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ATRACDENC(1)			   User Manual			    ATRACDENC(1)

NAME
     atracdenc - encode to or decode from ATRAC family formats

SYNOPSIS
     atracdenc	[options]  {-e <codec> | -encode=<codec> | -d | -decode} -i <in>
     -o <out>

DESCRIPTION
     atracdenc is an audio converter that can  encode  into  ATRAC1,  ATRAC3  or
     ATRAC3PLUS compatible format and decode from ATRAC1.

     For ATRAC1 (also known as ATRAC SP on MiniDisk devices) AEA audio container
     is used. Only one bitrate (292 kbit/s) is specified.

     For  ATRCA3 (also known as ATRAC LP on MiniDisk devices) OMA, AT3(riff) and
     RealMedia container is supported. In the case of  OMA  and  AT3  container,
     compatible  bitrates  are 66150 (LP4), 104738 and 132300 (LP2) bits/s.  The
     RealMedia container supports 66150, 93713, 104738, 132300, 146081,  176400,
     264600 and 352800 bits/s.

     For  ATRAC3PLUS  currently only OMA container is supported with highest bi-
     trate 352800 bits/s

OPTIONS
     -h     Display help.

     -i     Path to the input file. In case of encoding it should be  WAV,  AIFF
	    or SND 44100 Khz 16 bit PCM file. Use - to read from stdin.

     -o     Path to the output file. The container format is chosen automaticaly
	    according to the file extension.

     -e <codec>
	    Encode  mode. <codec> is a codec name must be one of atrac1, atrac3,
	    atrac3_lp4 or atarc3plus

     --encode=<codec>
	    Alias for -e.

     -d     Decode mode. Only ATRAC1 is supported.

     --decode
	    Alias for -d.

     --bitrate
	    Specify using bitrate (kbit/s). It make sense only for ATRAC3.

     ADVANCED OPTIONS

     --bfuidxconst
	    Set constant amount of used BFU (ATRAC1, ATRAC3).

     --bfuidxfast
	    Enable fast search of BFU amount (ATRAC1).

     --notransient[=mask] (ATRAC1)
	    Disable transient detection and use an optional mask  to  set  bands
	    with a forced short MDCT window.

     EXAMPLES

     ATRAC1 compatible encoding

	    atracdenc -e atrac1 -i in.wav -o out.aea

     ATRAC3 LP2 compatible encoding

	    atracdenc -e atrac3 -i in.wav -o out.oma

     ATRAC3 LP4 compatible encoding (low quality)

	    atracdenc -e atrac3_lp4 -i in.wav -o out.oma

     ATRAC3 + RealAudio container + max supported bitrate

	    atracdenc -e atrac3 --bitrate=344 -i in.wav -o out.rm

     ATRAC3PLUS compatible encoding

	    atracdenc -e atrac3plus -i in.wav -o out.oma

atracdenc 0.2.0 		   16 Jun 2025			    ATRACDENC(1)

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