The collection of spoken language resources in car environments
Hartmut R. Pfitzinger · 1998
Over the last two years, we have recorded 400 speakers in five different mid-range and top-range cars using single-channel, fourchannel, or seven-channel recording equipment (see Table 1). This paper documents the acquired knowledge of microphone selection, positioning and fixation, of preamplifying and recording devices, of shielding, grounding and power supply, and of data processing. On the basis of our experience, we would like to make recommendations for the collection of speech data in the car environment, in order to help others avoid the mistakes we made. Furthermore, we would like to define a standard for this specific recording situation so that car speech data recorded by different institutions in various places can nevertheless be uniform. As a result, the exchange of such databases will be considerably more interesting for such institutions in the future. 1 The need for car speech databases For speech recognition and speech synthesis, the automotive market is one of the g...