LoopMangler - Manual
 
 

 

LoopMangler Manual


(click to enlarge)

Content:

1. General

1.1 Overview & Features
1.2 Limitiations & Specifications
1.3 Installation
1.4 Legal Stuff

2. Audio Path Section

2.1 Sample Insert Slots & external Input
2.2 Key Settings

2.3 Bit Chop & Distortion/Exciter Stage
2.4 Mono/Stereo Inserts
2.5 Mixer

3. Gate Sequenzer Section

3.1 Slices and Switches
3.2 Sync to BPM
3.3 Timing Settings
3.4 Envelope Settings
3.4 Preset List

4. Filter Section

4.1 Filters
4.2 Modulation
4.3 Unload DSP
4.4 Preset List

5. Modulation Section

5.1. LFOs
5.2 Destinations
5.3 Preset List

6. Preset Lists in general

7. Tips

 

1. General

1.1 Overview and Features

LoopMangler gives you extensive control over four mono sample loops (or ext. input) at your fingertips.
Due to a streamlined interface most functions are obvious so you can start right off tweaking existing loops.

The device features a new "unlock main preset list" handling, which disconnects the main preset list from the different sections, so you can change the main and the sections preset list independant from each other, which gives you a wide control range over preset handling.

The loops are divided in 16 to via ext. or int. Mididclock syncable sections, which you can switch on/off. So you can easily determine, when a loop part should be hearable or not. Each section can alter the start/end point and therefor its duration, while start and end point are tied together.

Additionally you can put a high, low or band pass on every section, modulated by a sync'ed LFO. This way you can e.g.remove a hihat just for the choosen section.
The distortion stage features different kind of distortions due to some special prefiltering and includes a sound enhancement / exciter section.

Due to the massive amount of controls there are some additional windows available, where not frequently used controls are placed. These contain e.g. controls for the LFO, the envelope for the gates, settings for the filters and the distortion stage.
To get your setup better organized, there are four additional preset lists provided for separate sections.

Although there are many features included, the dsp consumption is actually quite low due to intelligent dsp usage guidelines. E.g. each unused filter section unloads from dsp automatically as well as there are switches to unload the distortion stage from dsp.

You can even use this device as an insert effect, just drag it in an insert and switch to external audio. Of course all the retriggering, which is dependant on the midi note on signal, won't work in this case as well as the third and fourth sample insert slot.


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1.2 Limitiations & Specifications

As you might have expected, this device works only with the Scope Fusion Platform developed by creamw@re .
Minimum requirement is sfp 3.x.

XTC as well as Mac OS9 functionality isn't tested yet, therefor no guaranty, that it works.
If there's anyone brave enough to check it out for me, please contact me .

Other than that the device should work as expected on Win98/2k/XP .


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1.3 Installation

Installation Windows :

Copy the Presets- and Devices folders found within the zip-archive, into the sfp directory found on your harddisk.
Then the device will be listed in the Sampler Section of the sfp menu or the live bar context menu.

Installation Mac :

Unzip with StuffIt and copy the device and preset lists to the appropriate directories, where sfp is installed ( /sfp/devices/sampler for the device and /sfp/presets/ for the preset file).

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1.4 Legal Stuff

Don't distribute or deliver this device on any media without my agreement. The software is delivered "as is", damage or harm to your gear are your own responsibility. Blablabla ...

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2. Audio Path Section

2.1 Sample Insert Slots & external Input

Just drag&drop audio files from the explorer/finder into the sample inserts slots to load them into the device. You can also use the little LEDs on the right to open a file browser dialogue.

For removing the samples out of the slot, hit the delete (not backspace) key on your computer keyboard.

Instead of using ready made loops you can also use external audio (e.g. from your sequenzer). Just switch the buttons below "Ext." on.

The yellow LED on the top is for the "unlock main preset" feature explained later in this manual.

The slots can load mono 16bit audio files of the format wav, aiff and the akai/pulsar format (with the extension *.s). Of course you can also load stereo files, in this case only the left channel is played back.

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2.2 Key Settings

Hit the button "Key Settings" below the sample slots to set up the keyboard range for each sample "lane"


The transpose key sets the key, where the sample is played at its original tune and speed (often also called root key).

Min/Max sets the limit of the key range for each sample lane.

Setting for each sample lane a different key zone as well as automating the root key can enhance your performance experience dramatically.

Hint: If an audio file doesn't loop/repeat itself, after dragged in one of the slots, open it in an audio editor of your choice and add loop start and end points. Afterwards it should loop in the device, too.

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2.3 Bit Chop & Distortion/Exciter Stage

Directly after the sample player stage the signal runs through a bit chop (e.g. to emulate the famous sp1200 or other old machines with low bit output).

After the Bit Chop it runs through a special distiortion / exciter stage, its settings can be opened by a click on the grey button. The distortion stage itself can be activated with the blue LEDs on the right.

Before the distortion itself the signal passes a highpass, which filters out low frequencies, so that just the higher frequencies of your choice are distorted. Additionally a delayed and again through a highpass sent version of the distorted signal can be added to the final signal. The delayed signal cancels specific high frequencies and therefor pronounces the bottom.

With this circuit you can emulate e.g. mike - settings, tube distortions as well as excite the signal to a certain degree.

Deactivating a dist stage will also unload it from the dsps. For this you can either use the switch on the surface or the little LEDs on the right of the buttons to open the surface.

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2.4 Mono/Stereo Inserts

For each "sample lane" there is a mono insert provided. However to be able to use also stereo inserts beside of mono inserts there is a switch for stereo functionality provided. The routing of each "loop lane" is easily seen on the surface, in case of stereo the 2nd and fourth "loop lane" is routed through the right channel of each stereo insert, while the others are routed to the left inputs.

Switching from mono to stereo and vice versa unloads the inserted fx, so there is no need to unload it in a separate step before.

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2.5 Mixer


The "mixer" consists of a panning function and volume control ... that's it. Additionally there is a solo function provided for each sample lane via the orange/red LEDs.

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3. Gate Sequencer Section

This will be the part of surface, where you are doing most of your setup work.

3.1 Slices and Switches

The heavy amount of switches in the center of the surface can't be overseen. With these switches it is determined, which sample should be audible at the specific time / slice. Two switches at the same time can't be activated, however via the envelope settings explained later the attack and deacy times and therefor the duration of the slices can be set.

On the left of the sequencer switch matrix you find little LEDs for resetting each channel. Clicking on one will switch all slices of the whole channel on.
At the top you find switches with numbers, clicking on them will switch off the slice below.

Running LEDs give an appropriate visual feedback, what slice is actually playing.

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3.2 Sync to BPM

On the left top of the surface is a textfield, which can be set by drag&scrolling the mouse up/down. This setting is responsible for the speed of scanning in respect to the BPM signal. With "1/1" the audio signal is tailored in 16 slices for one bar, "2/1" is again 16 slices, but this time for the durtation of two bars and with the setting "1/2" the 16 slices fit in the half of a bar (you could also say, it is now 32 slices for one bar), etc.
If this explanation is to complicated, just try it out and you'll see what I mean :-)

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3.3 Timing Settings

Below the switch matrix (on the lower LED line) there is a line with small faders. These faders set the start point of each slice. Moving a start point also moves the end point of the previous slice, so there will never be a gap (you can easily achieve gaps by switching the desired slice off). Double clicking on the small fader will reset it.

3.4 Envelope Settings

When klicking on the button on the right top side of the surface, the envelope settings will be shown.

These determine the attack/release time of every triggered slice. Both parameters can be modulated.

Beside you find settings for the behaviour of the envelopes (linear or logarithmic/exponential.

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3.5 Preset List

For the Sequencer Matrix is a separate preset list provided (on the left side of the on/off buttons). The preset list and espacially the "unlock main preset" feature gives you further control about your performance setup.
Please read below to get more information about the preset list handling and which knobs are actually saved in presets.


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4. Filter Section


4.1 Filters

Each channel is routed through a filter. You can switch between lowpass, highpass and bandpass filters with the textfader via click&drag up/down or the knob. In case of lowpass / highpass the frequency correlates to the cutoff frequency. When bandpass is switched on, it is the center frequency.

In the signal path the filter is located after all other effects and before the mix/pan section.

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4.2 Modulation

Each filter can be modulated by a multimode LFO.
Directly on the surface you can set the amount, start point and a groove to sync it to an internal or external MidiClock to be in time with the gate sequencer. Clicking on the buttons at the left of the filter section opens additional settings for the LFOs like retrigger option, fade in/out, etc.

Setting the amount to zero unloads each LFO from dsp and therefor save dsp cycles.

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4.3 Unload DSP Feature

As just mentioned the filter stage also has a dsp saving feature like the distortion stage. The difference between the distortion stage is, here it works automatically and under normal circumstances you shouldn't notice anything about it beside a short flickering of the mouse.
When switching one kind of filter e.g. a highpass on, the other filters (lowpass, bandpass) are automatically unloaded from dsp.

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4.4 Preset List

Again for the filters and their LFOs there is a separate preset list provided, which features the same "unlock from main preset" function like the sequencer section, so you are able to control its presets independant from the main preset.
Please read below to get more information about the preset list handling and which knobs are actually saved in presets.

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5. Modulation Section

5.1 LFOs

Basically these LFOs are the same as the ones from the FilterLFO Section. Additionally you will find an offset pot for adjusting the LFOs shape to the several destinations. The LFOs will be unloaded from dsp, when setting the amount to zero.

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5.2 Destinations

You can choose between 16 modulation destinations. These are pan 1-4, exciter shape 1-4, envelope attack 1-4 and envelope release 1-4 . With these possibilities it should be easy to add some groovy shapes to your sound .
There is an issue regarding modulation of the pan pot: when modulated to fast there will be some zipper noise at low frequencies. This generally can happen with fast level changes at low frequencies. I hope, I'll find a solution in a next subrelease.

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5.3 Preset List

Again for the modulation stage there is a separate preset list provided, which features the "unlock from main preset" function explained below. Additionally a parameter will be set to its previous state, when switching its modulation off.

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6. Preset Lists in general

For four main sections is a separate preset list provided. The preset lists gives you further control about your performance setup.
The yellow LED on its right side is actually a button and will "disconnect" the main preset list from the sequencer sections settings. This e.g. allows you to use the main preset list and sequencer preset list side by side without destroying the sequencer settings by switching the main preset list.

A nice application for this feature is e.g. unlocking the sample slots, so you can switch between presets without loading new samples.

To e.g. extend your main preset list easily or transfer settings from the separate lists, load a preset for one of the separate sections, switch on the unlock feature, change main preset list and tweak all to your desire, switch off the unlock feature and then save the result as new main preset.

Generally speaking, when the unlock feature is on, presets aren't saved in the main preset list (of course due to the missing disconnection), while the separate presets always save the actual parameter state.

Following parameters found on the surface are not saved with any of the preset lists, as these are intended mainly for tweaking support. However they are saved with the project.

  • ext./int. Setting
  • BPM
  • Midi Channel
  • Solo 1-4
  • Reset 1-4
  • all "unlock main preset" buttons
  • preset list buttons
  • buttons for opening surfaces

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7. Tips

  • If samples doesn't loop, load them in a sample editor of your choice and add a loop start/end point
  • hitting a key an octave below the root key will playback the sample at the half of its original tempo (as well as an octave lower), The same in the other direction.
  • the groove or speed changes exactly, when you release the mouse button after you changed a setting, not while dragging the mouse.This is quite handy when playing live.
  • mute a sample lane by switching to external; mute external by switching the external input off, but having no sample loaded
  • unload samples and inserts by hitting the delete key (not backspace)
  • when experiencing clicks, have a look at the envelopes settings,which might be set to zero accidently
  • to have independant control over the different sections, use the "unlock from main preset" feature by switching on the yellow LED beside each preset list on.
  • "extraxt" parts of a preset from the main preset by simply saving it in one of the local prest lists, when having unlock switched off.
  • set the phase to 90° or -90° to achieve e.g. a ramp with a saw wave
  • all text fields accept keyboard or mouse input. For textfaders (click&drag) the boxes look like this: ,
    for text input with keyboard the input fields look like this:
  • Switching from mono to stereo and vice versa unloads an inserted fx, so there is no need to unload it in a separate step before
  • make arpeggio patterns by loading samples from different key zones of one synth sample library (see demo)
  • keep the mouse a while over the buttons to see descriptions of the functions, if you don't remember them
  • use the sequenzer preset list to achieve nice breaks within the loops

 

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All contents ©2004 by Wolfgang Rüter