There are a few possible reasons why someone might perceive that you are yelling even though you don't hear yourself yelling:
Hearing Impairment: If the person who is speaking does not have normal hearing, they might have difficulty accurately perceiving the volume of their own voice. In this case, they may speak louder than they intend to because they cannot hear themselves properly.
Volume Mismatch: Sometimes, the acoustics of the environment can cause a mismatch in how your voice sounds to you versus how it sounds to others. For example, if you're in a noisy room or speaking in a large, echoing space, your voice might sound quieter to you, leading you to raise your volume unconsciously.
Vocal Projection: Some people naturally have louder voices or tend to project their voice more, making it sound louder to others than it does to themselves.
Sensory Adaptation: When you speak, your brain is continuously processing sensory information, including the sound of your voice. Over time, your brain can adapt to the sound of your voice, making it less noticeable to you, while others may still perceive it as loud.
Lack of Awareness: Some individuals may not be aware of their volume level or may not notice changes in their vocal intensity during conversation, especially if they are emotionally engaged or excited.
It's essential to consider the context and environment in which you are speaking. If you frequently encounter situations where people perceive you as yelling, you may want to be mindful of your speaking volume and try to modulate it appropriately. If you have concerns about your hearing or vocal habits, it might be helpful to consult with a healthcare professional or a speech-language pathologist to assess your hearing and communication patterns. They can provide guidance and support to help you improve your communication skills and vocal control.