- Audio Preparation:
Audio file types:
Generally, a 16 bit / 44.1khz digital recording should be the
final audio brought to us on a compact disc. Other formats with
resolutions of 18 bit, 20 bit, 24 bit and 32 bit, with sampling
rates of 48khz, 88.2khz, 96khz and 192khz exist; however, they
require bit rate dithering and sample rate conversion to
ultimately be used for duplication or replication. So... ask
your engineer for a standard 16bit / 44.1khz file. Otherwise,
fees will be incurred for our services to create the necessary
files for copying.
sequencing: Make sure the disc you have is properly
sequenced, i.e. all the audio tracks are in the proper and
numbered order that you want on your duplicated or replicated
copies. We can change the order for you, but this also will
also incur studio time. The tracks should be encoded with index
or I.D. numbers for CD or DVD player reading.
Audio file fades:
Tracks that sound professional also have smooth "fades" at
their endings. Jittery fades practically never do justice to
the end product. A nice, smooth reduction in volume at the end
of the track sounds pleasing to the ear. Crossfades can also be
performed where one desires to blend the end of one track into
the beginning of the next track.
Audio file sound
quality: CDmaster recommends having your final audio
"mastered" to help: 1. Achieve a consistency of volume
between all the tracks on the disc. 2. Continuity and
usually an enhanced quality to the sound of the audio. 4.
Corrective audio processing to help alleviate distortion causing
peaks and certain clicks, hums, etc., that may be apparent in
various areas. 5. The insertion of "digital black" for
quiet spaces between tracks and technical preparation with "subcodes"
recorded for replication and duplication requirements. Your new
final disc will be what is known in the industry as a "mastered
CD". CDmaster has an excellent reputation for mastering our
We recommend that
you have a copy or backup of the audio disc you bring to us in
the unlikely event that is lost or damaged during the
production. CDmaster will be happy to make you a free backup if
you would like, just ask for ,and fill out our request form
during your CD duplication or replication order. We will
require your signature for authorization to do this.
and paper insert printing:
Do to the numerous
options and file types for the various printing processes, we
ask that you contact one of our representatives by phone for
specific printing requirements.
Typical files for
disc "face" printing are high resolution (300dpi) jpegs or
bitmaps. These work well for our in-house thermal and inkjet
printers. Silk screening files can also be jpegs of the above
resolution or higher. It's best to provide these files on a CD
or floppy disc.
Insert and traycard
files can be generated in Adobe Illustrator, Adobe Photoshop, or
Quark Express. Other programs may be compatible, just give us a
call and we'll cross reference file types for you.