Dsl M[I/O] Options - Interacoustics Affinity 2.0 Additional Information

2.0
Affinity Additional Information
2.6.7.3

DSL m[i/o] options


Instrument: Select the type of hearing instrument your client is fitted with. This does not directly
affect the target but the information is saved with the session.

Vent size: Select the vent size your client is fitted with. This does not directly affect the target but the
information is saved with the session.

Transducer: Select the transducer used to obtain the hearing thresholds. The selected transducer
will affect the threshold markings in the SPL-o-gram and thus the target calculation.
Note the option to choose ABR eHL and IA ASSR eHL. ABR thresholds are assumed to be entered
in eHL meaning that the system only corrects for the transducer. IA ASSR (Interacoustics ASSR
system) corrects the audiogram simultaneously during the ASSR measurement. Therefore, the HL to
SPL conversion from the REM440 module does not include a transducer correction. When the
hearing aid fitting is based on an audiogram obtained with the Interacoustics ASSR, ensure that "IA
ASSR eHL" is selected. this will ensure that double compensation is avoided.

Coupler: Select the coupler type used for the RECD. The illustration below shows the different
coupler types (Dillon 2001, pp. 77).
Name: Select DSL m[i/o]. Note that it is version implemented is
DSL mi/o v5.0a.

Age: Age: Select the age of your client. This is relevant
whenever a predicted RECD/REUR is used since these
are highly dependent on ear canal size which varies
across ages. Note that when the audiogram is measured
with insert phones, the RECD is used in the conversion
from dB HL to dB SPL. The RECD thereby has an effect
on the thresholds which will result in a target change.

Client type: DSL mi/o v5.0a allows for selecting between
a Pediatric or Adult prescription. The two prescriptions
are based on the concept that adults and children with
hearing loss have distinctly different preferences for
listening level. The DSL mi/o v5.0a algorithm generates
different prescriptions based on client age in order to
take into consideration that adults and children not only
require, but also prefer, different listening levels.
Page 166