Emilie Meyer
Low-Frequency Oscillators (LFOs) are powerful tools that can add movement, character, and expressiveness to your music. They are typically used to modulate parameters in synthesizers, such as pitch, volume, and filters, and can be used to create a variety of effects, from subtle modulations to complex and evolving patterns. When it comes to panning on LFOs, there are a few different approaches you can take. One method is to use a plugin like Tremolo to change the phase and automate the rate and depth, allowing for creative pan effects. Another approach is to manually adjust the panning by assigning the pan knob to a controller or using a mouse. Additionally, certain software like Serum allows you to link an LFO to Pan and set it to 'Trigger' mode, giving each new note its own LFO movement. By experimenting with different LFO shapes, rates, and depths, you can create intricate and evolving panning effects that bring your music to life.
| Characteristics | Values |
|---|---|
| LFO frequency | Typically below 20 Hz |
| LFO modulation | Volume, pitch, panning |
| LFO movement | Slow, creating a sweeping, pulsing effect |
| LFO routing | Internal, external |
| LFO modes | Envelope mode |
| LFO tools | Serum, Vital, Ableton, Bitwig, LFOTool, Cableguys ShaperBox, u-he Uhbik, Native Instruments Reaktor |
| LFO techniques | Combine multiple LFOs with different shapes, rates, and depths, modulate one LFO with another, sync LFOs to BPM, use sample-and-hold function, introduce delay or phase offset, use modulation routing options |
| Panning automation tricks | Invert panning automation, use Autopan, crank settings for waveform and symmetry, send panned sounds to the middle, use white noise panning, use 3D panning |
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What You'll Learn
Using the tremolo stock plugin
Panning on LFOs can be achieved by using a tremolo effect. In FL Studio, the Fruity PanOmatic plugin can be used to create a tremolo effect. This plugin has a simple interface with a pan knob, a volume knob, and an LFO section. To create a tremolo effect, you can automate the LFO rate knob by creating automation events or clips. The specific process for creating automation may vary depending on the DAW you are using. For example, in FL Studio, you can create an automation clip by recording automation events for any parameter.
Another option for creating a tremolo effect is to use Volume Automation with Fruity Balance. This method involves using Peak Controller to create a square wave up and down pattern. You can also use PanOMatic and change the mode to a square wave, but it's important to note that the volume will not go down to zero. Additionally, you can use Gross Beat and adjust the click reduction setting in the menu to melodic.
It's worth mentioning that there are other plugins that can be used to create tremolo effects, such as Guitar Rig from Native Instruments, which offers a Stereo option for panning modulation. VolumeShaper by Cableguys is another plugin that provides a lot of creative freedom, allowing you to draw your own custom waveforms or use built-in waveforms.
When using tremolo, it's important to consider the speed/rate of the effect as it can change the rhythm and movement of the sound. Additionally, combining the tremolo effect with delay and reverb can create a unique and rhythmic sound.
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Using a DAW with built-in LFO tools
Some DAWs, like Ableton Live, come with dedicated LFO devices that can be used to modulate various parameters, including the knobs and sliders of plugins and the level and pan controls of the mixer. For example, Ableton Live offers the Max For Live LFO plugin, which can be used to control anything inside Live, including track level and panning. Similarly, Bitwig Studio offers the LFO Mod plugin, which can be used to modulate devices inserted into its FX slot.
When using a DAW with built-in LFO tools, you can experiment with different LFO shapes, rates, and depths to create intricate and evolving modulations. You can also sync LFOs to your project's BPM to ensure that modulations stay in time with your music. This is especially useful for rhythmic effects and precise synchronization with other elements in your tracks.
Additionally, you can use LFO tools to apply modulation to various parameters, such as pitch, volume, or filter cutoff. For example, you can use an LFO to produce a basic sine wave shape that cyclically slopes up and down, and then patch this shape into the main Oscillator section to control the pitch. Alternatively, you can patch the LFO into the Filter section to produce bright and dull sounds by opening and closing the tone.
By combining multiple LFOs and experimenting with modulation routing options, you can create complex and evolving patterns that add interest and depth to your sound design. Furthermore, you can use LFO shaping plugins, such as Xfer Records' LFOTool, to sculpt custom LFO curves and shapes, giving you even more control over your sound.
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Syncing LFOs to your project's BPM
LFOs are a common tool used in sound design to add movement to sounds. They are typically used to modulate parameters such as volume, pitch, and panning. To sync an LFO to your project's BPM, there are several methods you can use:
- Some LFOs have a built-in clock-sync mechanism that allows you to sync the LFO to the project's BPM.
- If your LFO does not have a built-in clock-sync, you can try using a normal oscillator sync. Set the LFO slightly longer than the clock cycle and feed the clock signal to the sync input to approximate a synced LFO.
- You can also sync LFOs to the tempo of your song. This involves calculating an approximate value for the LFO and putting it in the frequency knob so that it completes a period every 1 or 2 beats, for example. However, this method may lead to the LFO getting out of sync over time if the LFO frequency does not match the BPM accurately.
- Certain devices, such as the Batumi quad LFO, can be clocked to sync with the BPM. You can also use a clock module to handle the syncing for you.
- Modules like Pam's New Workout and Make Noise Tempi can generate LFOs/Randoms/Gates to clock multiplications and divisions, allowing for syncing to your project's BPM.
When using LFOs for panning, it is important to remember that you typically want the panning somewhere in the middle rather than panning from 100% left to 100% right. This can be controlled by adjusting the modulation amount. Additionally, certain plugins like Tremolo in Logic Pro X can be used for creative panning effects.
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Using the 'trigger' mode
Using the trigger mode in FL Studio, you can link an LFO to the panning of a sound source, allowing for dynamic movement and modulation of the sound in the stereo field. Here's a step-by-step guide on how to achieve this:
- Select the sound source you want to modulate. This could be a synthesizer, a sampler, or any other instrument within your project.
- Access the modulation settings of the sound source. This is typically found in the instrument's settings or modulation matrix.
- Assign an LFO as the modulation source for the panning parameter. Depending on the software or hardware you're using, this could be done by dragging and dropping, selecting from a menu, or other similar methods.
- Enable the "Trigger" mode for the LFO. This ensures that each new note or trigger event initiates its own independent LFO movement. This creates a unique and dynamic panning effect for each note.
- Adjust the LFO shape and speed to achieve the desired panning movement. Common shapes include sine, triangle, and square waves, each producing a different type of movement. Experiment with different shapes and speeds to find the desired effect.
- Fine-tune the modulation amount to ensure the panning stays within a usable range. You don't want the sound to pan excessively from hard left to hard right, so a more moderate range is often preferred.
- Disable any "Anchor" or "Sync" settings that may cause notes to move together at the same timing of the LFO. By disabling these, each note will have its own independent panning movement.
- Experiment with different settings and adjustments to create the desired panning effect. You can also try linking other parameters, such as KeyTracking, to the LFO rate, allowing for even more complex and interesting results.
By following these steps, you can utilize the trigger mode to create dynamic and expressive panning effects, adding depth and movement to your musical productions.
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Assigning LFOs to parameters
LFOs, or low-frequency oscillators, are used to modulate parameters such as volume, pitch, and panning. They are generally below 20 Hz, which means they create a sweeping, pulsing effect that we cannot hear. Modulations allow you to change a parameter over time, and they work with two components: sources and destinations. The source is a signal or value that affects a parameter of a synth, while the destination is the parameter you want to modulate.
When assigning LFOs to parameters, the process may vary slightly depending on the software you are using. Here are some general steps and considerations:
- Understanding your software's capabilities: Different software will have different methods for assigning LFOs to parameters. Familiarize yourself with the specific steps and features of your chosen software.
- Selecting the LFO type and shape: Choose the type of LFO you want to use, such as a sine wave, square wave, or triangle wave. Each shape will produce a different effect.
- Assigning the LFO: Simply drag and drop the LFO to the parameter you want to modulate. This process may vary depending on your software. For example, in some software, you may need to use a MIDI plug-in called Modulator, which has an LFO that can be targeted to any plug-in parameter on that track.
- Controlling the modulation amount: After assigning the LFO, you can control the amount of modulation. This can often be done by dragging a little blue circle up or down, or through a \"Matrix\" in software like Vital and Serum.
- Experimentation: Experimenting with different LFO assignments and parameters can lead to interesting and unique results. Try linking parameters at random and exploring different shapes and rates to create a variety of effects.
- In Serum, you can link an LFO to Pan and set it to 'Trigger' mode, allowing each new note to start its own LFO movement. Turning off 'Anchor' prevents notes from moving together at the same timing of the LFO.
- In Logic Pro X, you can use the tremolo stock plugin to change the phase and create panning effects. You can also assign the pan knob to a controller or use a third-party panning plugin. Additionally, Logic's MIDI FX has an LFO that can be assigned to any parameter of any plugin.
- When using Vital, keep in mind that it provides four different LFOs, and as you use them, new ones will appear, giving you up to eight different shapes to work with.
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Frequently asked questions
LFO stands for Low-Frequency Oscillator. It is a waveform generator that produces oscillations at a frequency typically lower than audible sound (below 20 Hz).
Panning is the process of distributing a sound signal to one or more audio channels in a sound system.
To pan on an LFO, you can use the tremolo stock plugin, change the phase so it pans, and automate the rate and depth. You can also assign the pan knob to a controller or do it with your mouse. In Serum, you would link an LFO to Pan and set it to 'Trigger' mode so that every new note starts its own LFO movement.
If you want to set the LFO to a specific section of a region, it is recommended to use the tremolo plugin for more creative pan effects. You can also invert the panning automation on another sound in the same frequency spectrum to avoid clashing.
You can combine multiple LFOs with different shapes, rates, and depths to create intricate and evolving modulations. You can also sync LFOs to your project's BPM to ensure that modulations stay in time with your music.
