L-Acoustics P1 User Manual
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L-Acoustics P1 User Manual

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  • Page 1 user manual (EN)
  • Page 2 Document reference: P1 user manual (EN) version 2.1 Distribution date: October 19, 2018 © 2018 L-Acoustics. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means without the express written consent of the publisher.

  • Page 3: Table Of Contents

    Contents Safety................................6 Important safety instructions........................6 Symbols..............................7 System components.............................9 Technical description............................10 Main features............................10 Internal components........................10 Front and rear panels........................10 Signal processing............................11 Signal inputs..........................11 Measurement and tuning....................... 11 DSP architecture..........................12 Signal outputs..........................13 Power supply............................13 Monitoring and control..........................13 User interface..........................
  • Page 4 Using the interface..........................22 Unlocking the display..........................22 Using the main screen..........................23 Conguration information.......................23 DSP indicators..........................23 IP address............................ 24 Level meters and mute........................25 Time-alignment..........................26 Automatic input fallback........................ 27 Using the input/output pages........................30 Stacked views..........................32 Mute............................32 Gain............................33 Polarity............................34 Signal status (AES and AVB)......................
  • Page 5 Specications..............................71 General..............................71 Interface and connectors..........................71 Inputs and outputs...........................72 Signal processing............................75 P1 Sensor.............................. 75 Remote control............................75 Physical data............................76 Appendix................................. 77 Glossary..............................77 List of AVB reservation errors........................77 Licenses and copyrights........................... 79 Approvals...............................80...

  • Page 6: Safety

    To reduce the risk of re or electric shock, this apparatus should not be exposed to rain or moisture and objects lled with liquids, such as vases, should not be placed on this apparatus. Never incorporate equipment or accessories not approved by L-Acoustics. Read all the related PRODUCT INFORMATION documents shipped with the products before exploiting the system.

  • Page 7: Symbols

    This symbol noties the user about complementary information or optional instructions. Do not open unless authorized. This symbol indicates the presence of electrical shock hazards. It also indicates that no maintenance performed by the end user requires access to internal components. P1 user manual (EN) version 2.1...
  • Page 8 P1 AVB processor and measurement platform L-Acoustics P1 is an AVB processor and measurement platform. Remote controlled from LA Network Manager 2.6 Windows/macOS software together with L-Acoustics amplied controllers, its 20 inputs / 18 outputs dual core DSP platform provides a comprehensive solution for mixing desk selection, signal processing and distribution over AVB networks, AES/EBU or analog lines.

  • Page 9: System Components

    3D acoustical and mechanical modeling software LA Network Manager Software for remote control and monitoring of amplied controllers Refer to the Soundvision help. Refer to the LA Network Manager help. Illustrations LA Network Manager LA-RAK II P1 user manual (EN) version 2.1...

  • Page 10: Technical Description

    GPI and two GPO, allows for control of precongured status or operations. Two USB 2.0 host connectors allow the connection of the P1 Sensor for temperature and humidity measurement or a USB storage device (max. 500 mA / 5 V).

  • Page 11: Signal Processing

    +22 dBu. Each connector is an ESD protected female XLR3. To be processed by the DSP, the analog signal is converted into a digital signal. For this purpose, P1 is tted with an A/D converter operating at 32-bit/96 kHz.

  • Page 12: Dsp Architecture

    DSP architecture The DSP engine is a 32-bit oating point DSP at 96 kHz sampling rate. It provides an enhanced dynamic range as it does not produce internal signal clipping like a xed point DSP. P1 user manual (EN) version 2.1...

  • Page 13: Signal Outputs

    Other outputs P1 features a 1/4 inch stereo headphone jack. Power supply P1 relies on a universal Switched Mode Power Supply (SMPS) suitable for mains from 100 V to 240 V ( ±10%), 50-60 Monitoring and control User interface The front panel is tted with a 320 × 120 px TFT color touchscreen display and an encoding wheel with push button.

  • Page 14: Preventive Maintenance

    Refer to the LA Network Manager Help. 4. Check that all L-Acoustics processors in the system run the same version of the rmware. The version of the rmware should match with the version of LA Network Manager in use. Refer to the LA NWM and rmware compatibility issues technical bulletin.

  • Page 15: Installation

    Mounting P1 is one rack unit high (1U) and can be mounted in an EIA-standard 19'' rack using the four points on the front panel. Use the xing material provided by the rack manufacturer to mount the processor to the rack front rails.

  • Page 16: Connecting To Ac Mains

    — Connect the power cord female IEC C13 connector to the processor male IEC C14 socket. Check that the cable is properly locked. — Connect the power cord country-specic plug to the mains socket. Power consumption P1 power requirement is 27 W. P1 user manual (EN) version 2.1...

  • Page 17: Audio And Network Cabling

    Audio and network cabling Connection panels P1 features input, ouput and L-NET/AVB connectors on its front and rear panels for audio and network connection. Do not connect the P1 outputs to its own inputs. Risk of damage to the product and the system.
  • Page 18 SRC to 96 kHz. P1 has been tested with up to 200 m / 656 ft of OT234H AES/EBU rated cables from KLOTZ communications GmbH (single cuts, digital source signal running at Fs = 96 kHz, tested for input and output).

  • Page 19: Cabling Example

    • AVB to AES/EBU or analog bridge (for non-AVB amplied controllers like LA8). • Integration of other platforms (like the self-powered P series). • Audio playback (with a USB drive and the P1 Media Player). • System measurement and tuning: multi-microphone measurement with temperature and humidity acquisition (with LA Network Manager 3.0 and the P1 Sensor).

  • Page 20: General Purpose I/O (Gpio)

    Installation General Purpose I/O (GPIO) P1 features a female DB9 connector on the rear panel. OUT1+ fully isolated output, relay contact OUT1- fully isolated output, relay contact OUT2+ fully isolated output, relay contact OUT2- fully isolated output, relay contact IN1+...

  • Page 21: Operation

    If the product is exposed to condensation, power on, then wait 30 minutes before use. Parameters accessible only from LA Network Manager Most parameters are accessible both from the P1 front panel and from LA Network Manager. The following can only be performed from LA Network Manager: •...

  • Page 22: Using The Interface

    Operation Using the interface P1 is equipped with an encoding wheel with push button and a color touchscreen display. Navigating between pages: Changing selection or setting: Validating selections: Returning to the previous screen: Unlocking the display The interface can be locked and unlocked in LA Network Manager to prevent unintentional operations.

  • Page 23: Using The Main Screen

    • Q is the CUE BUS indicator. Bus is routed to at least one output. Peak sample limiter is active (refer to Level meters and mute (p.25)). Bus is not routed to any output. P1 user manual (EN) version 2.1...

  • Page 24: Ip Address

    Processor is not connected to LA Network Manager, or to any L-COM based remote controller. Processor is connected to an L-COM based remote controller, but not to LA Network Manager. Processor is connected to LA Network Manager, and may be also connected to another L-COM based remote controller. P1 user manual (EN) version 2.1...

  • Page 25: Level Meters And Mute

    On muted inputs, pre-mute levels are displayed above the red bottom indicator. Orange mute buttons represent a mixed status across a single input/output type. For individual signal mute, refer to Mute (p.32). For conrmations before applying the main screen mute/unmute, refer to Selecting preferences (p.61). P1 user manual (EN) version 2.1...

  • Page 26: Time-Alignment

    The AES/EBU and analog outputs of P1 are always time-aligned. When a P1 unit is used as a front-end processor to feed LA12X, compatible LA4X, or other P1 units using AVB for the main distribution and AES/EBU or analog for the redundant distribution, it is recommended to enable Time-alignment for this P1 unit in LA Network Manager.

  • Page 27: Automatic Input Fallback

    LA Network Manager on Units that did not switch over in order to re-align the system until the initial cause of the problem is found and resolved. If the connected signal source comes from another P1, enable the time-alignment option in LA Network Manager to solve the issue.
  • Page 28 For example, it is not possible for MIC 3-4 to be the fallback of AES 1-2. Inputs designated as fallback are reserved for this usage, and therefore can no longer be selected as sources in the router. P1 user manual (EN) version 2.1...
  • Page 29 Fallback input: Type label and levels of activated channels are blue. INPUTS Main input: Type label and levels of recovered channels are orange. Total recovery Fallback input: Type label and levels of activated channels are blue. P1 user manual (EN) version 2.1...

  • Page 30: Using The Input/Output Pages

    Operation Using the input/output pages Access to the input/output pages through their types or level meters. Inputs For the Media Player, refer to Turning on the Media Player (p.61). P1 user manual (EN) version 2.1...
  • Page 31 Operation DSP BUS Outputs P1 user manual (EN) version 2.1...

  • Page 32: Stacked Views

    When muted, the bottom indicators of the level meters are red. Example with muted ANA 2 and ANA 4 outputs. On the main screen, an orange mute represents a mixed status across a single input/output type. P1 user manual (EN) version 2.1...

  • Page 33: Gain

    G (dB) Edit gain for a specic signal. +/- 0.1 dB +/- 1.0 dB To select whether selections are additive (multiple selections) or exclusive (one item at a time), refer to Selecting preferences (p.61). P1 user manual (EN) version 2.1...

  • Page 34: Polarity

    Indicates the incoming digital signals are faulty and leads to loss of audio. The LOCKED status is re-acquired after at least 500 ms of stability. INVALID Indicates non-audio data in the payload or errors in the AES/EBU transmission. P1 user manual (EN) version 2.1...
  • Page 35 LA Network Manager. WAITING The AVB Listener of P1 has been told by an AVB Controller to connect to an AVB Talker and it is RESERVATION / now waiting for the conclusion of the bandwidth reservation from the AVB Talker.
  • Page 36 30 seconds to ensure that the previous stream reservations are released in the network. WAITING The AVB Talker of P1 is waiting for the conclusion of the bandwidth reservation from an AVB RESERVATION Listener. If displayed for more than a few seconds: •...

  • Page 37: Mapping (Avb)

    P1 AVB outputs are directly mapped to the AVB output stream. Using mapping, it is possible to patch any channel from the input stream to any P1 AVB input, and any P1 AVB output to any channel in the output stream.

  • Page 38: Mic/Line Settings

    Operation Each AVB input can receive one of the eight channels of an input stream. Each channel of the output stream can be fed from any P1 AVB output. input mapping output mapping AVB 1 AVB 1 AVB 2 AVB 2...

  • Page 39: Media Player (Mpl)

    Turning on the Media Player disables AVB inputs 7 and 8. Use the Media Player to read audio les from a USB drive connected to one of the USB ports. P1 supports USB drives using the FAT 16 or FAT 32 le system. file information...
  • Page 40 Open the Media Player options. track_1.wav /Volume A/ my_music 4:54 Playback Mode le play a single le folder play all les in the folder Repeat Turn off/on the repeat option (le or folder played once or on loop). P1 user manual (EN) version 2.1...

  • Page 41: Generator

    Congure the signal generator in the Generator page. Signal types: sine wave, sine bursts, 20 Hz-20 kHz sweep, white noise, and pink noise. It is possible to modify the frequency of sine wave when the signal is on. P1 user manual (EN) version 2.1...

  • Page 42: Dsp (Bus And Cue)

    When two P1 processors are congured to create an 8x8 matrix, it is recommended to enable the 8x8 matrix option for these P1 units in LA Network Manager. In an 8x8 matrix, AVB 5-8 is used to cross patch physical inputs between the two P1 processors, and AVB 1-4 is used to send the DSP busses to amplied controllers.
  • Page 43 Tap and hold to open the numeric keypad. Maximum delay for the CUE BUS is 2000 ms. Maximum delay for each DSP BUS is 2000 ms, in addition to group delay. Refer to Group Parameters (DSP BUS) (p.44). P1 user manual (EN) version 2.1...
  • Page 44 • The EQ status is on if at least one of the contributing groups has active EQ. Maximum group delay is 2000 ms, in addition to individual DSP BUS delays. Refer to Delay (p.43). P1 user manual (EN) version 2.1...
  • Page 45 All selected signals are summed. Input or DSP BUS gain is not applied. AFL (After-Fader Listening) Select the DSP BUS input(s) to send to the CUE BUS. All selected signals are summed. Input and DSP BUS gain are applied. P1 user manual (EN) version 2.1...

  • Page 46: Source Selection

    (p.39). AES, ANA and MIC are crossed out when designated as fallback. Refer to Automatic input fallback (p.27). For a read-only recap of the source selection, refer to Matrix mixer view (DSP BUS) (p.42). P1 user manual (EN) version 2.1...

  • Page 47: Using The Menu

    Open the menu (or push the encoding wheel from the main screen). MENU CONFIGURATIONS MEDIA CLOCK MENU CONFIGURATIONS MEDIA CLOCK MONITORING & INFO MENU MEDIA CLOCK MONITORING & INFO OPTIONS MENU MONITORING & INFO OPTIONS P1 user manual (EN) version 2.1...

  • Page 48: ConGurations

    DELETE LOAD DEFAULT EXPORT (USB) MENU > CONFIGURATIONS LOAD DEFAULT EXPORT (USB) IMPORT (USB) MENU > CONFIGURATIONS EXPORT (USB) IMPORT (USB) Access to the Congurations menu is disabled when LA Network Manager is connected. P1 user manual (EN) version 2.1...
  • Page 49 Storing a conguration Select CONFIGURATIONS > STORE. There are 30 memory spaces. Choose a name (16 characters maximum) for the conguration. Deleting a conguration Select CONFIGURATIONS > DELETE to delete a previously stored conguration. P1 user manual (EN) version 2.1...
  • Page 50 • Delay: all at 0 ms, time-alignment off, 8x8 matrix delay off. • Mic/Line settings: phantom power and HPF off, and analog preamp gain at 0 dB. • Group parameters: cleared. • Matrix mixer: P1 user manual (EN) version 2.1...
  • Page 51 BACKUP ALL CFG DIR: /Volume A/ Default le name is ALLCFG-P1- followed with the processor IP. Use FILE to modify the name. Use DIR to select an existing folder or create a new one. Backup les are saved as *.lbak.
  • Page 52 Import congurations from a USB drive connected to one of the USB ports. P1 supports USB drives using the FAT 16 or FAT 32 le system. • Select CONFIGURATIONS > IMPORT (USB) > IMPORT SINGLE CFG to import a single conguration.
  • Page 53 Select a folder and a *.lbak le from the USB drive. MENU > CONFIGURATIONS > IMPORT (USB) DIR/ Volume A IMPORT SINGLE CFG [my_folder_1] RESTORE ALL CFG [my_folder_2] DIR/ Volume A/ my_folder_1 [...] ALLCFG-P1-100 Importing an all-congurations le overwrites the 30 memory spaces. P1 user manual (EN) version 2.1...

  • Page 54: Media Clock

    To ensure two P1 processors use the same media clock, either: • Select an identical CRF stream for both P1 processors, or • Set the media clock source of one P1 to Internal, and the media clock source of the other P1 to AVB Input Stream.

  • Page 55: Monitoring & Info

    MENU > MONITORING & INFO MENU MEDIA CLOCK GENERAL MONITORING & INFO ETHERNET LINKS OPTIONS MENU > MONITORING & INFO GENERAL ETHERNET LINKS TEMPERATURE & HUMIDITY MENU > MONITORING & INFO ETHERNET LINKS TEMPERATURE & HUMIDITY P1 user manual (EN) version 2.1...
  • Page 56 MENU > MONITORING & INFO 2.9.1.0 GENERAL 20180409 ETHERNET LINKS 1.0.0.14 1.0.0.41 1.0.0.3 For troubleshooting purposes, it can be useful to communicate this data to your L-Acoustics representative. Item Format Comment Firmware Package 4 digits separated by periods example: 2.9.1.0 Firmware Date...
  • Page 57 Internal Temperature and humidity measured from inside the P1 Unit. A percentage on a color-coded background indicates if P1 is at risk of overheating: green (up to 70%), orange (between 70% and 75%), or red (75% and more). USB Sensor Temperature and humidity measured from a connected P1 Sensor.

  • Page 58: Options

    NETWORK SWITCH DISPLAY MENU > OPTIONS NETWORK SWITCH DISPLAY MEDIA PLAYER MENU > OPTIONS DISPLAY MEDIA PLAYER PREFERENCES MENU > OPTIONS MEDIA PLAYER PREFERENCES RESET TO FACTORY MENU > OPTIONS PREFERENCES RESET TO FACTORY P1 user manual (EN) version 2.1...
  • Page 59 Use only Subnet prexes corresponding to private local area networks according to RFC1918 for LA Network Manager to be able to connect to the amplied controllers. Subnet mask is automatically dened in rmware according to the network class induced by the Subnet prex (class A, class B, class C). P1 user manual (EN) version 2.1...
  • Page 60 NETWORK SWITCH DISPLAY MEDIA PLAYER The levels of brightness are: High, Normal, Medium, Low and Off. Turning off the display is applied after a conrmation. To turn on the display again, use LA Network Manager. P1 user manual (EN) version 2.1...
  • Page 61 Select Options > PREFERENCES. MENU > OPTIONS MEDIA PLAYER PREFERENCES RESET TO FACTORY Gain Selection Select whether selections are additive (multiple selections) or exclusive (one item at a time). Additive Exclusive Example with additive selections: P1 user manual (EN) version 2.1...
  • Page 62 Select whether a conrmation is required before applying the main screen mute. Un-mute All Conrmation Select whether a conrmation is required before applying the main screen unmute. Resetting P1 to factory default Select OPTIONS > RESET TO FACTORY. The processor retains its network address. P1 user manual (EN) version 2.1...

  • Page 63: Identifying The Processor

    • On the identied processor, the screen displays IDENTIFICATION and the complete IP address on a blinking red background. To identify a processor on the Workspace of LA Network Manager, press and hold the encoding wheel. To identify a processor in the physical setup, refer to the LA Network Manager help. P1 user manual (EN) version 2.1...

  • Page 64: Maintenance

    Equipment and tools Equipment Before performing preventive maintenance on this product, make sure all the equipments listed are available. • dry cloth • computer with LA Network Manager (version 2.6 minimum) and CAT5e U/FTP cable P1 user manual (EN) version 2.1...

  • Page 65: Troubleshooting And Diagnosis

    • Unplug the network cables and power cycle the unit. If the issue does not persist, then there is at least one loop in the Ethernet network: nd the loop(s), and remove the cable(s) that create the loop(s), or enable RSTP. • If the issue persists, contact L-Acoustics. Both USB ports stopped working (display screen is working) •...

  • Page 66: Network Issues

    GPIO does not work • Check that the connected device produces enough power (5 V / 50 mA). • Check that the connected device does not produce more than 5 V / 50 mA power. If so, contact L-Acoustics. • Contact L-Acoustics.

  • Page 67: Sound Issues

    (validity bit), CRC error, bipolar encoding error, data slip. An AVB audio source can meet the following failures: switch/talker failure, cable failure, disconnection or "stop streaming" requested by AVB Controller, non-Avnu certied device in network other causes contact L-Acoustics P1 user manual (EN) version 2.1...
  • Page 68 (refer to the third-party documentation) audio source failure inspect the audio source for failure other causes contact L-Acoustics P1 user manual (EN) version 2.1...

  • Page 69: Exploded View

    Maintenance Exploded view In the exploded view, each assembly corresponds to a D/R procedure and the necessary repair kit(s). External modules encoder wheel knob KR LA4XBOUT P1 user manual (EN) version 2.1...

  • Page 70: Disassembly And Reassembly Procedures

    D/R - Encoder wheel knob Repair kits KR LA4XBOUT KR encoding wheel button LA4X/LA12X/P1 ×1 1348 LA4X and LA12X encoder wheel knob Kit contains additional components that are not required for this procedure. Exploded view P1 user manual (EN) version 2.1...

  • Page 71: SpeciCations

    Digital output 2 male XLR3, balanced stereo, ESD protected Network 2 × 1 Gb/s Ethernet etherCON I/O Mains input 1 IEC C13 V-Lock compatible with on/off switch General Purpose I/O (GPIO) 1 female DB9 connector P1 user manual (EN) version 2.1...

  • Page 72: Inputs And Outputs

    AVB input stream (upsampling at 96 kHz in case of stream at 48 kHz) synchronized on clock of the connected CRF stream internal Streams forwarded by AVB Bridge up to 32 P1 user manual (EN) version 2.1...
  • Page 73 AES/EBU (AES3) or electrical S/PDIF (IEC 60958 Type II) Sampling frequency (Fs) 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz or 192 kHz Word length 16 bits, 18 bits, 20 bits or 24 bits P1 user manual (EN) version 2.1...
  • Page 74 110 mW left + 110 mW right at 32 Ω to 600 Ω load Signal generator Signal types sine wave, sine bursts, 20 Hz-20 kHz sweep, white noise, pink noise Peak level from -75 dBFS to 0 dBFS by steps of 0.1 dB P1 user manual (EN) version 2.1...

  • Page 75: Signal Processing

    -10 °C / 14 °F to +85 °C / 185 °F Sensor humidity range 0% to 80% RH (non-condensing) male USB-A Remote control Network connection dual-port Ethernet Gigabit interface L-Acoustics remote control software LA Network Manager 2.6 P1 user manual (EN) version 2.1...

  • Page 76: Physical Data

    465 mm / 18.3 in 483 mm / 19 in 275 mm / 10.83 in 445 mm / 17.52 in 93 mm / 3.66 in 19 mm / 0.75 in 10 mm / 0.39 in P1 user manual (EN) version 2.1...

  • Page 77: Appendix

    An emergency stream has been connected and reclaimed the bandwidth that rank was used by the Unit stream. • Wait until the emergency stream is disconnected (bandwidth is automatically reallocated). • Try the resolutions of error 1. P1 user manual (EN) version 2.1...
  • Page 78 Changed rst value for reg. A device on the network is behaving incorrectly. stream ID • Disconnect and reconnect the stream. • Reboot the talker. • Reboot the bridges on the path from the talker to the listener. P1 user manual (EN) version 2.1...

  • Page 79: Licenses And Copyrights

    The processor rmware includes software packages released under open source licenses. To access the list of the packages and their licenses, open a web browser and type the full IP address of a connected processor in the address bar. P1 user manual (EN) version 2.1...

  • Page 80: Approvals

    Appendix Approvals P1 user manual (EN) version 2.1...
  • Page 81 Appendix P1 is certied with the following: P1 user manual (EN) version 2.1...
  • Page 82 L-Acoustics, an L-Group Company 13 rue Levacher Cintrat - 91460 Marcoussis - France +33 1 69 63 69 63 - info@l-acoustics.com www.l-acoustics.com L-Acoustics GmbH L-Acoustics Ltd. L-Acoustics Inc. Steiermärker Str. 3-5 PO. Box Adler Shine - Aston House 2645 Townsgate Road, Suite 600...

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