The importance of acoustic reflex for communication

The Importance of Acoustic Reflex in Speech Discrimination

“…A recent study conducted by Andrade et al (2011) compared three groups of normal hearers with pure-tone auditory threshold up to 20 dBHL for frequencies of 250, 500, 1000, 2000, 4000, 6000 and 8000 Hz dBNA (ANSI -1969), with inter-ear differences for frequencies less than or equal to 10 dB and age between 18 and 55 years. The following exclusion criteria were established: exposure to occupational or leisure noise, ear surgery, more than three ear infections within the last year, use of ototoxic medication and hereditary cases of deafness.…”

“…Each group consisted of 8 female participants, totaling 16 ears per group. As with Andrade (2011), speech noises were used at intensities of 40, 50 and 60 dB above the three-tone average. Using TDH39 headphones in acoustic cabin, words and noises were emitted ipsilaterally and only hits were considered, that is, words correctly repeated.…”

“…Thus, enhanced discrimination ability can be observed at all intensities, using speech noise, including at 60 dB, for the group with reflexes present, regardless of intensity, as compared to Group 3, with no reflexes present. That is, a significant difference occurs only when we compare groups of individuals without acoustic reflex in discriminating sounds in the presence of speech noise (Andrade, 2011).…”

“…In order to correctly reference this scholarly work, feel free to copy and paste the following: Kelly Cristina Lira de Andrade, Silvio Caldas Neto and Pedro de Lemos Menezes (2011). The Importance of Acoustic Reflex in Speech Discrimination, Speech Technologies, Prof. Ivo Ipsic (Ed.…”

Acoustic Reflexes in Normal-Hearing Adults, Typically Developing Children, and Children with Suspected Auditory Processing Disorder: Thresholds, Real-Ear Corrections, and the Role of Static Compliance on Estimates

“…There is some evidence to suggest that the acoustic reflex improves speech perception in noise (Borg and Zakrisson, 1974;Dorman et al, 1987;Colletti et al, 1992;de Andrade et al, 2011;Aiken et al, 2013). This evidence suggests that another potential use of acoustic reflex estimates involves the assessment of the functional role of the reflex in improving speech perception in noise.…”