®
JM4 Looper
Advanced Guide
An in-depth guide to the features and functionality of the JM4 Looper.
Electrophonic Limited Edition
Please Note:
Line 6, JM4 and Spider Jam are trademarks of Line 6, Inc. All other product names, trademarks and artists’ names are the property of their respective owners, which are in no way associated or affiliated with Line 6. Product names, images, and artists’ names are used solely to identify the products whose tones and sounds were studied during Line 6’s sound model development for this product.The use of these products,trademarks,images,and artists’ names does not imply any cooperation or endorsement.
JM4 Advanced Guide © 2008 Line 6, Inc.
Table of Contents
Updated Features................................................................... |
1•1 |
SD Browser..................................................................................................... |
1•1 |
Playback Levels, Input Levels......................................................................... |
1•2 |
Menu Items..................................................................................................... |
1•3 |
SD Card Details...................................................................... |
2•1 |
Format Card.................................................................................................... |
2•1 |
Transfer Recording To Card, Transfer Recording From Card........................ |
2•2 |
Save Rec Mix As WAV To Card.................................................................... |
2•3 |
Import WAV File From Card.......................................................................... |
2•3 |
Transfer All To Card, Transfer All From Card............................................... |
2•4 |
Firmware Version, Firmware Upgrade............................................................ |
2•5 |
Time Stretch &Varispeed..................................................... |
3•1 |
Time Stretch/Pitch Shift ............................................................................... |
3•1 |
Pitch/Tempo Preview, Varispeed.................................................................... |
3•2 |
Recording Restrictions................................................................................... |
3•3 |
Footswitch Modes................................................................... |
4•1 |
Jam Control Mode.......................................................................................... |
4•1 |
Loop FX Mode, Record Select Mode............................................................. |
4•2 |
Guitar Preset Mode, Amp Model / FX Mode................................................. |
4•3 |
Workflow................................................................................. |
5•1 |
Recording, Saving........................................................................................... |
5•1 |
Jam Files, WAV Files....................................................................................... |
5•2 |
Loops............................................................................................................... |
5•3 |
Appendix : FAQ...................................................................... |
A•1 |
Questions & Answers.................................................................................... |
A•1 |
Updated Features
Updated Features
Welcome to the JM4 Looper Advanced Guide. This guide contains in-depth details of your JM4’s features and functionality which were not covered in the JM4 Pilot’s Handbook.
With the release of v2.07 firmware, working with the JM4 just got a whole lot easier. In addition to a few new menu items and UI tweaks, we’ve expanded SD card functionality. You can now preview and work with recordings directly off of your SD card. With a turn of the wheel and one click on the Right Arrow button, you can directly load any JAM or WAV file stored on your SD card, then overdub, save changes and perform mixdowns.
|
|
|
|
|
SD |
1•1 |
SONGS |
|
DRUMS |
|
RECORDINGS |
|
Turn Wheel To
Browse SD
SD Browser
•When an SD card is inserted in the JM4’s SD card slot, press the SONG button and you’ll see 4 main tabs in the LCD. In addition to the Songs, Drums and Recordings tabs, we’ve added an SD tab, which gives you access to the SD Browser.To browse the files you have saved on your SD card, select SD and turn the wheel.
HARMGTRS
DRUMMIX1
REC#3NEW
GTRLOOP2
BASSFIG1
•You’ll see a list of all your SD card’s recordings and WAV files. To load any file into the JM4’s playback buffer, select it by turning the wheel and pressing the R Arrow.
SONGS DRUMS 
RECORDINGS
SD
REC#3NEW
LOOP: 00:11:23 |
FREE: 32:15:44 |
•Once you start using an SD card, we recommend you always save to SD card instead of internal memory. If you have previously saved recordings in internal memory, we recommend you transfer them to SD card also, then delete them from internal memory. This keeps internal memory free for maximum recording time, and makes it easy to back up all your files: pop the SD card into your PC and make copies there.
Updated Features
Playback Levels
Press the LEVEL button to access Playback Levels. On this screen you have independent level control of the Song/Drums track, the Guitar track and the Mic/Aux/Wav track.
These are also the controls you’ll use for Mixdowns (see page 2•3 for Mixdown info).
|
|
|
|
|
|
|
|
|
|
|
|
|
PLAYBACK LEVELS |
|
|
|
|
||||||
|
|
|
|
100% |
|
|
|
|
|
||
|
100% |
|
100% |
|
|
||||||
|
|
|
|
|
|
GUITAR |
|
|
|
|
|
|
|
SONG/DRUMS |
MIC/AUX/WAV |
||||||||
1•2 |
• Navigate to any of the three Playback Levels knobs by pressing either the R Arrow |
||||||||||
or L Arrow buttons. |
|
|
|
|
|
|
|||||
•Once you select the playback track you want to adjust, turn the wheel to set the playback level of that track, from 0 (off) to 100%.
This makes it easy to balance the 3 tracks of your currently loaded recording, and also provides a way to mute the individual tracks if desired.
Input Levels
With a 2nd press of the LEVEL button you can access the Mic/Aux/CD Input Levels screen. This is where you adjust your input levels for the Mic input, Aux input and CD input, displayed as a dynamic bar. Navigate from tab to tab by pressing the L and R Arrow buttons. Set Input levels by turning the wheel as you monitor each respective Input.
|
|
AUX |
|
|
|
|
|
|
|
|
|||
MIC |
|
|
|
CD |
|||||||||
|
|
|
|
|
|
-40 |
-20 |
|
|
|
|
|
|
-80 |
-60 |
|
|
-0 |
|
|
|||||||
+0 dB
•When setting levels for the Mic, Aux or CD inputs, make sure you first press the RECORD SELECT button and toggle it to Mic/Aux.
•The dB display on the lower left of the LCD indicates your input level trim setting. You can set it anywhere from -60dB to +12dB, or set it to Off.
When you plan on recording from one of the Mic, Aux or CD inputs, make sure you first press and hold the RECORD SELECT button to select the desired Input Routing. You can choose between mixing your input with the Microphone or Guitar track.
Updated Features
Menu Items
Here are some new menu items that have been added since the initial JM4 release:
Save Recording To SD Card – this command enables you to save the currently loaded recording to your SD card. Press the SAVE button to access it in the menu list.
Save RecordingTo Internal – this command enables you to save the currently loaded recording to internal memory. Press the SAVE button and turn the wheel to access it.
Erase All Internal Recordings – when you have all your recordings backed up to an SD card, you can clear the JM4’s internal memory by invoking this command.
Output Routing – press the SETTINGS button 3 times then turn the wheel to 1•3 navigate to this menu item. Normal mode is the default. When you select Performance
Mode, your guitar will play only thru the Amp Out.
OUTPUT ROUTING
NORMAL
ALL AUDIO TO LINE + PHONES
It’s important to note that if you plug in your headphones, the JM4 reverts to Normal routing, and your guitar goes to all outputs. You can manually change the routing back to Performance Mode, but it’s unlikely you’ll want to do so while wearing headphones.
Also keep in mind that Master Volume controls the level of all outputs, including headphones. The exception is when Output Routing is set to Performance Mode, in which case the Line Outs are unaffected by Master Volume, putting out 100% level.
Tempo/Pitch Modes – press the SONG button twice to access Tempo/Pitch Modes.
Asdescribedonpage3•1,thisiswhereyoucanselectTime Stretching And Pitch Shifting or Varispeed. Press the R Arrow, then turn the wheel to select the mode you want.
TEMPO/PITCH MODES
|
|
|
|
|
LOOPING |
|
[ON] |
[ON] |
|
|
ENDLESS |
PLAY |
[ON] |
[ON] |
Looping – Looping for ‘one shot’ Guitar & Mic/Aux tracks can now be set to On or Off for playback and recording. Press SONG button twice to access the Looping menu item.
SD Card Details
SD Card Details
In this chapter we’ll focus on the SD card. With an SD card inserted into your JM4’s SD card slot, you can save and load your original recordings, perform mixdowns in WAV file format, import WAV files from your computer, and upgrade your JM4 firmware.
All the SD card-specific menu items described in this chapter are accessed by pressing the |
2•1 |
SAVE button. The first thing you’ll want to do is format your SD card. |
|
Format Card
It’s best to start out with a new 1 GB or 2 GB SD card. If you have an existing card, that’ll work also, but make sure you’ve backed up all the data on the card first, because once you do a format, your card will be completely erased. The main reason to format your SD card is to ensure your card is set up with the JM4 filing system. It’s also a good way to get a fresh start in organizing your sessions. To format your SD card, follow these steps:
•Insert an SD card (up to 2 GB) into the SD card slot on the JM4 rear panel.
•Press the SAVE button; you’ll see a list of menu items in the LCD.
•Turn the wheel and navigate to Format Card, then press the R Arrow to format.
IMPORT WAV FILE FROM CARD
FORMAT CARD
FIRMWARE VERSION
•Press the Up Arrow to confirm “Yes”. The format process will take a few seconds.
•When the format process is complete, press any button to begin a new session.
As you begin recording with your JM4, before you know it you’ll find you’ve accumulated quite a few recordings. Since internal memory is limited, you’ll want to develop a good system for backing them up, for beginning new sessions with a clean slate, and for importing WAV files from your computer. With that in mind, here are 3 good rules to go by:
•Use an SD card as your primary memory bank to keep internal memory freed up.
•Back up every session of internal memory recordings to SD card.
•For maximum recording time, begin every new session with JM4 memory cleared.
SD Card Details
Transfer RecordingTo Card
If you’ve checked out the JM4 Pilot’s Handbook, you already know how to record a guitar track and save that recording to your JM4’s internal memory. If you want to keep your recording, your next step will be to back it up to SD card. The easy way to do this is with a Transfer command. To Transfer your current recording to SD card, follow these steps:
2•2 |
• Press the SAVE button to display the menu items in the LCD. |
|||||||
• Navigate to Transfer Recording To Card and press the R Arrow. |
||||||||
|
||||||||
|
|
|
|
|
|
|
||
|
|
ERASE DEMO |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
TRANSFER RECORDING TO CARD |
|
|||||
|
|
|
|
|
|
|||
|
|
TRANSFER RECORDING FROM CARD |
|
|||||
|
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
•You’ll see a list of your recordings, the ones you’ve saved to internal memory.
•Turn the wheel to select the recording you want to transfer.
•Press the R Arrow to complete the transfer. Repeat to transfer more recordings. Your recording is now backed up on the SD card, along with any others you’ve saved.
Transfer Recording From Card
Once you have recordings saved on SD card, you can easily Transfer any one of them into your JM4’s internal memory for playback or overdubbing. To do so, follow these steps:
•Press the SAVE button to display the menu items in the LCD.
•Navigate to Transfer Recording From Card and press the R Arrow.
TRANSFER RECORDING TO CARD
TRANSFER RECORDING FROM CARD 
TRANSFER ALL TO CARD
•You’ll see a list of the recordings you have saved on the SD card.
•Turn the wheel to select the recording file you want to transfer.
•Press the R Arrow to complete the transfer.
Your file will now appear in the list of recordings available from the JM4 Recordings tab.
Loading...