You may have selected either 24 or 16bit audio depth in project settings. If you use 32bit depth audio clip as editing material, select 32bit.

Procedure

1) Select a project format from preset list.

2) Tick ‘Customize’ then click [OK].

3) Open Advanced settings then go to ‘Audio bit depth’.

4) Select 32bit.

5) Click [OK] to start a new project.

1) Select Settings > Project Settings.

2) Click [Change current setting…].

3) Open Advanced settings then go to ‘Audio bit depth’.

4) Select 32bit.

5) Click [OK] to apply the setting.