The tinnitus test is to collect some quantitative data, as far as possible to determine the cause, lesion location, severity, and observe the efficacy.However, because tinnitus itself is only a subjective symptom, there is currently a lack of objective test indicators to determine the presence or absence of tinnitus and the severity of tinnitus.
Suitable for ultrasound products and all products with tinnitus treatment.
3. Tinnitus masking matching test
1) Frequency matching of tinnitus tones
Tinnitus can be a single tinnitus sound or several tones, either pure tones or noises. However, most patients with tinnitus are pure tones, so the frequency or maximum tone can be determined by matching the tones. An annoying theme.During the test, the subject should first understand that the tone does not belong to the category of intensity or loudness, and the two should not be confused, and then determine whether the tinnitus is pure tone, narrowband noise, or mixed sound, and the subject should be made aware that the matching sound may be It cannot be exactly the same as tinnitus, but it should be pointed out which sound is closer to tinnitus.
Due to the low reliability of tone matching, and the clinical significance of accurate matching for diagnosis and treatment, there is no clear and specific relationship between the cause of tinnitus and the matching tone frequency, so there is no need to use a tinnitus analyzer in clinical practice. Special equipment, and a pure tone audiometer can be used for tinnitus matching.
The test frequency starts from 1000Hz and the closest frequency, and the same side and opposite side can be matched. Starting from a lower intensity, the intensity of each frequency should be the same (0～15dBSL), then change the matching frequency and adjust the frequency According to the frequency classification of the pure tone audiometer, the interval can be as small as possible, and the participant can compare the test tone with the tinnitus tone. When the two are the same or similar, the test frequency is the tinnitus tone.
Frequency of test series number comparison (kHz) Participant’s response frequency (kHz)
1 1 and 2 2
2 2 and 3 3
3 3 and 4 4
4 4 and 5 5
5 5 and 6 5
2) Loudness matching of tinnitus
In order to understand the loudness of tinnitus itself, in order to have a clear understanding of the intensity required to completely mask the tinnitus, loudness matching should be done.
4. Tinnitus masking effect test
1) Minimum masking level
It is also called the tinnitus masking curve test. It is to determine the minimum intensity level of the test sound that can just mask the tinnitus. According to the matching frequency of the tinnitus, select pure tones or narrow-band noise, and do the same side and opposite side masking test with a frequency of 250～8000Hz. The test method is similar to loudness matching. The sound intensity starts from below the threshold, and the sound is given in increments of 2dB. The sound is given intermittently. When the sound masks the tinnitus, the subject responds to this intensity level. It is the minimum masking level, and the curve formed by it is the masking curve.
The advantage of the masking curve is to understand the masking degree of tinnitus at the same frequency, distant frequency or frequency zone within a certain range of tinnitus.In order to observe the effect of treatment.
2) Time decay of masking
Use the minimum masking level for continuous masking. If the tinnitus reappears, increase the masking sound intensity by 5dB. If the tinnitus reappears, increase the intensity again. The tinnitus reappears for the third time, or the entire test time has reached 3
3) Aftereffect inhibition