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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 con-
       tainer 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 con-
       tainer, 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
       bitrate 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 automat-
	      icaly 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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