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. 2022 Mar 25;16:863891. doi: 10.3389/fnhum.2022.863891

TABLE 2.

Stimulus alterations needed to match CI sound quality at Time 1 and Time 2.

First visit Second visit Insertion angle and SG frequency Match rating
Patient 1
 @ 2.7 m
Formant: + 150 Hz;
F0: + 80 Hz;
F0 contour: 100%;
Smear: Low;
BP 400–4000 Hz;
Flanger on;
Metallic.
 @ 39 m
Formant: + 100 Hz;
F0: + 80 Hz;
F0 contour: 25%;
Smear: High;
HP 400 Hz;
Flanger off;
Metallic.
 409°
650 Hz		 1st = 9.2
2nd = 9.8
Patient 2
 @ 3 m
Formant: + 100 Hz;
F0: + 10 Hz;
F0 Contour: 90%;
Smear: High;
Flanger on.
 @ 17 m
Formant: + 140 Hz;
F0: + 10 Hz;
F0 contour: 70%;
Smear: Low;
Flanger off.		 387°
750 Hz		 1st = 9.8
2nd = 9.9
Patient 3
 @ 6 m
Formant: + 320 Hz;
F0: + 10 Hz;
F0 contour: 100%;
Smear: None.
 @ 30 m
Formant: + 320 Hz;
F0: + 10 Hz;
F0 contour: 100%;
Smear: Medium.
 419°
620 Hz		 1st = 9.7
2nd = 9.0
Patient 4
 @ 10 m
Formant: no change;
F0: no change;
F0 contour: 25%
Smear: High;
BP 400–2000 Hz;
Noise VC: 10 channel;
Flanger: on.
 @ 41 m
Formant: + 500 Hz;
F0: + 50 Hz;
F0 contour: 0%;
Smear: None;
BP 400–5000 Hz;
Noise VC:12 channel;
Flanger: off.
 395°
680 Hz		 1st = 7
2nd = 8
Patient 5
 @ 20 m
Formant: + 80 Hz;
F0: + 30 Hz,
F0 contour: 100%;
Smear: Medium;
BP 400–1500 Hz;
Flanger: on
 @ 47 m
Formant: no change;
F0: + 30;
F0 contour:100%;
Smear: Max;
High pass 400 Hz;
Flanger: off		 340°
890 Hz		 1st = 8
2nd = 9