oggenc(1) Vorbis Tools 1.0 oggenc(1)NAMEoggenc - encode audio into the Ogg Vorbis format
SYNOPSISoggenc [ -hrQ ] [ -B raw input sample size ] [ -C raw
input number of channels ] [ -R raw input samplerate ] [
-b nominal bitrate ] [ -m minimum bitrate ] [ -M maximum
bitrate ] [ -q quality ] [ --resample frequency ] [
--downmix ] [ -s serial ] [ -o output_file ] [ -n pattern
] [ -c extra_comment ] [ -a artist ] [ -t title ] [ -l
album ] [ -G genre ] input_files ...
DESCRIPTIONoggenc reads audio data in either raw, WAV, or AIFF format
and encodes it into an Ogg Vorbis stream. If the input
file "-" is specified, audio data is read from stdin and
the Vorbis stream is written to stdout unless the -o
option is used to redirect the output. By default, disk
files are output to Ogg Vorbis files of the same name,
with the extension changed to ".ogg". This naming conven
tion can be overridden by the -o option (in the case of
one file) or the -n option (in the case of several files).
Finally, if none of these are available, the output file
name will be the input filename with the extension (that
part after the final dot) replaced with ogg, so file.wav
will become file.ogg
OPTIONS-h, --help
Show command help.
-r, --raw
Assume input data is raw little-endian audio data
with no header information. If other options are
not specified, defaults to 44.1kHz stereo 16 bit.
See next three options for how to change this.
-B n, --raw-bits=n
Sets raw mode input sample size in bits. Default is
16.
-C n, --raw-chan=n
Sets raw mode input number of channels. Default is
2.
-R n, --raw-rate=n
Sets raw mode input samplerate. Default is 44100.
--raw-endianness n
Sets raw mode endianness to big endian (1) or lit
tle endian (0). Default is little endian.
-Q, --quiet
Quiet mode. No messages are displayed.
-b n, --bitrate=n
Sets encoding to the bitrate closest to n (in
kb/s).
-m n, --min-bitrate=n
Sets minimum bitrate to n (in kb/s).
-M n, --max-bitrate=n
Sets maximum bitrate to n (in kb/s).
--managed
Set bitrate management mode. This turns off the
normal VBR encoding, but allows hard or soft
bitrate constraints to be enforced by the encoder.
This mode is much slower, and may also be lower
quality. It is primarily useful for creating files
for streaming.
-q n, --quality=n
Sets encoding quality to n, between -1 (low) and 10
(high). This is the default mode of operation, with
a default quality level of 3. Fractional quality
levels such as 2.5 are permitted. Normal quality
range is 0 - 10.
--resample n
Resample input to the given sample rate (in Hz)
before encoding. Primarily useful for downsampling
for lower-bitrate encoding.
--downmix
Downmix input from stereo to mono (has no effect on
non-stereo streams). Useful for lower-bitrate
encoding.
--advanced-encode-option optionname=value
Sets an advanced option. See the Advanced Options
section for details.
-s, --serial
Forces a specific serial number in the output
stream. This is primarily useful for testing.
-o output_file, --output=output_file
Write the Ogg Vorbis stream to output_file (only
valid if a single input file is specified)
-n pattern, --names=pattern
Produce filenames as this string, with %a, %t, %l,
%G replaced by artist, title, album respectively
(see below for specifying these). Also, %% gives a
literal %.
-c comment, --comment comment
Add the string comment as an extra comment. This
may be used multiple times, and all instances will
be added to each of the input files specified.
-a artist, --artist artist
Set the artist comment field in the comments to
artist.
-G genre, --genre genre
Set the genre comment field in the comments to
genre.
-d date, --date date
Sets the date comment field to the given value.
This should be the date of recording.
-N n, --tracknum n
Sets the track number comment field to the given
value.
-t title, --title title
Set the track title comment field to title.
-l album, --album album
Set the album comment field to album.
Note that the -a, -t, and -l options can be given multiple
times. They will be applied, one to each file, in the
order given. If there are fewer album, title, or artist
comments given than there are input files, oggenc will
reuse the final one for the remaining files, and issue a
warning in the case of repeated titles.
ADVANCED ENCODER OPTIONS
Oggenc allows you to set a number of advanced encoder
options using the --advanced-encoder-option option. These
are intended for very advanced users only, and should be
approached with caution. They may significantly degrade
audio quality if misused. Not all these options are cur
rently documented.
bitrate_average_window=NN
Set the managed bitrate window to NN seconds. The
bitrate will be forced to the specified average
over a floating window of this length. May be frac
tional (e.g. 3.5)
lowpass_frequency=NN
Set the lowpass frequency to NN kHz.
EXAMPLES
Simplest version. Produces output as somefile.ogg:
oggenc somefile.wav
Specifying an output filename:
oggenc somefile.wav -o out.ogg
Specifying a high-quality encoding averaging 256 kbps (but
still VBR).
oggenc infile.wav -b 256 out.ogg
Specifying a maximum and average bitrate, and enforcing
these.
oggenc infile.wav --managed -b 128 -M 160 out.ogg
Specifying quality rather than bitrate (to a very high
quality mode)
oggenc infile.wav -q 6 out.ogg
Downsampling and downmixing to 11 kHz mono before encod
ing.
oggenc--resample 11025 --downmix infile.wav -q 1
out.ogg
Adding some info about the track:
oggenc somefile.wav -t "The track title" -a "artist
who performed this" -l "name of album" -c "OTHER
FIELD=contents of some other field not explictly
supported"
This encodes the three files, each with the same
artist/album tag, but with different title tags on each
one. The string given as an argument to -n is used to gen
erate filenames, as shown in the section above. This exam
ple gives filenames like "The Tea Party - Touch.ogg":
oggenc-b 192 -a "The Tea Party" -l "Triptych" -t
"Touch" track01.wav -t "Underground" track02.wav -t
"Great Big Lie" track03.wav -n "%a - %t.ogg"
Encoding from stdin, to stdout (you can also use the vari
ous tagging options, like -t, -a, -l, etc.):
oggenc-
AUTHORS
Program Author:
Michael Smith <msmith@labyrinth.net.au>
Manpage Author:
Stan Seibert <indigo@aztec.asu.edu>
BUGS
Reading type 3 wav files (floating point samples) probably
doesn't work other than on intel (or other 32 bit, little
endian machines).
SEE ALSOogg123(1)
2002 July 19 oggenc(1)
