Dbx 4800 Software

dbx introduced the new DriveRack 4800 System Processor, which provides versatility and intuitive control for live performance applications and is the next generation of the line of DriveRack processors. Featuring all the familiar processing functions and a host of new algorithms, including dbx’s Advanced Feedback Suppression (AFS™), the DriveRack 4800 is designed to provide the front-of-house (FOH) engineer, monitor engineer and systems design contractor with the necessary control tools for any live sound reinforcement situation.

Find many great new & used options and get the best deals for dbx DriveRack 4800 Loudspeaker Management System at the best online prices at eBay! Free shipping for many products! The Dx38 comes with a detailed manual plus RACE software which includes current EV speaker and amp data. DBX ZonePro 1260, 1261. DBX Driverack 4800.

The unit’s 96kHz processing engine and standard digital I/O extends frequency response and reduces latency, while an optional CobraNet™ card enhances the versatility. Using four analog and AES/EBU inputs, with eight analog and AES/EBU outputs, the DriveRack 4800 also features Harman Professional’s latest HiQnet™ protocol.

The DriveRack 4800 is the next generation of the famous DriveRack family, and like its predecessor it is engineered to provide 'Everything you need between the mixer and the power amps'. In keeping with this philosophy the 4800 includes four inputs and eight outputs with both analog and digital connectivity. DBX 4800TI DriveRack 4800 Loudspeaker Management System with Jensen Input Transformers, 48 and 96 kHz operation, Color QVGA Display, 4 analog and AES/EBU inputs, 8 analog and AES/EBU outputs, Full Bandpass Filter, Crossover and Routing Configurations with Bessel, Butterworth, and Linkwitz-Riley filters, 31-Band Graphic and 9-band Parametric EQ on every input, 6-band Parametric EQ on every. The Wizard function makes the DriveRack 4800 easy to use, providing a menu-based setup procedure for system configuration, Auto-EQ, and Advanced Feedback Suppression™ (AFS™). Technical Tools Manufacturer Data Sheet - dbx - DriveRack 4800. DriveRack ® Introduction Congratulations on your purchase of the dbx DriveRack 4800 or 4820 system processor! Designed ® ® INTRODUCTION to provide “Everything you need between the mixer and the power amps,” the 4800 and 4820 provide incredible flexibility, sonic excellence, and intuitive control for performance applications.

Dbx DriveRack 4800 Pdf User Manuals. View online or download Dbx DriveRack 4800 User Manual, Specification Sheet. System Architect Control Software.

The HiQnet control backbone can be used to monitor and control signal routing, as well as the processing of multiple DriveRack 4800 units from various locations, all using standard Ethernet equipment including routers and wireless access points. HiQnet control extends to the new Harman Professional System Architect GUI, which provides user-assignable signal routing, control groups and customized control panels.

Harman Professional System Architect GUI supplies complete manipulation capability of not just the DriveRack 4800 but also any other HiQnet-enabled Harman Professional products, such as Crown I-Tech amplifiers, JBL DrivePack loaded speakers, AKG WMS 4000 wireless microphones and the Studer Vista 8 mixing console.

The dbx DriveRack 4800 is available for $3,749.95.

For more information, please go to www.dbxpro.com and mixonline.com/livesound/products.

Dbx 4800 software setup

download

HiQnet Audio Architect v2.25.0 (Windows 7 SP1, 8.1, 10) [453 MB]


System requirements:

64-bit versions of Windows 7, Windows 8.1, Windows 10

Minimum Performance Guidelines:

CPU: 64-bit dual core @ 2.0GHz or better, 4GB of RAM

Optimal Performance Guidelines:

Audio Architect is a computationally intensive application. The hardware requirements needed to run Audio Architect optimally depend on your venue file. Number of devices and custom panels are the biggest contributors to the amount of memory required. Not having enough memory will have the biggest impact on performance. As a rule of thumb, the amount of memory required should be at least (3GB + 100MB x number of devices).

While the number of processor cores can improve performance, processor clock speed will have a bigger impact on performance.

Note: Local Administrator user rights are required to install Audio Architect. If you are having difficulty installing Audio Architect and are aware that you do not have Local Admin rights on your computer, consult your IT department for access.

HiQnet Audio Architect™ audio system design and configuration software application retains the revolutionary system design philosophy centered on operational workflow first introduced in HiQnet System Architect™.

In creating Audio Architect, Harman has also incorporated the BSS Audio Soundweb London DSP system backbone within the core functionality of System Architect – combining the power of Harman's proven open-architecture platform with AKG wireless microphones, dbx processors, Crown amplifiers and JBL powered loudspeakers.

New in Audio Architect version 2.25.0

● Main Application

○ Added support for Dante 4.0

○ Improved performance in Dante routing

● Crown

○ Added support for DCi 4 300DA, DCi 4 600DA and DCi 8 300DA

New in Audio Architect version 2.20.0

● Main Application

○ Venue level support for Dante Routing in Venue Options

○ Improved performance in Dante matrix router

○ Fixes for Dante Routing with in Audio Architect

● BSS Audio

○ Fixes for reboot issues with Contrio Server

○ Fixed naming issues with objects assigned in Contrio Wall Controllers

New in Audio Architect version 2.15.2

● Main Application

○ Fixed issues with custom panels and controls

○ Fixed loading issues with large venue files

● Crown

○ Updated DCi-DA amplifiers firmware to 1.0.2.2 with option to set device name through Dante Controller

○ Fixed Crown rack panel help file link

New in Audio Architect version 2.15.1

● Main Application Beat maker 2 for android free download.

○ Fixed issues that would cause the application to crash when loading large venue files

New in Audio Architect version 2.15.0

● AKG

○ Fix to Wireless System Frequencies Setup issues in Windows 10

● BSS

○ Updated firmware to 86.04.2 with fix to Dante Card renaming issue

Driverack 4800

○ Fixes for logic surface issues in Contrio Server

● Crown

○ Added Speaker Tuning support for CDi DriveCore amplifiers

○ Added support for CDi DC 2 1200, CDi DC 2 1200BL, CDi DC 4600, CDi DC 4600BL, CDi DC 4 1200 and CDi DC 4 1200BL

○ Firmware update to 2.0.4.0

New in Audio Architect version 2.10.0

● Main application

○ Fixed Access Controlled Auto Log in not working with offline venue devices

○ Fixed Backward Compatibility issue with Dante Input block signal names

○ Fixed high DPI display issues

○ Fixes for localization issues with European versions of Windows

○ Improved Performance in Dante Matrix Router

New in Audio Architect version 2.06.0

● Motion Control

○ Now works with BLU-806DA, BLU-326DA, and BLU-DA

○ Fixed issue where node address would reset to zero if there was not a configured DNS

Fixed issue where the application deleted a panel after update to 1.1.6(2)

● Crown

○ AES67 support for DCi-DA amplifiers

New in Audio Architect version 2.05.0

● Crown

○ Added Array Size Compensation filter

New in Audio Architect version 2.00.0

● Main Application

○ Added Dante Controller routing functionality in Route Audio mode

○ Removed ‘Reset Parameter Values’ from control panels

○ Performance improvement when loading large venue files

○ Improved support for high DPI displays

● BSS Audio

○ Added support for AES67 in BLU-806, BLU-326 and BLU-DAN

▪ Renamed BLU-806 to BLU-806DA to reflect AES67 capability

▪ Renamed BLU-326 to BLU-326DA to reflect AES67 capability

▪ Renamed BLU-DAN to BLU-DA to reflect AES67 capability

○ Added ‘UDP Only’ transport type for VoIP

○ Logic simulation now defaults to off

● Crown

○ New firmware for DCiN series with improved security modes (protocol lockout)

New in Audio Architect version 1.96.0

● BSS Audio

○ Added restrictions to media types for Contrio Server. The media sample rate and channel count must now match the sample rate and channel count of the media engine. This is to improve performance and reduce the risk of audio drop

○ Contrio Server can now heal failed device with the same device

○ Added Soundweb model numbers to rack image to aid in visual identification

○ Source Selector and Source Matrix with 'Use Signal Names' enabled in Properties will now pass input signal names when assigned to BLU-10

● Crown

○ Added support for CDi DriverCore amplifiers

○ Added support for DCi-DA amplifiers with Dante

New in Audio Architect version 1.95.5

● Main application

○ Workaround for .NET 4.6 compiler issue that prevented Soundweb devices from being dropped on the venue view

New in Audio Architect version 1.95.4

● AKG

○ Improved Live View Mode with the introduction of channel strips

○ Resolved addressing of Non-HiQnet devices on venue

○ Fixed critical crash on Location Management page

○ Updated icons for AKG devices in Device Explorer

● BSS Audio

○ Contrio Wall Controllers: Fixed Auto-IP memory corruption issue

New in Audio Architect version 1.95.3

● BSS Audio

○ Fixed DHCP Gateway issue for address 0.0.0.0 for Contrio wall controllers

New in Audio Architect version 1.95.2

● BSS Audio

○ Added ability to select Dante port in Contrio server

○ Fixed network stack issue with Contrio Wall Controllers going offline and needing a reboot when in networks containing a large number of controllers/devices

○ Improved Contrio Wall Controllers firmware update process and overall product stability with updated firmware. Once at this new version older 1.x.x firmware versions are no longer compatible

New in Audio Architect version 1.95.1

● BSS Audio

○ Updated Contrio wall controller firmware

○ Fixed BLU-10 simulation crash

New in Audio Architect version 1.95.0

● Main Application

○ Improved support for VPN connections

● BSS Audio

○ Added BLU-10

○ Added alignment tools on configuration windows

○ Performance and usability improvements to media playback in Contrio Server

New in Audio Architect version 1.90.1

● Main Application

○ Fix backwards compatibility issues with Contrio wall controllers and Crown control ports

New in Audio Architect version 1.90.0

● Main Application

○ Added object linking. Requires a Contrio Server in the venue file

● BSS Audio

○ Added BLU-805/325 AVB devices

○ Added ability to change HiQnet address of audio processing objects

○ Added ability to add multiple processing objects from right-click drag drop

○ Added ‘Fit to Grid’ to allow processing objects to be positioned next to each other without wasting grid spaces

New in Audio Architect version 1.80.4

● Main Application

○ Added support for BLU-103 VoIP number control on Motion Control panels

● AKG

○ Added new firmware for HUB 4000Q, DSR700, and DSR800.

● BSS Audio

○ Fixed issue with Contrio wall controllers whereby they would not switch automatically from DHCP to auto IP

○ Fixed issue of incorrect IP type being displayed in NetSetter for Contrio wall controllers

○ Fixed DI tool for subscribing to string parameters

New in Audio Architect version 1.80.3

● BSS Audio

○ Fixed issues in logic simulation caused by copy/paste and deleting of wires

New in Audio Architect version 1.80.2

● Main Application

○ Restricts networking to only start on a single instance of Audio Architect

○ Fixed auto-login when opening Audio Architect from double-clicking venue file

● BSS Audio

○ Firmware

▪ Updates to network stack in Soundweb devices to improve resilience to sustained levels of multicast and broadcast traffic

▪ Updated CobraNet firmware to handle sustained high level of bundle changes

○ Fixed performance issue adding lots of media files to the media engine at once

New in Audio Architect version 1.80.1

● HiQnet NetSetter

○ Fixed incompatibility with Windows 10

● BSS Audio

○ Allowed telephone input card controls to be controlled via HiQnet Motion Control. This requires Motion Control v1.1. Currently the BLU-103 number control cannot be used in Motion Control

● Crown

○ Updated DCiHD firmware to 1.0.0.11

New in Audio Architect version 1.80.0

● Main Application

○ Added hierarchical rooms to support for floor, building, and campus views

○ Access Control

▪ Added auto log-off

▪ Added event log filtering and e-mail on a per-user basis

○ Removed option for ‘All Adapters’. Adapters must be selected individually

○ Added right-click option to move Racks, Rooms, and Floors in to other Rooms, Floors, and Buildings

○ Moved Room color settings to Venue Options

● BSS Audio

○ Added support for BLU-103

○ Added support for two simultaneous Soundweb Contrio servers

○ Contrio Server now logs when devices come online and go offline

○ Control Panels can be readdressed via sub-configurations

○ Allowed telephone input card controls to be controlled via HiQnet Motion Control. This requires Motion Control v1.1

● Crown

○ Added DCi 2x2400N and DCi 4x2400N

New in Audio Architect version 1.75.0

● AKG

○ Added support for DSR800

○ HUB4000Q

▪ Firmware update 4.11.00.00

○ DSR700

▪ Firmware update 2.1.4

▪ Fix for Flutter Noise

▪ Fix for chirping noise in case of change in the gain in pocket transmitter

○ Added Location Management

▪ Postal code database for TV channels

○ SR4500 South Korean bands incorporated

New in Audio Architect version 1.70.0

● Main Application

○ Allow multiple device tabs open at once

● BSS Audio

○ Added Soundweb Contrio HiQnet Server with Dante (Beta)

▪ Media engine playback

▪ Store parameter presets when online

▪ Self-healing

▪ Logic Lua scripting

○ Added support for Soundweb BLU-DAN

○ Added folders for links

○ Added sub-configurations

New in Audio Architect version 1.60.2

● Main Application

○ Added Venue File Templates, accessible from the ‘Open Template’ menu entry in the File menu

○ Fixed discovery issue with Windows 8.1

○ Fixed ‘Open from device network’ not finding devices on the network

○ Fixed crash on exit of application with some venue files

● BSS Audio

○ Full release of Soundweb Contrio wall controllers

▪ EC-V ▪ EC-4B ▪ EC-4BV ▪ EC-8BV

○ Added check when going online that Dante names were valid

New in Audio Architect version 1.60.1

● BSS Audio

○ Fixed crash opening wire surface when Japanese characters were used

● JBL

○ Fixed issue where SRX800 Series speaker model could be corrupted when copying / pasting settings

○ Updated SRX800 Series firmware

▪ Fixed high and low voltage fault reporting

○ Fixed SRX800 Series help file link

New in Audio Architect version 1.60.0

● Main Application

○ Network adapters are now selected based on adapter rather than IP address

● BSS Audio

○ Added BETA support for Soundweb Contrio wall controllers

▪ EC-V ▪ EC-4B ▪ EC-4BV ▪ EC-8BV

○ Added mute indication and toggle button to processing object outputs in Configure Audio window for Soundweb London devices

○ Added auto scroll when moving and wiring in Configure Audio and Configure Logic windows

● Crown

○ I-Tech HD Series

▪ Firmware update 1.0.5.8

○ DCi Network Series

▪ Firmware update 1.0.2.16

○ DCi Network Display Series

▪ Firmware update 1.0.2.7

● JBL

○ Added SRX800 Series powered loudspeakers

▪ SRX812P ▪ SRX815P ▪ SRX835P ▪ SRX818SP ▪ SRX828SP

New in Audio Architect version 1.50.1

● AKG

○ Updated DMS700 firmware

● Crown

○ Updated AVBX installer

○ Fixed issue that caused I-Tech speaker processing to be inaccessible

● JBL

○ Fixed metering issues on the Master Panels of DPDA devices

New in Audio Architect version 1.50.0

● Main Application

○ Added Simulate Venue mode enables running the Venue without being online to devices

○ Added ‘Add discovered devices to venue automatically’ Application Option

▪ This functionality mimics the System Architect behavior of automatically adding devices to the Venue when they are discovered on the network

▪ This option does not add BSS Audio Soundweb London devices automatically since they would be added without their existing design

○ Added ‘Automatically navigate to Run Venue’ Application Option

▪ This option forces Audio Architect to go directly online when discovered amplifiers have been added to the Venue automatically

○ Improved performance for the Configure Audio and Configure Logic sub-modes within the Soundweb London device mode

○ Added optional error reporting back to Harman to help improve application user experience

○ Proxies are now synchronized between Audio Architect and NetSetter

● AKG

○ Added support for AKG parameters in the Third Party Controller device mode

● BSS Audio

○ Added support for Soundweb London BLU-8v2 wall controller

○ Added support for Soundweb London BLU-80, BLU-32, and BLU-16 devices

○ Added Room Combine processing object and control functionality to the Venue

○ Added support for Wire Tags in the Configure Audio and Configure Logic sub-modes

○ Fixed Dynamic Meters not functioning correctly in some configurations

● Crown

○ I-Tech HD Series

▪ Firmware update 1.1.3.4

▪ Minor bug fixes

○ DCi Network Series

▪ Firmware update 1.0.2.15

▪ Fix to rare BLU link audio popping

○ XTi 2 Series

▪ Firmware update 2.0.5.1

▪ Fixed signal LED

○ Assorted user interface improvements

● JBL

○ Added device presets for Cinema and Installed Sound

New in Audio Architect version 1.40.2

● AKG

○ Updated firmware for DMS700

New in Audio Architect version 1.40.1

● Main Application

○ Fixes for localization issues with European versions of Windows

Dbx 4800 software mac

○ Fix for recall of Crown amplifier parameter values within Soundweb London presets

New in Audio Architect version 1.40.0

● Main Application

○ Added support for new Custom Panel Region Meter Button control

○ Added support for AVB routing and the world's first AVnu-certified AVB devices, the Crown DCi 4 1250ND and DCi 8 600ND amplifiers

○ Improved support for HiQnet Motion Control

○ Added ability to include Crown parameters in BSS Audio Soundweb London links

○ Numerous performance improvements and other fixes

● AKG

○ Graphical representation of all AKG devices on the Audio Architect Venue

○ Association of all AKG devices with HUB 4000Q connection slots on the Venue

○ '1 Click Setup' wizard to perform an environment scan, calculate intermodulation-free frequencies and configure the full wireless system with a single mouse click

○ New AKG wireless Device Mode for AKG wireless microphone system solutions including Live, Frequency and Time (realtime RF monitoring) modes

○ Live mode:

▪ Editable channel properties such as name, frequency, country, channel, encryption etc

▪ Device Locate, Mute, and On / Off

▪ RF, AF and Battery Level meters

▪ Online / offline status

▪ Firmware updater for devices connected to a HUB 4000Q

○ Frequency mode:

▪ Frequency against RF level graphical representation of all wireless channels in the system

▪ Environment Scan operations: Start, Loop, Clear, Stop, Save, Open and Print

▪ The ability to set a Loop Scan

▪ The ability to view intermodulation products on the frequency / RF level graph

○ Time mode:

▪ Provides realtime and history monitoring of RF level, antenna status and diversity error reporting

● Crown

○ Added support for AVnu-certified AVB-compatible DriveCore Install Series amplifiers:

▪ DCi 4 1250ND

▪ DCi 8 600ND

○ DCi N / DCi ND new features:

▪ Pilot Tone v2 (with Burst Mode)

▪ Sidechain EQ filters

○ Assorted user interface improvements

● BSS Audio Soundweb London

○ Added support for the new BLU-50 signal processor with BLU link

○ Added support for pinnable / hover Dynamic Meter mouse pointer function within the Audio wiring view

HiQnet Motion Control

○ Maintains connections and subscriptions through App 'sleep' state

○ Maintains connections and subscriptions while a connected HiQnet device goes offline and restores when returning online

○ Improvements to device discovery and retention

○ Support for BSS Audio Soundweb London BLU-806

○ Meter support for BSS Audio Soundweb London devices

○ Added support for multiple instances of Motion Control on a single HiQnet network

○ iOS 7 performance and operational improvements

○ General stability and network enhancements

New in Audio Architect version 1.30.2

● Main Application

○ Improved load time of venues that contain a large number of BSS Audio Soundweb London links

New in Audio Architect version 1.30.1

● Crown

○ Updated USBX firmware

○ Fixed synchronization bug with CTs 4200USP/CN and CTs 8200USP/CN

New in Audio Architect version 1.30.0

● Main Application

○ New automatic Locate tool

▪ When enabled, the front panel of connected hardware enters the ‘Locate’ state automatically, as determined by the device selection in the Venue Explorer or Venue

○ Improved user interface and performance for Soundweb London Presets

○ Performance improvements and other fixes

● BSS Audio Soundweb London

○ Added support for the Soundweb London BLU-101 Conferencing Processor with AEC

○ Added support for the Soundweb London BLU-102 Conferencing Processor with AEC and Telephone Hybrid

○ Added support for AEC and Telephone Hybrid processing objects in the Soundweb London Route Audio mode

● Crown

○ Assorted user interface improvements

New in Audio Architect version 1.20.2

● Third-Party Controller enhancements:

○ Object IDs in the Venue Explorer and Third-Party Controller mode can be displayed in hexadecimal, decimal, numeric or octals

○ Two additional columns have been added to the Third-Party Controller mode .csv export to support hexadecimal and decimal addressing

○ The HiQnet Object ID is now displayed in the Soundweb London Configure Audio mode Properties window for the selected audio Processing Object

○ The HiQnet Object ID is now displayed in the Soundweb London Configure Logic mode Properties window for the selected logic Processing Object

New in Audio Architect version 1.20.1

● Third-Party Controller enhancements:

○ Object IDs are now visible in grid

○ Object IDs can be viewed in hex or decimal

○ Description of the contents of the string for the selected parameter or preset has been added for easy reference

● BSS Audio Soundweb London

○ Fixed issue that was causing Soundweb London devices to take longer than expected to synchronize

○ Fixed a rare issue that would cause the application to crash when loading venue files that contained Soundweb London devices

New in Audio Architect version 1.20.0

● Main Application

○ New Third-party Controller device

▪ Collation of system-wide parameters and presets within a dedicated Third-party Controller device mode

▪ All parameter functions supported:

▪ Subscribe

▪ Unsubscribe

▪ Get

▪ Set

▪ Bump up / down

▪ Preset recall supported:

▪ Soundweb London presets

▪ Device Presets

▪ Any number of Third-Party Controller devices may be added to assist with segregating parameters and presets appropriately

▪ Export to comma-separated value (*.csv) files for import into third-party control system configuration software

▪ Preset formats for AMX and Crestron export with ability to customize for other formats

○ Added customizable auto-save functionality

○ Venue and Soundweb London design zoom point now derived from current mouse pointer position

○ Improvements to the Venue and Soundweb London design canvases by enabling scrolling beyond the limits of the design in all directions

○ Improved network performance

○ Improved Custom Panel performance

● AKG HUB 4000 Q

○ Updated firmware

● BSS Audio Soundweb London

○ Added support for Soundweb London BLU-GPX

○ London Architect ‘Save to Device Network’ functionality added

○ Improved compiler report

● Crown DriveCore Install Series

○ Added support for DCi 2 1250N, DCi 4 1250N

○ Added Master Crossover Panels

○ Added Speaker Tuning Advanced View

Dbx 4800 Software Manual

○ Updated firmware, including support for Pilot Tone Detection and SLM

● Crown I-Tech HD Series

○ Updated firmware

▪ Firmware update performance improved

● Crown USBX

○ Updated firmware

▪ Improved stability

▪ Added ability to update amplifier firmware via USBX

▪ NOTE: Amplifier firmware update limited to one device at a time

New in Audio Architect version 1.10.2

● Bug fixed where the application was over-subscribing to Soundweb London devices

● Bug fxed where the application would crash when configuring Windows location to Norway

New in Audio Architect version 1.10.1

● Bug fixed where a file saved in version 1.0 with custom-named Soundweb London processing objects could cause the application to crash when opened and the configuration edited in version 1.1

New in Audio Architect version 1.1

● Main Application

○ Soundweb London Parameter presets and Device Presets are visible in the Venue Explorer and can be dragged directly onto controls in the Custom Panel designer

○ Full Screen Mode

● BSS Audio Soundweb London

○ Support for Audinate Dante-enabled devices Soundweb London BLU-806 and BLU-326

○ Signal naming / following in the Route Audio Mode

○ 96kHz support

○ Integrated Link and Parameter Preset creation for the Matrix Mixer / Router processing objects

○ FIR filter Processing Object

○ Support for the latest revision Soundweb London Analog Output Card

● Crown DriveCore Install Series

○ Support for the DCi 8 600N device

○ New Bump and AutoBump Control Port functionality

● Crown I-Tech 4x3500HD

○ Fixed Advanced Crossover configuration bug

○ Firmware updatesWwe 2k games free download for mobile.

Dbx 4800 Software App

▪ Fixed display watchdog timeout bug

▪ Improved screen load time in Display UI

▪ Removed many confirmation dialogs in Display UI

● Crown CDi, DSi, and XTi / XTi 2.0 Series

Dbx 4800 Software Mac

○ Firmware updates

▪ Modified the fan turn on threshold level for the power supply temperature – the fan may now switch on during idle operation

New in Audio Architect version 1.00.1

● New DriveCore Install Series Network firmware version 1.0.0.4

Dbx 4800 Software Installer

● Issue resolved: if the host computer has an invalid gateway the application would crash

● Issue resolved: online Crown DriveCore Install Series Network amplifiers would not populate in racks correctly

Note: if after installing Audio Architect a strange font appears on some control panels, reboot the computer to resolve. We are looking into this issue and soon hope to have a fix which doesn't require a reboot.