FFMPEGENCOPTS="-c:a aac -b:a 192k"
+# 3. neroAacEnc: see 'neroAacEnc -help' and
+# consider using '-q 0.65' for a good quality encode.
+#NEROAACENCOPTS=
+# 4. faac: see 'faac --long-help' and consider
+# using '-q 250' for a good quality encode.
+#FAACENCOPTS=
+# 5. qaac: simply run 'wine qaac.exe' to see all options and
+# consider using '--tvbr 100' for a good quality
+# encode or '--alac' for Apple Lossless Audio Codec
+#QAACENCOPTS=
+# 6. fhgaacenc: simply run 'wine fhgaacenc.exe' to see all options.
+# consider using '--vbr 4' for a decent quality encode.
+#FHGAACENCOPTS=
+
+# True Audio
+# This is a lossless format so no options of any note available:
+#TTAENCOPTS=
+
+# OPUS
+# For the encoder options look at: 'opusenc -h'
+#OPUSENCOPTS=
+
+# MP2
+# Currently uses either twolame or ffmpeg, for twolame options look at:
+# 'twolame --help',a highly recommended setting is "--bitrate 320".
+#TWOLAMENCOPTS=
+
+# FFmpeg or avconv can be used for several audio codecs, as well as being
+# the default encoder for the Matroska container mka::
+# 1. Encoding to WavPack (FFmpeg only: avconv does not have a native encoder).
+# Consider setting the following with a compression_level between 0-8:
+# FFMPEGENCOPTS="-c:a wavpack -compression_level 6"
+# 2. Encoding to ALAC (both FFmpeg and avconv have a native encoder).
+# Consider using the following for either FFmpeg and avconv:
+# FFMPEGENCOPTS="-c:a alac"
+# 3. Encoding to mp2
+# Consider using the following for either FFmpeg and avconv:
+# FFMPEGENCOPTS="-c:a mp2 -b:a 320k"
+#FFMPEGENCOPTS=
+
+# mp3 tagging:
+# There are three ways to tag MP3 files:
+# 1. id3v1 (with id3)
+# 2. id3v2.3 (with id3v2)
+# 3. id3v2.4 (with eyeD3) This is the default
+# Use ID3TAGV to select one of the older formats:
+#ID3TAGV=id3v2.4