User manual EMAGIC A26

Hardware >> Version 1.2, August 2003 >> English User's Manual Emagic Soft- und Hardware GmbH-- Software License Agreement PLEASE READ THIS SOFTWARE LICENSE AGREEMENT ("LICENSE") BEFORE USING THE SOFTWARE. BY USING THE SOFTWARE, YOU ARE AGREEING TO BE BOUND BY THE TERMS OF THIS LICENSE. IF YOU ARE ACCESSING THE SOFTWARE ELECTRONICALLY, SIGNIFY YOUR AGREEMENT TO BE BOUND BY THE TERMS OF THIS LICENSE BY CLICKING THE "AGREE/ACCEPT" BUTTON. IF YOU DO NOT AGREE TO THE TERMS OF THIS LICENSE, RETURN THE EMAGIC SOFTWARE TO THE PLACE WHERE YOU OBTAINED IT FOR A REFUND OR, IF THE SOFTWARE WAS ACCESSED ELECTRONICALLY, CLICK "DISAGREE/DECLINE". IMPORTANT NOTE: To the extent this software may be used to reproduce materials, it is licensed to you only for reproduction of materials you are authorized or legally permitted to reproduce. 1. General. 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The EMAGIC Software and related documentation are "Commercial Items", as that term is defined at 48 C.F.R. §2.101, consisting of "Commercial Computer Software" and "Commercial Computer Software Documentation", as such terms are used in 48 C.F.R. §12.212 or 48 C.F.R. §227.7202, as applicable. Consistent with 48 C.F.R. §12.212 or 48 C.F.R. §227.7202-1 through 227.7202-4, as applicable, the Commercial Computer Software and Commercial Computer Software Documentation are being licensed to U.S. Government end users (a) only as Commercial Items and (b) with only those rights as are granted to all other end users pursuant to the terms and conditions herein. Unpublished-rights reserved under the copyright laws of the United States. 10. Controlling Law and Severability. This License will be governed by the laws of the Federal Republic of Germany. 11. Complete Agreement; Governing Language. This License constitutes the entire agreement between the parties with respect to the use of the EMAGIC Software licensed hereunder and supersedes all prior or contemporaneous understandings regarding such subject matter. No amendment to or modification of this License will be binding unless in writing and signed by EMAGIC. Any translation of this License is done for local requirements and in the event of a dispute between the English and any non-English versions, the English version of this License shall govern. 12. MPEG-2 Notice. To the extent that the EMAGIC Software contains MPEG-2 functionality, the following provision applies: ANY USE OF THIS PRODUCT OTHER THAN CONSUMER PERSONAL USE IN ANY MANNER THAT COMPLIES WITH THE MPEG-2 STANDARD FOR ENCODING VIDEO INFORMATION FOR PACKAGED MEDIA IS EXPRESSLY PROHIBITED WITHOUT A LICENSE UNDER APPLICABLE PATENTS IN THE MPEG-2 PATENT PORTFOLIO, WHICH LICENSE IS AVAILABLE FROM MPEG LA, L.L.C., 250 STEELE STREET, SUITE 300, DENVER, COLORADO 80206. Table of Contents 1: Introduction 11 2: A26 Feature Overview 12 2.1 System Requirements 12 2.1.1 Macintosh (OS X) 12 2.1.2 Macintosh (OS 9) 13 2.1.3 Windows 13 2.2 Supported Audio Drivers 14 3: Safety Instructions 15 4: Contents of the A26 Package 16 5: A26 Hardware 17 5.1 Connectors, Switches and Displays 17 5.1.1 USB Connector 17 5.1.2 Analog Inputs and Outputs 17 5.1.3 Headphone Output 18 5.1.4 Headphone Volume Control 18 5.1.5 Digital Input and Output 18 5.1.6 External Power Supply 18 5.1.7 Input Selector 19 5.1.8 Clock Source Selector 19 5.1.9 Status LEDs 20 5.2 Application Examples 21 5.2.1 Analog Recording and Playback 21 5.2.2 Digital Recording and Playback 23 5.2.3 Analog Recording and Playback with external Sync 24 5.2.4 Analog/Digital Conversion 25 5.2.5 Digital/Analog Conversion 27 User's Manual 7 Table of Contents 6: Installation and Updating 28 6.1 Installation on Mac OS X 29 6.1.1 CD-ROM Installation 29 6.1.2 Installation Components 30 6.2 Installation on Mac OS 9.x 30 6.2.1 CD-ROM Installation 30 6.2.2 Internet Installation 32 6.2.3 Installation Components 32 6.2.4 ASIO 33 6.2.5 Sound Manager 33 6.2.6 Switching Between Sound Manager and ASIO 34 6.3 Installation on Windows Millennium 35 6.4 Installation on Windows 98 SE 39 6.5 Installation on Windows 2000 and XP 40 6.6 Driver Updates 42 7: Configuring and Using the A26 43 7.1 Audio Drivers 43 7.2 Selecting the Appropriate Driver 44 7.2.1 Sound Manager, MME and DirectSound 45 7.2.2 ASIO and EASI 45 7.3 Software Controls 47 7.3.1 Macintosh (OS 9.x) 47 7.3.2 Windows 48 7.3.3 Low Bandwidth Mode, Stereo Only, 16 Bit 49 7.3.4 The Reset Default Option 50 7.3.5 Adjusting Latency 50 7.3.6 About the Term "Latency" 52 7.3.7 Audio Bit Depth Controls 53 7.3.8 Setting the Input Level 53 7.3.9 The Mac OS 9 Sound Control Panel 53 7.3.10 The Windows Volume Control 54 7.4 Surround Output Mapping 56 8 Emagic--A26 Table of Contents 8: The A26 and Mac OS X 57 8.1 The Audio Engine of Mac OS X 57 8.2 Sound Preference Pane 58 8.3 Audio MIDI Setup (AMS) 59 8.3.1 Recommended AMS Settings 60 8.3.2 Settings for the A26 60 8.4 Using the A26 with Logic OS X 61 8.4.1 Selecting the A26 as the Audio Device for Logic 62 8.4.2 Selecting the Sample Rate in Logic 62 8.4.3 Selecting the Recording Input in Logic 63 8.4.4 Selecting the Outputs in Logic 63 9: Block Diagrams 64 9.1 Schematic of A26 Signal Flow 64 9.2 A26 Software Driver Architecture (Windows) 65 10: Technical Specifications 66 10.1 Available Combinations of Dynamic Resolution, Sample Rates and Channel Numbers 67 10.2 Signal to Noise Ratio 69 10.3 Dynamic Range 70 10.4 Frequency Response 71 10.5 Application of the Channel Status in the A26 72 11: Troubleshooting 73 12: Glossary 78 EMC Statements 79 User's Manual 9 1 Introduction Thank you and congratulations on your purchase of the Emagic A26. You now own an innovative audio device that equips your Macintosh or Windows PC with high-quality analog and digital audio connectors. The A26 connects to any of your computer's USB ports. Its addition to your system doesn't require opening the computer, nor does it require an external power supply, as power is supplied by the Universal Serial Bus (USB) itself. These features make the A26 an ideal audio interface for Windows laptops, Powerbooks or iBooks, and also very convenient when used with desktop computers. As all electronic circuitry is physically placed outside the computer, the risk of undesirable electronic interference is drastically reduced. This ensures exceptionally clear and clean sound from the A26 and maximizes the potential of its high-quality 24 bit converters. In addition to its hardware design, we have taken great care with the A26 driver software. This ensures that latency is minimal, making the A26 an ideal audio interface for tasks such as the realtime monitoring of software synthesizers, for example. This manual explains the set up procedure for the A26 and offers some application examples. Please read it carefully in order to make the most of your A26. As this manual is cross-platform, much of the information applies equally to both Windows and Macintosh systems. Where information is Macintosh or Windows-specific, it will be indicated by the topic or section header, or by use of the icons shown to the right. We wish you years of fun and productive work with the A26. Your Emagic team User's Manual 11 2 A26 Feature Overview 2 A26 Feature Overview · · · · · · · · Compatible with USB 1.1 or higher 2 analog inputs with RCA connectors 6 analog outputs with RCA connectors 1 digital S/PDIF input with RCA connector 1 digital S/PDIF output with RCA connector Headphone output with discrete volume control and 3.5mm (1/8 inch) stereo jack A/D and D/A conversion at 24 and/or 16 bit resolution Supports sampling rates of 44.1 and 48kHz 2.1 2.1.1 · · · · · System Requirements Macintosh (OS X) CPU: OS X capable Mac with G3, G4 or G5 processor and integrated USB port Memory: 128 MB RAM Drive: CD-ROM or DVD-ROM Interface: A free USB port** Mac OS X 10.2.3 or higher X 12 Emagic--A26 2.1 System Requirements 2.1.2 · · · · · · Macintosh (OS 9) CPU: (Power)Mac 604/200 MHz (with USB PCI card***) or higher. Macintosh with integrated USB port--G3 or G4 processor recommended Memory: 64 MB RAM Drive: CD-ROM or DVD-ROM Interface: A free USB port** Operating System: Mac OS 9.0.4 or higher, or Mac OS X 10.2.3 or higher Using the A26 with Logic Audio requires version 4.7.3 (or higher) of Logic Audio. The necessary updates for version 4.x.x are located on the CD-ROM. Logic Audio users prior to version 4.x.x please contact your local Logic Audio distributor for further update information. 2.1.3 · Windows CPU: Pentium or compatible--233 MHz or higher. (Pentium III, IV or Athlon/600MHz or faster recommended) · Memory: 64 MB RAM. · Drive: CD-ROM or DVD-ROM. · Interface: A free USB port** · Operating System: Windows Millennium (Me) Recommended, Windows 98 Second Edition (98 SE)*, Windows 2000*, Windows XP. *Functionality of the digital input is limited when Windows 98 SE or Windows 2000 are used. **Power is supplied via the USB port. The port used must supply enough current and bandwidth to make full use of the A26. We recommend that the A26 is directly connected to a USB port on the CPU housing, rather than via a hub. An optional Emagic power supply is available, if required. ***Check with the manufacturer of your PCI USB card to confirm that it supports the playback and recording of audio data. User's Manual 13 2 A26 Feature Overview 2.2 · · · Supported Audio Drivers Mac OS X: Apple Audio. Mac OS 9: Sound Manager, ASIO Sound Manager supports 16 Bit stereo audio. ASIO does not have this limitation. Windows: MME, DirectSound, ASIO, EASI. Please note: When using the A26 for the very first time connect the A26 to the USB port of your computer only after it has been completely booted. Please follow the installation procedure afterwards. From now on the A26 can stay connected to the computer permanently. Please check www.emagic.de for updated driver versions and further information. 14 Emagic--A26 2.2 Supported Audio Drivers 3 Safety Instructions There are no user-serviceable parts inside the A26. Please do not try to open its casing. Any attempt to do so will automatically void your warranty. The A26 is powered via USB. If an external power supply is employed, it is strongly advised that only the optional Emagic A26 power supply unit is used. · Do not touch the connector contacts with sharp or metallic objects. · Place your A26 on a non-slip surface. · Avoid the use of the A26 in extremely hot or cold conditions. · Ensure that the A26 is not placed in direct sunlight or near other heat sources. · Protect your A26 from moisture, heavy dust, aggressive liquids and steam. If any moisture gets inside the A26, you should immediately remove all cables and contact Emagic support. · Do not place your A26 near electro-magnetic fields, as this can affect audio quality. Avoid positions near to radios, TVs and video units. · Never carry your A26 with any cables connected to it. · Cleaning the casing of your A26 should only be done with a soft, dry anti-static cloth. Do not use any cleaning solvents or chemical substances for cleaning the unit. If you encounter any problems, please refer to the Troubleshooting section from page 73 onwards. If this information does not provide a solution to your problem, please contact your local Emagic retailer or distributor. · User's Manual 15 4 Contents of the A26 Package 4 Contents of the A26 Package Please check your A26 packaging for the following contents: · · · · · The A26 The A26 satchel A USB cable An installation CD which contains the driver software This manual If any of the abovementioned items are missing, please contact your dealer or local Emagic distributor. In order to connect the A26 to other audio devices, the following items-- not supplied with the package--are required: · · · RCA cables for the analog inputs and outputs. 75 ohm coaxial cables for the digital inputs and outputs. A pair of stereo headphones with a 3.5mm (1/8th inch) stereo plug. Note that the requirement for any, or all, of the items listed above is dependent on how you connect and use the A26. 16 Emagic--A26 5.1 Connectors, Switches and Displays 5 A26 Hardware In this chapter, the connectors and hardware features of the A26 are explained. You will also find several application examples outlined here. 5.1 5.1.1 Connectors, Switches and Displays USB Connector This is the jack used for the connection of the A26 to your computer. A USB cable is supplied. The A26 is compatible with the Universal Serial Bus Revision 1.1 or higher. When the A26 is connected to the USB port of the computer, and the computer is turned on, the blue power LED will be illuminated. The A26 will be ready for use after a self-initialization procedure which takes approximately five seconds. Please note that this assumes that the operating system is properly installed and configured. Also note that only the blue power indicator LED will be lit until all drivers are loaded and available for use by the A26. The A26 can not be used when it is not connected to the computer or when the computer is switched off. 5.1.2 Analog Inputs and Outputs The A26 is equipped with RCA connectors offering two analog inputs and six analog outputs. The output level is 2.8Vpp or 1Vrms, which corresponds to approx. 0dBV or +2.2dBu respectively. This makes the A26 compatible with (consumer) levels of -10dBV (CD players and other "line" devices) as well as with levels of +4dBu (professional studio equipment). A green LED that indicates level is available for each input and output. User's Manual 17 5 A26 Hardware 5.1.3 Headphone Output This jack allows the connection of a pair of headphones with a 3.5mm stereo plug. The headphone output jack mirrors the signals from outputs 1 and 2. 5.1.4 Headphone Volume Control Headphone volume can be adjusted via the volume knob on the front panel of the A26. 5.1.5 Digital Input and Output The A26 offers digital input and output via coaxial S/PDIF connectors. The digital input and output can also be used for synchronizing the A26 with another digital source. The Channel Status of the digital signal is set to "Consumer Use", in accordance with the IEC60958 specification. You may connect a CD player, digital mixer or a DAT recorder to the A26's digital input in order to record their signals digitally. The digital output of the A26 always mirrors the signals from analog outputs 1 and 2. It can be used to connect the A26 to a digital mixer for further processing or a DAT machine for recording. A table in the appendix displays the application of channel status in the A26, according to the IEC standard. 5.1.6 External Power Supply The A26 is powered directly via USB, and requires no external power supply. In some circumstances, however, the USB current delivered by some computers is not clean, or powerful, enough for audio applications and can cause noise artifacts in the audio signals. In these situations/systems, the A26 can also be powered by an external power supply. If an external power supply is connected to the power supply jack, its current is used instead of the current supplied via the USB port. 18 Emagic--A26 5.1 Connectors, Switches and Displays A suitable, high-quality power supply for the A26 is available from Emagic as an optional accessory. This power supply has very precise specifications. Use of another power supply may permanently damage your A26, and will void your warranty. Please ask your dealer or Emagic distributor for further information. 5.1.7 Input Selector This switch is used for the selection of the analog or digital inputs. Only the signal from the selected input will be sent to the computer. It is not possible to mix the analog and digital inputs. 5.1.8 Clock Source Selector This switch allows you to select between the A26's internal clock, or an external clock source connected to the A26's digital input. If no valid digital clock signal is received, the A26 automatically switches to its internal clock and ignores the switch setting. Some digital synchronization examples for the A26 are offered in the following section. User's Manual 19 5 A26 Hardware 5.1.9 Status LEDs The configuration and operating mode of the A26 is indicated by eight status LEDs. The meaning of the LEDs and the corresponding options are explained in the table below: Function LED/switch Meaning Input Digital this LED is lit when the digital input is selected this LED is lit when the analog input is selected Sample 44.1kHz this LED is lit when the selected sampling Rate rate is 44.1kHz 48kHz this LED is lit when the selected sampling rate is 48kHz 24 bit Recording this LED is lit when the selected recording resolution is 24 bit (unlit = 16 bit) Playback this LED is lit when the selected playback resolution is 24 bit (unlit = 16 bit) Clock Intern this LED is lit when the A26's internal Source synchronization is selected Extern this LED is lit when external synchronization from the digital input is selected Analog Where to switch the input can be selected via the leftmost switch the sampling rate is selected on the connected computer the bit resolution is selected on the connected computer the clock source for synchronization is selected via the clock source switch on the A26 20 Emagic--A26