Journal: Folia Phoniatrica et Logopaedica

Article Title: Effects of the Voice over Internet Protocol on Perturbation Analysis of Normal and Pathological Phonation

doi: 10.1159/000285807

Figure Lengend Snippet: The waveform of a normal voice signal. a Waveform of the original normal voice signal. b Waveform after G.729 VoIP transmission. c Waveform after MP3 compression encoding. d Waveform after WMA compression encoding. e Waveform after FLAC encoding.

Article Snippet: In this study, a 16-bit mono channel FLAC encoder (GoldWave V.5.23) was used to encode the original voice signals into FLAC files and to decode FLAC signals back to PCM signed 16-bit mono channel WAV signals.

Techniques: Transmission Assay

Journal: Folia Phoniatrica et Logopaedica

Article Title: Effects of the Voice over Internet Protocol on Perturbation Analysis of Normal and Pathological Phonation

doi: 10.1159/000285807

Figure Lengend Snippet: The distributions of a percent jitter for normal voice signals, b percent shimmer for normal voice signals, c percent jitter for pathological voice signals, and d percent shimmer for pathological voice signals as estimated by CSpeech. Distributions are shown for original signals, signals after G.729 VoIP transmission, signals after MP3 compression encoding, signals after WMA compression encoding, and signals after FLAC encoding. The line inside the box marks the median, whiskers show 10th and 90th percentiles, and the dots are the outlying points.

Article Snippet: In this study, a 16-bit mono channel FLAC encoder (GoldWave V.5.23) was used to encode the original voice signals into FLAC files and to decode FLAC signals back to PCM signed 16-bit mono channel WAV signals.

Techniques: Transmission Assay

Journal: Folia Phoniatrica et Logopaedica

Article Title: Effects of the Voice over Internet Protocol on Perturbation Analysis of Normal and Pathological Phonation

doi: 10.1159/000285807

Figure Lengend Snippet: The distributions of a percent jitter for normal voice signals, b percent shimmer for normal voice signals, c percent jitter for pathological voice signals, and d percent shimmer for pathological voice signals as estimated by MDVP. Distributions are shown for original signals, signals after G.729 VoIP transmission, signals after MP3 compression encoding, signals after WMA compression encoding, and signals after FLAC encoding. The line inside the box marks the median, whiskers show 10th and 90th percentiles, and the dots are the outlying points.

Article Snippet: In this study, a 16-bit mono channel FLAC encoder (GoldWave V.5.23) was used to encode the original voice signals into FLAC files and to decode FLAC signals back to PCM signed 16-bit mono channel WAV signals.

Techniques: Transmission Assay

Journal: Folia Phoniatrica et Logopaedica

Article Title: Effects of the Voice over Internet Protocol on Perturbation Analysis of Normal and Pathological Phonation

doi: 10.1159/000285807

Figure Lengend Snippet: Percent jitter and percent shimmer values estimated by CSpeech (mean ± SD)

Article Snippet: In this study, a 16-bit mono channel FLAC encoder (GoldWave V.5.23) was used to encode the original voice signals into FLAC files and to decode FLAC signals back to PCM signed 16-bit mono channel WAV signals.

Techniques:

Journal: Folia Phoniatrica et Logopaedica

Article Title: Effects of the Voice over Internet Protocol on Perturbation Analysis of Normal and Pathological Phonation

doi: 10.1159/000285807

Figure Lengend Snippet: Percent jitter and percent shimmer values estimated by MDVP (mean ± SD)

Article Snippet: In this study, a 16-bit mono channel FLAC encoder (GoldWave V.5.23) was used to encode the original voice signals into FLAC files and to decode FLAC signals back to PCM signed 16-bit mono channel WAV signals.

Techniques: