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Linear Acoustic AERO.ASI User Guide

Introduction to AERO.ASI

13

1.2

System Block Diagram

Figure 1-2 shows a simplified overall block diagram of AERO.ASI. The processing sections can be
either 5.1 channel or 2.0 stereo capable, and the details of each style of instance are described in sub-
sequent drawings. Note that this drawing shows all options present.

Figure 1-2

AERO.ASI block diagram

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Содержание AERO.ASI

Страница 1: ...AERO ASI Transport Stream Audio Processor User Guide Release Date August 2013 Software Version 0 13 94 and later Linear Acoustic Inc Phone 717 735 3611 FAX 717 735 3612 Web www LinearAcoustic com...

Страница 2: ...action regardless of form arising out of the transactions under this agreement may be brought by buyer its successors agents and or assigns more than three years from date of purchase LIMITATION OF L...

Страница 3: ...To reduce the risk of fire replace only with fuses of the same type and rating Exposed portions of the power supply assembly are electrically hot In order to reduce the risk of electrical shock the p...

Страница 4: ...are eventuali rischi di scossa lettrica o d incendio vanno osservate le seguenti misure di sicurezza Assicurarsi che il selettore di cambio tensione sia posizionato sul valore corretto Assicurarsi che...

Страница 5: ...connected to a power source 1 Open the fuse compartment door in the AC power input housing with a small flat blade screwdriver Figure 1 Carefully pull out the fuse carrier 2 Check that the replacement...

Страница 6: ......

Страница 7: ...ers 18 1 5 1 Reference 18 1 5 2 Audio Input Select 19 1 5 3 Audio Output Routing 20 1 5 4 Ethernet 21 1 5 5 Video Compensation Delay 22 1 5 6 Preset Selection 23 1 6 DVB ASI Setup 24 1 7 Dolby 26 1 8...

Страница 8: ...Linear Acoustic AERO ASI User Guide viii Chapter 3 Factory Presets 39 Chapter 4 Troubleshooting 41 Chapter 5 Specifications 43...

Страница 9: ...ASI Outputs tabs allow source selection for each physical output 20 1 11 Menu of signal sources available for ASI Outputs 20 1 12 IP address remote port MAC address and other system information 21 1...

Страница 10: ...te control setup screen Right AERO ASI negotiates connection with remote 32 2 3 Home screen in non Expert mode default 33 2 4 Top of remote interface 33 2 5 Breadcrumbs trail left right nav and top bo...

Страница 11: ...tyles Instance Style 1 5 1 2 Local Includes LtRt LoRo downmix output OR Instance Style 1 2 2 Local Includes 5 1 channel input downmix Each instance also contains Dolby Digital AC 3 decoder Dolby Digit...

Страница 12: ...ed for DVB ASI Reserved RJ45 Reserved for future use not connected internally ETHERNET RJ45 Auto senses 100 1000 BASE T connect to stable network DVB ASI I O dual BNC Supports processing of up to 4 AC...

Страница 13: ...e 1 2 shows a simplified overall block diagram of AERO ASI The processing sections can be either 5 1 channel or 2 0 stereo capable and the details of each style of instance are described in sub sequen...

Страница 14: ...Linear Acoustic AERO ASI User Guide Introduction to AERO ASI 14 Figure 1 3 shows a detailed view of the 2 0 stereo instance Figure 1 3 2 0 Stereo Instance 2 2 Local...

Страница 15: ...Linear Acoustic AERO ASI User Guide Introduction to AERO ASI 15 Figure 1 4 shows a detailed view of the 5 1 channel instance Figure 1 4 5 1 Channel Instance 5 1 2 Local...

Страница 16: ...ecommend using an uninterruptible power supply UPS on at least one of the AC power feeds separate units should be used for each inlet Since there is no on off switch on the AERO ASI connect AC power t...

Страница 17: ...t Source selection and this flow is illustrated by the light gray boxes below the meters Figure 1 5 Menu shows signal flow A parameter changed from its stored value is displayed in yellow When saved i...

Страница 18: ...s are also present for non DVB ASI testing The unit can be referenced to AES DARS or any AES signal applied to the Ref In connector AES In 1 ASI Internal 48 kHz standalone use only NOTE For use with D...

Страница 19: ...Input Select Since a single physical input can feed multiple instances each instance has a built in router to select audio in pairs Figure 1 8 Available inputs for 5 1 2 Local instance 1 6 7 8 9 10 F...

Страница 20: ...he four possible PIDS for the DVB ASI signal Figure 1 10 The AES and ASI Outputs tabs allow source selection for each physical output Note that any one Instance or Encoder output can go to all physica...

Страница 21: ...signal must be stable and consistent Audio glitches may be audible on air if Ethernet is interrupted Although initially configured for DHCP auto IP address static IP addresses can also be entered expl...

Страница 22: ...Rough timing is accomplished via the Delay control milli second and more precise timing via the Fine control microsecond For PIDs with AC 3 Dolby Digital the correct setting is 345 milliseconds After...

Страница 23: ...e factory default is TV 5B Gen but several others are included and can be selected for each instance Note that Factory presets which cannot be overwritten are white User presets which can be added and...

Страница 24: ...tion The AERO ASI comes pre configured to decode up to four ASI programs Instance 1 source is ASI 1 Instance 2 source is ASI 2 etc Figure 1 17 DVB ASI Source for each Instance Each ASI program then co...

Страница 25: ...each encoder is set to match the incoming data rate At this time it is not possible for the AERO ASI to change the data rate between incoming and outgoing au dio PIDs Please see Section 1 7 below for...

Страница 26: ...Decode 7 8 Dolby E Selects whether 7 8 audio comes from the input or the Dolby E de coder This has no function when decoding Dolby Digital AC 3 Bypass routing Determines where PCM audio goes when the...

Страница 27: ...rmark option is present MAKE SURE to configure network settings and select a valid operational NTP server Then enter the Site ID SID and Check Digits supplied by Nielsen Status will show as Running if...

Страница 28: ...in smooth viewer pleasing audio and compliance The next step is to make sure that the average audio loudness matches the target loudness value set in the final encoder Using the built in metering make...

Страница 29: ...Linear Acoustic AERO ASI User Guide Introduction to AERO ASI 29 Adjust the Target Level dialnorm until it matches the meter Figure 1 25 Adjusting the target level dialnorm to match the meter...

Страница 30: ...Linear Acoustic AERO ASI User Guide Introduction to AERO ASI 30...

Страница 31: ...r the local network to the host computer so different processor patch points can be monitored in real time With appropriate high speed connectivity to the local network offsite remote control and real...

Страница 32: ...quired to connect to the desired unit and Station info Figure 2 2 Left Remote control setup screen Right AERO ASI negotiates connection with remote 5 Press Add to add this unit and its information to...

Страница 33: ...t volume streaming audio headphone vol ume and the host PC s CPU load display at the top of the screen When the display is small these controls combine and a drop down arrow appears allowing you to ac...

Страница 34: ...g your location in the menu hierarchy The left and right arrow buttons allow you to navigate between recently visited controls Figure 2 5 Breadcrumbs trail left right nav and top bottom re size looks...

Страница 35: ...n Expert modes resizing window sections or choosing the number and or type of display windows visible are automatically saved in real time Switching back to this preset from any other automatically re...

Страница 36: ...ation I O meters for each processing instance I O meters for the hardware AERO ASI offers the following signal analysis tools Over sampled digital oscilloscope RTA real time analyzer FFT spectrum anal...

Страница 37: ...tied to the program and the settings are likely to be program specific setup for the loudness meter is done within the program settings The precise patch points available for these tools differ depen...

Страница 38: ...cilloscope and streaming client audio back from the AERO ASI to the remote computer Although it is highly unlikely that your CPU would run out of resources even in a fully configured unit ad dressed f...

Страница 39: ...tistic programming that may have large dynamic range variations It produces consistent loudness and spectral balance ITU 5B Loudness Lim ITU 5 Band Loudness Limit utilizes a specially tuned Multiband...

Страница 40: ...und mixes TV 4B Gen Television 4 Band General is essentially the same as TV 5B Gen below with four audio bands This keeps all other settings the same lessens the density and impact on dialogue and res...

Страница 41: ...linked they all receive the same gain reduc tion and expansion The loudest channel initiates the gain control so it can seem that the surrounds are ducked by dialogue Choose a moderate preset and then...

Страница 42: ...When amplified these ar tifacts can ruin otherwise excellent programming Moral of the story make sure the input audio is im maculately clean or it will sound worse in surround Audio fixed by re boot R...

Страница 43: ...l inputs are unbalanced 75 with internal termination 1 2 3 4 5 6 7 8 AES Ref use BNC F connectors signal levels per SMPTE 276M AES 3ID 2001 All I O can be assigned as needed Remote TCP IP remote contr...

Страница 44: ...Table 5 3 Analog I O DB9 F Dimensions 1RU H 1 75 in 45 mm W 19 in 483 mm D 13 25 in 337 mm Net Weight 12 5 lb 6 kg approximate Environmental Operating 0 50 C Non operating 20 70 C Fan cooled Power Req...

Страница 45: ...h full duplex RS 485 protocol running at 115 kbps Pinout is compatible with SMPTE 207M Pin for pin compatible with Dolby Metadata SMPTE RDD6 Pin Connection 1 Shield 2 TX A asynchronous data out 3 RX B...

Страница 46: ...nd EMC Directive 89 336 EEC Designed for RoHS and WEEE compliance Pin Function 1 5 V 150 mA 2 GPI A Active Low 3 GPI B Active Low 4 GPI C Active Low 5 GPI D Active Low 6 GPI E Active Low 7 GPI F Activ...

Страница 47: ...Linear Acoustic AERO ASI User Guide Specifications 47 NOTES...

Страница 48: ......

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