Siemens Pockettio User Manual [de]

Fitting guide Pockettio

Overview of fitting possibilities

3 trimmers for adjustment to individual hearing loss

MPO (= Maximum Power Output) trimmer, change for overall maximum

loudness

NH trimmer reduces the low frequencies

NL trimmer reduces the high frequencies

Setting the MPO control

The MPO control adjusts the maximum output level. Set the trimmer to the indicated position according to the

hearing loss at 1 kHz.

Mid Power

70 80 85 90 95

High Power

AC@1kHz [dB HL]

All hearing losses

AC@1kHz [dB HL]

30 40 60 70

140

MPO trimmer

130

120

110

100

Lo / dB spl

90

80

70

1.000100 10.000

Frequency (Hz)

Setting the NH control

Turning the NH control counter-clockwise will reduce the gain for low frequent sounds. Set the trimmer to the

indicated position according to the hearing loss at 1 kHz.

AC@1kHz [dB HL]

70 80 85 90 95

NH trimmer

130

120

110

100

Lo / dB spl

90

80

1.000100 10.000

Frequency (Hz)

Setting the NL control

The NL control optimizes the low frequencies.

NL trimmer

130

120

110

100

Lo / dB spl

90

80

1.000100 10.000

Frequency (Hz)

Tips & Tricks

If sounds are unnatural

If sounds are muffled, like in a tunnel

If voices sound unclear

MPO NH NL Program Tips

P3 Set the volume control to a high but

comfortable position.

P1, P2

P2

If sounds are too sharp or shrill

If speech is difficult to understand

Sound qualityOwn voiceLoudness

when in noisy surroundings

If speech is difficult to understand
when in quiet surroundings

If the instrument whistles („feedback“)

If own voice is too loud

If own voice is too shrill or harsh

If own voice is too boomy

If loud sounds are uncomfortably loud

If speech is too soft

If loud speech is too loud

P2

P1

Turn VC up

Turn VC down

P1, P3

P1, P2

P1 In general, set the MPO trimmer to a

high but comfortable position, in order
to maximize speech intelligibility in all
situations. Make sure the volume
control is set to the maximum position
(6) when adjusting the MPO trimmer.

Turn VC up

If all sounds are too loud

If all sounds are too soft

If the background noise is too loud

If loud noise is too loud

Apply any one of the listed modifications, or a combination.

P2

P2

Turn VC down

Turn VC up

Turn VC down