Table 1.

Therapy themes and references.

Therapy theme	Treatments	Assessment
Hearing compensation	Hearing aids Folmer and Carroll, 2006; Searchfield et al., 2010; McNeill et al., 2012; Peltier et al., 2012; Oz et al., 2013; Shekhawat et al., 2013b; Jalilvand et al., 2015; Searchfield, 2015; Sereda et al., 2016 Threshold adjusted sound Davis, 2006; Davis et al., 2007; Wazen et al., 2011; Peltier et al., 2012; Vanneste et al., 2013; Parra, 2015; Henin et al., 2016; Li et al., 2016 Cochlear implant Tyler et al., 2015	Pure Tone Audiogram Davis, 2006; Folmer and Carroll, 2006; Davis et al., 2007; Searchfield et al., 2010; Wazen et al., 2011; McNeill et al., 2012; Peltier et al., 2012; Oz et al., 2013; Shekhawat et al., 2013b; Vanneste et al., 2013; Jalilvand et al., 2015; Parra, 2015; Searchfield, 2015; Tyler et al., 2015; Henin et al., 2016; Li et al., 2016; Sereda et al., 2016
Pitched-matched	Notched sound Lugli et al., 2009; Courtenay et al., 2010; Teismann et al., 2011; Györi, 2016 Band-pass noise Serquera et al., 2015 Tonal stimulation Hanley and Davis, 2008; Reavis et al., 2010, 2012; De Ridder et al., 2015; Eggermont and Tass, 2015; Hauptmann et al., 2015, 2016; Hoare et al., 2015; Williams et al., 2015 Auditory training Herraiz et al., 2007; Hoare et al., 2010, 2014b; Jepsen et al., 2010; Roberts and Bosnyak, 2011; Spiegel et al., 2015; Wise et al., 2015, 2016 Phase shifting Herraiz et al., 2007; Vermeire et al., 2007; Choy et al., 2010; Meeus et al., 2010; Fioretti et al., 2011; Heijneman et al., 2012 Hearing aids Schaette et al., 2010; McNeill et al., 2012; Searchfield, 2016 Replica tinnitus Viirre, 2010; Drexler et al., 2016 Emphasis tinnitus pitch Bessman et al., 2009; Mahboubi et al., 2012	Pitch matching Herraiz et al., 2007; Vermeire et al., 2007; Hanley and Davis, 2008; Bessman et al., 2009; Lugli et al., 2009; Choy et al., 2010; Courtenay et al., 2010; Meeus et al., 2010; Reavis et al., 2010, 2012; Schaette et al., 2010; Fioretti et al., 2011; Roberts and Bosnyak, 2011; Teismann et al., 2011; Heijneman et al., 2012; Mahboubi et al., 2012; McNeill et al., 2012; Hoare et al., 2014a, 2015; Hutter et al., 2014; Eggermont and Tass, 2015; Hauptmann et al., 2015, 2016; Serquera et al., 2015; Spiegel et al., 2015; Williams et al., 2015; Györi, 2016 Tinnitus Avatar Viirre, 2010; Spiegel et al., 2015; Wise et al., 2015, 2016; Drexler et al., 2016
Maskability	Partial masking Tyler et al., 2007, 2012; Suzuki et al., 2016 Mixing point masking Henry et al., 2006; Huang et al., 2006; Jastreboff and Jastreboff, 2006; Jastreboff, 2007, 2011, 2015; Kim et al., 2014; Ostermann et al., 2016 Hearing aids McNeill et al., 2012; Searchfield, 2016 Spatial Oishi et al., 2013; Searchfield et al., 2016	Patient report Jastreboff and Jastreboff, 2006; Jastreboff, 2007, 2011, 2015; Tyler et al., 2007, 2012; McNeill et al., 2012; Oishi et al., 2013; Kim et al., 2014; Ostermann et al., 2016; Searchfield, 2016; Suzuki et al., 2016 Calculation Huang et al., 2006 Localization Searchfield et al., 2016
Reaction to sound	Nature sounds / sound type Handscomb, 2006; Ito et al., 2009; Piskosz, 2012; Herzfeld et al., 2014; Durai et al., 2015; Henry et al., 2015; Barozzi et al., 2016 Music Hann et al., 2008 Hann et al., 2008 Notched music Lugli et al., 2009; Courtenay et al., 2010; Teismann et al., 2011; Györi, 2016 Filtered music Davis, 2006; Davis et al., 2007; Hutter et al., 2014; Li et al., 2016 Discomfort to sound Bartnik and Skarzynski, 2006; Jastreboff and Jastreboff, 2006; Jastreboff, 2007, 2011, 2015; Durai et al., 2015	Patient report Davis, 2006; Handscomb, 2006; Davis et al., 2007; Hann et al., 2008; Ito et al., 2009; Lugli et al., 2009; Courtenay et al., 2010; Teismann et al., 2011; Piskosz, 2012; Herzfeld et al., 2014; Hutter et al., 2014; Durai et al., 2015; Henry et al., 2015; Barozzi et al., 2016; Györi, 2016; Li et al., 2016 Categorization of report Bartnik and Skarzynski, 2006; Jastreboff and Jastreboff, 2006; Jastreboff, 2007, 2011, 2015
Psychosocial factors	Hearing aids Searchfield, 2006; Hoare et al., 2012; Sereda et al., 2015 Partial masking Tyler et al., 2007; Anwar, 2013; Sereda et al., 2016 Adaptation Durai et al., 2015 Mixing point masking Mazurek et al., 2006; Herraiz et al., 2007; Ariizumi et al., 2010 Selection Tyler et al., 2006; Newman, 2008 #19; Newman et al., 2008; Tyler, 2012	COSIT Searchfield, 2006, 2015 STOP Newman et al., 2008 TAQ Tyler et al., 2006, 2007 Demographics and clinical history Mazurek et al., 2006; Herraiz et al., 2007; Hoare et al., 2012; Tyler, 2012; Sereda et al., 2015 Motivation Ariizumi et al., 2010 Ariizumi et al., 2010 Personality Tyler et al., 2006; Durai et al., 2015

The references were categorized to the major theme of the research or review. There were occasions where references were cross-referenced to different themes or treatment categories. Assessment was broadly classified into categories; there was variation between studies in how specific features were measured (e.g., different forms of pitch matching). TAQ, Tinnitus Activities Questionnaire; STOP, Sound Therapy Option Profile; COSIT, Client Oriented Scale of Improvement in Tinnitus.