A Spectrally and Perceptually Weighted Predictive Coding      Technique for Mobile Voice Communications Applications
{'Code': '15030000', 'Directorate': {'Abbreviation': 'TIP', 'LongName': 'Dir for Tech, Innovation, & Partnerships'}, 'Division': {'Abbreviation': 'TI', 'LongName': 'Translational Impacts'}}
{'SignBlockName': 'Ritchie B. Coryell', 'PO_EMAI': None, 'PO_PHON': None}
The principal investigators propose a novel digital speech              coding and compression technique for mobile voice communications                applications to generate high quality and natural sounding speech               over a wide range of bit rates.  The technique uses quadrature                  mirror filters to partition speech into several subbands.  Each                 band is then individually coded using Adaptive Predictive Coding                with Multi-Pulse-Excitation.                                                            Their preliminary results from Phase I indicate that the                technique provides near-toll quality speech at bit rates of 12.0                kbits/s and above, communication quality at 8.0 kbits/s, and                    synthetic quality at 2.4 kbits/s.  The technique is robust to bit               errors up to an error rate of 5 x 10E-03.                                               Phase II will extend the above findings to a real-time                  implementation using digital signal processors.  During this                    phase they will also investigate economical implementations for                 commercialization.
{'FirstName': 'Vaikunth', 'LastName': 'Gupta', 'PI_MID_INIT': 'N', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Vaikunth N Gupta', 'EmailAddress': 'vgupta@PanumTelecom.com', 'PI_PHON': '3012996271', 'NSF_ID': '000343991', 'StartDate': '02/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Compression Telecommunications Corporation', 'CityName': 'Germantown', 'ZipCode': '208741202', 'PhoneNumber': '3014289405', 'StreetAddress': '19540 Amaranth Dr', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Maryland', 'StateCode': 'MD', 'CONGRESSDISTRICT': '06', 'CONGRESS_DISTRICT_ORG': 'MD06', 'ORG_UEI_NUM': None, 'ORG_LGL_BUS_NAME': None, 'ORG_PRNT_UEI_NUM': None}
{'Name': None, 'CityName': None, 'StateCode': None, 'ZipCode': None, 'StreetAddress': None, 'CountryCode': None, 'CountryName': None, 'StateName': None, 'CountryFlag': None, 'CONGRESSDISTRICT': None, 'CONGRESS_DISTRICT_PERF': '""'}
{'Code': '5373', 'Text': 'SBIR Phase II'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8700500.xml'}