Understand an Audiogram and the Impact of the Speech (Banana) perception

Human ear is capable of hearing sounds as soft as a sound made by a leaf in quiet environment. Human hearing ranges between 20Hz to 20KHz. Testing all the range of frequencies are not practically possible. We all communicate through speech; if a person is unable to hear speech bothers more than if he is not aware of the environmental sounds. So, any Audiologist focus to asses hearing at speech frequencies than other frequencies. Speech is a complex signal that consists of frequency scattered from 250Hz to 6KHz, depending on the place of speech production and manner of production, the frequency varies for each sounds in speech. That is the reason why you see audiogram plotted between 250Hz to 8KHz.

Different Degrees (Levels) of Hearing Loss

Hearing threshold can vary from person to person and ear to ear even in person with hearing sensitivity within normal limits. The levels of hearing loss are typically defined as follows:

Slight Hearing loss: 15dBHL-25dBHL

This level of hearing loss applies only to children. Children who have hearing in this range are defined as having a “slight” hearing loss. These children will not need hearing aids, but should be monitored on a frequent basis to verify the hearing loss is not progressing and also the academic performance at school.

Mild hearing loss: 25dBHL-40dBHL

In children, a “mild” hearing loss is not a slight problem: a mild hearing loss can cause major difficulties with articulation and some language acquisition skills too. People with a mild hearing loss often miss or get confused with the softer consonant sounds like s, t, th, and f. Hearing becomes even more difficult in the presence of background noise. Children with hearing in this range benefit from the use of hearing aids with mild gain. One should check also check for loudness tolerance problem while fitting hearing aids.

Moderate hearing loss: 41dBHL-55dBHL

This is a moderate hearing loss. The newborn hearing screening program is designed to pick up hearing losses in the moderate range (or greater). Individuals with moderate hearing loss will require hearing aids for conversation and children will need intervention with auditory verbal therapy to obtain age appropriate speech and language skills. Moderate hearing loss also affects performance at school if left unattended.

Moderately Severe hearing loss: 56dBHL-70dBHL

Individuals with this level of hearing loss cannot hear any of the sounds of speech at typical conversational levels without hearing aids. Children will require auditory therapy and hearing aids to obtain age appropriate speech and language skills. Intensive speech therapy and follow up will help to prevent these children getting away from peer group interaction.

Severe hearing loss: 71dBHL -90dBHL

Hearing aids begin to lose effectiveness as the degree of hearing loss increases, due to sound distortion (caused by the amplified signal and the missing inner hair cells in the cochlea). Powerful hearing aids are beneficial to some individuals, while others will use cochlear implants to obtain access to sound.

Hearing aids or cochlear implants, along with auditory rehabilitation therapy are necessary to develop age-appropriate speech and language skills in children.

Profound hearing loss: Greater than 91dBHL

Hearing aids are generally not effective for obtaining all of the sounds of speech with this level of hearing loss. Some young children will wear hearing aids to stimulate the auditory nerve until a cochlear implant is obtained.

Cochlear implants are able to provide access to all of the sounds of speech, so that many children who obtain implants and have early auditory rehabilitation therapy are able to develop age-appropriate speech and language skills. If an auditory-oral method of training is not selected, children can develop language through the use of sign language.


An audiogram is a graph of an individual’s hearing ability.

  • On an Audiogram, the frequency, or pitch of the sound, is mentioned along the horizontal axis. Lower pitched sounds (bass drum) are on the left-hand side of the chart, and higher frequency sounds (shrill, bird chirping) are along the right-hand side of the chart. For the purposes of human speech, the important frequencies are from 250Hz – 8,000Hz. For reference purposes, Middle C on a piano is at 250 Hz.
  • The volume or the loudness of the sound is along the vertical axis. Sound volume increases down the length of the chart. Sound is measured in decibels (dB), which does not increase in a linear fashion. 50dBHL is much, much louder than 10dBHL.
  • The “speech banana” is the figurative area on an audiogram where individual speech sounds take place. The speech banana superimposed on the audiogram on the right is an English speech banana: each language has its own sounds of speech, and its own speech banana. Low frequency sounds like “M” and “Z” are on the left, and high frequency sounds like “F” and “S” are on the right.


  1. Great content! Super high-quality! Keep it up! 🙂

    1. Thank you so much for the compliments

    2. Hi. Thank you

  2. Long time supporter, and thought I’d drop a comment.

    Your organization’s wordpress site is very sleek – hope you don’t mind me asking
    what theme you’re using? (and don’t mind if I steal
    it? :P)

    I just launched my small businesses site –also built in wordpress like yours– but the theme slows (!)
    the site down quite a bit.

    In case you have a minute, you can find it by searching
    for “royal cbd” on Google (would appreciate any feedback)
    – it’s still in the works.

    Keep up the good work– and hope you all take
    care of yourself during the coronavirus scare!


    1. Hi, Thanks for reaching me and the appreciations. I am using the “Charity” theme, I had visited your site and checked with gtmetrix. It says, slow loading time. check into that to rank better. Keep in touch

  3. It’s a pity you don’t have a donate button! I’d without a doubt
    donate to this excellent blog! I guess for now i’ll settle for bookmarking
    and adding your RSS feed to my Google account. I look forward to brand new updates
    and will talk about this website with my Facebook group.
    Chat soon!

    1. Hi. Thnks for reaching, will update at the earliest

  4. I like this post, enjoyed this one appreciate it for putting up.

    1. Thank you so much.

  5. Very quickly this website will be famous among all blogging people, due to it’s fastidious articles or reviews.

    1. Hi,
      Thank you so much for the wishes

  6. Pretty! This has been an incredibly wonderful article. Thanks for supplying this information.

  7. I was recommended this blog by my cousin. I’m not sure whether this post is written by him as no one else know such detailed about my difficulty. You’re wonderful! Thanks!

  8. Hey There. I found your blog using msn. This is a really well written article. I will make sure to bookmark it and come back to read more of your useful information. Thanks for the post. I?ll certainly return.

  9. Excellent post. I used to be checking continuously this weblog and I’m impressed! Very useful information specially the remaining part 🙂 I take care of such information much. I was looking for this particular info for a long time. Thank you and best of luck.

  10. I must say you’ve done a amazing job with this. Also,

  11. I have you bookmarkedto look at newthings you post…

  12. I believethat is oneof the most important informatio

  13. It’s pretty worth enough for me. Inmy opinion, if al

  14. I could not refrain from commenting.Very well

  15. I’m amazed at how fast your blog loaded on my cell ph

  16. I cannot thank you enough for the post.Thanks Again. Fantastic.

  17. I was suggested this website by my cousin. I am not
    sure whether this post is written by him as no one else
    know such detailed about my difficulty. You are incredible!


  18. Thanks to my father who informed me concerning this weblog, this website is really amazing.

  19. great post, very informative. I wonder why the opposite experts of this
    sector don’t notice this. You should continue your writing.
    I’m sure, you have a great readers’ base already!

  20. I simply want to mention I am newbie to blogging and site-building and honestly loved your website. Most likely I’m planning to bookmark your site . You really come with perfect posts. Kudos for sharing with us your web page.

  21. Best you can see in the morning !

  22. Excellent site you have got here.. It’s difficult to find quality writing
    like yours nowadays. I really appreciate people like you!
    Take care!!

  23. Excellent pieces. Keep posting such kind of information on your
    site. Im really impressed by your site.
    Hello there, You’ve performed a fantastic job.
    I’ll definitely digg it and for my part recommend to my friends.
    I am confident they’ll be benefited from this site.

  24. Hi! This is my first comment here so I just wanted to give a
    quick shout out and say I really enjoy reading through your blog posts.
    Can you suggest any other blogs/websites/forums that deal with the same topics?
    Thank you so much!

  25. Hi i am kavin, its my first occasion to commenting anyplace, when i read this piece of writing i thought i could also create comment due to this brilliant

  26. Thank you for the good writeup. It in reality was a amusement account it.
    Look complicated to far delivered agreeable from you! However, how can we keep up a correspondence?

  27. I’ve been exploring for a little for any high quality articles or weblog posts on this kind of area .
    Exploring in Yahoo I finally stumbled upon this website.
    Studying this information So i’m glad to express that I have a
    very excellent uncanny feeling I discovered exactly what I needed.
    I most without a doubt will make sure to don?t disregard this site and give it a look regularly.

  28. Hi Dear, are you actually visiting this website daily, if so then you will without doubt take fastidious experience.

  29. Thank you for the auspicious writeup. It in fact was a amusement account
    it. Look advanced to more added agreeable from you!
    However, how can we communicate?

  30. Good reading, but I need to read 1 more time. Thanks! Will be good for this month SEO Service project.

  31. I blog frequently and I really appreciate your content.
    The article has truly peaked my interest. I will bookmark your blog and keep checking for new information about
    once a week. I opted in for your Feed too.

  32. Stunning story there. What occurred after?

    Take care!

  33. Incredible points. Outstanding arguments.
    Keep up the amazing effort.

  34. I was curious if you ever thought of changing the page layout of your blog? Its very well written; I love what youve got to say. But maybe you could a little more in the way of content so people could connect with it better. Youve got an awful lot of text for only having 1 or 2 pictures. Maybe you could space it out better?

  35. The following time I review a blog, I really hope that it doesn’t dissatisfy me as high as this one. I imply, I recognize it was my choice to check out, yet I actually believed youd have something intriguing to say. All I hear is a number of whimpering concerning something that you might fix if you werent as well hectic searching for interest.

  36. What’s up i am kavin, its my first occasion to commenting
    anyplace, when i read this paragraph i thought i could also create comment due to this good post.

  37. This is the perfect webpage for anyone who would like
    to understand this topic. You know a whole lot its almost tough to
    argue with you (not that I actually will need to…HaHa).
    You definitely put a fresh spin on a topic which has been written about
    for years. Great stuff, just great!

Leave a Reply

Your email address will not be published. Required fields are marked *