Xclude “Include patents” and “Include quotes”. The search resulted in 1079 hits for sound localization and 670 hits for sound lateralization. These contents were sorted in descending order of relevance. The 1000 hits in the upper limit displayed in the top rated for sound localization and also the 670 hits for sound lateralization had been investigated. After inspection of the URLs, it was identified that 982 hits for sound localization and 653 hits for sound lateralization have been valid for analysis, after excluding links that displayed a “Not found” or “Not connected” message. These hit numbers were set because the initial values for screening for this review. The screening approach plus the number of resulting hits are shown in Figure 1. Consequently, nine scientific articles for the critique of sound localization and 5 for sound lateralization were picked up. The 5 articles for sound lateralization, however, have been exactly the same because the nine articles for localization, so these nine articles had been selected. Furthermore, the nine articles for sound localization have been categorized into those with normal-hearing participants with bilateral simulated CHL (three articles: Table 1) and these with bilateral CHL (six articles: Table 2).Audiol. Res. 2021,Table 1. Studies on sound localization or lateralization with bone conduction for simulated conductive hearing loss from 2012 to August 2021. No. Authors (Year) Participants Devices Stimuli Presentation Levels Setup Twelve loudspeakers (aligned in a horizontal circular set up: an angular interval of 30 ) Test Situations Evaluation of BCD1 (ADHEAR), comparison involving unilateral and bilateral fitting, and comparison in between BCD1 and BCD2 (Baha five) (i) Unaided, (ii) aided with one particular BAHS sound processor mounted on a SoundArc, (iii) aided with 2 BAHS sound processors on a single SoundArc, (iv) aided with a single BAHS sound processor on a softband, and (v) aided with 2 BAHS sound processors on a single soft band Typical hearing, unilateral plug, unilateral plug + ipsilateral aBCD, unilateral plug +ipsilateral aBCD+ contralateral pinna mold, bilateral plugs, bilateral plugs + bilateral aBCDs, and bilateral plugs + unilateral aBCDGawliczek et al. (2018a) [21]15 participants with induced bilateral CHLaBCD(s) (ADHEAR) and BCD(s) attached to a softband (Baha5)White noise (200 ms duration)Between 60 and 65 dB SPLGawliczek et al. (2018b) [22]15 participants with simulated bilateral CHL with a combination of ear plugs and silicon mould materialBCD(s) (Baha5) (SoundArc and a softband)White noise (200 ms duration)60, 65, and 70 dB SPLTwelve loudspeakers (aligned within a horizontal circular set up: an angular interval of 30 )Snapp et al. (2020) [23]11 ��-cedrene Biological Activity listeners with simulated CHL with plug(s)aBCD(s) (ADHER)Broadband (BB; 0.50 kHz), high-pass (HP; 30 kHz), and low-pass (LP; 0.5.five kHz) noise bursts (150 ms duration)45, 55, and 65 dB ATwenty-four loudspeakers (the horizontal (0 ) and vertical (+40 /-30 ) planes (The speakers had been covered by a black, sound emitting curtain)Abbreviations: aBCD, adhesive bone conduction device; BAHS, bone-anchored hearing systems; CHL, conductive hearing loss.Audiol. Res. 2021,Table two. Research on sound localization or lateralization with bone conduction device(s) for bilateral conductive hearing loss from 2012 to August 2021.No. Authors (Year) Participants ten young children with severe bilateral CHL due to congenital key or minor ear anomalies with microtia or Thiophanate-Methyl MedChemExpress anotia or on account of resistant chronic inflammation 32 sufferers with conge.