Based on available information, determining definitively who has the softest voice in BLACKPINK is subjective and depends on the context. However, one reference provides some insights.
The reference suggests that in variety shows, Lisa or Rosé might be perceived as having softer voices. This perception could stem from:
- Lisa possibly lacking confidence in Korean.
- Rosé naturally having a very soft voice, leading her to appear quieter.
It's important to note that vocal perception can change depending on the situation and the style of music being performed. While Jisoo is noted as being the most confident and social member in variety shows, no direct comparison of vocal softness is provided for her. Thus, while the reference points towards Lisa and Rosé, a conclusive answer requires further vocal analysis and a consideration of various performance settings.