Fix `Waveform` generation failing when using "no sound" device
Fix `Waveform` generation failing when using "no sound" device

ppy/osu-framework,ppy/osu-framework,smoogipooo/osu-framework,peppy/osu-framework,peppy/osu-framework,smoogipooo/osu-framework,peppy/osu-framework,ppy/osu-framework