NAME

atracdenc - encode to or decode from ATRAC format

SYNOPSIS

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

DESCRIPTION

atracdenc is an audio converter that can encode into ATRAC1 or ATRAC3 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.

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_lp2, atrac3_lp4.

--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]

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