Phase I: eligible participants were individuals aged 18-60 years with normal hearing thresholds across 250-8,000 Hz and normal vocal characteristics Phase II: eligible participants were individuals aged 18-60 years with normal hearing thresholds across 250-8,000 Hz Average signal-to-noise ratio (SNR), Thai Word-In-Noise test (Thai-WIN), Different age groups, Normal hearing
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Phase I: 1. Be native Thai speakers, 2. Pass the Thai version of the Voice Handicap Index (Thai-VHI) assessment with a score of 13 or higher, as assessed by a qualified speech-language pathologist, 3. Pass the GRBAS scale assessment with a score of zero, as assessed by a speech-language pathologist, 4. Have normal hearing, defined as pure-tone air conduction thresholds of 25 dB HL or better at the frequencies of 250, 500, 1,000, 2,000, 3,000, 4,000, 6,000, and 8,000 Hz in both ears Phase II: 1. Be native Thai speakers, 2. Pass the Thai Version of Tinnitus Functional Index (TFI-Th) assessment with a score below 17, 3. Have normal hearing, defined as pure-tone air conduction thresholds of 25 dB HL or better at the frequencies of 250, 500, 1,000, 2,000, 3,000, 4,000, 6,000, and 8,000 Hz in both ears
Exclusion criteria
Exclusion criteria: Phase I: No exclusion criteria Phase II: 1. Have a history of neurological or brain disorders, 2. Have a history of sudden sensorineural hearing loss (SSNHL), 3. Are currently receiving psychiatric treatment
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Average signal-to-noise ratio (SNR) values from the Thai Word-In-Noise test (Thai-WIN) will be established across different age groups of Thai individuals with normal hearing After the successful synthesis of the Thai-LTASS noise Thai-WIN results (dB SNR) | — |
Secondary
| Measure | Time frame |
|---|---|
| To assess age-related differences in average SNR from the Thai-WIN test among normal-hearing Thai individuals After the successful synthesis of the Thai-LTASS noise Statistical analysis | — |
Countries
Thailand
Contacts
Faculty of Medicine, Khon Kaen University