Name
Abstract | ||
|---|---|---|
Interference signals which superimpose the desired speech signals are a severe problem for hearing impaired people, since they suffer from a reduced speech intelligibility which cannot be completely compensated by an increase of the input signal level with hearing aids. Directional signal processing with beamformers and noise reduction try to increase the speech intelligibility by enhancing the signal-to-noise ratio for the disturbed input signals.In this contribution, first differential beamformers are described and analysed under the consideration of hearing aid constraints, such as the microphone distance and head shading effects. Differential beamformers are analysed, adaptation procedures are deduced and real-word hearing aid problems are addressed. Also, a performance analysis tool is described for the measurement of adaptive beamformers.In a second step, a combined noise reduction and hearing aid gain optimization procedure is presented which optimizes the speech intelligibility for hearing impaired persons under consideration of the hearing loss and the instantaneous signal-to-noise ratio of the ambient sound field. |
Year | DOI | Venue |
|---|---|---|
2006 | 10.1016/j.sigpro.2005.07.038 | Signal Processing |
Keywords | Field | DocType |
differential microphone arrays,hearing aid,speech signal,differential beamformers,noise reduction,microphone mismatch,interference cancellation,maximum length sequences,hearing aid gain optimization,hearing loss,adaptive beamformers,real-word hearing aid problem,speech intelligibility,beamformer performance measurements,reduced speech intelligibility,adaptive signal processing,beamforming,head related transfer functions (hrtf),hearing aid constraint,maximum length sequence,head related transfer function,adaptive beamforming,signal to noise ratio,signal processing | Audio signal,Hearing aid,Signal-to-noise ratio,Single antenna interference cancellation,Speech recognition,Hearing loss,Adaptive filter,Microphone,Mathematics,Intelligibility (communication) | Journal |
Volume | Issue | ISSN |
86 | 6 | Signal Processing |
Citations | PageRank | References |
6 | 1.71 | 3 |
Authors | ||
1 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Henning Puder | 1 | 164 | 23.82 |