|
Field
of Dreams
by
Gino Robair
|
The number of hard-disk recorders on the market continues to grow,
and there is a recorder for every task and almost every budget.
The winner is the musician who has a personal studio, because a
powerful recording system is easily within his or her grasp.
But
how do you sort through the terrifying array of options? Simply
ask the right questions. This article will show you how to narrow
down your search and pick the recorder that's right for you.
THE
FIRST STEP'S A DOOZY
It's natural to want what you see in the four-color ads. But before
you make that impulse buy, a bit of self-evaluation is in order.
Buying the right recorder requires thought, research, and lots of
patience. It's difficult to put off your shopping spree, but the
more you know about your individual needs and tastes, the more likely
you'll purchase the perfect system — the first time.
A
hard-disk recorder can be used as an entity unto itself, or it can
exist as part of a larger studio system. The products are as individual
as the people who will use them, so it's just a matter of finding
the perfect match. For example, the film composer who wants to sync
sequenced MIDI instruments to audio tracks will have different needs
from the classical guitarist who merely wants to document his playing
in the studio and onstage.
Hard-disk
recorders fall into three categories: the computer-based digital-audio
workstation (DAW) that combines hardware I/O and a software interface;
the personal digital studio (PDS), which includes a mixing surface
and effects; and the modular hard-disk recorder (M-HDR), which is
a stand-alone recorder. Each format offers nonlinear, random-access
recording; nondestructive editing (sometimes with unlimited undos);
and sync capabilities that don't require you to waste an audio track.
The
defining characteristics of each format go beyond the recording
and editing capabilities. The interface of each recorder helps determine
the unit's suitability for certain tasks, but size, features, and
adaptability — not to mention your own style of working —
also play an important role.
PERSONALITY
AND STYLE
Recordists often fit somewhere between two basic personality types.
At one end is the person whose main goal is to get the new system
up and running quickly, with as little downtime as possible. Such
people are satisfied with what today's technology offers and will
be happy with a system that is stable, is easy to use, and serves
their immediate needs. The expansion capabilities of the recording
system are unimportant. In fact, these users will avoid most upgrades
and expansion in order to keep the system stable. That makes sense
for anyone whose livelihood rides on a dependable system.
At
the other end of the spectrum are the people to whom the technology
itself is as important as the music. These people want a system
that can expand and grow with their needs and with the technology.
In fact, the ability to totally customize the recording setup is
a big plus. For someone in this camp, a closed system, such as a
PDS, may not be a good choice, because it offers little or no expandability.
This mind-set almost certainly guarantees the need for future investments
in gear, such as a faster computer, which leads to plug-in and software
upgrades.
The
above examples are indeed extreme, and users will likely place themselves
somewhere between the personality types. But knowing which traits
you relate to is helpful, because manufacturers design products
with either — or both — of these potential users in
mind.
20
QUESTIONS … AT LEAST
It's
time to determine what you need to make music now and in the future.
Don't let this seemingly endless list of questions intimidate you;
you may already know the answers!
Although
many of the questions that follow seem obvious, be careful not to
rush through them — especially the ones that are closely related.
Evaluating your answers in order and one at time is the key to a
successful purchase. Answering all of them will help you view your
options from different angles. In addition, write down your answers
as you go. That will help you remember minor details and give you
a place to explore new questions as they arise.
I
will mention specific products to clarify ideas throughout; please
do not construe those mentions as product endorsements. To seea
comprehensive list of what's available in hard-disk recorders, visit
EM's Personal Studio Buyer's Guide, 2003, online.
What
kind of work will you do? Will you be scoring for picture? Recording
your band's CD? Making music for computer games? Your immediate
and future needs will determine the system you choose. The more
you know about your plans, the easier it will be to pick the system
that's right for you; each type of hard-disk recorder has its own
strengths and weaknesses, and you want to make sure the recorder
you choose will do what you need it to.
If
your requirements seem to point toward a DAW-based virtual studio,
for example, where all recording, sequencing, and processing are
done in software, then choose a software package that does what
you need. Occasionally, that will narrow down the options for computer
platform, I/O, drivers, and plug-in formats.
On
the other hand, if you want a DAW based around a hardware control
surface and your software needs are simple, check out controllers
first. Most control surfaces come bundled with a lite version of
one of the popular music applications, which allows you to get up
and running fairly quickly. Starting with a lite version is also
a good way to find out if an application suits your music-making
style before you spring for the full version. If you're on a very
tight budget, you'll need to decide whether it's more important
to have the software you really want or buy a control surface right
away and live with the bundled lite software until you can afford
to move up.
What
is the destination? Is your music destined for the Web, for film,
for CD, or for DVD? Do you want a system that lets you record, mix,
and master your music, and spits out a CD-R when you're done? Does
the CD-R need to be fully compliant with the Red Book standard,
or do you want it to contain standardized files, such as WAV or
MP3? Knowing the final delivery format for your music will help
you determine your data-resolution needs.
Perhaps
you want the ability to record and edit basic tracks at the highest
audio quality possible, with the intention of using a commercial
facility for overdubbing, mixing, or mastering. In that case, data
format and compatibility are important factors to consider.
How
many audio tracks do you need? It's easy to underestimate the number
of tracks you'll need, especially if you've never used a hard-disk
recorder. Unlike analog and digital tape-based devices, some hard-disk
recorders offer virtual tracks, which allow you to record more than
the specified track count: you just can't play them back all at
once. You can record multiple passes of a solo to virtual tracks,
for example, and then choose the best of the bunch. Of course, the
more tracks you have, the more tracks you are likely to use.
Another
question to ask yourself is how many channels you need in order
to move between devices in your studio. Will you have the connections
to do that? Are they built in to the device you are buying, or do
you have to purchase additional I/O cards? This is especially important
if you plan to move high-resolution multitrack audio between, say,
a digital mixer and your recorder.
What
data resolution and sound quality do you want? The factors that
affect the sound quality of digital recorders include the converters,
the data resolution (bit depth and sampling rate), and the use of
data compression. But sound quality is not determined by numbers
alone. Like any product, digital converters vary in quality, and
you may have to pay a little more for your interface to get the
sound quality you want.
Although
the Red Book standard for CD — 16-bit, 44.1 kHz — is
still the most prevalent commercial delivery format, there are plenty
of reasons to record at higher or lower resolutions. If your music
is destined for DVD, for example, you might choose a recorder that
supports 24-bit, 96 kHz resolution. (Some even promise 192 kHz and
higher.) If you're creating music for games or the Web, you want
a system that lets you easily create files that don't take up much
bandwidth.
High-resolution
audio comes with its own set of concerns. On most systems, recording
at high sampling rates lowers the track count. Typically, a recorder
that offers 24 tracks at 16-bit/48 kHz, will give you 12 tracks
at 24-bit/48 kHz, and 6 tracks at 24-bit/96 kHz.
In
addition, the greater the bit depth and sampling rate, the more
disk space you'll need. Your hard drive will begin looking smaller
once you store 24 channels of 24-bit, 96 kHz data on it.
Finally,
moving multiple channels of 24-bit, 96 kHz audio between, say, an
M-HDR and a digital mixer is not a trivial matter. Interfacing your
system with the outside world will require specific I/O cards and
a suitable clocking setup so that you don't degrade the audio quality
you spent so much money to capture.
At
the other end of the resolution spectrum is data compression. Compressed
files take up less space on a disk, which results in more recording
time. The trade-off, of course, is reduced audio quality, and each
compression scheme sounds different. Some of the Roland PDSs, for
example, offer as many as six compression schemes. The trick is
to use the data compression that suits the project. Some kinds of
music — particularly those with high levels and a small dynamic
range — tolerate data compression better than others.
What
sorts of instruments will you record? Will you record acoustic instruments
or voices that require mics and preamps; line- or instrument-level
electronic instruments; or a combination of these? Knowing what
you plan to record will help you determine the kinds of I/O you
need (XLR, balanced ¼-inch, RCA, and so on), and it may further
clarify your needs in terms of audio quality (see the sidebar “Two
Exercises”).
How
many tracks do you want to record simultaneously? Just because a
hard-disk recorder is a 16-track machine doesn't mean it can record
all 16 tracks at once. If you answered the previous question, you
already know the kinds of inputs you'll need. Now you need to determine
which ones you'll use at once. The more tracks you want to record
simultaneously, the more you can expect to pay for your system.
What
are your editing needs? Every hard-disk recorder gives you tools
for moving sections of a file. If all you need is a way to rearrange
parts of a song, you will be satisfied with the editing capabilities
of any system you choose. On the other hand, if you need the ability
to edit waveforms at the sample level, your system choices narrow
down considerably.
Do
you need a sequencer? If you do need a sequencer, how do you plan
to use it? As a fancy metronome for laying down tracks? As inspiration
for songwriting? Or will it be the main focus of your music? If
you want an integrated recording and sequencing setup, you've again
narrowed down your list of system choices.
But
just because you want to use a sequencer doesn't mean you have to
go with a computer-based digital audio sequencer. A number of PDSs,
for example, include internal sounds and offer basic sequencing
and looping capabilities. The trick is to determine the level of
sequencing you need, whether it's simple loop-based song assembly
or full control of the deeper aspects of MIDI, such as event lists
and Control Change messages.
How
will you use MIDI? MIDI is not just for playing instruments. It
can be used for controlling effects, starting and stopping machines,
and automating fader levels. Do you want a recorder than can act
as master and slave to the other devices in your studio? If you
have a digital mixer and want to supplement it with a hard-disk
recorder (so you can engage the recorder's transport controls remotely,
for example), choose an M-HDR that supports MIDI Time Code (MTC)
and MIDI Machine Control (MMC).
Do
you need portability? If it were easy to move your studio to another
place for a day — such as a church, warehouse, or another
studio — would you do it? If the answer is yes or even maybe,
a portable system is worth considering. Each hard-disk format is
available in a portable configuration. But if mobile recording is
a high priority, the more portable, the better.
Begin
by determining your requirements: Do you need ease of setup? Durability?
Flexibility? Regardless of other considerations, you will need a
device that lets you simultaneously record a specific number of
tracks and contains the I/O to do it. In addition, you need to consider
the amount of disk space needed to store all of your tracks for
the duration of the session or concert. Recording an hour-long concert
on two channels of 16-bit, 44.1 kHz audio takes much less disk space
than at 24 bits and 96 kHz. If you do your homework, you'll know
exactly what to pack for the road.
Do
you have components you want to keep? Knowing what to buy often
includes determining how much to buy. Many musicians assemble the
various odds and ends they've collected over the years into a studio-like
situation without considering the bigger picture. Such a setup may
combine consumer devices (with unbalanced I/O operating at -10 dBV)
and professional-level gear (with balanced I/O operating at +4 dBu)
without level converters. This is not an ideal situation, especially
if you plan on doing professional work.
However,
some of the components may be compatible with your new hard-disk
recorder. For example, if you're happy with the mixer, mic preamps,
and effects processors you already have, explore the M-HDR option.
If you recently purchased a computer and it has enough RAM and a
fast enough processor to run the applications you like, consider
the DAW option. The hands-on type should consider control surfaces
with audio interfaces, which come in many sizes and price range.
On the other hand, if the gear you want to keep operates at -10
dBV, your choice of recorder should include interfacing options
that match. This kind of planning will keep you from spending money
on redundant items.
Although
these suggestions seem obvious, deciding to scrap parts of your
studio can be difficult. It requires you to be honest with yourself
about your goals and then follow through. Change is difficult, especially
in the realm of music making.
Does
it play well with others? If you plan to work with other musicians
and in other studios, compatibility and connectivity are prime considerations.
As you examine a recording system, note how it interfaces with the
outside world. Can you easily import and export files? What audio
file formats does it support? Are they common ones, such as WAV
or AIFF files? What multitrack I/O formats does it offer?
How
will you back up files and synchronize your devices? Once you have
stored your data, you will want to back it up. The more convenient
it is to do this, the better. Find out what kinds of file-transfer
and backup options are available, and which ones are built in to
the unit. Transferring the data from high-resolution multitrack
recordings may require add-ons, and you'll want to know about them
in advance.
A
related issue is synchronization. If you have multiple digital devices
in your studio, you will want the ability to clock the components
from a single, stable source. Can the recording system act as a
master and slave for word clock and MTC? If you plan to create sound
for picture, the hard-disk recorder you choose should be able to
work at the common frame rates.
Do
you want integrated instruments and effects? Many studio chores,
such as effects processing and synthesis, that are commonly relegated
to hardware can be done in software. In addition, modeling technology
opens up the world of speaker-cabinet and mic-preamp emulation.
Note
which of these technologies interest you. Some recording formats
are stronger in these areas than others, and knowing how tweaky
you are will help you determine to what level of madness you're
willing to descend.
Are
you already familiar with a particular interface? You need to determine
how much time you want to spend setting up and learning the new
system. Choosing a recorder similar to one you're used to will make
for a comfortable transition.
If
you cut your teeth on cassette multitrackers, for example, the layout
and features of a PDS will be familiar. If you've used tape-based
modular digital multitracks, such as the Alesis ADAT or Tascam DA-88,
an M-HDR may feel similar.
If
you are apprehensive about using computers, consider whether you
want to challenge yourself with a DAW. If you buy wisely and have
a good support system, you might be able to conquer your fears and
get into a computer-based system.
Do
you plan to expand? Perhaps today you need only the ability to record
and play back two tracks simultaneously. Even so, if you intend
to record a full band or work with surround audio in the future,
you should look for a system that has that capability now or consider
an expandable system.
How
is the support? Certainly you won't want to base your judgment of
a recording system on the manual, but it doesn't hurt to know what's
in store for you support-wise. The more complex the hard-disk recorder
is, the more documentation you will need. That is especially true
of a system that combines products from different manufacturers,
because it's likely that at some point you will need to troubleshoot
a problem.
If
you don't already have a sense, find out how the manufacturer is
in terms of support. A good place to begin is by checking user groups
and polling friends and acquaintances that know the system you're
considering. If a certain manufacturer has a reputation for terrible
support, think hard about sinking your money into its products.
What
do you think you want? “Often a customer has a gut-level preference
about what they want, and often it's correct,” says Nika Aldrich,
senior sales engineer at Sweetwater Sound. “We follow his
lead unless it really doesn't make sense for his application.”
It's
good to keep an open mind about your options, but it's just as important
to follow your instincts. If you prefer the look and feel of an
M-HDR to the DAW and PDS, and it still makes sense after you've
answered the questions I've mentioned so far, it may just be the
system you're looking for.
What's
your budget? Although it seems as though budgetary questions should
be asked early on in the process, it can be helpful to wait until
the answers to other questions are sorted out first: the perspective
you get by looking at the product features in all price ranges will
often help you make the best choice.
For
example, even though you saved up for a particular PDS, you might
find that you absolutely need a feature, such as motorized faders
or a touch screen, that is available only on a more expensive model.
Once you isolate your budget, you narrow down the solutions.
Have
you done your homework? Although you can get an overall gestalt
of a recorder's features from the manufacturer's Web site and magazine
ads, you should dig much deeper into what a product really offers.
It's not uncommon for features initially advertised in a product
to be only partially implemented at first. Additionally, phrases
like “as many as” may lead you to believe the device
records or mixes more tracks than it really does.
Begin
your research by reading EM product reviews and checking out Internet
user groups. Try to find people that already use the recorders you're
interested in. If you can find someone, get his or her feedback
on the device and see if they'll give you a demo. Although you can
get a demo from a salesperson in a music store, hands-on time with
a recorder in a studio environment is far more revealing and is
worth the effort.
By
now you should have a good idea of what you need — and don't
need — in a hard-disk recorder. With that information in hand,
let's look at how the different recorder formats compare to each
other, using our list of questions as our guide.
DAW
IN THE FAMILY
The computer-based DAW combines a hardware audio interface with
a personal-computer-based software front end. If you enjoy working
with computers, you'll feel comfortable using a DAW.
Depending
on your situation and needs, the DAW runs the gamut of affordability,
from cheapest (if you already have a computer) to one of the most
expensive ways to go. At the low end, even the most basic computer
these days includes 2-channel audio capabilities, and there is plenty
of freeware and shareware to cover basic music activities. If you
want greater flexibility and higher audio quality, you'll need to
spend some money.
Because
of the level of customization the format allows, a DAW can cover
just about any job, from film scoring and sound design to multitrack
and field recording. How successfully it does the job will depend
on how specialized your system is. For example, portability, once
a major drawback of computer-based DAWs, is no longer an issue with
the advent of faster and more powerful laptop computers.
However,
the DAW requires some DIY initiative, because there are many choices
that need to be made, such as platform, interface, software, and
plug-in format. Matching the individual components that meet your
specific needs and budget takes research, and setting them up takes
time and some experimentation.
Companies
such as Carillon (Win), Wave Digital Systems (Mac), and Sound Chaser
(Mac/Win) offer rackmountable turnkey DAWs that are optimized for
specific hardware and software combinations. Carillon even improves
the off-the-shelf computer by adding a quieter studio-friendly fan.
A turnkey system takes much of the guesswork out of setting up a
DAW, but be prepared to pay more than you would if you were to configure
it yourself. For some, the convenience is worth the added expense.
The
choice of computer platform — Mac or PC — needs to be
made. In terms of market share, the Windows operating system dominates
and opens the door to a greater variety of inexpensive software
and hardware options. For pro-audio purposes, however, the playing
field quickly levels out between the two platforms.
Sticking
with the platform that you're already familiar with means you'll
have an easier time getting your music system up and running. But
it's worthwhile to check out the recording systems available for
the other platform, because many popular programs are available
for only one platform. For example, MOTU Digital Performer is Mac
only, and Cakewalk Sonar is Windows only.
The
audio interface you choose is also determined by the kinds of work
you do. Your choice should be influenced by your answers to the
questions about audio quality, the final destination of your audio,
the number and types of inputs you need, the kinds of instruments
you will record, and to what level you need MIDI. The computer and
interface you choose will also be an influence on your choice of
bus system, which may be SCSI, USB, or FireWire, for example.
Many
interfaces are bundled with a lite version of a well-known digital
audio sequencer. One strategy is to determine what you need from
an interface, find the products that fit your needs, and see what
apps are bundled with them. The software manufacturer is hoping
you'll upgrade to the full version: because the upgrade price is
cheaper than the off-the-shelf version, that is often an economical
way to go. Many musicians find that the lite version of a program
is all they ever need.
If
you want a more powerful system but don't want the hassle of matching
a handful of third-party components, consider choosing one manufacturer
— such as Digidesign, Emagic, MOTU, or Steinberg — and
sticking with its product line. Among the benefits of using the
products of one manufacturer are tighter audio and MIDI timing.
Although this isn't the cheapest way to go, you can be sure that
all of the products are fully compatible.
If
you already know which application and plug-ins you want to use,
but need to find the computer, make sure the computer's specs match
the software requirements. Of special importance are processor speed
and RAM amount. If you're using a computer you already have, there
are products for bolstering your ability to process audio, such
as TC Works PowerCore and Mackie UAD-1.
The
DAW clearly leads other hard-disk recorders in editing capabilities.
The ability to view multiple files graphically on a large screen
and use the mouse to alter data is one of the biggest advantages
a DAW has over the other hard-disk formats. Although there are products
in the PDS and M-HDR formats that offer the ability to work with
a VGA monitor and mouse, the DAW still gives you a deeper level
of editing.
Latency
is an issue with many DAWs. The time delays are caused not only
by drivers, effects processing, or A/D and D/A conversion, but also
by qualities inherent to USB and FireWire. Most systems can be tweaked
to get latency times to a workable minimum in high-bandwidth situations.
As manufacturers improve their products, latency times will continue
to drop. (See “Square One: Better Latent? Never!” in
the June 2002 issue). Latency is an issue that PDS and M-HDR users
won't have to deal with.
PORTABLE
DIGITAL STUDIO
The name says it all: a PDS is a portable studio, complete with
mixer, preamps, and effects. It's the perfect choice if you want
an all-in-one recorder that you can take almost anywhere.
Besides
portability, the main selling point of this format is simplicity.
Unlike a DAW, the PDS has a software engine written specifically
for recording music, and the device comes ready to use: there's
no need to match components or worry about software conflicts. If
you want to upgrade the operating system at a later date, it's a
straightforward process compared with upgrading a computer's operating
system and troubleshooting the rest of your DAW.
The
new PDS user should be prepared to spend time getting to know the
interface and learning the various functions of each button, knob,
slider, and menu. If you do a bit of research, you'll quickly learn
that certain products are more intuitive and ergonomically designed
than others. Find the ones that are user-friendly, because the easier
it is to get around on your PDS, the more fun you'll have using
it.
A
PDS can tackle an assortment of basic multitrack-recording projects,
assuming you have the right number of simultaneous record tracks
and the right kinds of inputs for the job. Every PDS will record
at least two tracks simultaneously, but you can choose a model that
records 4, 8, 12, 16, or — in the case of the Roland VS-1880
— 18 tracks at a time (at a data resolution of 16 bits, 44.1
kHz). In addition to regular tracks, PDSs offer virtual tracks,
and some even allow you to add several channels of streaming digital
audio into your mix.
As
you inspect the I/O options of a PDS, remember that you'll be living
with them for as long as you keep the recorder. The trick is to
get the right combination of balanced and unbalanced ¼-inch
jacks; phantom-powered XLR jacks; and digital I/O, such as USB,
optical and coaxial S/PDIF, or Lightpipe. The I/O you settle on
will determine the gear that you can interface with and will influence
other gear-related purchases.
As
I mentioned earlier, some PDSs include internal sounds and offer
limited sequencing and looping capabilities. These features are
useful as a compositional aid, but if you need a full-featured sequencer,
you'll have to connect your PDS to a computer or keyboard workstation.
In that case, look for a PDS that has the MIDI implementation that
suits your needs, such as the ability to send and receive MTC and
MMC. This is also important if you want to record dynamic automation
using a sequencer or coordinate your PDS with a digital mixer or
DAW. Sync capabilities are crucial if you plan to create music for
picture. Note that many, but not all, PDSs support the standard
frame rates.
If
you plan to collaborate with others, make sure you can save, import,
and export files in a common file format, such as WAV. The ability
to import common file types will also allow you to load instruments
and construction kits from sample CDs.
Although
the PDS is weaker than the DAW in terms of editing power, it is
quickly catching up. Many machines offer waveform displays that
improve the editing capabilities of the unit. If you want more than
a backlit LCD to work on and you have the budget, Roland's VS-2480CD
allows you to add a mouse and VGA monitor so you can edit more the
way you would on a DAW.
In
terms of recording resolution, 24-bit word lengths are becoming
increasingly common, and sampling rates up to 96 kHz have begun
to appear. Even the inexpensive units have 18-bit or greater A/D/A
converters, which is useful even if you record at 16 bits. Just
remember that your track count may be reduced when you record at
higher bit and sampling rates.
The
ability to customize your data-backup scheme depends on the PDS
you choose. Some recorders have drive bays that allow you to swap
hard disks or add a CD-RW drive; some have built-in CD drives and
a SCSI port; others may have only a Zip drive. Determine the amount
of data you'll create with your PDS and make sure you can get enough
storage to match.
Of
special note are a pair of handheld 4-track recorders that take
the PDS format to a new level of portability. The Korg ToneWorks
PXR4 and the Tascam Pocketstudio 5 technically are not hard-disk
recorders, because they record to SmartMedia and CompactFlash cards,
respectively (see Fig. 9). However, each offers a built-in microphone,
analog and digital I/O, rhythm tracks, and programmable effects.
Data compression is used on both recorders: MPEG-1 Audio Layer 2
on the PXR4 and MP3 on the Pocketstudio 5. For the musician looking
for the ultimate in portability, these two items are worth further
investigation. For a more in-depth look at portable digital studios,
see “The Incredible Shrinking Studio” in the July 2001
issue.
I
WANT MY M-HDR
Large-scale multitrack recording is the M-HDR's strongest suit.
These rackmountable machines offer fewer bells and whistles than
a DAW or PDS but are designed to be as easy to use as a tape recorder
(see Fig. 10). And although M-HDRs are often larger than PDSs or
laptop computers, they are portable.
Like
the PDS, the M-HDR's operating system and interface are designed
for audio recording, giving them high points for stability. And
like the PDS, the M-HDR is not as powerful as the DAW in terms of
editing. But unlike either the DAW or PDS, the M-HDR can handle
professional-level multitracking jobs, in which quantity and quality
are of major importance. If you want to split 24 channels off of
a club's front-of-house mixer and run them into a recorder, an M-HDR
is for you.
M-HDRs
offer plenty of interfacing options. Most recorders give you a choice
of I/O cards that cover the major digital interchange formats, such
as Lightpipe, TDIF, AES/EBU, and S/PDIF. To save space on the rear
panel of the M-HDR, the card may have a DB25 jack requiring a cable
that breaks out to the individual connectors at the other end. (Remember
to add these kinds of cables to your budget when you're doing price
comparisons.) The Alesis ADAT HD24 differs in terms of I/O because
it comes standard with 24 channels of analog I/O (on balanced ¼-inch
TRS connectors) and 24 channels of digital I/O (on three Lightpipe
connectors).
Although
M-HDRs support high-resolution recording, the implementation differs
from product to product. For example, the iZ Technologies Radar
24 has optional analog I/O cards that let you record at 96 and 192
kHz sampling rates. With the Mackie HDR24/96, on the other hand,
analog I/O is not available for recording and playing 96 kHz tracks:
you have to use AES/EBU or TDIF I/O. As with the PDSs, if you use
sampling rates above 48 kHz, you reduce your track count.
M-HDRs
offer a variety of storage options, allowing you to choose a compatible,
qualified drive from a list of recommendations. Some drives are
designed for real-time recording and playback, while others are
purely for data backup. Some M-HDRs also offer Ethernet connections
that let you use the recorder as an FTP server to copy files to
a computer. The implementation of this feature differs between products,
and setting it up is one of the trickiest aspects of an M-HDR. This
is where you'll want to know how good a manufacturer's manual and
tech support are.
Most
M-HDRS support pro-level clocking and sync functions, so interfacing
with other recording systems is always an option. If 24 tracks aren't
enough, check to see if a pair of the products you like can be locked
together, and find out which connectors it takes.
In
commercial studios, noisy devices are usually tucked away in machine
rooms and controlled remotely from the control room. However, in
personal studios where space is an issue, fan noise can be a problem.
If you're sensitive to ambient machine noise, the level of fan noise
in a recorder is another factor you'll want to consider.
Although
it records to a SmartMedia card, the DigiTech GNX3 Guitar Workstation
is a floor-unit guitar processor that includes an 8-track digital
recorder. The GNX3 has looping capabilities and the ability to punch
in and out, making it well suited for songwriting. It records WAV
files, and you can use the SmartMedia card to transfer your tracks
to and from a computer. The GNX3 comes bundled with Cakewalk Guitar
Tracks 2.0 (Win) and Pyro 1.5 (Win), and DigiTech's GenEdit (Mac/Win)
editor/librarian.
MUSICIAN,
RECORD THYSELF
Although the descriptions I've given here merely scratch the surface
of each format's merits, you should now have a clearer sense of
the features you want and the devices that can deliver them. Trust
your intuition. If one kind of interface seems more inviting than
another, investigate it further.
Try
to get hands-on time with the products you're interested in, away
from a sales environment. The members of user groups are often more
than happy to answer questions about the system they use, and it's
likely that one of them lives near you.
The
bottom line is that a combination of self-evaluation and product
research will quickly lead you through the tangle of products and
options. Only after you've narrowed down your options to one or
two hard-disk recorders should you even think about getting that
credit card out.
This article presented courtesy of Electronic Musician magazine.
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