Antex electronics SX-11 Bedienungsanleitung

1SX-7 SX-9 SX-11 SX-12aSX-20 SX-22 SX-23e SX-26Digital Audio AdapterUser's ManualFor DOSand WindowsJanuary 25, 1996ANTEX ELECTRONICS CORPORATION1

10Audio Output:Line:Unbalanced - RCA jacks, 2VRMS/+6dBV max (digital clipping), with an impedance of 470 ohmsand a load impedance of > 10 k ohmsBal

11Figure 5: SX-9 and 11 Connector LocationsAES/EBU Digital:7 pin Mini DIN jack. Professional AES/EBU: EIAJ CP-340 Type I / IEC-958 Pro or ConsumerS/

12The SX-22 balanced analog I/O levels are specified in dBu, where 0 dBu is 0.775 Vrms or2.19Vpp for a sinewave. If an I/O is connected as unbalanced

13Headphone (SX-22, SX-23e & SX-26):1/4" stereo phone jack, 0.5 VRMS into 600 ohms or greater.AES/EBU Digital (SX-22, SX-23e & SX-26):7 p

14SX22 Balanced I/O to XLR123456789Balanced In - XLR male shell, female pinsLeftRight1- 2+ 3GNDRightBalanced Out - XLR female shell, male pins111+

157 pin Mini DIN Female1352467Digital I/O header - JP7nnnnnnnn13572468 (nc)Pin Assignment1 Ground2 In - AES/EBU -3 Out - AES/EBU+ or S/PDIF+4 In - AES

16DRIVER INSTALLATIONDISKSDisk 1. The "WINDOWS DRIVERS" disk contains Windows drivers and applications (Note: TheDOS 3.2/Windows 2.0 driver

173. In Program Manager, click on File then Run..4. Enter A:SETUP in the command line box, then press OK.5. When the driver installation is complete,

18DOS DRIVER INSTALLATION1. Insert the DRIVERS disk into your floppy drive (assumed to be A:)2. Type A:3. Type INSTALL driveletter:\path to copy all

19USING DOS DEMONSTRATION SOFTWAREOn the enclosed disk is the demonstration software for the SX-7, SX-9, SX-11, SX-12a, SX-20, SX-22,SX-23e and SX-26

2TABLE OF CONTENTSINTRODUCTION...4ABOUT DIGITAL AUDIO ...

20KEY COMMANDS:Q-QuitQuits the demo program and returns to DOS.C-ChannelsAllows choice of channel configuration.MONO-Single channel record/play.STEREO

21CDIB - Compact Disk Interactive level B compression, CD-ROM XA compatible.CDIC - Compact Disk Interactive level C compression, CD-ROM XA compatible.

22To adjust the playback volume, click the mouse over the < or > symbol on the screen. < lowersthe volume from 0 to -30 dB in one dB incremen

23PROBLEMS RUNNING THE DEMOSymptom: The screen appears to be frozen.Solutions:1. Verify that the driver is loaded.2. Make sure you type the correct I/

24USING WINDOWS DEMONSTRATION SOFTWAREFigure 10: The Antex Demo Window.The Antex Demo program allows basic recording and playback of .WAV files in any

25Channels:These buttons select mono or stereo recording, and displays the current files number ofchannels.VU Meters:The VU meters show the relative s

26Record/Stop:Once a file has been selected, pressing the record button will start the recording. Duringrecording, this button changes to "Stop&

27ANTEX MIXERThe ANTEX Mixer allows you to control the volume of the inputs and outputs on the ANTEX digital audiocards. The Mixer is also the way you

28PLAY MODE (Feedthrough)The play bus is a composite mix of all audio inputs with their PLAY buttons pressed. This mix is routedto the output jacks.N

29UTILIZING DIGITAL AUDIO COMPRESSION UNDER WINDOWSAt this point in time Microsoft is in the early stages of supporting various compression formats fo

3FIGURESFigure 1: Analog-to-Digital Conversion...5Figure 2: Digital-to-Analog Conversion...

30Audio Adapter Compression CapabilitiesThe Antex Series 2 and Series 3 product line contains audio adapters with a range of signal processingcapabili

31ISO/MPEG-1 BITRATES & FORMAT EXTENSIONSISO/MPEG supports several compression rates and encodes flags that describe the audio data. Theflags and

32In the Antex driver the bitrate is specified on a per-channel basis. Therefore, requesting 64 kbits/s andstereo will result in a 128 kbits/s compre

4INTRODUCTIONThe Series 2 Digital Audio Adapters are IBM AT compatible add-on boards which convert high fidelityanalog signals to digital data for sto

5The number of these bits generated each second is a function of sampling rate. At a relatively lowsampling rate of 8 kHz (suitable for voice) far few

6of Figure 2. This signal is then passed through a low-pass filter, which removes the digital "switchingnoise." The end result, shown in the

7MINIMUM HARDWARE RECOMMENDEDŸ16 MHz 386-SX or compatibleŸ28 mSec average access hard diskŸ1:1 Interleave hard disk controllerŸMouseŸVGA displayADAPTE

8SX-12a, SX-20There are 5 external connections located on the front surface of the audio board's metal bracket (Fig. 3).Audio Input:Line: RCA jac

9Figure 4: SX-7 Connector LocationsHeadphonesDB-9 Balanced OutUnbalanced RightUnbalanced LeftSX-7JP11LEFTRIGHTGNDPin Assignment1 Gnd23nc4 Right Out -