In-car communication (ICC) systems supporting speech communication in noise by reproducing amplified speech from the car cabin in the car cabin ask for low-delay acoustic echo cancellation (AEC). In this paper we propose a delay-flexible DFTbased stereo AEC capable of cancelling also the echoes stemming from the audio player or FM radio. For the price of a somewhat higher complexity we are able...

A delay in speech development may be a symptom of many disorders, including mental retardation, hearing loss, an expressive language disorder, psychosocial deprivation, autism, elective mutism, receptive aphasia and cerebral palsy. Speech delay may be secondary to maturation delay or bilingualism. Being familiar with the factors to look for when taking the history and performing the physical ex...

A new model for perceptual evaluation of speech quality (PESQ) was recently standardised by the ITU-T as recommendation P.862. Unlike previous codec assessment models, such as PSQM and MNB (ITU-T P.861), PESQ is able to predict subjective quality with good correlation in a very wide range of conditions, that may include coding distortions, errors, noise, filtering, delay and variable delay. Thi...

In this contribution we discuss methods to reduce the algorithmic delay of joint speech enhancement and low bit rate speech coding algorithms. We introduce a novel overlap/add scheme which can reduce the overall delay of the joint system for some speech coders considerably. The new scheme takes advantage of the fact that some low bit rate coders store a signi cant amount of look-ahead samples i...

A group delay-based excitation source analysis and design method is introduced for extension of TANDEM-STRAIGHT, a speech analysis, modification and synthesis system. This introduction makes all components of the system be based on interference-free representations. They are power spectrum, instantaneous frequency and group delay representations. This unification has potential to solve the majo...

Close shadowing experiments involving natural and synthetic stimuli are described. Preliminary results show that speakers are able to follow natural stimuli with an average delay of 70 ms whereas this delay typically exceeds 100 ms for stimuli produced by text-to-speech systems. A complementary experiment shows that this contrast is mainly due to the inappropriate or impoverished prosody genera...

This study examines the relationship between speech perception and speech production in children with speech delay (SD). Sixtythree children who participated in the Nemours Genetics of Speech Delay Project were categorized as either typically developing (TD) or SD. The children with SD were subgrouped by their articulation errors on the /s/ and // sounds tested in a perception experiment. An i...

Purpose The purpose of this 2nd article in this supplement is to report validity support findings for the Pause Marker (PM), a proposed single-sign diagnostic marker of childhood apraxia of speech (CAS). Method PM scores and additional perceptual and acoustic measures were obtained from 296 participants in cohorts with idiopathic and neurogenetic CAS, adult-onset apraxia of speech and primary...

The FOXP protein family (FOXP1-4) is a group of transcription factors that play important roles in embryological, immunological, hematological, and speech and language development. Here, we report FOXP1 de novo mutation and severe speech delay in an individual belonging to a non-Caucasian population.