An open-source Mandarin speech corpus called AISHELL-1 is released. It is by far the largest corpus which is suitable for conducting the speech recognition research and building speech recognition systems for Mandarin. The recording procedure, including audio capturing devices and environments are presented in details. The preparation of the related resources, including transcriptions and lexic...

Multimedia has become an inevitable part of our daily lives. It finds application in various areas, from education to entertainment. The growth of internet and mobile communication has also increased the use of multimedia applications. Digital audio/video applications for network, wireless-enabled and mobile devices pose a range of constraints such as low channel bandwidth, limited storage capa...

Continuous audio-visual surveillance is utilized to ensure the physical safety of critical infrastructures such as airports, nuclear power plants and national laboratories. In order to do so, traditional surveillance systems place cameras, microphones and other sensory input devices in appropriate locations [Sch99]. These facilities are arranged in a hierarchy of physical zones reflecting the s...

For the digital watermarking patchwork algorithm originally given by Bender et al., this paper proposes two improvements applicable to audio watermarking. First, the watermark embedding strength is psychoacoustically adapted, using the Bark frequency scale. Second, whereas previous approaches leave the samples that do not correspond to the data untouched, in this paper, these are modified to re...

Several new fixed point results for self maps in extension type spaces are presented in this paper. In particular we discuss compact absorbing contractions. RESUMEN Son presentados en este art́ıculo varios resultados nuevos de punto fijo para autoaplicaciones en espacios de tipo extensión. En particular discutimos contracciones compactas absorbentes.

Eight major consumer electronics manufacturers have come up with an open standard enabling home entertainment devices to communicate intelligently with each other. The HAVi (Home Audio Video Interoperability) standard promises to bring true platform independent interoperability to consumer devices using high bandwidth IEEE 1394 (FireWire) as the connecting medium. This paper studies the HAVi st...

In the past, adding speech recording and playback capability to a product meant using a digital signal processor or a specialized audio chip. Now, using a simplified Adaptive Differential Pulse Code Modulation (ADPCM) algorithm, these audio capabilities can be added to any PICmicro device. This application note will cover the ADPCM compression and decompression algorithms, performance compariso...

Oral presentations: 20 minutes each, 15-18 minutes presentation + 2-5 minutes Q&A. Poster Presentations: The size of the poster-boards is 0.9m (width) by 1.5m (height). Please let us know in case you require any special equipment for your poster presentations (earphones will be available in the "Audio Day"). Spotlight presentations: These are 2-minutes "promos" for some of the papers to be pres...

The ETNA project explored the audio and video quality requirements for a range of networked realtime multimedia applications. When the project began, there was little applicable knowledge in the human factors community as to the specific audio-visual requirements that different sorts of communicative tasks might demand. The ETNA project showed that these differ according to specific task and us...