>*"If I soften my voice a little more, I can speak more fluently. If there is no sound vibration."* Yes exactly, in research they make a distinction between cognitive load and conditioned stimuli. **Cognitive load**: For example, saying a full difficult phrase (like, "*Ephemeral transcendence amidst convoluted dualities"*) requires more cognitive load compared to saying the letter "A". Research proposed that the less cognitive load, the less we stutter, overall. **Conditioned stimuli**: For example, stutter pressure, the need to speak more fluently, external judgements, time pressure etc) In your comment you mentioned '**soften my voice**'. I think that softer speech, and reduced voice vibration could be considered reduced cognitive load, and I think this naturally improves fluency (I think, not sure). '**Softening your voice**' at the same time, also function as a conditioned stimulus. For example, if a stutterer is entirely convinced that he needs (or must) speak loud and clear and articulate - in order to speak more fluently (i.e., in order to make it easier to regulate speech execution).. e.g., because speaking loud and clear implies that he expresses his true self (authentic speech). In such a situation, "speaking loud and clear to show their true authentic self" can improve their fluency, while "speaking with a soft voice" can trigger more stuttering (simply because they rely on a distorted belief that they are now not expressing in their authentic self), agreed? Conclusion: So. "**Softening the voice**", in terms of a conditioned stimuli, can increase or decrease stuttering, depending on how we view stuttering, would you agree?