
15.61 Raw PCM files 409
15.61 Raw PCM files
Raw PCM files is an Audio File format that includes no information about bit resolution
or sample rate. If you open a file in this format, WaveLab prompts you to specify the bit
resolution and sample rate. If this is not done correctly, the file will not play back as intended.
Note that the " " file type is WaveLab’s own temporary file format. If you experience a
computer crash you can try opening any stray " " files on your hard disk(s) to restore them.
Tyical file extensions are .raw, .bin, .pcm, .
Glossary contents
15.62 Red Book CD-DA
Red Book is the standard for audio CDs (Compact Disc Digital Audio, or CD-DA). Other
"Rainbow Books" in the series, known by the color of their covers, define the formats of
CD-ROMs, VCD, SACD and other compact disc formats. DVD and Blu-ray formats are not
defined in a Rainbow Book.
The first edition of the Red Book was released in 1980 by Philips and Sony and ratified as
IEC 60908. The standard is not freely circulated - from 2009 the IEC 60908 document
has been available as a PDF download for US 260. The Red Book specifies a compliant
CD-DA in great detail, including the physical properties of the CD, the digital audio encoding
(2-channel, signed 16-bit Linear Pulse Code Modulation, sampled at 44.1kHz), the modu-
lation system, the CIRC error-correction scheme and subcode channels. Data are stored in
sectors of 2352 bytes ("frames"), read at 75 frames/s. The bit rate is 1411.2kbits/s. Other
considerations are that the maximum number of tracks is 99, the minimum duration of a track
is 4 seconds (including a 2-second pause), the maximum playing time is 79.8 minutes, and
the ISRC should be included.
WaveLab provides Red Book-compliant CD mastering.
CD Frame
ISRC
Glossary contents
15.63 Regular Expressions
A Regular Expression (regex for short) is a formula composed of characters that have a
special meaning (called "operators"). A simple example is in using "∗.doc" to search for all
text documents in a file manager. In this case, the asterisk (star) character is an operator that
matches any string before the ".doc" in a filename. In addition to WaveLab, many software
applications, text editors (like EditPad Pro) and programming languages support regular ex-
pressions.
The characters ". [ ] ( ) { } ? ∗ + - | ! /
∧
" are operators in WaveLab's regular expression
engine. You can submit regular expressions in a WaveLab text box wherever you see the
icon. Clicking on the light bulb icon gives a fly-out menu listing special characters and
short cuts, to help you build a precise and well-formed expression.
There are many helpful web-based tutorials that explore the topic of regex.
WaveLab 7
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