The aim of this project is to investigate the short- and the longer-term effect of intonation training on vocal characteristics, listener perceptions and patient related outcome measures (PROMS) in gender diverse people using a randomized sham-controlled trial.
Age range
18 Years – 60 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Change in general intonation shift (Hz and ERB)
Timeframe: baseline (before treatment) - at the end of the treatment period (after 4 weeks) - 4 (and 8) weeks after the end of the treatment period (after 8 (and 12) weeks (each measurement +/- 20 min.)
Change in final intonation shift (Hz and ERB)
Timeframe: baseline (before treatment) - at the end of the treatment period (after 4 weeks) - 4 (and 8) weeks after the end of the treatment period (after 8 (and 12) weeks (each measurement +/- 20 min.)
Change in general pitch range (Hz and ERB)
Timeframe: baseline (before treatment) - at the end of the treatment period (after 4 weeks) - 4 (and 8) weeks after the end of the treatment period (after 8 (and 12) weeks (each measurement +/- 20 min.)
Change in pitch variation index (Hz/s and ERB/s)
Timeframe: baseline (before treatment) - at the end of the treatment period (after 4 weeks) - 4 (and 8) weeks after the end of the treatment period (after 8 (and 12) weeks (each measurement +/- 20 min.)
Gender perception of the voice
Timeframe: During a listening experiment (+/- 40 minutes).
Change in patient's satisfaction with their voice - VAS
Timeframe: baseline (before treatment) - at the end of the treatment period (after 4 weeks) - 4 (and 8) weeks after the end of the treatment period (after 8 (and 12) weeks (each measurement +/- 5 min.)
Change in patient's satisfaction with their voice - TWVQ
Timeframe: baseline (before treatment) - at the end of the treatment period (after 4 weeks) - 4 (and 8) weeks after the end of the treatment period (after 8 (and 12) weeks (each measurement +/- 5 min.)
Change in patient's satisfaction with their voice - VHI
Timeframe: baseline (before treatment) - at the end of the treatment period (after 4 weeks) - 4 (and 8) weeks after the end of the treatment period (after 8 (and 12) weeks (each measurement +/- 5 min.)