Journal article
Estimation of sound pressure levels of voiced speech from skin vibration of the neck
The Journal of the Acoustical Society of America, Vol.117(3), pp.1386-1394
03/01/2005
DOI: 10.1121/1.1850074
PMID: 15807026
Abstract
How accurately can sound pressure levels (SPLs) of speech be estimated from skin vibration of the neck? Measurements using a small accelerometer were carried out in 27 subjects (10 males and 17 females) who read Rainbow and Marvin Williams passages in soft, comfortable, and loud voice, while skin acceleration levels (SALs) and SPLs were simultaneously registered and analyzed every 30 ms. The results indicate that the mean SPL of voiced speech can be estimated with accuracy better than ±2.8 dB in 95% of the cases when the subjects are individually calibrated. This makes the accelerometer an interesting sensor for SPL measurement of speech when microphones are problematic to use (e.g., noisy environments or in voice dosimetry). The estimates of equivalent SPL, which is the logarithm of averaged relative energy of voiced speech, were found to be up to 1.5 dB less accurate than the mean SPL. The estimation accuracy for instantaneous SPLs was worse than for the mean and equivalent SPLs (on average ±6 and ±5 dB for males and females, respectively).
Details
- Title: Subtitle
- Estimation of sound pressure levels of voiced speech from skin vibration of the neck
- Creators
- Jan G Svec - Denver Center for the Performing ArtsIngo R Titze - Denver Center for the Performing ArtsPeter S Popolo - Denver Center for the Performing Arts
- Resource Type
- Journal article
- Publication Details
- The Journal of the Acoustical Society of America, Vol.117(3), pp.1386-1394
- Publisher
- Acoustical Society of America
- DOI
- 10.1121/1.1850074
- PMID
- 15807026
- ISSN
- 0001-4966
- eISSN
- 1520-8524
- Number of pages
- 9
- Language
- English
- Date published
- 03/01/2005
- Academic Unit
- School of Music; Communication Sciences and Disorders
- Record Identifier
- 9984719748302771
Metrics
2 Record Views