ADX Tutorial No.24: How to adjust Pitch using AtomModulation

Introduction

Here we will explain how to adjust Pitch using the "AtomControlBusMix" and "AtomControlBus" assets.
These two assets can be compared to a MIDI controller and a slider.
ControlBus is a slider that adjusts the volume, Pitch, filter cutoff frequency, etc., and "ControlBusMix" controls these.

It is based on the Audio Modulation Quick Start Guide.
The explanation will also be based on the assumption that an actor containing an "AtomComponent" called "SampleVoiceWave" is placed on the level.

AtomControlBus settings

Create the "AtomControlBus" asset.
Here, name it "MC_Bus".

Open the details of the MC_Bus asset and select the Pitch asset under General > Parameter.

By Default, the "Pitch" asset is not View, so you need to click the gear icon and check "Show Plugin Content" to make it View.

ControlBusMix settings

Next, create the "AtomControlBusMix" asset.
Here, name it "MC_BusMix".


Add one element of "Mix Stages" in the details of "MC_BusMix" and select "MC_Bus".
Although only one "Control Bus" is set here, multiple "Control Buses" can be set and AISAC parameters can be managed with this one asset.

Applying ControlBusMix

Applies the Pitch control made with "ControlBusMix" to the sound.
There are multiple ways to apply settings, and settings can be applied in the following groups.

• Settings per “AtomSoundClass”
• Settings per “AtomSoundCue”
• Settings in “AtomComponent” units Here we will explain each of these settings one by one.

Pitch control with “AtomSoundClass” asset

What is AtomSoundClass?

You can control parameters such as volume and Pitch for multiple "Atom Sound Cue" or "AtomComponent" that have registered "AtomSoundClass" assets.
However, " **Multipier" in "Atom Sound Cue" or "AtomComponent" is multiplied by the "AtomSoundClass" parameter.
This feature is similar to the AtomCraft category, but CRIWARE UE Plugin treats it differently.

“AtomSoundClass” asset settings

We will explain how to use the "AtomSoundClass" asset to change parameters using the "ControlBusMix" asset.
There are other ways to set it directly to "AtomComponent", "AtomSoundCue", etc., but I will omit that here.

Create an "AtomSoundClass" asset from "ADX Atom" → "Classes".

Open the details of the "AtomSoundClass" asset you created and specify "ControlBus" by following the steps below.

1. Check “Modulate” in “Modulation” → “Pitch”
2. Add one element with “+” in “Modulation” → “Pitch Modulators” → “Pitch Modulators”
3. Specify the “MC_Bus” created above in “Modulation” → “Pitch Modulators” → “Pitch Mdoulators”

How to apply parameters to the target audio

Open the details of "AtomComponent" of "SampleVoiceWave" placed on the level.
Specify the created "AtomSoundClass" asset in "Sound Class Override" from "Adcaned" under the "Sound"Item.

Pitch control with “AtomSoundCue” asset

How to apply parameters to the target audio

Open the details of the "AtomCueSheet" asset that has the "AtomSoundCue" to be applied.
Then, right-click "AtomSoundCue" in the "Cues"Item to be applied and open the details with "Edit".

Pitch control by specifying "AtomSoundClass" asset

Set in "Class" of "Sound" in the details of "AtomSoundCue" asset.
For this Item, please specify the "AtomSoundCue" asset that has the above setting "Pitch control with "AtomSoundClass" asset".

Pitch control by specifying Modulator

The "Volume"Item introduced in "Setting the "AtomSoundClass" asset" above is now called "Modulation," but the setting Item is the same.

Attention

Even if you check the "Modulate"Item, the slider value will be referenced.
Also, when multiple Modulators are specified, the method of calculating the value differs depending on the "Volume/Pitch", "Highpass", and "Lowpass"Item.
The parameters described as "all parameters" below are all values ​​including slider values.

Volume/ Pitch

The result of multiplying all parameters is adopted.

Highpass

The maximum value is adopted for all parameters.

Volume/ Pitch

The minimum value is adopted for all parameters.

Pitch control with “AtomComponent” asset

You can configure settings from the details of "AtomComponent". The same result can be obtained by setting the Item introduced in "Pitch control with 'AtomSoundCue' asset".

Pitch control with Blueprint

The method below is to create a Blueprint that changes the Pitch every time you press "1" on the keyboard.

1. Specify the BusMix ("MC_BusMix") you want to Active.
2. Specify the target ("MC_BusMix").
3. Specify the "MC_Bus" specified in "Mix Stages" of "MC_BusMix".
4. In the image, "Value" is set to "0.1" and "1.0" respectively.

Please Attention that this "SetControlBusMixByFilter" Filter is an asset search filter, and is different from an audio signal processing filter.
In addition, the following three Item can be selected to narrow down "AtomControlBusMix" using Filter. If multiple Item are set, "AtomControlBus" assets in "AtomControlBusMix" that meet all the conditions will be targeted.

• AddressFilter: Search by bus name (searches similar to regular expressions such as "*" are also possible)
• Param Class Filter: Search by Class for "AtomModulationParameter"
• Param Filter: Search in "AtomModulationParameter" asset
• Value: value to change

Drop-down list that can be set in the "Modulation"Item

Modulator settings can be set with "AtomSoundClass", "AtomSoundCue", and "AtomComponent".
You can control which settings are applied when different settings are made. Specify this setting in the drop-down list of the Modulation Item.

Also, "AtomSoundClass", "AtomSoundCue", and "AtomComponent" have setting priorities, and the settings with higher priority are called "parent settings."
Also, "target" refers to "AtomSoundClass", "AtomSoundCue", and "AtomComponent" that have been configured.
** Attention **
Parent settings and "target" are defined terms for explanation purposes.

"Disable"

Modulation settings will be disabled.

"Inherit" (Default setting)

Reflects the parent's Modulation settings.
Parents are determined in the following order:

1. 「AtomSoundClass」
2. 「AtomSoundCue」
3. "AtomComponent"
   
   
   
   

"Override"

The modulator set for the target will be applied.
Attention note that parent settings are not reflected.

“Union”

The result of multiplying the parent configuration parameter by the target configuration parameter is reflected.

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