Hi All,
I'm trying to better understand HA specs. It seems one of the most key things is the max output at full gain given a 90 dBspl input, a.k.a. OSPL90. Here's an example:
That's hard to read, but the graph line hits the 90 dBSPL at 8kHz. If I understand that correctly, it means there is no amplification at 8kHz - output = input.
Above 8kHz, it actually dampens the sound. This spec is of a popular HA from Costco. Do I understand this plot correctly?
My hearing loss is not at all bad up to about 4kHz, then it falls, and plummets between 7kHz and 8kHz. So I think I need a hearing aid with strong amplification at 8kHz. This would rule out Costco!
Thanks
-ATM
I'm trying to better understand HA specs. It seems one of the most key things is the max output at full gain given a 90 dBspl input, a.k.a. OSPL90. Here's an example:
That's hard to read, but the graph line hits the 90 dBSPL at 8kHz. If I understand that correctly, it means there is no amplification at 8kHz - output = input.
Above 8kHz, it actually dampens the sound. This spec is of a popular HA from Costco. Do I understand this plot correctly?
My hearing loss is not at all bad up to about 4kHz, then it falls, and plummets between 7kHz and 8kHz. So I think I need a hearing aid with strong amplification at 8kHz. This would rule out Costco!
Thanks
-ATM