Jump to content
Science Forums

Personal Sound Amplifiers (Psa)


kowalskil

Recommended Posts

Personal Sound Amplifiers (PSA)

Hearing aids are very expensive, typically from $3000 to $6000 a pair. 

But some people might postpone wearing them, for many year. 

I describe this alternative at my university website:


Feel free to share this short essay with others.

Comments will be appreciated. 

Ludwik Kowalski (see Wikipedia)
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...