USB telephony interface device for speech recognition applications

[摘要] Automatic speech recognition (ASR) systems are an attractive means for companies to deliver value addedservices with which to improve customer satisfaction. Such ASR systems require a telephony interface toconnect the speech recognition application to the telephone system. Commercially available telephonyinterfaces are usually operating system specific, and therefore hardware device driver issues complicate thedevelopment of software applications for different platforms that require telephony access. The drivers andapplication programming interface (API) for telephony interfaces are often available only for the MicrosoftWindows operating systems. This poses a problem, as many of the software tools used for speech recognitionresearch and development operate only on Linux-based computers. These interfaces are also typically inPCI/ISA card format, which hinders physical portability of the device to another computer. A simple, cheaperand easier to use USB telephony interface device, offering cross-platform portability, was developed andpresented, together with the necessary API.

[发布机构] Stellenbosch University