···1// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
2// See the LICENCE file in the repository root for full licence text.
3004using osu.Framework.Audio.Mixing;
5using osu.Framework.Audio.Sample;
6using osu.Framework.Bindables;
···5152 public Bindable<int> PlaybackConcurrency { get; } = new Bindable<int>(Sample.DEFAULT_CONCURRENCY);
5354- private IAudioMixer mixer;
5556 protected override void OnMixerChanged(ValueChangedEvent<IAudioMixer> mixer)
57 {
···1// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
2// See the LICENCE file in the repository root for full licence text.
34+#nullable enable
5+6using osu.Framework.Audio.Mixing;
7using osu.Framework.Audio.Sample;
8using osu.Framework.Bindables;
···5354 public Bindable<int> PlaybackConcurrency { get; } = new Bindable<int>(Sample.DEFAULT_CONCURRENCY);
5556+ private IAudioMixer? mixer;
5758 protected override void OnMixerChanged(ValueChangedEvent<IAudioMixer> mixer)
59 {