Search Results (14)

This study investigates the initial consonant system of the Yongle Nanzang 永乐南藏, the second officially printed edition of the Chinese Buddhist canon of the Ming dynasty, and its relationship to the Qishazang 磧砂藏. Based on a digital and quantitative analysis of 27,832 phonetic entries—including Fanqie 反切 and Zhiyin 直音—we apply correlation coefficients (with significance tests), hierarchical clustering, and data mining methods. The results show the following: (1) In the labial series, contrasts between aspirated and unaspirated sounds are weak; Bang 幫 and Pang 滂 are occasionally confused; and Fei 非 and Fu 敷 are merged. Voiced and voiceless initials are sometimes mixed, but full devoicing has not occurred. (2) In the coronal series, Duan Zu 端組 shows high internal interchange and Zhi Zu 知組 tends to mix with Zhang Zu 章組 and Zhuang Zu 莊組. (3) In the sibilant and affricate series, Jing 精 and Zhuang 莊 are merged; Chuan 船 and Shan 禪 also merge, while Cong 從 and Xie 邪 only occasionally alternate. (4) In the velar and laryngeal series, fully voiced Qun 羣 is close to voiceless initials, while Yun 云 and Yi 以 are closely related. Nasal and lateral initials maintain independence. The findings suggest that Yongle Nanzang 永乐南藏 is not a direct reprint of the Qishazang 磧砂藏, but rather a revised edition adapted to editorial or regional considerations. This study demonstrates the value of digital phonological methods in historical phonology and the significance of the Ming–Qing Chinese Buddhist canon. Full article

This study investigates the development of the lateral fricatives and affricates, to which we jointly refer as ‘lateral obstruents’, in Nguni (S40) languages of Southern Africa. These lateral obstruents, which include /ɬ, ⁿɬ, ɮ, ⁿɮ, k͡ʟ̝̊/, are rare in the Bantu language family, and are not reconstructed for Proto-Bantu. Lateral obstruents are also rare cross-linguistically. They do occur, however, in four sub-branches of Southern Bantu: Shona, Sotho-Tswana, Nguni, and Tsonga. In this paper, we study how Southern Bantu could have acquired such a large inventory of cross-linguistically rare phonemes by investigating their development in Nguni languages, a large but closely related cluster of languages in which lateral obstruents are very frequent. We analyze published data from nine Nguni languages, including languages for which the only available descriptions are dated or of limited scope, in which case we carefully assess the data and their analysis. On the basis of this large database, we show which lateral obstruents are used in Nguni, and the vocabulary in which they occur. Applying the Comparative Method, we show that alveolar lateral obstruents can be reconstructed to Proto-Nguni, where they are the regular reflex of Proto-Bantu palatals *c and *j. The velar lateral affricate, in contrast, cannot be reconstructed to Proto-Nguni, and finds its origin in loanwords, for example, from Khoe languages, where it is used as a click replacement strategy. As a result, we conclude that both inheritance and contact played a role in the development of lateral obstruents in Nguni, likely combined in the case of alveolar lateral obstruents. In order to better understand the contact history, we evaluate existing hypothesized contact scenarios to account for the presence of lateral obstruents in Southern Bantu or Nguni. Given that alveolar lateral obstruents result from a regular sound change, contact does not seem to be as prominent in the development of lateral obstruents as has been proposed before in the literature. This study lays the groundwork for future research into lateral obstruents in Southern Bantu. Full article

While variation in the southern Peninsular Spanish affricate /tʃ/ has been considered in the context of deaffrication to [ʃ], this study examines an emergent variant [ts] in the context of sociolinguistic identity and style in political speech. Based on a corpus of public speech from Madrid and Andalusia, Spain, this study examines the phonetic and sociolinguistic characteristics of the affricate, finding variation in the quality of the frication portion of the segment through an analysis of segment duration (ms), the center of gravity (Hz), and a categorical identification of realization type. The results suggest that both linguistic variables, like phonetic environment, stress, lexical frequency, and following vowel formant height, as well as extralinguistic variables, like speaker city, gender, political affiliation, and speech context, condition use. Based on these findings, it appears that production of the alveolar affricate [ts] is an incipient sociolinguistic marker in the process of acquiring social meaning. It is particularly associated with female speech and prestige norms that transcend regional identification. This alveolar variant serves as an additional sociolinguistic resource accessible for identity development among politicians and offers insight into ongoing change in the affricate inventory of southern and northern-central Peninsular Spanish. Full article

In this paper, we discuss a child Kazakh speaker’s acquisition of English as her second language. In particular, we focus on this child’s development of the English segments |f, v, θ, ð, ɹ, ʃ, ʧ|, which are not part of the Kazakh phonological inventory of consonants. We begin with a longitudinal description of the patterns that the child displayed through her acquisition of each of these segments. The data reveal patterns that range from extremely rapid to rather slow and progressive acquisition. The data also reveal patterns that were unexpected at first, for example, the slow development of |ʧ| in syllable onsets, an affricate that occurs as a contextual allophone in syllable onsets in Kazakh. We analyze these patterns through the Phonological Interference hypothesis, which was recently extended into the Feature Redistribution and Recombination hypothesis. These models predict the transfer into the L2 of all of the relevant phonological features present within the learner’s first language and their recombination to represent segments present in the L2. We also discuss contexts where feature-based approaches to L2 acquisition fail to capture the full range of observations. In all such contexts, we show that the facts are modulated by phonetic characteristics of the speech sounds present in either the child’s L1 or her L2. Full article

Endangered language generally has low-resource characteristics, as an immaterial cultural resource that cannot be renewed. Automatic speech recognition (ASR) is an effective means to protect this language. However, for low-resource language, native speakers are few and labeled corpora are insufficient. ASR, thus, suffers deficiencies including high speaker dependence and over fitting, which greatly harms the accuracy of recognition. To tackle the deficiencies, the paper puts forward an approach of audiovisual speech recognition (AVSR) based on LSTM-Transformer. The approach introduces visual modality information including lip movements to reduce the dependence of acoustic models on speakers and the quantity of data. Specifically, the new approach, through the fusion of audio and visual information, enhances the expression of speakers’ feature space, thus achieving the speaker adaptation that is difficult in a single modality. The approach also includes experiments on speaker dependence and evaluates to what extent audiovisual fusion is dependent on speakers. Experimental results show that the CER of AVSR is 16.9% lower than those of traditional models (optimal performance scenario), and 11.8% lower than that for lip reading. The accuracy for recognizing phonemes, especially finals, improves substantially. For recognizing initials, the accuracy improves for affricates and fricatives where the lip movements are obvious and deteriorates for stops where the lip movements are not obvious. In AVSR, the generalization onto different speakers is also better than in a single modality and the CER can drop by as much as 17.2%. Therefore, AVSR is of great significance in studying the protection and preservation of endangered languages through AI. Full article

This article traces the development of voiced prepalatal obstruents /$\stackrel{⌢}{\mathrm{d}\mathrm{ʒ}}$/ and /ʒ/ in Judeo-Spanish, the language spoken by the Sephardic Jews since before their expulsion from late-15th century Spain. Using Medieval Spanish as a comparative starting point, we examine diachronic innovations in the phonological status and distribution of affricate /$\stackrel{⌢}{\mathrm{d}\mathrm{ʒ}}$/ and fricative /ʒ/ in Judeo-Spanish during the diaspora, focusing in particular on the effects of lexical borrowing from Turkish and French in territories of the former Ottoman Empire. In contemporary Sephardic communities that are in contact with non-Sephardic varieties of Mainstream Spanish, some speakers occasionally replace syllable-initial /∫/, /$\stackrel{⌢}{\mathrm{d}\mathrm{ʒ}}$/, and /ʒ/ in certain Judeo-Spanish words by a voiceless velar /x/ in efforts to accommodate the pronunciation of the corresponding Mainstream Spanish cognate form. We provide a novel analysis of Judeo-Spanish voiced prepalatal obstruents, including their diachronic and synchronic variation under language contact. The analysis combines a constraint-based approach to phonological alternations, as formalized in Optimality Theory, with a usage-based representation of the mental lexicon, as proposed in Exemplar Theory, to account for speaker- and word-specific variability. A hybrid theoretical model provides a more nuanced understanding of the relationship between lexicon and grammar in Judeo-Spanish phonology than is available in previous structuralist descriptions. Full article

Acoustic-phonetic speech training mitigates confusion between consonants and improves phoneme identification in noise. A novel training paradigm addressed two principles of perceptual learning. First, training benefits are often specific to the trained material; therefore, stimulus variability was reduced by training small sets of phonetically similar consonant–vowel–consonant syllables. Second, the training is most efficient at an optimal difficulty level; accordingly, the noise level was adapted to the participant’s competency. Fifty-two adults aged between sixty and ninety years with normal hearing or moderate hearing loss participated in five training sessions within two weeks. Training sets of phonetically similar syllables contained voiced and voiceless stop and fricative consonants, as well as voiced nasals and liquids. Listeners identified consonants at the onset or the coda syllable position by matching the syllables with their orthographic equivalent within a closed set of three alternative symbols. The noise level was adjusted in a staircase procedure. Pre–post-training benefits were quantified as increased accuracy and a decrease in the required signal-to-noise ratio (SNR) and analyzed with regard to the stimulus sets and the participant’s hearing abilities. The adaptive training was feasible for older adults with various degrees of hearing loss. Normal-hearing listeners performed with high accuracy at lower SNR after the training. Participants with hearing loss improved consonant accuracy but still required a high SNR. Phoneme identification improved for all stimulus sets. However, syllables within a set required noticeably different SNRs. Most significant gains occurred for voiced and voiceless stop and (af)fricative consonants. The training was beneficial for difficult consonants, but the easiest to identify consonants improved most prominently. The training enabled older listeners with different capabilities to train and improve at an individual ‘edge of competence’. Full article

This article describes a system for analyzing acoustic data to assist in the diagnosis and classification of children’s speech sound disorders (SSDs) using a computer. The analysis concentrated on identifying and categorizing four distinct types of Chinese SSDs. The study collected and generated a speech corpus containing 2540 stopping, backing, final consonant deletion process (FCDP), and affrication samples from 90 children aged 3–6 years with normal or pathological articulatory features. Each recording was accompanied by a detailed diagnostic annotation by two speech–language pathologists (SLPs). Classification of the speech samples was accomplished using three well-established neural network models for image classification. The feature maps were created using three sets of MFCC (Mel-frequency cepstral coefficients) parameters extracted from speech sounds and aggregated into a three-dimensional data structure as model input. We employed six techniques for data augmentation to augment the available dataset while avoiding overfitting. The experiments examine the usability of four different categories of Chinese phrases and characters. Experiments with different data subsets demonstrate the system’s ability to accurately detect the analyzed pronunciation disorders. The best multi-class classification using a single Chinese phrase achieves an accuracy of 74.4 percent. Full article

This study examines the sociophonetic variation in the L1 speech of Spanish–English bilingual speakers living in the Ciudad Juárez, Mexico–El Paso, TX border metropolis. The purpose of this research is to analyze the sociolinguistic production of /ʧ/ deaffrication in U.S. Spanish, particularly, in simultaneous and sequential bilinguals. Based on the Revised Speech Learning Model (SLM-r), it was hypothesized that L1 production of /ʧ/ deaffrication can be significantly affected by the establishment of a new L2 phonetic category /ʃ/ in bilinguals. Interviews with forty-four adult participants, including fourteen first generation simultaneous bilinguals, twelve sequential bilinguals, and eighteen monolingual Spanish speakers were acoustically and auditorily analyzed. Participants were recorded while they performed two types of tasks: a formal (reading) and two semi-informal speech production tasks. Results showed that simultaneous and sequential bilinguals had a significantly lower realization of [ʃ] than monolinguals, suggesting that L1 sociolinguistic variability is influenced by contact with English. Results also indicate the significance of the preceding segment on the realization of the variable under study in monolingual speech, with preceding /a, n, r, l/ favoring the variation and preceding /s, e, i, o, u/ disfavoring it. Comparisons of the variation in monolingual and bilingual speech show that the sociolinguistic factors (preceding segment, sex, and age) that influence the variation in monolingual controls do not influence the variation in bilingual speech. Full article

The devoicing of sibilants took place in Early Modern Spanish, a phenomenon which has been considered problematic to account for due to its occurrence context (medial intervocalic position). Traditional explanations invoked Basque influence or a structural reorganization in search for a more balanced system. However, phonetically based reasons were proposed by some scholars. This research is a preliminary attempt to support these proposals with experimental data from a comparative grammar perspective. The Catalan sibilant system, which is very similar to the Medieval Spanish one, is acoustically and perceptively studied in order to investigate the acoustic cues of voicing and to determine if devoicing is possible. Results indicate that (a) voicing relies mainly in the proportion of unvoiced frames of the segments, on its duration, and, to a lesser extent, on its intensity; (b) sibilant devoicing occurs in all voiced categories; (c) auditorily, confusion between voiced and voiceless segments can be attested for every sibilant pair, and (d) the misparsings are more common in affricate and in palatal sibilants, [d͡ʒ] being the most prone to be labelled as unvoiced. These findings prove that the historical process in Spanish could have a phonetic basis. Full article

Speech recognition consists of converting input sound into a sequence of phonemes, then finding text for the input using language models. Therefore, phoneme classification performance is a critical factor for the successful implementation of a speech recognition system. However, correctly distinguishing phonemes with similar characteristics is still a challenging problem even for state-of-the-art classification methods, and the classification errors are hard to be recovered in the subsequent language processing steps. This paper proposes a hierarchical phoneme clustering method to exploit more suitable recognition models to different phonemes. The phonemes of the TIMIT database are carefully analyzed using a confusion matrix from a baseline speech recognition model. Using automatic phoneme clustering results, a set of phoneme classification models optimized for the generated phoneme groups is constructed and integrated into a hierarchical phoneme classification method. According to the results of a number of phoneme classification experiments, the proposed hierarchical phoneme group models improved performance over the baseline by 3%, 2.1%, 6.0%, and 2.2% for fricative, affricate, stop, and nasal sounds, respectively. The average accuracy was 69.5% and 71.7% for the baseline and proposed hierarchical models, showing a 2.2% overall improvement. Full article

The present study deals with the perception (identification and discrimination) of an English phonemic contrast (/t∫/–/∫/, as in cheat and sheet) by speakers of two Mexican varieties of Spanish who are learning English as a foreign language. Unlike English, Spanish does not contrast /t∫/ and /∫/ phonemically. Most Spanish varieties have [t∫], but not [∫]. In northwestern Mexico, [∫] and [t∫] find themselves in a situation of “free” variation—perhaps conditioned, to some extent, by social factors, but not in complementary distribution. In this variety, [∫] and [t∫] are variants of the same phoneme. The present study compares the perceptual behavior of English learners from northwestern Mexico, with that of learners from central Mexico, whose native dialect includes only [t∫]. The results of a word-categorization task show that both groups of learners find cheat and sheet difficult to identify in the context of each other, but that, relative to the other learner group, the group of learners in northwestern Mexico find this task to be particularly challenging. The results of a categorical discrimination task show that both learner groups find the members of the /t∫/–/∫/ contrast difficult to discriminate. On average, accuracy is lower for the group of learners in northwestern Mexico than it is for the central Mexicans. The findings suggest that the phonetic variants found in one’s native dialect modulate the perception of nonnative sounds and, consequently, that people who speak different regional varieties of the same language may face different obstacles when learning the sounds of their second language. Full article

This study investigates native English CFL (Chinese as a Foreign Language) learners’ difficulties with Mandarin consonants at the initial stage of learning and explores the relationship between second language (L2) speech perception and production. Twenty-five native English CFL learners read the eight Mandarin consonants (j/tɕ/, q /tɕʰ/, x /ɕ/, zh /tʂ/, ch /tʂʰ/, sh /ʂ/, z /ts/, and c /tsʰ/) in sentences and identified the target sounds in a forced-choice identification task. Native Mandarin listeners identified the consonants produced by the learners and rated the quality of each sound they identified along a scale of 1 (poor) to 7 (good). The learners’ mean percentage accuracy scores ranged from 29% to 80% for perception and 25% to 88% for production. Moderate correlations between the perception and production scores were found for two of the eight target sounds. The Mandarin retroflex, palatal, and dental fricatives and affricates, though all lack counterparts in English, pose different problems to the English CFL learners. The misperceived retroflex and palatal sounds were substituted with each other in perception but mis-produced palatal sounds were substituted with each other, not with retroflex sounds. The relationship between perception and production of L2 consonants is not straightforward. The findings are discussed in terms of current speech learning models. Full article

This paper offers cross-experimental verification of a previous study that found that English speakers considered velars, palatals, glides, and high vowels to be sound-symbolic of light and jerky movements. Heavy and smooth movements, by contrast, were associated with affricates, glottals, laterals, and non-high vowels. The present study sought to evaluate these findings through a novel experiment with English speaking subjects, who were asked to choose appropriate sound-symbolically constructed nonce verbs for sentences describing light, heavy, smooth, or jerky manners of motion. Our results support many of Saji et al.’s findings and also offer original insights. We find complex interactions between a sound’s potential for sound-symbolic effects, and its position in initial or second syllables of disyllabic nonce words. Full article