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E-Mu 204, Руководство пользователя

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Technical Specifications

0204 USB Owner’s Manual

21

TECHNICAL SPECIFICATIONS

General

• Sample Rates: 44.1, 48, 88.2, 96, 176.4, 192kHz from internal crystal with no 

sample rate conversion *

• Bit Depth: 24-bit I/O, 32-bit processing
• USB 2.0 Hi-Speed

• Full 24-bit resolution at all sample rates
• 2 in/4 out channels 

• Zero-latency direct hardware monitoring 

(Direct monitor on channels 1/2 only at 176.4/192kHz sample rates)

• Windows drivers: ASIO2 and WDM
• Macintosh driver: Apple CoreAudio
• Anti-Pop speaker protection minimizes noise during power on/off
• Ultra-low jitter clock subsystem: <100ps RMS

Combo Preamplifiers

• Type: 

• (1) Ultra-low noise combo preamplifier with Mic/ Hi-Z/line inputs
• (1) Combo preamplifier with Hi-Z/ balanced input
• (1) 1/8” condenser mic input with 5V power

• A/D Converter: AK5385
• Max. Level: +6.5dBV (+8.7dBu)
• Input Impedance: 1.5 kOhms
• Frequency Response (min gain, 20Hz-20kHz): +0.0/-0.07dB
• Dynamic Range (A-weighted, 1kHz, min. gain): 113dB
• Signal-to-Noise Ratio (A-weighted, min. gain): 113dB
• THD+N (1kHz at - 1dBFS, min. gain): -101.9dB (.0008%)
• Ultra-low noise preamplifier (Mic/Hi-Z/line inputs)

• Input Impedance: 1.5Kohm
• EIN (20Hz-20kHz, 150ohm, unweighted): -127dBu

• Combo preamplifier with Hi-Z/line balanced input - Input Impedance: 

1Mohm

Analog Line Outputs (2)

• Type: balanced, AC-coupled, 2-pole low-pass differential filter
• D/A converter: AK4396
• Max Level: 6.7 dBV (unbalanced)
• Frequency Response (20Hz - 20kHz): 0.00/-0.01dB
• Dynamic Range (1kHz, A-weighted): 117dB
• Signal-to-Noise Ratio (A-weighted): 117dB
• THD+N (1kHz at -1dBFS): -101.9dB (.0008%)
• Stereo Crosstalk (1kHz at -1dBFS): -111dB

Содержание 204

Страница 1: ...0204 USB Owner s Manual 1 Owner s Manual Owner s Manual ...

Страница 2: ...10 E MU Systems All Rights Reserved Revision Revision A E MU World Headquarters E MU Systems 1500 Green Hills Road Scotts Valley CA 95066 USA Europe Creative Labs Ireland Ltd Ballycoolin Business Park Blanchardstown Dublin 15 IRELAND ...

Страница 3: ... OS X 9 Uninstalling the Audio Drivers and Applications 11 Connection Diagram 12 Controls Headphone Output 13 Input Output 14 E MU USB Audio Control Panel 15 Headphone Source 16 Direct Monitoring 17 Audio Recording Software 18 Troubleshooting 19 Internet References 20 Forums 20 Technical Specifications 21 Adapter Cables 23 1 8 Headphone to 1 4 Headphone Adapter 23 Stereo Headphone to 2 x 1 4 Jack ...

Страница 4: ...4 E MU Systems ...

Страница 5: ... of the other key features are detailed below Record and playback support for a multitude of sample rates 44 1k 48k 88 2k 96k 176 4k 192k 176 4k 192k available on PC version only Zero latency direct hardware monitoring disabled at 176 4k and 192k on the Macintosh Full 24 bit resolution and stereo in stereo out at all sample rates NOTE There are some limitations when operating at higher sample rate...

Страница 6: ...B cable 0204 USB installation guide E MU Software Manual CD ROM OS X Windows Windows XP Windows Vista x64 Windows 7 x64 drivers Mac OS X drivers Owner s manual and tutorials Acoustica Mixcraft LE 4 Install CD ROM Windows Acoustica Mixcraft LE multitrack recording application ...

Страница 7: ...t 1GB System RAM 950 MB of free hard disk space for full installation CD ROM CD RW or DVD ROM drive required for software installation XVGA Video 1024 x 768 OS X Apple Macintosh Intel based processor 1 2 GHz or faster NOTE For more information on Intel Mac support see the included ReadMe file and or www emu com for latest information Apple Macintosh OS X 10 5 or greater 1 Available Hi Speed USB 2 ...

Страница 8: ...indows Logo Testing When you install the 0204 USB drivers you will see a dialog box informing you either that the driver has not been certified by Windows Hardware Quality Labs WHQL or that the driver is signed by Creative Labs Inc and you will be asked if you would like to continue with the installation The 0204 USB audio drivers are not certified by WHQL because the product does not support some...

Страница 9: ...low the instructions on the screen to continue the installation You will be given the option to install Easy Install Installs the following applications and drivers E MU 0204 USB USB Drivers and Control Application Custom Install allows you to choose which components are installed 7 Easy Install is recommended The software will be quickly installed When prompted restart your computer 8 Be sure to ...

Страница 10: ...he software bundle and get the most out of your purchase You ll also need a MIDI interface such as the E MU Xmidi 2x2 or Xmidi 1x1 14 Click the MIDI Devices button The window shown below appears 15 Click the Add Device button A new external device icon like the one shown at right appears 16 Double click on the new external device if you want to set the MIDI Keyboard Properties You have the option ...

Страница 11: ...ers and Applications At times you may need to uninstall or reinstall the 0204 USB application and device drivers to correct problems change configurations or upgrade outdated drivers or applications Before you begin close the E MU USB 2 0 Audio control panel application Applications running during the uninstallation will not be removed 1 Open the Applications folder 2 Open the Creative Professiona...

Страница 12: ...RNING Use only a USB 2 0 certified Hi Speed cable like the one supplied for the USB connection Using a USB 1 1 cable may cause erratic behavior and degraded performance Computer Microphone or Line 1 4 male to 1 4 male unbalanced Powered Speakers Electret Mic ...

Страница 13: ... have to turn it more than one revolution to set the desired level 4 Direct Monitor On Off Mono Stereo Switch Press the button to turn Direct Monitoring on and off and to switch modes The stereo LED illuminates The left and right channels are passed through to their respective outputs at the level set by the Direct Monitor Level control Press the button again to sum the left and right direct monit...

Страница 14: ...y on PC 10 R Hi Z Line Input This 1 4 input can be used as a Hi Z instrument input guitar bass etc or a line level input The input is balanced but accepts either balanced or unbal anced signals 11 L 1 8 Mic Input This 1 8 mini phone jack is designed to accept an electret condenser micro phone The jack supplies 5VDC phantom power required by electret mics 12 L Hi Z Line Mic Input Use the XLR connec...

Страница 15: ...n Ctrl H Windows You can restore the application by clicking the E MU icon in the System Tray Windows or by clicking the E MU icon in the Dock OS X 3 Help About E MU 0204 USB Audio control Launch Manual Check Updates 4 Device If you are using more than one E MU USB Audio device you can choose which unit is currently being controlled 5 Sample Rate NOTE Macintosh operation up to 96kHz only at this t...

Страница 16: ...ng you ll normally want if you re only using one pair of outputs such as stereo recording playback or listening to music This is the default setting Separate Headphone Mix By selecting Headphone Source Aux 3 4 you can create a separate headphone mix for live performance or while recording Two Additional Outputs With an appropriate cable adapter see page 23 the headphone output becomes another pair...

Страница 17: ...o the output when recording so that you can hear your performance without delay The Direct Monitor level control lets you adjust the volume of the input signal in relation to the recorded tracks Direct monitoring is controlled manually from the Direct Monitor switch on the 0204 USB It s not necessary to turn it on in your recording application Direct Monitoring vs Software Monitoring Direct monito...

Страница 18: ...acintosh recording application with the 0204 USB however you can use Garage Band a very cool music application that probably came bundled with your Mac This application works well with the 0204 USB and will get you started with audio recording NEED MORE HELP If you need additional help please see Windows Program Files Creative Professional E MU 0204 USB Documents 3rdParty htm OS X Applications Dri...

Страница 19: ...pitched tones digital hash in the background as well as the familiar 50 60 cycle hum Ground loops are caused by a difference in ground potential between two pieces of equipment Computer audio devices are particularly susceptible to ground loops because most computers were not designed with high quality audio in mind The E MU 0204 USB contains built in ground lift switches for both analog inputs in...

Страница 20: ...re connecting or disconnecting the USB cable Hot plugging the unit with the power on can cause the 0204 to power up in USB 1 1 mode If you see the Windows message This device could perform faster simply turn power off wait a few seconds then turn power on again INTERNET REFERENCES The internet contains vast resources for the computer musician A few useful sites are listed here but there are plenty...

Страница 21: ...e inputs 1 Combo preamplifier with Hi Z balanced input 1 1 8 condenser mic input with 5V power A D Converter AK5385 Max Level 6 5dBV 8 7dBu Input Impedance 1 5 kOhms Frequency Response min gain 20Hz 20kHz 0 0 0 07dB Dynamic Range A weighted 1kHz min gain 113dB Signal to Noise Ratio A weighted min gain 113dB THD N 1kHz at 1dBFS min gain 101 9dB 0008 Ultra low noise preamplifier Mic Hi Z line inputs...

Страница 22: ...8dB Dynamic Range A weighted 117dB Signal to Noise Ratio A weighted 117dB THD N 1kHz max gain 300ohm load 101 9dB 0008 Stereo Crosstalk 1kHz at 1dBFS 300 ohm load 107dB Synchronization Internal crystal sync at 44 1 48 88 2 96 176 4 192kHz Dimensions Weight Weight 0 94 lb 0 43 kg Dimensions W 6 5 H 2 0 L 5 5 W 165 mm H 50 8 mm L 140 mm Macintosh operation up to 96kHz only at this time check www emu...

Страница 23: ... 8 Headphone to 1 4 Headphone Adapter TIP RING Stereo Headphone to 2 x 1 4 Jack Splitter Cable This type of adapter allows you to use the Headphone jack as another pair of line outputs The tip and ring of the headphone plug are split off into separate outputs ...

Страница 24: ...e designed to provide reasonable protection against harmful interference in a residential instal lation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference to radio or television reception which can be determined b...

Страница 25: ...55022 1998 Class B Australia New Zealand Compliance Information AS NZS CISPR 22 2002 Class B using EN55022 1998 Class B Japan Compliance Information VCCI April 2005 Class B using CISPR 22 1997 Class B ANSI C63 4 2003 method VCCI Acceptance Nos R 2160 C 2332 Attention for the Customers in Europe This product has been tested and found compliant with the limits set out in the EMC Directive for using ...

Страница 26: ...Mic In Gain Meter Bal Unbal Line Instr In Bal Unbal Line Instr In Ground Lift Ground Lift USB Playback computer Mono Stereo Off Direct Monitor Level Headphone Source Headphone Volume Meter RIGHT LEFT MAIN L MAIN R Phones Out Gain DAC DAC DAC USB Record computer 0204 USB BLOCK DIAGRAM ADC ADC DAC Select from E MU USB Control Panel 5V Electret Mic In ...

Страница 27: ...adphone Source 16 Hi Z Input 14 I Inputs 14 Internet References 20 L Latency 17 Lost Communication 19 M Main Output Volume Control 14 Monitoring direct vs software 17 O Output Volume Control 14 Outputs 3 4 16 P Package Contents 8 Pops Crackles 19 R Recording Software 18 S Signal Level Indicators 13 Signal Routing Diagram 26 Simultaneous WDM ASIO AC 3 Playback 20 Skin selecting 15 Software Installa...

Страница 28: ...Index 28 E MU Systems ...

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