CSR '95 Hub-3 Development Test Data
	       Read CSRNAB Multi-Microphone Recordings

	       NIST Speech Discs 26-3.1, 26-4.1, 26-5.1

                             May, 1996

This corpus of read speech was collected by NIST to serve as
development test data for the 1995 CSR Hub-3 tests.  The data was
collected using using the NIST-developed Multi-Microphone (MUM) Speech Data
Collection System.  The MUM system permits the the simultaneous
collection of speech from eight microphones.  These discs (26-3.1 -
26-5.1) contain multi-microphone speech for 20 subjects reading the 40
ARPA/Dragon adaptation sentences and unique sets of nominally 15 NAB
1994 H1 Development Test sentences.  Background noise samples were
also recorded before and after each data collection session.  The data
were collected in two noise environments (locations) with 10 of the
subjects in each location.

NOTE: If you intend to implement the 1995 ARPA CSR Hub-3 Tests,
you should use this data in accordance with the Hub-3 test
and scoring specifications on NIST Speech Disc 26-7.1 which
contains the corresponding evaluation test material.

The 20 subjects are apportioned across the 3 discs by recording
location as follows:

   26-3.1 - Location 1 Recordings: 15 NAB sentences & 40 adaptation sentences 
            Subjects: 703-705, 707-70a, 70c, 70f, 70g

   26-4.1 - Location 2 Recordings; 15 NAB sentences: 
            Subjects: 70k, 70m-70o, 70q-70s, 70u-70w

   26-5.1 - Location 2 Recordings; 40 adaptation sentences
            Subjects: 70k, 70m-70o, 70q-70s, 70u-70w

The top-level directory of this disc contains the following files
and subdirectories:

    discinfo.txt - listing of directories and files on this disc
       csr95/h3/ - directory containing Hub-3 corpora

A more detailed description of the data collection setup and data is
located in "csr95/h3/doc/h3_data.doc" A detailed description of the
MUM data collection system is located in "csr95/h3/doc/mum.doc".  The
1995 CSR Hub-3 test specifications are located in
"csr95/h3/doc/et95h3sp.doc".

For your convenience, the documentation under "csr95/h3/doc" has been
copied to all three discs.

Please see the "readme.doc" file under the "csr95/h3" directory to get
started with the data.