Frye WinCHAP ver. 2.82 Manual De Usuario
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The DSL/NAL-NL1 Module
WinCHAP User’s Manual
• Apply HL Corrections: Choose whether to apply NAL age-correcting HL val-
ues. It is recommended to select Yes for this setting.
• Channels: Select the number of channels that the aid has.
• Measured RECD: Select whether the RECD measurement was made with an
HA-1 coupler or with an HA-2 coupler. This is only used when an RECD is
measured.
measured.
• Tubing: Select the tubing used in a BTE fitting. This is used when creating
coupler targets.
• Venting: Select the venting used in the earmold or the body of the aid. This is
used when creating coupler targets.
6.6.3 Understanding DSL Settings
• Circuit Type: Select whether the aid is linear, WDRC-fixed, or WDRC-vari-
able.
• HL to SPL Transform: Select the transform to use when converting data from
dB HL to dB SPL. This affects the targets and the display of the audiometric
data in the SPL displays.
data in the SPL displays.
° Predicted: Uses the client age and selected transducer to predict the HL to
SPL transform. Note: there are no age correction factors for the TDH head-
phones transducer type.
phones transducer type.
° RECD: Only available when a Transducer Type of ER3 Insert Earphone or
Insert Custom Mold is used.
° REUR: Only available when the Loudspeaker Transducer Type is select-
ed. It is assumed that the loudspeaker azimuth used for measurement of
the REUR is the same as the azimuth used for audiometric testing. You
must enter REUR values manually.
the REUR is the same as the azimuth used for audiometric testing. You
must enter REUR values manually.
° REDD: When taking this measurement, use the transducer used for mea-
suring the audiometric values.
• RE to 2cc Transform: Choose whether to use an Average or Measured RECD
when creating coupler targets.
• Maximum Output: Choose whether the maximum output value uses the
Measured or Predicted upper limit values. The maximum output is not dis-
played, but it is used in the calculation of some values.
played, but it is used in the calculation of some values.
• Loudness Function: Factors the exponent values into compression targets.
DSL defines the exponent values as the “ratio of a normal hearing loudness
exponent to the hearing-impaired individual’s loudness exponent.” Only
available with WDRC-Variable circuit type. It is recommended to have a selec-
tion of Predicted for this field.
exponent to the hearing-impaired individual’s loudness exponent.” Only
available with WDRC-Variable circuit type. It is recommended to have a selec-
tion of Predicted for this field.