Although the screen of the game is 2D, there are cases where you want to place a sound source in 3D space.

Although speakers are often restricted to be on a horizontal line at the height of the ear, there are various arrangements such as stereo speakers, 5.1 ch, 7.1 ch etc.

If you wanted to specify the pan individually for the 2 ch or 5.1 ch outputs, it would take time and effort to create all the data.

In ADX, Pan offers a mechanism to share these pan settings.
Except for some special cases, we recommend that you use Pan.

For example, specify the sound to be played from the left speaker at -30 degrees, and from the right speaker to + 30 degrees.

This is called angle pan.

Pan is the extension of the angle to the back speaker.
If you are using only the front side, you can create it as both 2ch and 5.1ch pan data.

Using AISAC and Track automation, you can control the pan though base on its angle. This makes it possible to make a sound rotate while maintaining the global pan of parent objects such as the Track or the Cue.
It is also posssible to add a random component to it.

Where are the sounds playing in the back output in 2 ch?

For the sound that are in back, if you are going to downmix the final 2 ch within ADX, surround components are -3 dB and folded back to the front side and output.
When a 2 ch downmix is performed on the playback environment side (PC, game platform etc), the processing is performed by each device.

About volume change in monaural waveform

In ADX, when changing the angle of the sound source, the volume changes at equal distance.

The original waveform is monaural, and it is played back at an angle of 0 degrees (front).
In this case, because the equal distance panning is performed, the level meter changes as if it dropped by -3 dB.

This depends on how the original waveform editor plays in mono.
It is common to output Lch signals directly from Rch.

In ADX, panning is possible at 360 degrees.
Equal distance panning is performed.

For example, if the source material is monaural, setting the angle to -30 degrees will output from L speaker at the same level as the source material.

If you want to play the original monaural waveform at L and R, increase the volume of mono material by 3 dB.

In this case, it is important to be aware that the volume may change too much when you change the angle and localize to the speaker position. In addition, if you mix these monaurally, the volume may increase as well. It can also cope with sufficient headroom (with a margin so that the volume does not exceed).

In the case of stereo material and 5.1ch material, the original volume is maintained. If there is no rear, it changes depending on the processing of the downmix such as output from the front speaker at -3dB.