The compact representation of harmonic amplitudes in the sinusoidal coding of speech is an important problem in low bit rate speech compression. A widely used method to achieve this is by the all-pole modeling of the spectral envelope. Often a perceptually warped frequency scale is applied in the all-pole modeling to improve perceived accuracy at low model orders. In this work, an attempt is ma...

This paper reviews the historical development of phonetic vowel systems from 1617 to 2005. In times where the vowel system of the International Phonetic Alphabet (IPA) is the de facto standard in phonetic sciences it is important to learn more about predecessors and alternative considerations of how vowel systems could be organized. This concerns matters of transcriptions, ideas on parameters o...

introduction: on the importance of the formant frequency, it is enough to say that the first three formants of a vowel and their internal relationships are the major components in detection of vowel type by listener. moreover, the quality of a vowel depends on its factorial frequencies. the main application of measuring factorial frequency is for description of vowel errors because recognizing ...

Vowel quality perception in quantity languages is considered to be unrelated to vowel duration since duration is used to realize quantity oppositions. To test the role of microdurational variations in vowel category perception in Estonian listening experiments with synthetic stimuli were carried out, involving five vowel pairs along the close-open axis. The results show that in the case of high...

This paper describes an approach to the detection of stress in spoken New Zealand English. After identifying the vowel segments of the speech signal, the approach extracts two different sets of features — prosodic features and vowel quality features — from the vowel segments. These features are then normalised and scaled to obtain speaker independent feature values that can be used to classify ...

This paper takes the view that loanword adaptation results from attempts to match the non-native percept of the L2 input, within the confines of the L1 grammar. Neither a purely perceptual nor a purely grammatical account can explain the facts. The L1 grammar includes constraints specific to mimicking foreign inputs. Where not all aspects can be replicated, the grammar prioritizes. In the Canto...

This study explores the relationship between identification, degree of nasality and vowel quality in oral, nasal and nasalized vowels in Brazilian Portuguese. Despite common belief that the language possesses contrastive nasal vowels, literature examination shows that nasal vowels may be followed by a nasal resonance, while nasalized vowels must be followed by a nasal consonant. It is argued th...

Five vowels /i, , æ, (or ), u/ in isolated /CVC/ words produced by 7 American English (AmE) and 6 Australian English (AusE) talkers were examined with a view to documenting acoustic-phonetic similarities and differences between the two accent types. The effect of Accent was significant on all vowels for at least one of the first two formants. The AusE vowel space was much more compressed relati...

This paper investigates the effect of vowel quality on the perception of coda nasals in Southern Min. The perceptual confusion experiment revealed that /m/ is the most confusable coda nasal, followed by /ŋ/ and then /n/. The high front vowel /i/ resulted in more misidentification of following coda nasals than mid vowel /ə/ and low vowel /a/. Within the same vowel context, higher formant frequen...