A PCM/VCR speech database exchange format

The use of PCM/VCR technology is described for use as a storage and exchange medium for speech databases. In order to provide a limited amount of digital data, use is made of a recorded modem signal for ASCII character string headers associated with the speech tokens. This format can be used to store field recordings of speech material for subsequent digitization, for transfer of speech database material between laboratories and in implementing automated testing of speech recognition devices.