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ASTRO AM-3825 Instruction Manual

12g-sdi audio monitor / loudness audio monitor
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12G-SDI Audio Monitor / Loudness Audio Monitor
AM-3825/AM-3826
Instruction manual
Ver. 4.10
ASTRODESIGN, Inc.
社

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  • Page 1 12G-SDI Audio Monitor / Loudness Audio Monitor AM-3825/AM-3826 Instruction manual Ver. 4.10 ASTRODESIGN, Inc. 社...

  • Page 2: Safety Precautions (Always Observe)

    Safety Precautions (Always Observe) Safety Precautions (Always Observe) Always observe the following precautions. Failure to do so can result in fires, electric shock, serious injury or death, and damage to property. Warning Indications and Their Meanings This manual uses the following warning indications and symbols. Before reading this manual, make sure that you understand the meaning of these indications.
  • Page 3 Safety Precautions (Always Observe) About Handling the Unit Do not install in a wobbly or unstable location. The unit may fall off, leading to injury or damage to the unit. Do not put anything on this Unit. This may cause the unit to malfunction. Do not place objects around this unit.
  • Page 4 Safety Precautions (Always Observe) About Handling the Power Cord Be sure to connect to an outlet with a protective ground terminal. If the installation process is not performed, it may cause electric shock or malfunction. If an outlet with a protective ground terminal cannot be used, be sure to use the FG terminal for grounding.

  • Page 5: Fcc Sheet

    Supplier's Declaration of Conformity Astrodesign Optical Transmission Device, AM-3825/AM-3826 This device complies with Part 15 of the FCC Rules. Operation is subject to the following conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

  • Page 6: Before Operation

    Introduction Thank you for purchasing the audio monitor AM-3825/AM-3826. This instruction manual (hereinafter referred to as this manual) describes how to use the audio monitor AM-3825/AM-3826 and precautions for use. Be sure to read this manual to ensure proper use.

  • Page 7: Trademarks And Registered Trademarks

    Before operation Trademarks and registered trademarks Dante and Dante Controller are registered trademarks of Audinate.

  • Page 8: Table Of Contents

    Chapter4 Check the input signal ......65 About bundled items ..........6 4.1 How to switch the display ....... 65 About difference function between AM-3825 and 4.2 Confirmation of input video ......66 AM-3826 ..............6 4.3 Checking the audio level bar ......67 About bright spots and dark spots ......
  • Page 9 8.9 Block Diagram ..........91 8.9.1 MONITOR BLOCK ......91 8.9.2 OUTPUT BLOCK ........92 8.10 Dimensions ........... 93 8.10.1 AM-3825 Dimensions ......93 8.10.2 AM-3826 Dimensions ......94 8.10.3 Cooling fan intake/exhaust port .... 95 Chapter9 Revision history........96...

  • Page 10: Chapter1 About This Unit

    ●Equipped with audio sampling rate button) and press the button to execute the function. converter (SRC) Even if you connect audio that operates at a different clock to the input signal, the audio can be output without noise or interruption. (AM-3825 only supported)
  • Page 11 ・ Spectrum analyzer operations on your computer. (Using SP-3825 main unit ・ History display controller software) (AM-3825 only supported) ・ Lissajous waveform ・ You can enter the timecode using the TC 1/2 (analog ・ Picture display timecode) connector.

  • Page 12: Names And Functions Of Each Part

    Chapter1 About this unit 1.2 Names and functions of each part The names and functional outlines of each part of this device are as follows. Common to AM-3825/AM-3826. 1.2.1 Front of this unit ① ② ③ ④ ⑤ ⑧ ⑨...

  • Page 13: Rear Of This Unit

    ⑪ Lights green during signal input. (LED indicator is displayed next to the input terminal) Dante Dante audio input / output terminal (AM-3825 only supported) ⑫ PRIMARY/SECONDARY 64ch IN / 64ch OUT (48 kHz) 24bit PCM. RJ-45 connector LAN connector For Dante audio channel routing, use Audinate's Dante Controller software.

  • Page 14: Chapter2 Preparation And Basic Operation Of This Unit

    Chapter2 Preparation and basic operation of this unit Chapter2 Preparation and basic operation of this unit This chapter describes the connection, start / end, and basic operation methods of this unit. 2.1 Preparation of this unit Make sure the power switch is on (LED is green). The connection and start / end methods of this unit are as follows.

  • Page 15: Basic Operation Of This Unit

    Chapter2 Preparation and basic operation of this unit 2.2 Basic operation of this unit The basic operation of this unit is as follows. 2.2.1 How to switch the display of the LCD panel ● About LCD panel The LCD panel displays a home screen that displays the functions assigned to the user buttons, operations, and speaker output channels, and a menu screen that sets the functions of this unit.

  • Page 16: Home Screen Overview And Operation Method

    Chapter2 Preparation and basic operation of this unit 2.2.2 Home screen overview and operation method The home screen displays and operates the functions assigned to the user buttons and confirms the status of the input signal. ● User button display The following functions are assigned to the user buttons ([U1] to [U8] buttons) at the time of shipment.

  • Page 17: How To Adjust The Speaker Channel

    Chapter2 Preparation and basic operation of this unit 2.2.4 How to adjust the speaker channel You can select the left channel with the [CH-L] (encoder) dial and the right channel with the [CH-R] (encoder) dial. Press the [CH-L] (encoder) dial to increment the channel pair. Press the [CH-R] (encoder) dial to decrement the channel pair.

  • Page 18: Chapter3 Set Up This Unit

    Chapter3 Set up this unit Chapter3 Set up this unit This chapter describes the settings of this unit that can be performed on the menu screen. Basic operation of settings 3.1.1 How to move the menu 3.1.2 How to set the function To move the menu, follow the steps below.

  • Page 19: List Of Setting Items

    When SDI DUAL is selected, audio can be input up to 16 channels for each of MADI Ch1-32 the SDI-A / SDI-B inputs, for a total of 32 channels. MADI Ch33-64 When AES or Analog is selected, audio can be input up to 8ch. Dante Ch1-32 ※ Dante Ch33-64 ※ ※ AM-3825 only supported...
  • Page 20 B39: Uses the station time of the inter-station control signal multiplexed with the SDI signal. When SDI DUAL is selected, B39 on the SDI A side is used. ※ AM-3825 only supported. SDI Audio Grp per Sub image Sets the audio group configuration used by SDI.
  • Page 21 Chapter3 Set up this unit Subimage1 Subimage2 Set value (3G-SDI LV-B (3G-SDI LV-B LinkB) LinkA) 8groups ○32ch 12G-SDI 4groups ○16ch ○16ch 2groups ○8ch ○8ch 4groups ○16ch ○16ch 6G-SDI 2groups ○8ch ○8ch 8groups ○32ch 3G-SDI 4groups ○16ch LV-A 2groups ○8ch 3G-SDI 4groups ○16ch ○16ch...
  • Page 22 Chapter3 Set up this unit Analog Settings Set the analog audio input. The setting items are as follows. Setting Setting items Set value (initial setting: Function items 1 underlined) 600ohm Disable, Enable Set the termination of each analog audio input channel. Terminal Disable: No 600Ω...

  • Page 23: Output Menu

    AES, MADI, Analog, Dante, Downmix, none) to the AES Ch1～8 ※1 DVI1 to DVI8 output channels. ※2 Analog Ch1～8 ※1 MADI Ch1～64 ※1 Dante Ch1～64 ※1 Downmix 5.1-L Downmix 5.1-R Downmix 5.1-C Downmix 5.1-LFE Downmix 5.1-Ls Downmix 5.1-Rs Downmix ST-L Downmix ST-R none ※1 AM-3825 only supported.
  • Page 24 Chapter3 Set up this unit ※2 Monitor assigns the signal selected in the INPUT menu> Input Select. (Channels 1 to 32 channels that have no input signal are silently output) Monitor Downmix assigns monitor-specific downmixed audio. Front L / Front R assigns the signal selected with the CH-L and CH-R dials on the front. Downmix assigns output-only downmixed audio.

  • Page 25: Loudness Menu

    Chapter3 Set up this unit 3.2.3 Loudness menu In the Loudness menu, you can control loudness measurement and set measurement channel mapping. ・ The menu contents may differ depending on the software version. Operation Set the operation for loudness measurement. The setting items are as follows.
  • Page 26 Chapter3 Set up this unit Settings Make various settings for the loudness meter. The setting items are as follows. setting setting items setting Set value (initial setting: Function items 1 items 3 underlined) General Measuring ― Sample Order, TC Chase Sample Order: Measures in the order in which the Settings method...
  • Page 27 Chapter3 Set up this unit setting setting setting setting Set value (initial Function item 1 item 2 item 3 item 4 setting: underlined) Trigger Trigger ― ― STD, Master Select the main type of trigger for loudness Settings Mode measurement. Select STD: Select a trigger that uses timecode, audio ON/ OFF, and color bar detection.
  • Page 28 Chapter3 Set up this unit setting setting setting setting Set value (initial Function item 1 item 2 item 3 item 4 setting: underlined) Trigger Timecode Start Specify the 8-digit start time code. ①②：③④：⑤⑥：⑦⑧ Settings Trigger ※３ Timecode If you select *, the digit will not be monitored. Stop Specify the 8-digit stop time code.
  • Page 29 Chapter3 Set up this unit setting item setting item setting setting Set value (initial setting: Function item 3 item 4 underlined) Trigger TC Count Start -2.0 ～ 0.1 ～ 2.0 sec, Detects timecode count-up and adjusts Settings Trigger Timing 0.1step timing to start※１...
  • Page 30 Chapter3 Set up this unit setting item setting item setting setting Set value (initial setting: Function item 3 item 4 underlined) Trigger 1kHz Start -2.0 ～ 0.1 ～ 2.0 sec, Detects the end of 1kHz audio and Settings Trigger Timing 0.1step adjusts the timing until it starts.
  • Page 31 Chapter3 Set up this unit setting item setting item setting setting Set value (initial setting: Function item 3 item 4 underlined) Trigger Level Start -2.0 ～ -0.3 ～ 2.0 sec, Detects a sound level above the set Settings Trigger Timing 0.1step threshold and adjusts the timing until it ※３...
  • Page 32 Chapter3 Set up this unit setting item setting item setting setting Set value (initial setting: Function item 3 item 4 underlined) Trigger Color bar Start -2.0 ～ 0.1 ～ 2.0 sec, Detects the end of the color bar and Settings Trigger Timing 0.1step...
  • Page 33 Chapter3 Set up this unit Set value (initial setting item setting item setting item setting setting: Function item 4 underlined) Trigger Master Operation ― Manual, Auto Enables or disables the master trigger. Settings Trigger Mode Manual: Master trigger is disabled. (Manual trigger operation can be performed.) Auto: Master trigger is enabled.
  • Page 34 Chapter3 Set up this unit Import the character string for the Length word from the above Offset position as a CM code. (Settings related to the 100ms raw data storage function of SP-3825) ・ It is recommended to use Start Timing / Stop Timing with the initial values. Due to the timing adjustment, if the measurement start position and the measurement end position are close to each other, the loudness measurement may not start or end correctly.
  • Page 35 Chapter3 Set up this unit ＜Trigger: Measure loudness with CM code & MUTE＞ The loudness is measured by setting the IN point and OUT point of each CM and program with the CM code & MUTE as a trigger. This trigger monitors the mute period of 0.5Sec at the beginning of the CM or the beginning of the program and triggers it. CM or The program is judged by the presence or absence of the CM code after mute.
  • Page 36 Chapter3 Set up this unit Set value (initial setting item setting item setting setting setting: Function item 3 item 4 underlined) Trigger Roll ― ― OFF, ON Turns the roll function ON / OFF. This function Settings Support adds outputs loudness measurement results for the set number of times from the start of measurement.
  • Page 37 Chapter3 Set up this unit 前 Set value (initial setting: setting item 1 setting item 2 setting item 3 Function underlined) ― OFF, ON Monitors the audio mode code of ARIB STD- B39 Audio Auto M'ment B39 and automatically switches the audio Mode Mode mode...
  • Page 38 Chapter3 Set up this unit Set value (initial setting: setting item 1 setting item 2 setting item 3 Function underlined) Preset Map 0x01 Preset 1～ Set the preset number for each audio mode B39 Audio 0x02 Preset 12、 code of ARIB STD-B39. Mode By turning on Auto Preset Load, you can 0x03...
  • Page 39 Chapter3 Set up this unit Set value (initial setting: setting item 1 setting item 2 setting item 3 Function underlined) Audio Out 0x01 Preset 1～ Set the audio output remap preset number B39 Audio Remap Map 0x02 Preset 12、 for each audio mode code of ARIB STD-B39. Mode 0x1F + 0x ** sets the preset number for each 0x03...
  • Page 40 Chapter3 Set up this unit Set value (initial setting: setting item 1 setting item 2 setting item 3 Function underlined) Standard ITU-R ― Selecting each standard, switches the Level Settings Preset Load BS.1770 loudness measurement unit, target level, ARIB TR-B32 and threshold.
  • Page 41 Chapter3 Set up this unit M’ment Mode Set the number of ESs for loudness measurement (the number of audio programs to be measured), the audio mode for each ES, and the channel mapping for each ES. The settings are saved in a preset and recalled. setting item setting item Set value (initial setting:...
  • Page 42 Chapter3 Set up this unit setting item Set value (initial setting: setting item 1 Function underlined) ES Program ― 1, 2, 3, 4 Set the number of audio ES (Elementary Stream) programs Number used for loudness measurement. (Example: Set 2 for 2 stereos. Set 3 for 22.2 + 5.1 + ST) ES1 Audio Mode ―...

  • Page 43: Settings Menu

    Chapter3 Set up this unit 3.2.4 Settings menu In the Settings menu, set the functions displayed on the LCD panel and the hardware settings of this unit. ・ The menu contents may differ depending on the software version. Level Meter Set the level meter display.
  • Page 44 Chapter3 Set up this unit setting Set value (initial setting: setting items 1 setting items 2 Function items 3 underlined) Audio Settings Peak Value Display ON, OFF Set whether to display the current dBTP peak value ON: Display OFF: Hide Select Peak, MAX dBTP Sets the display content of the peak...
  • Page 45 Chapter3 Set up this unit setting Set value (initial setting: setting items 1 setting items 2 Function items 3 underlined) Loudness Peak Hold ― OFF、ON Set whether to display the peak hold of the Settings Display loudness level bar. OFF: Not displayed. ON: Displayed.
  • Page 46 Chapter3 Set up this unit Lissajous Make various settings for Lissajous. The setting items are as follows. setting items setting Set value (initial setting: Function items 2 underlined) ― LR, 8ch, 16ch, 32ch Set the number of channels for Lissajous display. Ch Display LR: Displays 2ch of front LR.
  • Page 47 Chapter3 Set up this unit Set value (initial setting: setting items 1 setting items 2 Function underlined) Lissajous Ch Map Lissajous1-1 Ch1, 2, 3, 4, 5, 6, 7, 8, 9, Set 1 channel of Lissajous 1. Lissajous1-2 10, 11, 12, 13, 14, 15, 16, Set 2 channels of Lissajous 1.
  • Page 48 Chapter3 Set up this unit Needle Meter Set the needle meter. The setting items are as follows. setting items setting setting Set value (initial setting: Function items 2 items 3 underlined) Display ― ― VU, LU VU: Displays the VU meter. Select LU: Displays the LU meter.VU VU Settings...
  • Page 49 Chapter3 Set up this unit Spectrum Analyzer Set the spectrum analyzer display. The setting items are as follows. setting items setting Set value (initial Function items 2 setting: underlined) Display ― L/R Single, Set the windows to be displayed by total / channel. L/R Dual, If you set by channel, you can select the channel by pressing the 1ES Single,...
  • Page 50 Chapter3 Set up this unit Numerical Table Set the numerical display. The setting items are as follows. Set value (initial setting: setting items 1 Function underlined) LKFS, LUFS, LU Sets the unit of loudness numerical (Integrated, Momentary, Loudness Scale Short-term) display. OFF, ON Set ON / OFF Integrated numerical display during the Display - Integrated...
  • Page 51 Chapter3 Set up this unit History Set the history display. The setting items are as follows. setting items Set value (initial setting: Function underlined) Min-Max Momentary, Short-term, Set whether to display the maximum / minimum value of momentary or short Loud.
  • Page 52 Chapter3 Set up this unit Layout Set the layout. The setting items are as follows. setting items Set value (initial setting items 1 setting items 2 Function setting: underlined) Skip Layouｔ Level Meter ― OFF, ON Set ON / OFF the level bar display. select Lissajous ―...
  • Page 53 Chapter3 Set up this unit Downmix Make various downmix settings. The setting items are as follows. Set value setting setting setting setting items (initial Function items 1 items 2 items 3 setting: underlined) Speaker ― ― OFF, ON 5.1 Set whether to output the downmix to the speaker. Monitoring Monitoring OFF: No output...
  • Page 54 Chapter3 Set up this unit setting setting setting items setting items Set value (initial setting: Function items 1 items 2 underlined) Downmix Sets the downmix factor g1. ※2 0～-4.5～-9dB, Monitoring Downmix Method Refer to the calculation formula Infi.dB Settings ※１ Sets the downmix factor g2.
  • Page 55 Chapter3 Set up this unit Set value (initial setting setting setting setting setting: Function items 1 items 2 items 3 items 4 underlined) Stereo Channel 5.1ch L 1, 2, 3, 4, 5, 6, 7, 8, Sets the L channel for stereo downmix. Monitoring Settings 5.1ch R...
  • Page 56 Set the BtFC channel for 5.1ch downmix.5.1ch 22.2ch BtFL Set the FL channel for 5.1ch downmix. 22.2ch BtFR Set the BtFR channel for 5.1ch downmix.5.1ch ※１ This is an output-only downmix. It does not affect the downmix dedicated to monitoring. ※2 AM-3825 only supported.
  • Page 57 Chapter3 Set up this unit setting setting Set value (initial setting: setting items setting items Function items 1 items 2 underlined) for Output Downmix Sets the downmix factor g1. 0～-4.5～-9dB, Downmix Method ※2 Refer to the calculation ※１ Infi.dB Settings formula.
  • Page 58 Sets the downmix factor a. 0～-9dB, Infi.dB Sets the downmix factor k. 0～-3～-9dB, Infi.dB Sets the downmix factor m. 0～-40dB, Infi.dB ※１ This is an output-only downmix. It does not affect the downmix dedicated to monitoring. ※2 AM-3825 only supported.
  • Page 59 Chapter3 Set up this unit Hardware Make various settings related to the hardware of this unit. The setting items are as follows. setting setting Set value (initial setting: Function items 1 items 2 underlined) ― 1, 2, 3, 4, 5, 6, 7, 8, 9, Adjusts the brightness of the LCD panel backlight.
  • Page 60 255.255.255.255 Gateway Change the unit ID name displayed on SP-3825. Unit ID Press to edit. Name System For system management of this unit. ― ― Information System For system management of this unit. ― ― Maintenance ※ AM-3825 only supported.

  • Page 61: Memory Menu

    Chapter3 Set up this unit 3.2.5 Memory menu In the Memory menu, the settings are registered, recalled, and deleted as presets. ・ The menu contents may differ depending on the software version. Preset Memory Settings Operate and set preset data. The operation / setting items are as follows.
  • Page 62 Chapter3 Set up this unit External Memory The preset data of this device is saved in the USB memory, and the data saved in the USB memory is recalled to this device. Also, save the log data to a USB memory as CSV. The operation items are as follows.

  • Page 63: Gpi List Of Assigned Functions

    Loudness measurement is paused during Make. Reset Stops loudness measurement and resets the value. OTHER GPI Enable (Level) Enable GPI only at the time of Make. GPI is enabled whenever all GPIs do not select GPI Enable (Level). AM-3825 only supported. ※...

  • Page 64: Gpo List Of Assigned Functions

    Chapter3 Set up this unit 3.4 GPO List of assigned functions The following is a list of operations assigned to pins GPO1-1 to GPO2-6 of the GPO connector. Setting function name Function content None Select if you do not want to assign a function. Operation Start Outputs the start signal for loudness measurement.

  • Page 65: Chapter4 Check The Input Signal

    Chapter4 Check the input signal Chapter4 Check the input signal This chapter describes the meters and pictures displayed on the LCD. 4.1 How to switch the display The method for switching the meter and picture displayed on the LCD panel is as follows. ●...

  • Page 66: Confirmation Of Input Video

    Chapter4 Check the input signal 4.2 Confirmation of input video 【Picture】 Input video 【Function】 ・ You can turn on / off the input video display from the Settings menu> Layout> Picture Display. ・ The above ON / OFF settings can also be turned ON / OFF the input video display by pressing the [ADJ] button and pressing the Picture Display with the [U8] button during each layout display.

  • Page 67: Checking The Audio Level Bar

    Chapter4 Check the input signal 4.3 Checking the audio level bar 【L/R Level Meter】 L/R Audio level bar 【8ch Level Meter】 1～8ch Audio level bar 【16ch Level Meter】 1～16ch Audio level bar 【32ch Level Meter】 1～32ch Audio level bar ※Numerical display does not display after the decimal point. 【Function】...

  • Page 68: Checking The Loudness Level Bar

    Chapter4 Check the input signal 4.4 Checking the loudness level bar 【Loudness Level Meter】 Loudness level bar display 【Loudness Level Meter】 Loudness level bar display 【Function】 ・ When Loudness is set in Settings menu> Level Meter> Display Select, the loudness level bar and numerical values are displayed. ・...

  • Page 69: Confirmation Of Lissajous Waveform

    Chapter4 Check the input signal 4.5 Confirmation of Lissajous waveform 【L/R Lissajous】 L/R Lissajous waveform 【8ch Lissajous】 8ch Lissajous waveform 【16ch Lissajous】 16ch Lissajous waveform 【32ch Lissajous】 32ch Lissajous waveform 【Function】 If you set LR ,, 8ch, 16ch, 32ch in Settings menu> Lissajous> Ch Display, the number of Lissajous waveforms and correlation ・...

  • Page 70: Checking The Needle Meter

    Chapter4 Check the input signal 4.6 Checking the needle meter 【VU Meter】 VU meter 【Function】 Select VU from Settings menu> Needle Meter> Display Select to display the L / R VU meter. ・ The selected L and R VU meters are displayed with the CH-L and CH-R dials on the front. ・...

  • Page 71: Checking The Spectrum Analyzer

    Chapter4 Check the input signal 4.7 Checking the spectrum analyzer 【L/R Single Spectrum Analyzer】 L/R Single spectrum analyzer 【L/R Dual Spectrum Analyzer】 L/R Dual spectrum analyzer 【1ES Single Spectrum Analyzer】 1ES Single spectrum analyzer 【1ES Dual Spectrum Analyzer】 1ES Dual spectrum analyze...
  • Page 72 Chapter4 Check the input signal 【ES ALL Spectrum Analyzer】 ES All spectrum analyzer 【Function】 ・ L / R Single, L / R Dual, 1ES Single, 1ES Dual, ES ALL can be displayed by selecting Settings menu> Spectrum analyzer> Display. L / R Single display (Display the total of selected L and R with the CH-L and CH-R dials on the front) ・...

  • Page 73: Confirmation Of Loudness Measurement

    Chapter4 Check the input signal 4.8 Confirmation of loudness measurement 【1ES（ST） Loudness measurement】 Display all loudness measurements (Integrated / True Peak / Max True Peak / Momentary / Max Momentary / Short-term / Max Short-term / Loudness Range) 【4ES（ST） Loudness measurement】 Display loudness measurements (Integrated / Max True Peak) 【Ｆｕｎｃｔｉｏｎ】...

  • Page 74: Check History

    Chapter4 Check the input signal 4.9 Check history 【History】 Loudness measurement history 【Function】 ・ The history of the loudness measurement period can be displayed. The display contents can be changed by turning ON / OFF Settings> History> Display-***. Integrated- (Integrated loudness) The transition is displayed with a yellow line. MinMax- (Momentary, short-term maximum / minimum value) If it is higher than the target level, it is displayed in red.

  • Page 75: Check Status

    Chapter4 Check the input signal 4.10 Check status 【Audio Error】 Audio packet error display 【Channel status】 Channel status display 【Loudness Log】 Loudness event log display 【Alarm Log】 Alarm event log display...
  • Page 76 Chapter4 Check the input signal 【Function】 On the status screen, you can check the audio error and audio channel status (SDI, AES, MADI digital audio only), loudness event ・ log and alarm event log. 【Audio Error】 Press the [ADJ] button and switch to Audio Error (audio packet error display) with the [U1] button. ・...

  • Page 77: Confirmation With 2-Screen Multi-Display

    Chapter4 Check the input signal 4.11 Confirmation with 2-screen multi-display 【Multi 1～4】 Display two types of information on a screen divided into two 【Function】 You can set the left and right combinations of Multi 1 to 4 by selecting from the following in Settings menu> Layout> Multi Layout ・...

  • Page 78: Chapter5 Useful Function

    Chapter5 Useful function Chapter5 Useful function This chapter describes features such as user buttons and preset values to help you work efficiently. 5.1 Assign functions to user buttons The function assignments to the user buttons ([U1] to [U8]) can be changed as desired. This section describes how to change it by taking the method of assigning the Input Select SDI A function of INPUT to the [U4] button as an example.

  • Page 79: Chapter6 Operation Image Example

    Chapter6 Operation image example Chapter6 Operation image example In this chapter, the operation flow, precautions, settings, etc. are explained using a typical pattern for loudness measurement as an example. Perform loudness measurements ・ I want to measure and confirm the loudness of the entire program under the following conditions. Sound is used as a trigger to start measurement, and silence is used as a trigger to stop measurement.
  • Page 80 Chapter6 Operation image example Measure using the overwrite function（TC Chase） As a result of measuring the loudness of the entire program, the loudness was higher than the target value. When I checked ・ the details on the history display, the volume was extremely loud only in a part, so I adjusted the playback level of that part on the output side.
  • Page 81 Chapter6 Operation image example Measure without using the overwrite function（Sample Order） ・ A request to prevent the part with the same time code from being overwritten Since multiple programs with the same time code are measured together, Request to record measurement data in the order of measurement without being affected by time code ・...

  • Page 82: Chapter7 When In Trouble

    Chapter7 When in trouble Chapter7 When in trouble This chapter describes what to do if the unit does not operate normally. 7.1 When it does not work properly 7.2 If the Unit Malfunctions or Trouble Occurs If the unit does not operate normally, refer to the following table and take appropriate action.

  • Page 83: Chapter8 Specifications Of This Unit

    Chapter8 Specifications of this unit Chapter8 Specifications of this unit This chapter describes the specifications of this device. 8.1 Main unit rear connector 8.1.1 GPIO1/GPIO2 connector The pin arrangement of GPIO1 and GPIO2 is common. Functions can be assigned to GPIO1 and GPIO2 respectively. Function number GPI1：User selection...
  • Page 84 Chapter8 Specifications of this unit ● GPO internal block Inside the device Control IC External device GPI connector transmitter ● + 12V output unit internal block Inside the device Control IC Connector transmitter ※The maximum output is + 12V / 450mA. Use pin 1 of the GPIO connector for GND. It can be used for low power LED lighting, etc.
  • Page 85 Chapter8 Specifications of this unit ● About GPI connector operation There are two types of GPI connector control methods: edge operation and level operation. An example of each operation is shown below. For any operation, input a signal with a LOW width of 50 msec or more. ●Edge movement In the edge operation, the instruction is executed when it is confirmed that the control signal has changed from open (HIGH) to LOW.

  • Page 86: Analog In/Out Connector

    Chapter8 Specifications of this unit 8.1.2 ANALOG IN/OUT Connector Function number 8ch HOT 7ch COLD 6ch HOT 5ch COLD 4ch HOT 3ch COLD 2ch HOT 1ch COLD N.C. 8ch COLD 7ch HOT 6ch COLD 5ch HOT 4ch COLD 3ch HOT 2ch COLD 1ch HOT ※Pin assignments are compatible with TASCAM and YAMAHA.

  • Page 87: Dvi Out Connector

    Chapter8 Specifications of this unit 8.1.3 DVI OUT connector The DVI OUT connector only supports digital signal output. The output video is fixed at 1080 / 60P, and the loudness measurement value is displayed. The content of the numerical display of the loudness measurement value is linked to the setting of each numerical display ON / OFF of the Numerical Table of Settings in the menu.

  • Page 88: Input Signal Method

    Number of channels: 64ch Redundant connection using Primary / Secondary port or multiple connection by daisy chain is possible ※ AM-3825 only supported. ・ When playing audio with DOWNMIX or mixed channels, input signals with synchronized sampling to each input channel.

  • Page 89: Other Signals

    Number of channels: 64ch Redundant connection using Primary / Secondary port or multiple connection by daisy chain is possible DVI Output Sampling frequency: 48kHz Bit length: 24bit PCM Number of channels: 8ch Headphone Output Maximum output: 20mW (16Ω) ※ AM-3825 only supported.

  • Page 90: External Control

    Screen size 6.6 inch Resolution 1440(H)×240(V) Pixels Pixel pitch 0.114 (H)×0.114 (V) mm 8.7 Accessories Accessories Quantity AM-3825/AM-3826 Instruction Manual SP-3825（This device control application） (AM-3825 only supported.) SP-3825 Instruction Manual (AM-3825 only supported.) AC cable Rack mount bracket 8.8 Options Options Remote control BOX ※Please contact us for details.

  • Page 91: Block Diagram

    Chapter8 Specifications of this unit 8.9 Block Diagram Since the audio processing of the input signal differs between the monitor (measurement and speaker output) and the signal output (AES, analog, MADI, Dante, DVI), this product is described in two blocks. 8.9.1 MONITOR BLOCK The monitor block is a block that performs loudness measurement, dBTP oversampling processing, resage, spectrum analyzer, and speaker (headphone) output processing of the input signal.

  • Page 92: Output Block

    Chapter8 Specifications of this unit 8.9.2 OUTPUT BLOCK The signal output block describes how to process and output the input signal. All input signals can be freely mapped and output. Output signals other than Dante are output based on the reference clock of INPUT >...

  • Page 93: Dimensions

    Chapter8 Specifications of this unit 8.10 Dimensions 8.10.1 AM-3825 Dimensions...

  • Page 94: Am-3826 Dimensions

    Chapter8 Specifications of this unit 8.10.2 AM-3826 Dimensions...

  • Page 95: Cooling Fan Intake/Exhaust Port

    Chapter8 Specifications of this unit 8.10.3 Cooling fan intake/exhaust port AM-3825/3826 has intake and exhaust ports on each side (openings at 120mm to 170mm from the front). When rack mounting the unit, be sure not to block them. Intake Exhaust...

  • Page 96: Chapter9 Revision History

    Added Rename function to M'ment Mode> M'ment Mode Preset 〃 3.2.5 Added Rename function to Preset Memory in Memory menu 71～73 Chapter 6 AM-3825 Added operational image 8.1.3 Added DVI OUT connector description 3.00 2021/08/20 3.2.3 Added CM Code Capt. Offset and CM Code Capt. Length functions (Loudness menu>...
  • Page 97 AM-3825/AM-3826 Instruction Manual Ver. 4.10 Any incorrectly collated manuals or manuals with missing pages will be replaced. ● ● All copyrights pertaining to this product are the property of ASTRODESIGN, Inc. ● This manual may not be copied in whole or in part without written permission.

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