Manual Reference Pages - PCMFADE (1)
pcmfade - create a fade-in or fade-out in a PCM file
0%-offset 100%-offset file
pcmfade can be used to create a fade-in
100%-offset) or a fade-out
100%-offset) in a raw PCM audio file.
The following operands are supported:
WARNING: The file is modified in-place. If the original file contents
need to preserved, you
must make a backup copy before using
Specify the file offset at which the volume should be
faded to 0% (i.e. silence).
Specify the file offset at which the volume should reach
the original level.
The file to work with. The file must be a raw PCM audio
file: linear signed 16 bits, stereo, 44.1 kHz, intel
byte order (little endian). This is
also known as CD quality audio format. It is created
File offsets can be specified in two ways: as time stamp,
or as sample count. Note: 1 sample = 4 bytes (16 bits left
and 16 bits right). In both cases, the offset can be
relative to the beginning of the file, or (if prefixed
with a minus sign) relative to the end of the file.
Thus, the offset syntax is:
If no sign is specified, the offset is assumed to be relative
to the beginning of the file. If a minus sign is present,
the offset is relative to the end of the file. For example,
if the length of the file is four minutes, -1:15 specifies
the same offset as 2:45.
is an integer value, which may be omitted. The default
value is 0. Note that the colon may
not be omitted, because it indicates the time stamp syntax.
if the colon is missing, the value is assumed to be a
sample count, not a time stamp.
is an integer or floating point value. It can be larger
than 60, for example 1:80 is the same as 2:20,
and :120.5 is the same as 2:00.5.
is an integer value (1 sample = 4 bytes). There are
44100 samples per second.
Yes. This is an alpha version.
Copyright (C) 1997-1999
Oliver Fromme <firstname.lastname@example.org>
All rights reserved. For more information, please refer
to the file LICENCE which is included with the source
Thats the homepage of the CD-DA reader
which also contains the latest version of
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