Been a bit lazy around Christmas, but here goes 2011
Christmas cheer is well and truly gone: so gladly has the snow.
Business seems to be looking up with a variety of new tests and follow-up from December.
Still encountering Fuse failures due to the aid splitting. Starkey have a product out called the AMP, which might fix a few. Though the sleeved design is not the smallest. On-line there has been a bit of confusion about audiograms, so I put together this basic guide.
Steve's quick no-nonsense guide to the Audiogram. Firstly: Air conduction Left - Denoted with X and/or Blue Right - with O and/or Red. Triangles/Brackets/Right Angle corners - indicative of bone conduction levels. A gap between these and the air conduction is indicative of conductive loss. Frequencies (measured in Hertz/Hz or cycles per second) Lowest on the left, highest on the right. Each of the principal Octave values are recorded. To make sense of this: Middle C on the piano is about 250Hz (256Hz), each level either side moves you up or down the Keyboard to the next C. Intensity or loss. Measured in dB(hl) 0 dB is weighted average of young adult hearing, lots of kids will be better than this. 120dB is getting on for the level of a load rock concert. Each 3dB increase is a DOUBLING of intensity - this scale is a negative log or geometric progression. To give a few example: a Normal conversation occurs around 65dB, a whisper at about 45dB, a Shotgun 155dB. Ever wonder why Clint Eastwood is deaf? A .44 revolver 170dB.
Hopefully Clint's lawyers won't be getting in touch.