Evaluation of pitch coding alternatives for vibrotactile stimulation in speech training of the deaf

Barbacena, Ilton L.; Barros, Alessio T.; Freire, Raimundo C. S.; Vieira, E C A

doi:10.1088/1742-6596/90/1/012092

Cited by 4 publications

(3 citation statements)

References 4 publications

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“…This work used the proposed transformations [6] [11] in order to transform voice pitch in the tactile scale as illustrated in Figure 2. Based on the results from psychophysic experiments and vibrotactile stimulator characteristics, the system designer can choose the F 1 , F 2 and F a values of the stimulation frequency [10].…”

Section: A Proposed Transfomationsmentioning

confidence: 99%

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A signal generator for real time vibrotactile stimulations

Barbacena

Alan

Freire

et al. 2011

ISSNIP Biosignals and Biorobotics Conference 2011

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A compact and reduced cost signal generator with variable frequency is presented in this work. It is programmed through serial communication, with application in systems of real time training for hearing impaired people with vibrotactile feedback. This signal generator was developed in order to correct delays caused by digitalization and voice signal processing in real time applications. Using an external generator, one separates the action or signal generation, to be applied in the tactile or vibrotactile actuator, from the acquisition and voice signal processing part.

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Section: A Proposed Transfomationsmentioning

confidence: 99%

“…This work presents the codification evaluation proposed in [11]. The goal is to help hearing impaired people achieve a fundamental frequency.…”

Section: Introductionmentioning

confidence: 99%

A signal generator for real time vibrotactile stimulations

Barbacena

Alan

Freire

et al. 2011

ISSNIP Biosignals and Biorobotics Conference 2011

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show abstract

“…This work presents the codification evaluation proposed in [11] in order to aid fundamental frequency learning by hearing impaired people. For this, it is used a real time system along with a signals generator to correct time delay proceeding from the voice capture signal processing through the microphone, as well as the A/D conversion and the fundamental frequency estimate.…”

Section: Introductionmentioning

confidence: 99%

A low cost signal generator for real time vibrotactile stimulations for hearing impaired people

et al. 2009

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A compact and reduced cost signal generator with variable frequency is presented in this work. It is programmed through serial communication, with application in systems of real time training for hearing impaired people with vibrotactile feedback. This signal generator was developed in order to correct digitalization decurrent delays and voice signal processing in real time applications. By means of the generator use, one takes apart the action or signal generation, to be applied in the tactile or vibrotactile actuator, from the acquisition part and voice signal processing.

show abstract