Title :
A microelectronic core for a programmable digital hearing aid
Author :
Hidalgo, J.A. ; Tejero, J.C. ; Daza, A. ; Oballe, O. ; Gago, A.
Author_Institution :
Dept. de Electron., ETSI Ind., Malaga, Spain
Abstract :
We introduce a core for a digital hearing aid that compensates the signal spoken in sensorineural impaired listeners with object of improving their intelligibility. The technique implemented is based on a digital analysis/synthesis of speech: we divided the input signal into short time blocks then we make a multiband analysis, non-linear amplification and synthesis based in a sinusoidal model of the voice, according to the subject´s dynamic range in each band. The system works in real time and has been implemented with only one ASIC in 1μ ES2 technology including 3 RAM memories with a capacity of 2432 bits and one 16×16 multiplier. The size of the die is 30.59 mm2
Keywords :
application specific integrated circuits; compensation; digital signal processing chips; hearing aids; speech intelligibility; speech processing; speech synthesis; 1μ ES2 technology; 2432 bit; ASIC; RAM memories; die size; digital analysis; digital synthesis; dynamic range; input signal; intelligibility; microelectronic core; multiband analysis; multiplier; nonlinear amplification; programmable digital hearing aid; sensorineural impaired listeners; short time blocks; sinusoidal model; speech; voice; Application specific integrated circuits; Auditory system; Dynamic range; Microelectronics; Random access memory; Real time systems; Signal analysis; Signal synthesis; Speech analysis; Speech synthesis;
Conference_Titel :
Applications of Signal Processing to Audio and Acoustics, 1997. 1997 IEEE ASSP Workshop on
Conference_Location :
New Paltz, NY
Print_ISBN :
0-7803-3908-8
DOI :
10.1109/ASPAA.1997.625577
