Benefits of directional microphones and noise reduction circuits for improving Baha^®hearing performance

The Effectiveness of the Directional Microphone in the Oticon Medical Ponto Pro in Participants with Unilateral Sensorineural Hearing Loss

“…This is an interesting finding, particularly for the BP-100, as the more advanced DM performed poorer than OM. This is contrary to the aforementioned studies examining a DM compared to OM, which reported a mean directional advantage of 0.9 to 7 dB (Hodgetts, 2005;Kompis et al, 2007;Linstrom et al, 2009;Oeding et al, 2010;Flynn et al, 2011;Pfiffner et al, 2011). This difference may be due to differences in participant population, loudspeaker arrangements, speech material, and output level and type of noise.…”

“…Few studies, however, have examined the performance of the adaptive multichannel DM in current BAHSs. Flynn et al (2011) compared the Divino to the Cochlear Americas' BP-100 using the Swedish version of the HINT (Hä llgren et al, 2006) with HINT sentences from 0°and 65 dB SPL of HINT noise presented from 180°. A subgroup of participants with USNHL was examined, and the Divino's OM was compared to the BP-100's OM and DM.…”

“…The BP-100's OM also performed, on average, 1.7 dB (p , 0.01) better than the Divino's OM. This may be due to the position compensation algorithm of the BP-100, which attempts to compensate for the placement of the BAHS behind the pinna (Flynn et al 2011). Pfiffner et al (2011) examined the Divino's OM and DM and the BP-100's OM and DM in participants with conductive and mixed hearing losses with Oldenburger sentences (Kollmeier and Wesselkamp, 1997) presented from 0°and 65 dB SPL of speech babble noise presented from 180°.…”

Better Understanding of Direct Bone-Conduction Measurement: Comparison with Frequency-Specific Bone-Conduction Tones and Brainstem Responses

“…In the BC direct measurement, the BAHA Fitting Software (version 5.3, Cochlear Ltd., Sydney, Australia) combined with the BAHA ® 5 Sound Processor (Cochlear Bone Anchored Solutions AB, Gothenburg, Sweden) was used. The stimuli were presented by a tone of 0.5, 1, 2, and 4 kHz, which is a typical procedure to measure the thresholds in patients with BAHS implants [12]. The thresholds of BC PTA were behaviorally obtained using a B71 bone transducer headset (RadioEar, Middelfart, Denmark) connected to a GSI 61 audiometer (Grason-Stadler Inc., Eden Prairie, MN, USA) while being presented the same frequencies as those in BC direct.…”

Digital processing technology for bone-anchored hearing aids: randomised comparison of two devices in hearing aid users with mixed or conductive hearing loss

“…6,7 The sound processors produced by both companies may be attached to the original Branemark titanium abutment. Firstly, the company Cochlear Ltd (Cochlear Bone Anchored Solutions AB, Mölnlycke, Sweden) launched a new product called the BP100, which incorporated full digital technology for the first time.…”