CONTRACT RD-94 TASK ORDER NO. 2

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03300A001900110028-8
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 22, 2016
• Document Release Date: May 3, 2011
• Sequence Number: 28
• Publication Date: August 10, 1956
• Content Type: LETTER

Sanitized Copy Approved for Release 2011/05/03: CIA-RDP78-0330OA001900110028-8
August 10, 1956
Contract RD-94
Task Order No. 2
In accordance with Article 2 of the basic
contract, there are forwarded herewith two (2) copies
of the Monthly Progress Report for July, 1956 on
Task Order No. 2 of RD?94. The report is dated
August 1, 1956. This report U1~CLASSIFIisD. An
additional copy is being held by the
project engineer for the use ? your personnel while
at this location.
Since work on this contract commenced
July 1, 1956, no expenditure figures are available
to report to you with this letter. However, ccsrsenc-
iag with the sailing of the August, 1956 Progress
Reports we will report expenditures on a monthly
basis as has been the case under Task Order No. 1.
Very truly yours,.
TRR:val
f-1!4608
Assistant Manager
Government Contract Administration
pnnirinrKIT[
Sanitized Copy Approved for Release 2011/05/03: CIA-RDP78-0330OA001900110028-8
25X1
 Sanitized Copy Approved for Release 2011/05/03: CIA-RDP78-0330OA001900110028-8
CONFIDENTIAL
MONTRLY PROGRE$8 REPORT
July 1"6
Task Ordir No. 2
Contract No. RD-94
ML O **OT8! ?vox cog
The sbJeet Of this project is to develop a noise re.
dustlew circuit suitable for use in seperatiag speech Sae
telligss>e froze a si4ns1 eastalai* spoeck and awls. The
pr'apeeed setter consists of passist the sisal threugb
soul fregwney selostivs channels. sash abed emsaine
a sasliasar oloasaR whisk disarlaiasto. sAaiast the noise
when the spook istorwati ea in the ohamel is groator than
the .noise.
DuriSR July a preliminary study hue been initiated to
Mtsrwiae the seat suitable naalber of .bssaels required,
and the ..part of these shsasn.1s in the audio region. From
this study it is apparsi that. the band spacing can be based
epee several Tutors, such as, articulatias index, the shape
of No staking incise speetsn serve, the critical bans widths,
or a e400taatise .t these factors.
In order to ovelsate various channel plasomsnts and
band widths, a fur charnel noise rodwtion circuit has been
dasti d. ftw ehatncls, properly spaced should be sufficient
to - Pe ovido speoob lafi rmation far a Baited anmbor of speech
sewWW as. ?paka s by sac individual. Varisas filter a m61na-
tieas will be tried with this eirsuit in order to ascertain
main bead widths and channel cone items. The roar channel
circuit is now under eonstrustioa in the model shop.
RAR:jal
August It 1956
CONFIDENTIAL
Sanitized Copy Approved for Release 2011/05/03: CIA-RDP78-0330OA001900110028-8