DEVELOPMENT OF AN IMPROVED TACTUAL VOCODER

描述：（改编自申请人的摘要。）智能 听觉系统提出了可穿戴触觉声码器的发展， 一种戴在皮肤上的人工听觉系统， 学习口头交流。 先前市售 类星体系统有三个重要的缺点：1） 基于不灵活的模拟电路，因此没有 可编程，以满足个别用户的特殊需求 或康复方案，2）已经无效， 发射机的基频（音高），关键因素之一 手术植入人工听力系统的成功， 3)无法快速传递光谱信号 （格式转换），最重要的特征之一， 语音编码 建议的IntelliVoc（智能声码器）设备将解决 以前可用系统的故障，1）提供一个 一个小型化的系统，可以通过语言和听觉编程， 临床医生调整系统的特性（信道分配， 动态范围、频率编码等） 个人需求 用户或康复计划，2）利用新的宽带 振动器，其将音高语调轮廓直接作为频率传输 振动的皮肤，和3）采用实时线性预测 编码（LPC）信号处理方法来传递共振峰和共振峰 过渡到皮肤。

DESCRIPTION: (Adapted from the Applicant's Abstract.) Intelligent Hearing Systems proposes development of awearable tactual vocoder, an artificial hearing system worn on the skin, to assist the deaf in learning to communicate verbally. Previous commerciallyavailable tactileaids have had three important drawbacks: such systems 1) have been based upon inflexible analog circuitry, and consequently have not been programmable to accommodate special needs of individual users or programs of rehabilitation, 2) have been ineffective as transmitters of fundamental frequency (pitch), one of the key factors in the success of surgically implanted artificial hearing systems, and 3)have not been capable of transmitting rapid spectral cues (format transitions), one of the most important characteristics of the speech code. The proposed IntelliVoc (Intelligent Vocoder) device would address the failures of previously available systems by 1) providing a miniaturized system that can be programmed by a speech and hearing clinician to adapt the systems's characteristics (channel allocation, dynamic range, frequency coding etc.) to the individual needs of users or programs of rehabilitation, 2) utilizing a new wideband vibrator to transmit pitch intonation contours directly as frequency of vibration to the skin, and 3) employing a realtime Linear Predictive Coding (LPC) signal processing approach to deliver formants and formant transitions to the skin.