Advanced Bionics LLC, Valencia, California, U.S.A.
Otol Neurotol. 2014 Jun;35(5):803-9. doi: 10.1097/MAO.0000000000000301.
To demonstrate benefits for speech perception and everyday listening in quiet and in noise with a speech-enhancement strategy called ClearVoice, which was designed to improve listening in complex acoustic environments without compromising hearing in quiet.
A 2-week randomized crossover design was used to evaluate ClearVoice in 46 adults unilaterally implanted with a CII/HiRes 90K cochlear implant who had at least 6 months experience with HiRes Fidelity 120 sound processing. Speech perception was assessed using the AzBio sentences presented in quiet, in speech-spectrum noise and in multitalker babble. Subjective listening benefit and strategy preference were assessed with a questionnaire. ClearVoice has 3 gain settings (low, medium, and high), each intended as a full-time listening option according to individual preference. Speech understanding after acute use of ClearVoice-low was compared with HiRes Fidelity 120 during an initial test session. Speech perception abilities were compared with HiRes Fidelity 120 after 2 weeks of exclusive use of ClearVoice-medium, and after 2 weeks of exclusive use of ClearVoice-high. During a fifth week, participants were fit with 3 programs for comparison (HiRes Fidelity 120, ClearVoice-medium, and ClearVoice-high), after which, they reported preference and everyday listening benefits via a questionnaire.
ClearVoice significantly improved speech understanding in speech-spectrum noise and multitalker babble, did not compromise listening in quiet, was preferred for everyday listening, and provided improved hearing in real-life situations.
ClearVoice improves hearing in noise for cochlear implant recipients who use HiRes Fidelity 120 sound processing.
展示一种名为 ClearVoice 的语音增强策略在安静和嘈杂环境下的语音感知和日常聆听方面的益处，该策略旨在改善复杂声学环境中的聆听体验，同时又不会损害安静环境下的听力。
采用为期 2 周的随机交叉设计，评估 46 名单侧植入 CII/HiRes 90K 人工耳蜗且具有至少 6 个月 HiRes Fidelity 120 声音处理经验的成年人使用 ClearVoice 的效果。使用 AzBio 句子在安静、语音频谱噪声和多说话者背景噪声下评估语音感知。使用问卷评估主观聆听获益和策略偏好。ClearVoice 有 3 个增益设置（低、中、高），每个增益设置都根据个人偏好设计为全时聆听选项。急性使用 ClearVoice-low 后的语音理解能力与 HiRes Fidelity 120 在初始测试会话中进行比较。在 2 周的 ClearVoice-medium 独家使用后，以及在 2 周的 ClearVoice-high 独家使用后，比较语音感知能力与 HiRes Fidelity 120。在第 5 周，参与者使用 3 个程序进行比较（HiRes Fidelity 120、ClearVoice-medium 和 ClearVoice-high），之后通过问卷报告偏好和日常聆听获益。
ClearVoice 显著提高了语音感知在语音频谱噪声和多说话者背景噪声中的理解能力，不会损害安静环境下的聆听能力，是日常聆听的首选，并且在现实生活中提供了更好的听力体验。
ClearVoice 改善了使用 HiRes Fidelity 120 声音处理的人工耳蜗使用者在噪声环境下的听力。
