soundcards
Transcription
soundcards
soundforcards recording playback by Dave Tosti-Lane Have you noticed that computer prices keep dropping and hard disks are getting cheaper than popcorn at the movies--<:ompared byte for bite? Are you thinking maybe it's time to try computer-based audio editing and playback? Before you take the plunge, take a tip from the folks who got wet when the waters were considerably murkier: the right sound card can make a big difference. Not too long ago, there were only a few cards appropriate for theatre audio; now there are dozens. roday's cards are by and large much better, and they sure are less expensive. For what you would have paid for two tracks of high quality inlout five years ago, you can have eight to sixteen tracks today, and with more options too. What's a Sound Card? Let's review what a sound card does and then look at why in the world there are so many choices. For years, Macintosh computers have had the ability to make noise (in the good sense). Today, the same is true with most Windows-based machines. But out of the box, neither computer is suitable for the complex recording or playback of theatre sound. This isn't really a criticism of either computer platform-the sound capability included \vith both these days is perfectly adequate for typical office and home applications. But, what if you want to have more than just a stereo pair of outputs? What if you want to record a band or a chorus using multiple microphones? What if you need to interface other digital or analog audio equipment to the computer so you can really use the capability of the great software available for both platforms today? Well, you need a (wait for it) ... sound card. Sound cards range from inexpensive stereo game cards that cost around $39.95 to ultra expensive multitrack systems that can go for well over $30,000. At its simplest, a sound card is a device for changing analog audio to digital data so that the computer can store and manipulate it. Asimple card would have a stereo input for a microphone or a line input, an analog to digital converter (AD, or sometimes ADC) to encode the incoming audio into digital data, a digital to analog converter (DA, or sometimes DAC) to unencode or decode the digital data back into analog audio, and either a speaker output or a line level output to get the sound back out of the computer. Notes on the Chart The chart on the following pages is fairly self-explanatory, but a few notes will help clarify my intentions and decipher the multitude of abbreviations. The column labeled "Street Price" is only intended as a rough guide. Most of the prices come from dealer and discount musical instrument Web sites. Some readers may wisely decide to pay a higher price at a local establishment in order to have the security of immediate service and repair. The column headings in the Inputs and Outputs section of the chart represent the multitude of options available for connecting external devices to your sound card. An explanation of my abbreviations follows: TZ>&T 5 P R I N G 2 0 0 0 9 INPUTS OUTPUTS COMPANY PRODUCT NAME WEBSITE STREET PRICE Aardvark Aark24 aardvark-pro.com $699 8 2 2 Aardvark Direct Pro 24/96 aardvark-pro.com $579 4 Antex StudioCard 2000 www.antex.com $895 4 Antex LX-44 www.antex.com $850 4 4 Antex SC-22 www.antex.com $595 2 2 1 1 1 8 2 2 2 1 6 2 2 2 2 4 2 2 8 $149 2 2 2 2 www.digidesign.com $539 2 2 2 2 Digital Audio Labs CardD Digital Only www.digitalaudio.com $279 Creative Labs Sound blaster Live www.soundblaster.com Platinum AudioMedia III DigiDesign 2 2 Digital Audio Labs CardD+ www.digitalaudio.com $459 Digital Audio Labs CardDeluxe www.digitalaudio.com $449 Digital Audio Labs TDIF 2496 PRO www.digitalaudio.com $495 Echo Digital Audio Darla 24 www.echoaudio.com $295 2 Echo Digital Audio Gina www.echoaudio.com $425 2 2 Echo Digital Audio Mona www.echoaudio.com $799 4 4 2 Echo Digital Audio Layla www.echoaudio.com $595 8 2 1 1 10 2 Ego-Sys Waveterminal 2496 www.egosys.net $279 2 2 2 2 Frontier Design Group Dakota www.frontierdesign.com $639 Frontier Design Group Montana www.frontierdesign.com $239 10 5 P R I ' G 000 TZ>&T 2 2 2 2 2 8 2 2 16 16 8 4 2 1 8 16 16 1 2 1 8 2 6 6 2 4 2 1 8 1 1 16 16 2 1 Analog Bal: balanced analog input or output. Analog U-Bal: unbalanced analog input or output. CONVERTER DETAILS PLATFORM BUNDLED SOFTWARE NOTES W95/98 ND-D/A Drivers, Samplitude Basic External converters; up to 4 cards can be used in asingle computer. 24-bit 96KHz W95/98 ND-D/A Drivers, Samplitude Basic External converters, with mic preamps; up to 4 cards can be used in asingle computer. 20-bit ND-D/A W95/98/NT W95/98/NT4 drivers 20-bit ND-D/A W95/98/NT W95/98/NT4 drivers (Claimed) 24-bit 48KHz Includes MIDI port; can generate or follow SMPTE LTC, VITC, and MTC. 20-bit ND-D/A W95/98/NT W95/98/NT4 drivers DSP mixing; ability to read and write SMPTE LTC, VITC, and MTC. 16-bit 48KHz ND-D/A W95/98/NT Drivers, utilities Includes 5-114" drive bay insert with connectors and headphone output. 18-bit 48KHz ND-D/A MaclWintel PCI W95 driver N/A W95/98/NT W95/NT drivers Out of production. ND 16-bit 64x D/A 18-bit 8x W95/98/NT W95/NT drivers Audio only: +4dB(rO.775v) on RCA connections; out of production 24-bit 96KHz W95/98/NT W95/NT drivers Can use analog and digital connections together for 4 channel in/out; multiple cards sync together via internal connection. NlA W95/98/NT Drivers 24-bit AD/DA W95/98, Mac (604 or higher) CoolEdit Pro SE Mac G4 drivers under development; BeDS drivers under development. 20-bit 128x W95/98, Mac (604 or higher) CoolEdit Pro SE Mac G4 drivers under development; BeDS drivers under development. 24-bit AD/DA W95/98, Mac (604 or higher) CoolEdit Pro SE Includes 4 mic preamps. W95/98 drivers to ship, NT, Mac, BeDS to follow 20-bit 8-50KHz W95/98, Mac 128x oversample Drivers forW95/98, CoolEdit Pro SE (NT in beta) 24-bit 96KHz ND-D/A W95/98 NlA W95/98 Drivers, CoolEdit Pro SE N/A W95/98 NlA Drivers Can be purchased with bundled Session Software on Mac or PC ($799), or Pro Tools on Mac ($850). Includes transport control cable and software. Both Word Clock and SuperClock in and out; full DirectX driver support. Internal WordClock connector; optional MIDI/SMPTE interface. Allows any input to be used for SMPTE LTC in/out. Expands Dakota with additional ADAT in/out, ADAT Sync out, SMPTE VITC and LTC in/out and WordClock input. Dig S/PDIF 0: optical digital input or output conforming to the consumer Sony/Phillips Digital Interface Format. These are stereo connections, typically found on MiniDisc players and compact disc players; sometimes called "Toslink" connections. Dig S/PDIF C: coaxial digital input or output conforming to the consumer Sony/Phillips Digital Interface Format. These are stereo connections, typically found on MiniDisc players and compact disc players, where a single RCA-type connection carries two input or output digital channels. Dig AES3: balanced digital input or output conforming to the AES3 (also called AES/EBU) specification typically are found on professional level DAT decks, compact disc players, and digital mixers. These are most often XLR-type threepin connections. Dig ADAT: These are single optical connections (identical physically to Toslink connections) which carry eight channels of digital audio in a format developed for the Alesis ADAT digital recorder (sometimes called "Lightpipe"). These connections can be found on a large number of converters, digital mixers, and, of course, on ADAT digital recorders. Dig TDIF: These are Db25 computer-type connections, identical in appearance to typical 25-pin computer connectors. They carry eight channels of digital audio in a format developed for the TASCAM DA-88 digital recorder. They can be found on a number of converters, format converters, digital mixers, and of course, DA-88 and DA-38 digital recorders. ADAT Sync: Found on many cards that have ADAT optical connections, these allow multiple ADAT aware devices to "lock up" to each other so that all tracks will be in sync. Word Clock: These are connections which carry a square wave signal at the sampling rate of the device. Word Clock inputs allow the digital device to be synchronized to a master sync clock for the studio. Word Clock outputs allow the device to serve as master clock for other digital devices. Most often these are BNC connections. MIDI: These are Musical Instrument Digital Interface connections, generally five-pin DIN type connectors. They are used either to pass MIDI Machine Control (MMC), MIDI Time Code (MTC) or general MIDI messages allowing interconnection of keyboards and other musical instruments to computer-based sequencers, samplers, and other software. TZ>&T 5 P R I N G 2 0 0 0 11 INPUTS WEBSITE PRODUCT NAME COMPANY STREET co PRICE ro co <tl I ~ bD 0 0 <tl --- ex: ex: Cl c: '-' <tl !::: LL.. (Y") Cl Cl t / ) a- a- w ~ Cl t/) ex: ex: <tl c: 12 bD 0 OUTPUTS bD en a bD bD Cl bD Cl LL.. Cl fbD Cl u""'"' c: U <tl coI 0 LL.. '-' LL.. co ~ Cl Cl (Y") ;>,E t/) ~ t/) bD bD a- a- w Cl '-' t/) t/) ex: ex: E E ~ "2 <tl <tl Cl 0 c: c: bD bD .~ bD Cl ex: ~ ~ ex: ex: Cl Cl Cl Cl --- --- LL.. u""'"' c: U ;>,E t/) Cl fbD ~ Cl Cl ex: '-' "2 ~ ~ Frontier Design Group Sierra www.frontierdesign.com $289 Frontier Design Group WaveCenter/PCI www.frontierdesign.com $319 Frontier Design Group Zulu www.frontierdesign.com $495 Frontier Design Group Tango 24 www.frontierdesign.com $689 Gadget Labs WAVEJ4 www.gadgetlabs.com $249 4 Gadget Labs WAVE4/24 www.gadgetlabs.com $269 4 Gadget Labs WAVE4/96 www.gadgetlabs.com $349 4 1 4 1 Gadget Labs WAVE8/24 www.gadgetlabs.com $499 8 1 8 1 Korg SoundLink 1212 liD www.korg.com $349 Lynx Studio Technology Inc. Lynx 1 www.lynxstudio.com $599 MIDIMAN Delta 44 www.midiman.net MIDIMAN Delta 66 www.midiman.net $349 MIDIMAN DiD 2448 www.midiman.net $129 2 2 2 2 2 MIDIMAN DiD 2496 www.midiman.net $229 2 2 2 2 2 MIDIMAN Delta 1010 www.midiman.net $679 5 P R I N G 2 0 0 0 T b&T 8 Cl 2 2 8 4 8 8 8 8 8 1 2 8 1 4 1 2 2 8 2 2 4 1 1 1 2 2 8 2 1 2 2 1 1 2 4 $399.95 4 8 2 2 2 4 8 4 8 2 2 4 1 1 8 2 2 1 1 CONVERTER DETAILS PLATFORM NOTES BUNDLED SOFTWARE (Claimed) External box with 8MIDI in/out, SMPTE VTC/LTC in/out. N/A W95/98 N/A N/A W95/98, Mac (ASIO/OMS) W95/98/NT drivers, CoolEdit Pro SE 20-bit 128x External converter N/A Converter for any ADAT Lightpipe device. 24-bit 128x External converter N/A Converter for any ADAT Lightpipe Device 16-bit 64x W95/98 Drivers 24-bit 48K W95/98, Mac (ASIO) Drivers, Cool Edit Pro SE 1/4" stereo Jacks, NT drivers promised; SIPDIF ($129), and ADAT ($199) optional. 24-bit 96K W95/98, Mac (ASIO) Drivers, Cool Edit Pro SE NT drivers promised; SIPDIF ($129), and ADAT ($199) optional. 4-bit 48K 20-bit AID-D/A W95/981NT, Drivers, Mac (ASIO/OMS) Cool Edit Pro SE W95/98, Mac 24-bit 8-50KHz W95/981NT/2K AD/DA 128x oversampled SIPDIF ($129), and ADAT ($199) optional. Rack mount external converters available as option. Drivers for W95/981NT/2K Up to 4 Lynx 1cards can be locked together in a single machine. W95/981NT, 4x424-bit/ 96KHz full duplex (on card) W95/981NT, 24-bit 48Khz D/A for monitoring W95/98 (PCI) 24-bit 96Khz D/A for monitoring 24-bit 96Khz AD/DA In external box) W95/981NT, Drivers for Mac (PCI) W95/981NT, Drivers for W95/981NT, ASIO/ASI02, Mac, DirectX Mac (PCI) 1/8" mini-jacks with RCA adaptors; includes MIDI interface with adaptor cables. (out of production) Drivers, Deck II (Mac) 4x424-bit/ 96KHz full duplex (on card) Mac (PCI) DIGITAL ONLY Drivers for W95/981NT, ASIO/ASI02, Mac, DirectX Connectors on break-out box; min. Pentium 11-266 (128Meg RAM for 96KHz), Mac G4, G3 or G3 accelerator. Same as Delta 44: adds Coaxial (RCA) SIPDIF connections on card; total of 6channels4 analog, 2digital- can be used together. Drivers, control panel Accepts CD analog internally; 2-channel digital input/output with analog output for monitoring. W95/981NT, Drivers for Mac (PCI) W95/981NT, Same as DiO 2448 with addition of higher sample rate, mixer allowing 4 outputs, higher quality D/A, Mac G3/G4 compatibility. ASIO/ASI02, Mac, DirectX ASIO/ASI02, Mac, DirectX Converters in externallU rack mount box. Min PII 300Mhz (128 Meg RAM for 96KHz) Mac G3/G4. Prices and Options for Every Budget Cards with speaker outputs tend to be game cards and aren't really intended to be used for sel;OUS recording or playback. However some game cards edge into the quality we are looking for in theatre sound, and some of them would serve a small theatre company quite well. For instance in the $100-$150 ( .S. dollars) range, Creative Labs' Sound Blaster Uve! Platinum is a good sounding card with some nice feanlres, but it has a limited number of inputs and outputs and it records at onJy one sample rate. Moving not very far up in cost, you'll find more features: usually a minimum of four inputs and outputs, options for digitaJ input and output (direct connection to consumer and pro digitaJ devices \vithout going through the DAiAD converters), the ability to use multiple cards in a single system, and so on. The Darla 24 from Echo DigitaJ Audio (around $295) falls into this middle group. It haS onJy two inputs, but its eight outputs give it a distinct advantage for theatre playback; it doesn't have digitaJ in/out, but its ADIDA converters are much better than the ones in the Sound Blaster; and the Darla 24 will work 'vith both PCs and Macs. If you're able to spend a At its simplest, a sound card is a device for changing analog audio to digital data so that the computer can store and manipulate it. little more, Aardvark's Direct Pro 24196 (around 5 9) has high quality converters, four higher quality baJanced anaJog inputs, six baJanced anaJog outputs, and consumer level digitaJ inputs and outputs, and it aJso uses an externaJ break-out box with microphone preamps and phantom power. (Unfortunately, it does not work on the Mac at this time, but may in the near future.) From this point, prices go up rather quickJy, but the options aJso increase. In the 599 and up range, you will find systems with more advanced digital input and output options, more and better analog inputs and outputs, and time code features of particular interest to those doing film and video work, or who have large collections of digital equipment that they need to interconnect. TZ>&T s P RIG 2 0 0 0 t3 INPUTS PRODUCT NAME COMPANY WEBSITE -<0 STREET co, ro ::::> PRICE co 0.0 0 <0 C 0.0 0 <0 C <: <: 14 MIDIMAN Flying Calf www.midiman.net $149.95 MIDIMAN Flying Cow www.midiman.net $349 MOTU 2408mkll www.motu.com MOTU 1224/324 MOTU a c..:> ~ ~ Cl e:: Cl 0... -- OUTPUTS -<0 a -<0 co, co ::::> u.;s: r'C) (/) ~ ~ c :>,E Cl (/) (/) (/) <: <: f 0.0 0.0 0.0 0.0 0.0 ~ Cl Cl Cl Cl Cl Cl <: l..LJ Cl U c..:> "0 0 ~ 0.0 -Cl 0 <0 ~ ~ c..:> LL.. LL.. Cl 0.0 0... Cl 0... Cl <0 c <: -- -- .;s: r'C) (/) ~ U ~ c :>, Cl ( / ) (/) (/) <: <: f 0.0 0.0 0.0 0.0 0.0 ~ Cl Cl Cl Cl Cl Cl <: l..LJ Cl U - 0 c..:> "0 0 ~ 2 2 2 2 2 2 $995 8 2 www.motu.com $1,295 8 24i www.motu.com $1,195 MOTU 1296 www.motu.com $2,095 MOTU 308 www.motu.com $695 8 8 8 RME Digi96 rme-audio.com $300 2 2 RME Digi96/8 rme-audio.com $455 2 2 RME Digi96/8 PRO rme-audio.com $635 2 2 2 8 RME Digi96/8 PST rme-audio.com $635 2 2 2 RME Digi96/8 PAD rme-audio.com $699 2 2 2 2 8 RME Hammerfall Light rme-audio.com $635 4 2 16 1 4 2 16 1 RME Hammerfall rme-audio.com $775 6 2 24 1 1 6 2 24 1 1 Sea Sound Solo EX seasound.com $849 SEK'D Prodif 96 PRO www.sekd.com $699 P R I ;0.; G ! 000 TO~'T 24 24 1 1 8 1 10 24 1 2 12 1 12 2 4 1 ~ 2 2 24 24 1 1 4 2 1 2 2 1 1 8 8 8 1 2 2 2 2 8 2 2 2 8 2 2 2 8 8 2 2 2 2 8 8 2 2 2 2 8 1 4 2 2 - Cl 1 2 2 2 2 2 8 1 I CONVERTER DETAILS PLATFORM BUNDLED SOFTWARE NOTES (Claimed) 20-bit delta-sigma. 128x External converter N/A Digital to analog converter only. 20-bit delta-sigma. 128x External converter N/A AID Can be locked to external clock via digital inputs. 24-bit 48KHz AD/DA (external) W95/98, Mac (PCI) Drivers for W95/98, AudioDesk software for Mac Up to three 2408 converters can be attached to a single 324 card (included); can mix with 24i, 308, 1224, and 2496. 2408 can be used alone to convert between ADAT and TOIF. 24-bit 48KHz AD/DA (external) W95/98. Mac (PCI) Drivers for W95/98, AudioDesk software for Mac Up to three 1224 converters can be attached to a single 324 card; can mix with 24i,308, 2408, and 2496. Comparing Features The sheer number of sound cards out there. both for PC and for Mac slstems, makes an exhaustive comparison unwieldy. By the time an ambitious reviewer managed to test all the cards available, more th:m half of them would be out of production, :md an equal number of new cards, each promising to be the honest thing. l\"Quld be waiting on the shelf for rel'iew. Still, anyone about to spend a few hundred dollars really should compare the features of several cards before making a commitment. The table beginning on page 10 has a good cross section of cards and converters (sixtyseven of them), and rve summarized what I think are the most important features a theatre sound designer needs to consider. One can generally find a great deal of information regarding a 24-bit 48KHz AlD-D/A External converter N/A Works with MOTU 324 PCI Card 24-bit 96KHz AlD-D/A External converter N/A Works with MOTU 324 PCI Card N/A Format converter N/A Works with MOTU 324 PCI Card N/A W95/98/NT Drivers, analysis software Optional WordClock module available; Mac driver promised. N/A W95/98/NT Drivers, analysis software Optional WordClock module available; Mac driver promised. 20-bit DA W95/98/NT Drivers, analysis software Optional WordClock module available; Mac driver promised. 20-bit 96KHz AD/DA W95/98/NT Drivers, analysis software Optional WordClock module available; Mac driver promised. 20-bit 96KHz AD/DA W95/98/NT Drivers, analysis software Optional WordClock module available; Mac driver promised. N/A W95/98/NT Drivers, analysis software Expansion board adds 2optical S/PDIF, 8 ADAT, 1WordClock ($190), Mac driver promised. N/A W95/98/NT Drivers, analysis software Mac driver promised. 24-bit 96KHz (external) W95/98/NT, Mac Drivers, Cubasis(Mac), Cubasis VST, ACID Rock (PC) 20-bit (to 96KHz) W95/98 Drivers Mic preamps included, mixable mic/line inputs, headphone outputs, control-room outs. Uses two 1/4" Stereo jacks for analog in/out (unbalanced) card or its vendor on the Internet. It is inevitable, given the time it takes between writing and publishing of an article, and the speed with which the computer industry comes up with new products, that significant cards will be absent [rom this list. It is also inevitable that some of the listed features will no longer be accurate. Readers are urged to do a little more research on their own before making a purchase decision. One can generally find a great deal of information regarding a card or its vendor on the Internet. Using the mmle of a product in a keyword search through Yahoo or one of the other Internet search engine will give you dozen , if not hundreds of links. If you find that there is a user group or support forum for any of the cards IOU are considering, you will usually be able to join the fa 111 01 even before you buy a cm·d, so you can read ule messages :md see what common problems mal be, :md more inlpo11anuy how quickly mel· m·e dealt lIiUl by the SUppOI1 slllff. Often the best part of these forums is the assistance of other users who have already solved most of the problems you might encounter. It is also important to consult with the people who make the software you plan to use. They will undoubtedlv know if there are compatibility problems with particular cards. Don't, however, expect them to tell you which card to buy; there are just too many combinaT2)&T SPRI:-iG 100015 OUTPUTS INPUTS PRODUCT NAME COMPANY WEBSITE STREET - co '", PRICE co '" :::> 00 a 00 a '" cx::'"c:: ~ 16 0 u l.L.. l.L.. Cl 0 e: -a... - ~ UJ Cl cx:: cx:: (/) $999 8 SEK'D Prodif Plus www.sekd.com $399 2 2 2 2 8 SEK'D Siena www.sekd.com $499 8 SEK'D ADDA 2496 DSP www.sekd.com $3,999 2 2 2 2 SEK'D ADDA 2496 S www.sekd.com $599 2 2 2 Sonorus STUDI/O www.sonorus.com $569 Sonorus AUDI/O AD24 www.sonorus.com $649 Sonorus AUDI/O DA24 www.sonorus.com $499 Sonorus Modular 8 www.sonorus.com $6,995 Soundscape Mixtreme sou ndsca pe-digita I.com $549 Soundscape SS810-1 soundsca pe-digital.com $1,695 Soundscape SS810-2 soundsca pe-digital.com $349 Soundscape SS810-3 soundscape-d igital.com $599 Terratec EWS88-MT www.terratec.de $499 8 2 Yamaha DSP Factory DS2416 www.yamaha.com $849 2 2 Yamaha AX16AT www.yamaha.com $299 Yamaha AX44 www.yamaha.com $259 Zefiro ZA2 www.zefiro.com $419 :\ G 1 () () 0 T D&T ;:>,~ U 00 (/) ~ 00 ~ "E -Cl :s: ~ cx:: cx:: a '"c '"c:: 0 u -l.L.. -l.L.. Cl Cl -- -a... a... U ~ UJ Cl cx:: cx:: «) (/) == c:: .= u ;:>,~ (/) Cl (/) (/) f00 00 00 00 00 ~ Cl Cl Cl Cl Cl Cl cx:: U "0 ~ - Cl ~ 8 2 www.sekd.com I co '", co '" :::> u 2 ARG88 H == c:: Cl ( / ) (/) f~ 00 00 00 00 00 Cl Cl Cl Cl Cl Cl cx:: SEK'D 'i' - U.= «) 2 2 2 2 8 2 4 1 2 8 2 2 2 2 2 2 2 16 2 4 16 1 8 8 1 8 8 16 1 8 8 1 8 8 1 8 1 8 1 8 8 8 16 8 1 8 8 1 8 1 8 1 8 2 2 2 1 8 8 1 16 4 2 2 2 1 8 8 16 4 1 2 2 2 2 CONVERTER DETAILS NOTES PLATFORM BUNDLED SOFTWARE 16-bit AlD-D/A W95/98 Drivers Analog in/out on RCA breakout cable. 20-bit AlD-D/A W95/98 Drivers Uses two 1/4" stereo jacks for analog in/out (unbalanced). 24-bit AlD-D/A W95/98 Drivers Analog in/out on RCA breakout cable. 24-bit 96KHz External converter N1A Balanced XLR in/out 2channel AD/DA. 24-bit 96KHz External converter N1A Balanced XLR in/out 2channel AD/DA, half-width 1U rackmount. 18-bit W95/98, (NT beta), Steinberg VST MAC W95 driver and control panel (Mac &W95) 24-bit 64X over External converter N/A Analog to Digital converter; XLR analog inputs, 1/2 rack size. 24-bit 128X over External converter N1A Digital to Analog converter; XLR analog outputs, 1/2 rack size. 24-bit 128X over External converter N/A Flexible configuration (modular) multiple sync; flexible options include AES3 and BlackBurst Video. N/A W95/98/NT Drivers, Soundscape V2 software, utilities 20-bit External converter N/A Stand aAlone or can be used with Mixtreme or other TDIF or ADAT interface cards. N/A Format converter N1A Converts ADAT to/from TDIE 20-bit External converter N1A Stand alone or can be used with Mixtreme or other TDIF interface cards. 24-bit 96K AD/DA oversample 64x AD,128x DA) W95/98/NT, AlSO Drivers Converts in external box which can mount in 5-1/4" drive bay. 18-bit record 16-bit playback W95/98 Drivers, utilities Expandable via AX44, AX16AT. N1A W95/98 Drivers, utilities Expands DSP Factory with digital in/out. No details W95/98 Drivers, utilities Can use 2together for 8 analog channels in/out. 20-bit output only W95/98/NT Drivers, utilities Only digital inputs; analog outputs for monitoring. (Claimed) tions of equipment that might wind up in a single mach.ine. Obviously, the earlier advice about user groups or support forums holds true for software as well. One thing you can count on is that the typical sales creatures at the local computer/video/appliance/furniture store will not be able to produce an)thing resembling a clue if you ask them for advice about using digital audio in performance. A Personal Comparison Can be configured for one S/PDIF and one ADAT connection if desired.; also includes optional BNC WordClock in/out, ADAT and MIDI timecode INPUT. Use with external converters via TDIF; optional S/PDIF and Video Blackburst daughter card ($149). I have recent experience \vith two sound cards-the Wave 8/24 from Gadget Labs, and the Layla from Echo Digital Audio-using them for building sound effects and running two productions. My observations, while not an objective review of either product, may provide some helpful reference points for those making their own comparisons. The cards were installed in a Windows 98, Pentium II, 350 MHz machine, and were used with three software applications: SAW Plus 32 from Innovative Quality Software, Sound Forge from Sonic Foundry, and SFX PRO from Stage Research. Both cards performed well for basic editing projects. The Layla card seems to me to have a lower noise floor (qujeter) than the Gadget Labs, and it also provides two more inputs and outputs. The Gadget Labs card locates it's analog-to-digital (AID) and digital-to-analog (D/A) converters on the PCI card inside the computer, while the Layla converters are contained in its one-unit rack-mount break-out box. The Layla includes SIPDIF digital input and output in the basic package, while the Wave 8/24 offers SlPDIF as an extra cost option. I experienced some problems with the Wave 8/24 when attempting eight-channel playback using SFX-Pro, which makes e.xtensive use of the DirectX multi-channel features. (I lmdel' stand Gadget Labs is working on their DirectX dlivers.) It djd however work well \vith SAW Plus32 and the other editing applications and I have since installed the ~ ave 8/24 in another computer and use it for building sound effects. The Layla installed qUickly and easily, and worked perfectly with SFX-Pro using the drivers included with the card.•:. Dave Tosti-Lalle (dtostilane@comisb.edu) is cbair oftbe Pelformance Production department at Comisb College oftbe A/1s (ww/O.comisb.edu). A sound designer and member ofAES, Dave bas also written articlesfor MIX and Cadence magazines. TZ>&T 5 P R I 'G 2 0 0 0 17