Department of Otolaryngology-Head and Neck Surgery, University Hospital La Paz, Secretaria de Otorrinolaringología, 4th Floor, Paseo de la Castellana 261, 28046 Madrid, Spain.
Eur Arch Otorhinolaryngol. 2013 Mar;270(4):1223-9. doi: 10.1007/s00405-012-2101-9. Epub 2012 Jul 6.
The objective of this study was to compare telephone speech perception and subjective preferences in cochlear implant users with two different speech-processing strategies: high-definition continuous interleaved sampling (HDCIS) and fine structure processing (FSP). A randomized double-blind study was designed for intra-individual comparison of HDCIS and FSP. Twenty-five post-lingually deafened patients with either the PulsarCI(100) or SonataTI(100) and Opus2 acoustic processor were tested consecutively with both coding strategies, assigned in a random order. Disyllabic word speech perception was tested 6 weeks after each fitting under the following conditions: landline use with (LWN) and without (LWoN) background noise, mobile use with (MWN), and without (MWoN) background noise and mobile use with a Bluetooth magnetic field transmitter necklace (MB). Changes in health-related quality of life (QoL) were assessed using the Glasgow Benefit Inventory (GBI) and Faber's questionnaire. Personal preferences between strategies were surveyed upon completion of the study. All subjects included in this study performed better with FSP in the landline tests. There was an improvement of 11.5 % in LWN use (p = 0.014; CI 95 % = 3-20 %) and 10 % in LWoN use (p = 0.001; CI 95 % = 5-15 %). MWoN showed an improvement of 6.3 % with FSP (p = 0.03; CI 95 % = 0-13 %). MB tests showed an improvement of 11 % with FSP (p < 0.05; CI 95 % = 1.5-22 %). Quality of life was significantly better using FSP. Eighty-four percent of participants preferred FSP. The FSP speech coding strategy improved the speech recognition of cochlear implant users when using the telephone compared to HDCIS. Cochlear implantation with FSP coding improved QoL.
本研究的目的是比较两种不同语音处理策略（高清连续交错采样（HDCIS）和精细结构处理（FSP））的电话语音感知和主观偏好。设计了一项随机双盲研究，以进行 HDCIS 和 FSP 的个体内比较。25 名后天聋的患者，使用 PulsarCI(100)或 SonataTI(100)和 Opus2 声学处理器，连续接受两种编码策略的测试，随机分配。在每次拟合后 6 周，在以下条件下测试双音节词语音感知：使用固定电话时带（LWN）和不带（LWoN）背景噪声、使用移动电话时带（MWN）和不带（MWoN）背景噪声以及使用带有蓝牙磁场发射项链（MB）的移动电话。使用格拉斯哥效益量表（GBI）和 Faber 问卷评估与健康相关的生活质量（QoL）的变化。在研究结束时调查策略之间的个人偏好。所有纳入本研究的患者在固定电话测试中使用 FSP 的表现均更好。在 LWN 使用中，FSP 提高了 11.5%（p=0.014；95%CI=3-20%），在 LWoN 使用中提高了 10%（p=0.001；95%CI=5-15%）。MWoN 使用 FSP 提高了 6.3%（p=0.03；95%CI=0-13%）。MB 测试使用 FSP 提高了 11%（p<0.05；95%CI=1.5-22%）。FSP 提高了生活质量。84%的参与者更喜欢 FSP。与 HDCIS 相比，FSP 语音编码策略提高了人工耳蜗植入者使用电话时的语音识别能力。使用 FSP 编码的人工耳蜗植入术提高了生活质量。
