Vocal Companion

Muscle tension dysphonia (MTD) and voice therapy practice

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Written by Mark Jidon, who has muscle tension dysphonia. Mark isn’t a clinician: medical facts on this page link to their sources.

Not medical advice

This guide explains what the research and health organizations say about muscle tension dysphonia. It can't tell you what's going on with your voice. Only a doctor and a speech-language pathologist (SLP) who have examined you can do that. Ask them before you start or change any voice exercise.

See a doctor if your voice has been hoarse for more than three weeks, especially if you haven't had a cold or the flu [1]. Also see a doctor if you're coughing up blood, have trouble swallowing or breathing, feel a lump in your neck, have pain when speaking or swallowing, or lose your voice completely for more than a few days [1].

What is muscle tension dysphonia?

Muscle tension dysphonia (MTD) is a voice problem caused by too much tension in the muscles in and around the voice box (larynx) [2]. Dysphonia means a change in the voice, such as its quality, pitch, loudness or effort, that makes it harder to communicate. People often call it hoarseness [6].

MTD is usually classed as a functional voice disorder [3, 4]: the main problem is how the muscles work to make your voice, not the structure of the vocal folds [3, 4]. Sometimes it develops alongside another problem in the vocal folds (called secondary MTD) [4]. The overly tight muscles can lead to throat pain, voice strain, fatigue and hoarseness [4].

What causes it?

The causes are still debated [5]. A review of the research grouped them into three kinds: psychological or personality factors, how the voice is used (misuse or overuse), and the body compensating for another problem in the throat [2]. Several different factors can be involved [2].

How is it diagnosed?

Usually your doctor asks about your symptoms and may refer you to an ear, nose and throat doctor (otolaryngologist) [1]. They look at your vocal folds with a thin, lighted scope [1]. Cleveland Clinic describes a videostroboscopy, where a flexible scope with a camera goes through your nose to show how your vocal folds work when you speak [4]. They may also feel the muscles in your neck and listen to how you speak [4].

The 2018 hoarseness guideline from the American Academy of Otolaryngology–Head and Neck Surgery says the larynx should be examined before voice therapy is prescribed, and the results passed to the SLP [6]. Researchers recommend that a laryngologist and an SLP work on MTD together [2].

How common are voice problems?

In a 2012 US national survey, 7.6% of adults said they'd had a voice problem in the past year, about one in 13 [7]. Only a minority sought care for it [7]. In a survey of adults in two US states, 29.9% had had a voice disorder at some point in their lives [8]. These numbers cover all voice problems. We didn't find a reliable figure for MTD alone.

What does voice therapy involve?

Voice therapy with an SLP is the main treatment for MTD [4, 9]. The hoarseness guideline strongly recommends it for voice problems that therapy can help [6].

Therapy can include two kinds of work [2, 3]:

  • Indirect: learning how the voice works and looking after it (vocal hygiene).
  • Direct: voice exercises with your SLP, and sometimes manual therapy, where the therapist uses massage or gentle pressure around the voice box to release tight muscles [2, 4].

Techniques studied for MTD include semi-occluded vocal tract exercises, nasal sounds combined with pitch changes, vocal function exercises and manual therapy [10]. Semi-occluded exercises partly close the mouth, for example by voicing through a straw or doing lip trills [3]. In one small trial (21 people), people improved with both resonant voice therapy and another approach, stretch-and-flow, with no clear difference between the two [11]. Your SLP will choose what suits you.

To be honest about the evidence: a review found voice therapy helps adults with functional voice problems [12], but studies have weaknesses in their methods [10], and the real effect is probably smaller than published results suggest [12]. The suggested exercises in Vocal Companion, and what the research says about each, are listed at vocalcompanion.com/sources.

How long does it take? Does it go away?

It depends on the person. Cleveland Clinic says that with regular voice therapy, people with mild symptoms may recover within weeks, and more severe cases may take several months [4]. A 2003 review says voice therapy by an experienced SLP works for most people with functional voice problems in the short term [5]. Longer-term results have been studied less. One small study of 25 people with MTD found most gains were still there at least two years after therapy, though seven people improved little [13].

Why practice at home matters, and why it's hard

Voice therapy usually includes exercises to practice at home between appointments [4]. Patients commonly say it's hard to keep up [14]. Many people don't finish voice therapy: one study at two voice centers found a 65% dropout rate [15]. Another found that the wait between the ENT referral and the first SLP visit was one of the strongest predictors of whether people finished [16].

The evidence on practice tools is limited and mixed. In one trial of 34 adults with a strained (hyperfunctional) voice, those given a practice app with reminders and recorded instructions practiced more often than those given written instructions, though their motivation didn't change [14]. The app came from the researchers' own lab. In a trial with children, therapy videos didn't change how often they practiced [17]. No study has tested Vocal Companion.

Where Vocal Companion fits

I'm Mark Jidon, and I have MTD. When I was diagnosed, I left the clinic with a sheet of exercises and a follow-up date weeks away, and at home I kept losing track. I built Vocal Companion for those weeks in between.

It's a voice rehab practice app: it reads your exercises aloud with a timer, lets you add the exact ones your SLP gives you, and keeps a journal of how your voice feels so you can share a summary at your next appointment. It doesn't diagnose, treat or measure your voice, and it doesn't replace your SLP. More at vocalcompanion.com/about.

Sources

  • [1] National Institute on Deafness and Other Communication Disorders (NIDCD), NIH. Hoarseness. Page last updated 6 March 2017. nidcd.nih.gov
  • [2] Van Houtte E, Van Lierde K, Claeys S. Pathophysiology and treatment of muscle tension dysphonia: a review of the current knowledge. Journal of Voice, 2011. pubmed.ncbi.nlm.nih.gov
  • [3] American Speech-Language-Hearing Association (ASHA). Voice Disorders, Practice Portal. asha.org
  • [4] Cleveland Clinic. Muscle Tension Dysphonia. Last updated 23 April 2026. my.clevelandclinic.org
  • [5] Roy N. Functional dysphonia. Current Opinion in Otolaryngology & Head and Neck Surgery, 2003. pubmed.ncbi.nlm.nih.gov
  • [6] Stachler RJ, Francis DO, Schwartz SR, et al. Clinical Practice Guideline: Hoarseness (Dysphonia) (Update). Otolaryngology–Head and Neck Surgery, 2018. pubmed.ncbi.nlm.nih.gov
  • [7] Bhattacharyya N. The prevalence of voice problems among adults in the United States. The Laryngoscope, 2014. pubmed.ncbi.nlm.nih.gov
  • [8] Roy N, Merrill RM, Gray SD, Smith EM. Voice disorders in the general population: prevalence, risk factors, and occupational impact. The Laryngoscope, 2005. pubmed.ncbi.nlm.nih.gov
  • [9] Barsties v. Latoszek B, Watts CR, Hetjens S. The Efficacy of the Manual Circumlaryngeal Therapy for Muscle Tension Dysphonia: A Systematic Review and Meta-analysis. The Laryngoscope, 2024. pubmed.ncbi.nlm.nih.gov
  • [10] da Cunha Pereira G, de Oliveira Lemos I, Dalbosco Gadenz C, Cassol M. Effects of Voice Therapy on Muscle Tension Dysphonia: A Systematic Literature Review. Journal of Voice, 2018. pubmed.ncbi.nlm.nih.gov
  • [11] Watts CR, Hamilton A, Toles L, Childs L, Mau T. Intervention Outcomes of Two Treatments for Muscle Tension Dysphonia: A Randomized Controlled Trial. Journal of Speech, Language, and Hearing Research, 2019. pubmed.ncbi.nlm.nih.gov
  • [12] Ruotsalainen J, Sellman J, Lehto L, Verbeek J. Systematic review of the treatment of functional dysphonia and prevention of voice disorders. Otolaryngology–Head and Neck Surgery, 2008. pubmed.ncbi.nlm.nih.gov
  • [13] Altan E, Barmak E, Söylemez D. Voice over time: long-term effects of therapy in muscle tension dysphonia with a 24-month follow-up. European Archives of Oto-Rhino-Laryngology, 2026. pubmed.ncbi.nlm.nih.gov
  • [14] van Leer E, Lewis B, Porcaro N. Effect of an iOS App on Voice Therapy Adherence and Motivation. American Journal of Speech-Language Pathology, 2021. pubmed.ncbi.nlm.nih.gov
  • [15] Hapner E, Portone-Maira C, Johns MM. A study of voice therapy dropout. Journal of Voice, 2009. pubmed.ncbi.nlm.nih.gov
  • [16] Portone-Maira C, Wise JC, Johns MM, Hapner ER. Differences in temporal variables between voice therapy completers and dropouts. Journal of Voice, 2011. pubmed.ncbi.nlm.nih.gov
  • [17] Braden MN, van Leer E. Effect of MP4 Therapy Videos on Adherence to Voice Therapy Home Practice in Children With Dysphonia. Journal of Voice, 2017. pubmed.ncbi.nlm.nih.gov