Zoom LiveTrak L-20R Operation Manual
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Zoom LiveTrak L-20R Operation Manual

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Operation Manual
You must read the Usage and Safety Precautions before use.
© 2019 ZOOM CORPORATION
Copying or reprinting this manual in part or in whole without permission is prohibited.
Product names, registered trademarks and company names in this document are the property of their respective companies. All trademarks and regis-
tered trademarks in this document are for identification purposes only and are not intended to infringe on the copyrights of their respective owners.
Proper display is not possible on grayscale devices.

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Summary of Contents for Zoom LiveTrak L-20R

  • Page 1 Operation Manual You must read the Usage and Safety Precautions before use. © 2019 ZOOM CORPORATION Copying or reprinting this manual in part or in whole without permission is prohibited. Product names, registered trademarks and company names in this document are the property of their respective companies. All trademarks and regis- tered trademarks in this document are for identification purposes only and are not intended to infringe on the copyrights of their respective owners.

  • Page 2: Operation Manual Overview

    Bluetooth SIG, Inc. and these marks ® are used under license by Zoom Corporation. Other trademarks and trade names are the property of their respective companies. • Other product names, registered trademarks and company names in this document are the property of their respective companies.

  • Page 3: Introduction

    Introduction Thank you very much for purchasing a ZOOM LiveTrak fuses the features of a digital mixer, a multitrack recorder and a USB audio interface to pro- vide a powerful tool for both live performance and studio production. The smart and compact designed especially to be controlled from an iOS device and a single unit can simultaneously mix, moni- tor and record live performances.

  • Page 4: Table Of Contents

    Contents  Operation Manual overview ������� 1 Pre-recording before recording starts �� 67 Introduction ��������������� 2 Selecting the folder where projects are saved �������������������� 68 Names and functions of parts �������� 5 Selecting projects for playback ������ 69 Front ������������������ 5 Back ������������������...
  • Page 5 Adjusting the display contrast ������ 108 Troubleshooting �������������� 113 Restoring settings to factory defaults ���� 109 Specifications ��������������� 116 Checking the versions ����������� 110 Send effect specifications ��������� 117 Checking the firmware versions � 110 Mixer block diagram ������������ 118 Checking the L-20 Control version ����...

  • Page 6: Names And Functions Of Parts

    Names and functions of parts Front Input channel section Display section Monitoring section Input channel section Hi-Z switch 48V switch/indica- PAD switch SIG indicator GAIN knob COMP knob 1 Hi-Z switch Use to switch the input impedance of MIC/LINE input jack 1 (or 2). 2 48V switch/indicator This turns +48V phantom power on/off.
  • Page 7 Lit red: input signal level is close (−3 dBFS or higher) to the clipping level (0 dBFS) Lit green: input signal level is between −48 and −3 dBFS compared to the clipping level (0 dBFS) 5 GAIN knob Use to adjust the input gain of the mic preamp. The range of adjustment depends on the on/off status of the MIC/LINE input jack switch (Hi-Z on chan- nels 1–2 or PAD on channels 3–16).
  • Page 8 Monitoring section MONITOR OUT knob MONITOR OUT switch PHONES jack VOLUME knob SELECT knob MONITOR OUT PHONES/SPEAKER switch 1 MONITOR OUT knob Use to adjust the volume of the signals output from the MONITOR OUT jacks. 2 MONITOR OUT switch This switches the signal output from the MONITOR OUT jacks.
  • Page 9 CLASS COMPLIANT MODE switch SAMPLE RATE switch 1 REMOTE jack A ZOOM wireless adapter (e.g. BTA-1), can be connected here. 2 POWER switch This turns the unit on and off. Switch to | to turn the power on. Switch to to turn the power off.
  • Page 10 6 REC button/indicator This puts the recorder into standby, and the indicator shows the recording status. Status Explanation Lit red The recorder is recording or in recording standby. Blinking red Recording is paused. 7 STOP button This stops the recorder. 8 SD card slot This slot is for SD cards.

  • Page 11: Back

    DC IN 12V AC adapter connector LINE input jacks (RCA) 1 CONTROL IN connector A footswitch (ZOOM FS01) can be connected here. The footswitch can be assigned to one function: starting/stopping recorder playback, manually punch- ing in/out or muting/unmuting the built-in effect. (→...
  • Page 12 5 MIC/LINE input jacks These input jacks have built-in mic preamps. Connect mics, keyboards and guitars to them. These can be used with both XLR and 1/4-inch (balanced or unbalanced) phone plugs. 6 LINE input jacks (RCA) Use these input jacks to connect line level equipment. For example, connect audio devices.

  • Page 13: Equipment Connection Examples

    Equipment connection examples Live PA system Front ZOOM wireless adapter iPad (e.g. BTA-1) Operator headphones Computer (for recording and playback) Back Powered speakers Electric Drums (main) Bass guitar  Footswitch Keyboard Drum mic Vocal/chorus Electric acoustic Performer guitar headphones/speakers × 6...

  • Page 14: Display Overview

    Display overview Home Screen ⑤ ⑥ ⑦ ⑧ ⑫ ① ② ⑬ ⑭ ③ ④ ⑨ ⑩ ⑪ Item Explanation This shows the project name. 1 Project name "<" appears if there is another project before this one in the folder. ">"...

  • Page 15: Installing L-20 Control

    " on page • A Zoom wireless adapter (e.g. BTA-1) must be installed in the to remotely control it from an iPad. With L-20 Control, transmission up to 10 m is possible when used indoors without obstacles.

  • Page 16: L-20 Control Operation Screen

    L-20 Control operation screen Main sections of screen Toolbar Master section Input channels Meter bridge 1 Input channels This section shows the settings of the input channels and effects. On this screen, the pan, fader and ef- fect parameters for each channel can be adjusted precisely. The REC/PLAY, MUTE and SOLO settings can also be changed.

  • Page 17: Input Channel Section

    Input channel section Effect type Phase indicator name Input signal EQ display Effect parameter 1 EFX 1/2 send faders Effect parameter 2 Pan fader REC/PLAY button MUTE button SOLO button Fader level Channel fader Effect return & fader Level meter "...
  • Page 18 recorded file from the SD card. Status Explanation Lit red Input signals will be recorded to the SD card. An already recorded file will be played back. Playback signals are input Lit green before the equalizer. In this state, only files are played back. Signals from input jacks are disabled.
  • Page 19 This shows the name of the selected effect type. % Effect parameters 1 and 2 Use these to adjust the parameters of the selected effect. "Send effect specifications" on page 117 for the parameters of each effect. & Effect return fader This adjusts the levels of the signals sent from the built-in effect to the master bus in a range from −∞...

  • Page 20: Master Section

    Master section STOP button Project name PLAY button " CHANGE PANEL REC button button Project counter MONITOR OUT knob FADER MODE buttons MASTER REC/PLAY button MUTE button & SCENE ON/OFF button SOLO CLEAR button 1–9 buttons Master fader level SCENE RESET Master fader SCENE SAVE Master level meters...
  • Page 21 If the current mixer settings match the settings of a scene, the corresponding number button will light. This unit can save up to 9 scenes. 7 SCENE RESET Tap this button to reset the current mixer settings to the factory defaults. 8 SCENE SAVE Use this button when saving the current mixer settings to a scene.
  • Page 22 ) Master fader level This adjusts the master fader signal level in a range from −∞ to +10 dB. ~ Master fader This adjusts the signal levels output from the MASTER OUT jacks in a range from −∞ to +10 dB. + Master level meters These show the signal levels output from the MASTER OUT jacks in a range from −48 dB to 0 dB.
  • Page 23 Recorder panel Metronome icon Project protection icon " Project MONITOR PLAY CHANGE PANEL button SD card icon OUT knobs MODE Project folder location Previous/next project buttons Project name Status icon Mark number Counter Longest file time in project Progress bar Remaining Project audio format recordable time...
  • Page 24 8 MONITOR OUT knobs Use to adjust the volumes of the signals output from the MONITOR OUT A–F jacks. 9 Project PLAY MODE This shows the PLAY MODE setting. (→ "Changing the playback mode" on page 100) ! Metronome icon This is shown when the metronome is enabled.
  • Page 25 , Mark number This shows the mark number and the status as follows. : at mark (mark added at counter location) : not at mark (mark not added at counter location) - Longest file time in project This shows the length of the longest file in the project. .

  • Page 26: Toolbar (Access To All Screens)

    Toolbar (access to all screens) Tap a button on the toolbar to open that screen. Settings Screen Recorder panel Effects Channel strip Graphic equalizer (G-EQ) Device list 1 Device list This shows device connection status. 2 Settings Screen This shows the app version and the meter bridge setting. Use the meter bridge setting to set whether the channel level meters on the meter bridge show PRE or POST signals.
  • Page 27 Channel strip PAN knob EQ curve Channel name Channel color SEND EFX knobs USB button Channel reset PHASE button CH EQ OFF EQ knobs 1 Channel name Tap the channel name to change it. 2 Channel color Tap the channel color to change it. 3 USB button This switches the signals input to channels 17/18 (or 19/20).
  • Page 28 LOW knob This adjusts the boost/cut of low-frequency equalization. Type: shelving Gain range: −15 – +15 dB Frequency: 100 Hz MID GAIN knob This adjusts the boost/cut of mid-frequency equalization. Type: peaking Gain range: −15 – +15 dB MID FREQ knob This adjusts the central frequency of the mid frequency equalization.
  • Page 29 Effects Effect name and description Parameter 2 knob Parameter 1 knob 1 Effect name and description This shows the selected effects type and a description. Tap it to change it. 2 Parameter knobs The effect parameters can be adjusted. "Send effect specifications" on page 117 for the parameters of each effect.
  • Page 30 Graphic equalizer (G-EQ) Graphic equalizer fader Gain value Graphic equalizer ON/OFF RESET Frequency label 1 Graphic equalizer ON/OFF This turns the graphic equalizer (G-EQ) on/off. 2 RESET This sets all the graphic equalizer faders to 0 dB. 3 Graphic equalizer fader Use to adjust the gain.

  • Page 31: Turning The Power On And Off

    Turning the power on and off Turning the power on POWER switch GAIN knobs Input and output connectors DC IN 12V AC adapter connector Confirm that the output devices connected to the are turned off. Confirm that is set to OFF .
  • Page 32 Plug the specified adapter (AD-19) into an outlet. Set all to their minimum values. Connect instruments, mics, speakers and other equipment. HINT Equipment connection example (→ "Equipment connection examples" on page to ON. Turn on the output devices connected to the NOTE •...

  • Page 33: Turning The Power Off

    Turning the power off Minimize the volume of output devices connected to the Turn off the power of output devices connected to the to OFF . The following screen appears and the power turns off. NOTE When the power is turned off, the current mixer settings are saved in the project on the SD card. If they cannot be saved to the SD card, they will be saved in the unit.

  • Page 34: Pairing (Connecting) With The

    Install the dedicated L-20 Control app on the iPad before connecting. (→ "Installing L-20 Control" on page REMOTE connector POWER switch Device list While the is off, connect a ZOOM wireless adapter (e.g. BTA-1) to the REMOTE connector. Turn the power on (→ "Turning the power on" on page 30). NOTE Confirm that the output devices connected to the are turned off.
  • Page 35 Tap the L-20 Control app icon on the iPad. This launches L-20 Control. The device list appears the first time it is launched. in the toolbar to open the device list. Tap a device name/ID to connect it. When the app connects to a , the in the toolbar turns blue.

  • Page 36: Using The Menu Screen

    Using the MENU screen Recorder function settings, for example, are made for the using the MENU screen. This is an ex- planation of the basic menu operations.   Open the menu: Tap This opens the MENU screen.   Select menu items and parameters: Turn This moves the cursor.

  • Page 37: Mixer

    Mixer Outputting input sounds from output devices Outputting sound from speakers GAIN knobs MUTE button MUTE buttons Master fader Channel faders to adjust the input signals while inputting sound from instruments and mics. NOTE Set them so that the SIG indicators do not light red. SIG indicator...
  • Page 38 for the MASTER and the channels with sound to be output to turn muting off (unlit). Set the MASTER fader to 0. To adjust the volume of a channel, tap it and use the channel fader. Use the MASTER fader to adjust the overall volume.
  • Page 39 Outputting sound from headphones PHONES jack VOLUME knob SELECT knob Connect headphones to the PHONES jack. Turn to select the bus to be output from the PHONES jack, and tap The options are MASTER, SOLO and MONITOR OUT A–F . Status Explanation MASTER...

  • Page 40: Adjusting The Tone And Panning

    Adjusting the tone and panning Channel strip Channel strip Channel Tap a channel to select it for adjusting tone and panning. in the toolbar to open the channel strip. Use the knobs and buttons in the channel strip section to adjust the tone and panning. To control a , slide it left and right (or up and down) to change its value.
  • Page 41 HINT • Details about each knob and button (→ "Channel strip" on page • Double-tap the following knobs to reset them to their default values. - PAN - LOW - MID GAIN - HIGH...

  • Page 42: Changing Channel Colors

    Changing channel colors Channel strip Channel strip Channel Tap the channel to change to select it. in the toolbar to open the channel strip. and select a color from the pop-up. The channel name label will change to the selected color. COLOR button...

  • Page 43: Changing Channel Names

    Changing channel names Channel name Channel strip Channel strip Channel Tap the channel to change to select it. in the toolbar to open the channel strip. Tap the channel name, and use the on-screen keyboard to edit it. Tap Done to show the edited channel name. NOTE •...

  • Page 44: Resetting Channels

    Resetting channels Channel strip Channel strip Channel Tap the channel to change to select it. in the toolbar to open the channel strip. This opens a confirmation pop-up.

  • Page 45: Using The Built-In Effects

    Using the built-in effects has 20 types of send effects that can be used in 2 effect channels. Using built-in effects Channel strip Effect MUTE button Effect return fader in the toolbar. Tap the current effect name. This opens the effect selection screen. Tap the icon for an effect to select it.
  • Page 46 for EFX 1 RTN or EFX 2 RTN to turn it off. Set the EFX 1 and EFX 2 RTN faders to 0. Tap a channel to use the effect on to select it. in the toolbar. to adjust the amounts of EFX 1 and EFX 2 effects. Use the EFX 1 and EFX 2 faders to adjust the overall effect amounts.

  • Page 47: Using Scene Functions

    Using scene functions The scene function can be used to save up to nine sets of current mixer settings as scenes and to recall these saved settings at any time. Saving scenes SCENE ON/OFF button 1–9 buttons SCENE SAVE to light it. This enables the scene function.
  • Page 48 NOTE • Nine scenes are saved in the unit. • If a button that already has a scene saved is selected, that scene will be overwritten. • The following items are saved with scenes. - Fader positions (each channel, EFX 1/2 RTN and MASTER) - MUTE ON/OFF (each channel, EFX 1/2 RTN and MASTER) - EQ OFF - LOW CUT...
  • Page 49 Tap the button for a scene to recall it The scene for the selected number is recalled. Resetting mixer settings SCENE ON/ OFF button 1–9 buttons SCENE RESET SCENE RECALL so that it lights. This enables the scene function. Buttons –...

  • Page 50: Setting Signals Output From Monitor Out A-F

    Setting signals output from MONITOR OUT A–F The MONITOR OUT A–F jacks can be set to output the same mix as the MASTER OUT or different mixes. Adjusting the MONITOR OUT A–F mixes FADER MODE buttons Channel faders – to select the output to mix. The selected output button lights and operation of all the channel faders is enabled.
  • Page 51 Selecting MONITOR OUT A–F output signals MONITOR OUT switches Use the MONITOR OUT switch for an output to select its output signal. To output a mix set using MONITOR OUT A–F: Set the MONITOR OUT switch to A–F ( To output the same mix as the MASTER: Set the MONITOR OUT switch to MASTER ( Output different mixes for MONITOR OUT A–F Output same mix as MASTER...
  • Page 52 Selecting the equipment types connected to MONITOR OUT A–F MONITOR OUT PHONES/SPEAKER switches Set the MONITOR OUT PHONES/SPEAKER switches for the outputs according to the types of equip- ment connected. To connect headphones to a MONITOR OUT A–F jack: Set the MONITOR OUT PHONES/SPEAKER switch to A stereo signal will be output from the jack.
  • Page 53 Copying a mix FADER MODE buttons While pressing – for the output to copy, tap a blinking copy destination ( – This copies the mix from the source to the destination.

  • Page 54: Graphic Equalizer (G-Eq)

    Graphic equalizer (G-EQ) The graphic equalizer can be used to adjust the MASTER OUT tone. in the toolbar. to light it. This enables the graphic equalizer. Slide the graphic equalizer fader for a frequency band up or down to adjust its gain. HINT •...

  • Page 55: Recording And Playback

    Recording and playback Preparing to record Inserting SD cards POWER switch SD card slot to OFF . Open the SD card slot cover, and insert an SD card all the way into the slot. To remove an SD card, push it further into the slot and then pull it out. NOTE •...
  • Page 56 Creating new projects manages recording and playback data in units called projects. Select MENU > PROJECT > NEW PROJECT. to select YES, and tap NOTE • See "Projects" on page 76 for information about projects. • When a new project is created, it will start with the current mixer settings. HINT When the power is turned on, it will automatically load the last used project.

  • Page 57: Recording/Overdubbing And Playing Recordings

    Recording/overdubbing and playing recordings has recorder functions that enable simultaneous recording of up to 22 tracks and simultane- ous playback of up to 20 tracks. The input signals of every channel and from the master fader output can be recorded. These recordings can also be played back.  ...
  • Page 58 to stop recording. NOTE • Starting and stopping recording and playback can also be done from the unit itself. • The signals recorded on each channel can be set to either before or after the compressor. (→ "Changing the input signal recording source" on page 100) •...
  • Page 59 to stop playback. NOTE • Starting and stopping recording and playback can also be done from the unit itself. • Playback signals are inserted before the equalizer section, so their EQ and panning settings can be ad- justed during playback. (→ "Mixer block diagram"...

  • Page 60: Adding Marks

    Adding marks Adding marks at desired positions with the recorder makes moving to those positions easy. Adding marks during recording and playback Selection encoder Press during recording/playback.   Moving in mark order CHANGE PANEL button REW button FF button to open the recorder panel. Use these buttons to move in mark order.
  • Page 61 Move to previous mark: Tap NOTE Checking and deleting marks in projects (→ "Checking, deleting and moving to marks" on page HINT • A maximum of 99 marks can be added to one project. • A mark can be deleted by pressing when at the mark position.

  • Page 62: Redoing Parts Of Recordings (Punching In/Out)

    "Punching out" is switching track status from record- ing to playback. With the , punching in/out can be conducted using L-20 Control or a ZOOM FS01 footswitch. CHANGE PANEL button STOP button...
  • Page 63 (punch out). NOTE • Punching in/out using a footswitch (ZOOM FS01) (→ "Setting the footswitch" on page 106) • Punching in/out overwrites recordings. • Punching in/out can be done up to 99 times each time playback is started.

  • Page 64: Mixing Down Tracks

    Mixing down tracks A final stereo mix can be recorded to the master track. Signals are sent to the master track after passing through the master fader.   Mixing down to the master track CHANGE PANEL button STOP button PLAY button REC button OVERDUB button MASTER REC/PLAY...
  • Page 65 to start recording. to end mixing down. Playing the master track CHANGE PANEL button PLAY button MASTER REC/PLAY button to open the recorder panel. Tap the MASTER repeatedly until the button lights green. NOTE • Starting and stopping recording and playback can also be done from the unit itself. •...

  • Page 66: Starting Recording Automatically

    Starting recording automatically Recording can be started and stopped automatically in response to the level after passing through the master fader. Selection encoder MENU button REC button/ indicator STOP button REC button Select MENU > REC/PLAY > AUTO REC > ON/OFF . to select ON, and press...
  • Page 67 NOTE Making additional settings for automatic recording (→ "Changing automatic recording settings" on page Press repeatedly to return to the Home Screen. It lights red, showing that recording standby has started. HINT Recording starts automatically when the input exceeds the set level. Recording can be set to stop automatically when the input goes below a set level.

  • Page 68: Pre-Recording Before Recording Starts

    Pre-recording before recording starts The input signal can be captured for up to 2 seconds before recording is started (pre-recording). Setting this in advance can be useful when a performance starts suddenly, for example. Select MENU > REC/PLAY > PRE REC. to select ON, and press NOTE •...

  • Page 69: Selecting The Folder Where Projects Are Saved

    Selecting the folder where projects are saved Choose one of ten folders as the folder where recorded projects will be saved. Select MENU > FOLDER. to select the folder to use for saving recordings, and press NOTE • Up to 1000 projects can be saved in a single folder. •...

  • Page 70: Selecting Projects For Playback

    Selecting projects for playback Projects saved on SD cards can be loaded. Select MENU > PROJECT > SELECT. to select the project to load, and press NOTE • Projects in different folders cannot be selected. To select a project that is saved in a different folder, select that folder first.

  • Page 71: Using The Metronome

    Using the metronome metronome has adjustable volume, a selectable sound, and a precount function. The volume can also be adjusted separately for each output. Metronome settings are saved separately with each proj- ect. Enabling the metronome Select MENU > METRONOME > CLICK. to select when the metronome makes sound, and press Setting Explanation...

  • Page 72: Changing Metronome Settings

    Changing metronome settings Selection encoder TEMPO Changing the metronome tempo The current tempo is shown on the display.
  • Page 73 at the desired tempo to set it. NOTE The tempo will be shown on the hardware while it is being set on the app. At this time, on the hardware can also be turned to change the tempo.
  • Page 74 Setting the precount A metronome count can be sounded before starting recording/playback. Select MENU > METRONOME > PRE COUNT. to select the precount behavior, and press Setting Explanation No precount will sound. Before recording/playback, the precount will sound for the set number of times 1–8 (1–8).
  • Page 75 Changing the metronome sound Select MENU > METRONOME > SOUND. to select the sound, and press HINT The options are BELL, CLICK, STICK, COWBELL and HI-Q. NOTE to play the metronome and check the sound.   Changing the metronome pattern Select MENU >...
  • Page 76 Changing the metronome volume The metronome volume can be adjusted separately for the MASTER OUT and the MONITOR OUT A–F outputs. Select MENU > METRONOME > LEVEL > MASTER or MONITOR OUT A – F . Turn to adjust the volume, and press HINT This can be set from 0 to 100.

  • Page 77: Projects

    Projects manages recording and playback data in units called projects. The following data is saved in projects. • Audio data • Mixer settings • Send return effect settings • Mark information • Metronome settings   Changing project names The name of the currently loaded project can be changed. Selection encoder MENU button...
  • Page 78 NOTE • The default project name is the date and time of creation. For example, if a project was created at 6:48:20 p.m. on Wednesday, March 14, 2019, the project name would be "190314_184820" (YYMMDD_HHMMSS). • Project names have 13 characters. •...

  • Page 79: Deleting Projects

    Deleting projects Projects inside the selected folder can be deleted. Select MENU > PROJECT > DELETE. to select the project to delete, and press to select YES, and press NOTE Projects cannot be deleted if protection is ON.

  • Page 80: Protecting Projects

    Protecting projects The currently loaded project can be write-protected, preventing the project from being saved, deleted or having its content changed. Select MENU > PROJECT > PROJECT PROTECT. to select ON, and press NOTE • Projects cannot be used for recording if protection is ON. Turn protection OFF to record. •...

  • Page 81: Checking Project Information

    Checking project information Various information about the currently loaded project can be viewed. Select MENU > PROJECT. to select INFORMATION, and press Item shown Explanation NAME Project name PATH Location where project saved DATE Project creation date (YYYY/MM/DD HH:MM:SS) FORMAT Recording format SIZE Project size...

  • Page 82: Saving Projects To Usb Flash Drives

    Saving projects to USB flash drives A USB flash drive can be connected directly to the , and the currently loaded project can be saved to it. Selection encoder POWER switch MENU button REC button MODE switch USB HOST port to OFF .
  • Page 83 NOTE • The default project name is the date and time of creation. For example, if a project was created at 6:48:20 p.m. on Wednesday, March 14, 2019, the project name would be "190314_184820" (YYMMDD_HHMMSS). • Project names have 13 characters. •...

  • Page 84: Importing Projects From Usb Flash Drives

    Importing projects from USB flash drives Projects saved on USB flash drives can be copied to SD cards. NOTE Use a computer to create "ZOOM_L-20" and "PROJECT" folders on the USB flash drive in advance (→ "Saving projects to USB flash drives" on page 81).
  • Page 85 NOTE • The default project name is the date and time of creation. For example, if a project was created at 6:48:20 p.m. on Wednesday, March 14, 2019, the project name would be "190314_184820" (YYMMDD_HHMMSS). • Project names have 13 characters. •...

  • Page 86: Checking, Deleting And Moving To Marks

    Checking, deleting and moving to marks A list of marks in the currently loaded project can be opened, allowing them to be checked, moved to and deleted. Selection encoder MENU button REC button Select MENU > PROJECT > MARK LIST. A list of marks appears.

  • Page 87: Audio Files

    Audio files creates the following types of audio files according to the recording channel. • Channels 1–16: mono WAV files • Channels 17/18, 19/20 and MASTER: stereo WAV files The file format depends on the sampling rate (→ "Changing the sampling rate" on page 107) and quanti- zation bit depth (→...
  • Page 88 NOTE Press to select/deselect all files. Press to select YES, and press NOTE Audio files cannot be deleted if protection is ON for their projects.

  • Page 89: Exporting Audio Files To Usb Flash Drives

    Exporting audio files to USB flash drives The desired audio files can be exported from projects to USB flash drives. Exported audio files will be saved on the USB flash drive in the "AUDIO" subfolder of the "ZOOM_L-20" folder. Selection encoder POWER switch MENU button...
  • Page 90 Edit the name. Move cursor or change character: Turn Select character to change/confirm change: Press NOTE • Audio file names have 24 characters. • The following characters can be used in project and file names.     (space) ! # $ % & ' ( ) + , - 0 1 2 3 4 5 6 7 8 9 ; = @    A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ ] ^ _ `    a b c d e f g h i j k l m n o p q r s t u v w x y z { ~ } •...

  • Page 91: Importing Audio Files From Usb Flash Drives

    Importing audio files from USB flash drives The desired audio files can be imported from USB flash drives to existing projects and assigned to chan- nels. NOTE Use a computer to create "ZOOM_L-20" and "AUDIO" folders on the USB flash drive in advance (→ "Sav- ing projects to USB flash drives"...
  • Page 92 to select the channel where the file is to be assigned, and press NOTE • Mono WAV files can be assigned to mono channels and stereo WAV files can be assigned to stereo channels. • Files cannot be imported to channels that already have files assigned to them. •...

  • Page 93: Using Audio Interface Functions

    • The driver is the same as the driver. • The latest "ZOOM L-20 Driver" can be downloaded from the above website. • Download the driver for the operating system that you are using. Launch the installer and install the driver.

  • Page 94: Connecting To A Computer

    Connecting to a computer POWER switch USB DEVICE port MODE switch Use a USB cable to connect the to the computer. to AUDIO INTERFACE. to ON. NOTE • Set to ON when connected to an iOS device. • When connecting to an iOS device, use a Lightning to USB camera adapter (or Lightning to USB 3 cam- era adapter).

  • Page 95: Inputting Return Signals From The Computer To A Stereo Channel

    Inputting return signals from the computer to a stereo channel USB button Channel strip Tap CH17_18 or CH19_20. in the toolbar. for the stereo channel to use for input to turn it on. The signal controlled by the channel is switched to the USB audio channel signal (before EQ).

  • Page 96: Using Card Reader Functions

    Using card reader functions When connected to a computer, data on the SD card can be checked and copied. POWER switch USB DEVICE port MODE switch Use a USB cable to connect the to the computer. to CARD READER. to ON. NOTE When operating as a CARD READER, other functions and buttons cannot be used.

  • Page 97: Recording And Playback Settings

    Recording and playback settings Changing the recording format The recording format can be changed in consideration of audio quality and file size. Select MENU > REC/PLAY > REC FORMAT. to change the format, and press HINT When overwriting a recording, recording will occur at the bit depth of the original file. For example, a file recorded at 16-bit cannot be overwritten with 24-bit recording.

  • Page 98: Changing Automatic Recording Settings

    Changing automatic recording settings The conditions for automatically starting and stopping recording can be set.   Setting the automatic recording start level Select MENU > REC/PLAY > AUTO REC > REC START LEVEL. to change the start level, and press Recording will start automatically when the level of the MASTER fader output signal exceeds the set level.
  • Page 99 Setting automatic stopping Select MENU > REC/PLAY > AUTO REC > AUTO STOP . to select the automatic stop time, and press HINT This can be set to OFF or between 0 and 5 seconds. Select MENU > REC/PLAY > AUTO REC > REC STOP LEVEL. to set the stop level, and press Recording will stop automatically when the level of the MASTER fader output stays below the set level for the amount of time set in step 2.

  • Page 100: Compensating For Latency That Occurs During Input And Output

    Compensating for latency that occurs during input and output can compensate for latency that occurs during input and output if you want to listen to its output signal while overdubbing. Use this menu item to set whether the latency that occurs during input and output is automatically com- pensated for or not when OVERDUB is ON.

  • Page 101: Changing The Playback Mode

    Changing the playback mode Select MENU > REC/PLAY > PLAY MODE. to select the play mode, and press Setting Explanation Only the selected project plays back. Playback continues even when the end of a file is reached. PLAY ONE Only the selected project plays back. Playback stops when the end of a file is (single song playback) reached.

  • Page 102: Sd Card Settings

    SD card settings Checking the open space on SD cards Select MENU > SD CARD > SD CARD REMAIN. This shows the open space on the card. NOTE shows less than the actual open space in order to maintain space to prevent SD card writ- ing performance from degrading.

  • Page 103: Testing Sd Card Performance

    Testing SD card performance SD cards can be tested to confirm whether they can be used with the A basic test can be done quickly, while a full test examines the entire SD card.   Conducting a quick test Select MENU > SD CARD > PERFORMANCE TEST. to select QUICK TEST, and press to select YES, and press The card performance test will start.
  • Page 104 Press to stop the test. NOTE Even if a performance test result is "OK", there is no guarantee that writing errors will not occur. This information is just to provide guidance.   Conducting a full test Select MENU > SD CARD > PERFORMANCE TEST. to select FULL TEST, and press The amount of time required will be shown.
  • Page 105 Press to stop the test. HINT can be pressed to pause or resume a test. NOTE Even if a performance test result is "OK", there is no guarantee that writing errors will not occur. This information is just to provide guidance.

  • Page 106: Making Various Settings

    Making various settings Setting the date and time Display Selection encoder MENU button REC button Select MENU > SYSTEM > DATE/TIME. Setting the date and time Move cursor or change value: Turn Select item/confirm change: Press Press The first time the power is turned on after purchase, the date/time must be set.

  • Page 107: Setting The Footswitch

    Setting the footswitch If a footswitch (ZOOM FS01) is connected to the CONTROL IN jack, it can be used to start/stop recorder playback, punch in/out or mute/unmute the send effect. Select MENU > SYSTEM > CONTROL IN. to select the setting, and press...

  • Page 108: Changing The Sampling Rate

    Changing the sampling rate The file format used when recording to the recorder depends on this setting. Before changing the sampling rate, must be set to OFF . Confirm that is set to OFF . Change the position. HINT This can be set to 44.1 kHz, 48 kHz or 96 kHz. NOTE •...

  • Page 109: Disabling The Automatic Power Saving Function

    Disabling the automatic power saving function The power will automatically turn off if the is unused for 10 hours. To keep the power on at all times, disable the automatic power saving function. While pressing , set to ON. to select OFF , and press NOTE This setting is saved in the unit.

  • Page 110: Restoring Settings To Factory Defaults

    Restoring settings to factory defaults The factory default settings can be restored. Select MENU > SYSTEM > FACTORY RESET. to select YES, and press NOTE This does not reset mixer settings. (→ "Resetting mixer settings" on page  ...

  • Page 111: Checking The Versions

    Checking the versions Checking the firmware versions firmware versions can be viewed. Select MENU > SYSTEM > FIRMWARE VERSION. This shows the firmware versions.

  • Page 112: Checking The L-20 Control Version

    Checking the L-20 Control version The application version can be shown. This shows the application version.

  • Page 113: Updating The Firmware

    Copy the firmware update file to the root directory on an SD card. NOTE Files for the latest firmware updates can be downloaded from the ZOOM website (www.zoom.co.jp). Insert the SD card into the While pressing , set to ON.

  • Page 114: Troubleshooting

    General The unit and L-20 Control are not connecting • Confirm that a ZOOM wireless adapter (e.g. BTA-1) has been installed in the unit. • Confirm that the ZOOM wireless adapter (e.g. BTA-1) has not become disconnected. • Confirm that the iPad Bluetooth setting is on.
  • Page 115 "Formatting SD cards" on page 101) • If formatting an SD card does not improve this, we recommend replacing the card. See the ZOOM web- site (www.zoom.co.jp) for information about cards that have been confirmed to work with this unit.
  • Page 116 • Confirm that the Sound setting of the computer being used is set to "ZOOM L-20". • Confirm that a "ZOOM L-20" is selected for input and output in the software being used. • Confirm that...

  • Page 117: Specifications

    Specifications Number of in- Inputs Mono (MIC/LINE) put and output Stereo (LINE) channels Outputs MASTER OUT MONITOR OUT PHONES Inputs Mono Type XLR/TRS combo jacks (XLR: 2 HOT, TRS: TIP HOT) (MIC/LINE) Input gain PAD OFF: +16 – +60 dB PAD ON: −10 – +34 dB Hi-Z ON: +6 –...

  • Page 118: Send Effect Specifications

    Send effect specifications EFX 1 Tempo Parameter Parameter Type Explanation synchro- knob 1 knob 2 nization Hall 1 Hall reverb with a bright tone TONE DECAY Hall 2 Hall reverb with a long time for early reflections TONE DECAY Room 1 Dense room reverb TONE DECAY...

  • Page 119: Mixer Block Diagram

    Mixer block diagram...
  • Page 120 ZOOM CORPORATION 4-4-3 Kanda-surugadai, Chiyoda-ku, Tokyo 101-0062 Japan www.zoom.co.jp Z2I-3688-01...

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