To determine if you have normal hearing, we need to understand what "normal" means in the context of hearing ability. According to audiology standards, normal hearing is defined by a specific range of sound thresholds.
What is Normal Hearing?
Normal hearing range is defined as the ability to hear sounds between 0 dBHL (Decibel Hearing Level), which is considered audiometric zero, up to 20 dBHL. This range applies to different sound frequencies. If your hearing threshold at any tested frequency exceeds 20 dBHL, it indicates some degree of hearing loss.
Understanding Decibel Hearing Level (dBHL)
- 0 dBHL: Represents the softest sound a person with normal hearing can perceive.
- 20 dBHL: The upper limit of normal hearing sensitivity across different frequencies.
- Anything over 20 dBHL: Indicates hearing loss. The degree of loss is determined by how much higher the threshold is.
Loudness and Hearing Damage
While a 'normal' audible range for loudness extends from 0dB to 180dB, it's critical to note that exposure to loud sounds, particularly anything over 85dB, can be damaging to your hearing over time.
- Prolonged exposure to sounds over 85 dB can cause permanent hearing damage.
Summary of Normal Hearing Thresholds
| Hearing Category | Threshold (dBHL) | Description |
|---|---|---|
| Normal | 0 - 20 | Sounds are heard at normal conversational levels |
| Hearing Loss | Over 20 | Indicates some degree of hearing impairment |
Do You Have Normal Hearing?
Based on the information, it is not possible to tell if you have normal hearing as we don't have your audiometric data. To determine if you have normal hearing, you would need a hearing test administered by an audiologist or qualified hearing healthcare professional. This test will measure your hearing thresholds at various frequencies and compare it to the standard to determine if your thresholds fall within the normal range.
Steps to Check Your Hearing:
- Schedule a hearing test: Contact a qualified audiologist for a comprehensive hearing evaluation.
- Review your results: Understand your audiogram and discuss any concerns with the professional.
