refalac 1.58 Usage: refalac [options] infiles.... "-" as infile means stdin. Main options: --fast Fast stereo encoding mode. -d Output directory. Default is current working dir. --check Show library versions and exit. -A, --alac ALAC encoding mode -D, --decode Decode to a WAV file. --caf Output to CAF file instead of M4A/WAV/AAC. --play Decode to a WaveOut device (playback). -r, --rate keep: output sampling rate will be same as input if possible. auto: output sampling rate will be automatically chosen by encoder. n: desired output sampling rate in Hz. --lowpass Specify lowpass filter cut-off frequency in Hz. Use this when you want lower cut-off than Apple default. -b, --bits-per-sample Bits per sample of output (for WAV/ALAC only) --no-dither Turn off dither when quantizing to lower bit depth. --peak Scan + print peak (don't generate output file). Cannot be used with encoding mode or -D. When DSP options are set, peak is computed after all DSP filters have been applied. --gain Adjust gain by f dB. Use negative value to decrese gain, when you want to avoid clipping introduced by DSP. -N, --normalize Normalize (works in two pass. can generate HUGE tempfile for large piped input) --drc Dynamic range compression. Loud parts over threshold are attenuated by ratio. thresh: threshold (in dBFS, < 0.0) ratio: compression ratio (> 1.0) knee: knee width (in dB, >= 0.0) attack: attack time (in millis, >= 0.0) release: release time (in millis, >= 0.0) --limiter Apply smart limiter that softly clips portions where peak exceeds (near) 0dBFS --start <[[hh:]mm:]ss[.ss..]|s|f> Specify start point of the input. You specify either in seconds(hh:mm:ss.sss..form) or number of samples followed by 's' or cuesheet frames(mm:ss:ff form) followed by 'f'. Example: --start 4010160s : start at 4010160 samples --start 1:30:70f : same as above, in cuepoint --start 1:30.93333 : same as above --end <[[hh:]mm:]ss[.ss..]|s|f> Specify end point of the input (exclusive). --delay <[[hh:]mm:]ss[.ss..]|s|f> Specify amount of delay. When positive value is given, silence is prepended at the begining to achieve specified amount of delay. When negative value is given, specified length is dropped from the beginning. --no-delay Compensate encoder delay by prepending 960 samples of scilence, then trimming 3 AAC frames from the beginning (and also tweak iTunSMPB). This option is mainly intended for resolving A/V sync issue of video. --num-priming (Experimental). Set arbitrary number of priming samples in range from 0 to 2112 (default 2112). Applicable only for AAC LC. --num-priming=0 is the same as --no-delay. Doesn't work with --no-smart-padding. --gapless-mode Encoder delay signaling for gapless playback. 0: iTunSMPB (default) 1: ISO standard (elst + sbgp + sgpd) 2: Both --matrix-preset Specify user defined preset for matrix mixer. --matrix-file Matrix file for remix. --no-matrix-normalize Don't automatically normalize(scale) matrix coefficients for the matrix mixer. --chanmap Rearrange input channels to the specified order. Example: --chanmap 2,1 -> swap L and R. --chanmap 2,3,1 -> C+L+R -> L+R+C. --chanmask Force input channel mask(bitmap). Either decimal or hex number with 0x prefix can be used. When 0 is given, qaac works as if no channel mask is present in the source and picks default layout. --no-optimize Don't optimize MP4 container after encoding. --tmpdir Specify temporary directory. Default is %TMP% -s, --silent Suppress console messages. --verbose More verbose console messages. -i, --ignorelength Assume WAV input and ignore the data chunk length. --threading Enable multi-threading. -n, --nice Give lower process priority. --sort-args Sort filenames given by command line arguments. --text-codepage Specify text code page of cuesheet/chapter/lyrics. Example: 1252 for Latin-1, 65001 for UTF-8. Use this when bogus values are written into tags due to automatic encoding detection failure. -S, --stat Save bitrate statistics into file. --log Output message to file. Option for output filename generation: --fname-from-tag Generate filename based on metadata of input. By default, output filename will be the same as input (only different by the file extension). Name generation can be tweaked by --fname-format. --fname-format Format string for output filename. Option for single output: -o Specify output filename --concat Encodes whole inputs into a single file. Requires output filename (with -o) Option for cuesheet input only: --cue-tracks Limit extraction to specified tracks. Tracks can be specified with comma separated numbers. Hyphen can be used to denote range of numbers. Tracks non-existent in the cue are just ignored. Numbers must be in the range 0-99. Example: --cue-tracks 1-3,6-9,11 -> equivalent to --cue-tracks 1,2,3,6,7,8,9,11 --cue-tracks 2-99 -> can be used to skip first track (and HTOA) Options for Raw PCM input only: -R, --raw Raw PCM input. --raw-channels Number of channels, default 2. --raw-rate Sample rate, default 44100. --raw-format Sample format, default S16L. Sample format spec: 1st char: S(igned) | U(nsigned) | F(loat) 2nd part: Bitwidth Last part: L(ittle Endian) | B(ig Endian) Last part can be omitted, L is assumed by default. Cases are ignored. u16b is OK. Tagging options: (same value is set to all files, so use with care for multiple files) --title --artist --band This means "Album Artist". --album --grouping --composer --comment --genre --date --track --disk --compilation[=0|1] By default, iTunes compilation flag is not set. --compilation or --compilation=1 sets flag on. --compilation=0 is same as default. --lyrics --artwork --artwork-size Specify maximum width or height of artwork in pixels. If specified artwork (with --artwork) is larger than this, artwork is automatically resized. --copy-artwork Copy front cover art(APIC:type 3) from the source. When --artwork is also given, this option is ignored. --chapter Set chapter from file. --tag : Set iTunes pre-defined tag with fourcc key and value. 1) When key starts with U+00A9 (copyright sign), you can use 3 chars starting from the second char instead. 2) Some known tags having type other than UTF-8 string are taken care of. Others are just stored as UTF-8 string. --tag-from-file : Same as above, but value is read from file. --long-tag : Set long tag (iTunes custom metadata) with arbitrary key/value pair. Value is always stored as UTF8 string.

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