A Compact Acoustic Recorder
This paper discusses the design and operation of a portable compact acoustic recorder. Designed to be used in arctic conditions for applications that require portable equipment, the device is configured to fit into a lightweight briefcase. It will operate for eight hours at -40 F with heat provided...
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ftdtic:ADA213581 2023-05-15T14:53:34+02:00 A Compact Acoustic Recorder Stein, Ronald WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB 1989-09-21 text/html http://www.dtic.mil/docs/citations/ADA213581 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA213581 en eng http://www.dtic.mil/docs/citations/ADA213581 Approved for public release; distribution is unlimited. DTIC AND NTIS Recording and Playback Devices Acoustics *UNDERWATER ACOUSTICS *ACOUSTIC RECORDING SYSTEMS *TAPE RECORDERS *UNDERWATER SOUND SIGNALS *ACOUSTIC SIGNALS ELECTRONIC EQUIPMENT ALTERNATING CURRENT COSTS CLIMATE ELECTRIC POWER RECORDING SYSTEMS CALIBRATION HYDROPHONES SUPPLIES ASSEMBLY BOATS AMPLITUDE DISTORTION CONSUMERS BOTTLES ARCTIC REGIONS HOT WATER TAPE RECORDING INTERFACES TOOLS ELECTRONICS AUDIO AMPLIFIERS FUNCTIONS PORTABLE EQUIPMENT PE62435N WUDN496433 Text 1989 ftdtic 2016-02-23T04:47:27Z This paper discusses the design and operation of a portable compact acoustic recorder. Designed to be used in arctic conditions for applications that require portable equipment, the device is configured to fit into a lightweight briefcase. It will operate for eight hours at -40 F with heat provided by a hot water bottle. It has proven to be an effective scientific tool in the measurement of underwater acoustic signals in arctic experiments. It has also been used successfully in warmer climates, e.g., in recording acoustic signals from small boats with no AC power. The acoustic recorder's cost is moderate since it is based on a Sony Walkman Professional (WM-D6C) tape recorder playback unit. A speaker and battery assembly and a hydrophone interface electronic assembly complete the system electronics. The interface assembly supplies a number of functions, including a calibration tone generator, an audio amplifier, and a hydrophone interface. Calibrated acoustic recordings can be made by comparing the calibration tone amplitude with the acoustic signal amplitude. The distortion of the recording is minimized by using a high quality, consumer tape recorder. Text Arctic Defense Technical Information Center: DTIC Technical Reports database Arctic |
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Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
language |
English |
topic |
Recording and Playback Devices Acoustics *UNDERWATER ACOUSTICS *ACOUSTIC RECORDING SYSTEMS *TAPE RECORDERS *UNDERWATER SOUND SIGNALS *ACOUSTIC SIGNALS ELECTRONIC EQUIPMENT ALTERNATING CURRENT COSTS CLIMATE ELECTRIC POWER RECORDING SYSTEMS CALIBRATION HYDROPHONES SUPPLIES ASSEMBLY BOATS AMPLITUDE DISTORTION CONSUMERS BOTTLES ARCTIC REGIONS HOT WATER TAPE RECORDING INTERFACES TOOLS ELECTRONICS AUDIO AMPLIFIERS FUNCTIONS PORTABLE EQUIPMENT PE62435N WUDN496433 |
spellingShingle |
Recording and Playback Devices Acoustics *UNDERWATER ACOUSTICS *ACOUSTIC RECORDING SYSTEMS *TAPE RECORDERS *UNDERWATER SOUND SIGNALS *ACOUSTIC SIGNALS ELECTRONIC EQUIPMENT ALTERNATING CURRENT COSTS CLIMATE ELECTRIC POWER RECORDING SYSTEMS CALIBRATION HYDROPHONES SUPPLIES ASSEMBLY BOATS AMPLITUDE DISTORTION CONSUMERS BOTTLES ARCTIC REGIONS HOT WATER TAPE RECORDING INTERFACES TOOLS ELECTRONICS AUDIO AMPLIFIERS FUNCTIONS PORTABLE EQUIPMENT PE62435N WUDN496433 Stein, Ronald A Compact Acoustic Recorder |
topic_facet |
Recording and Playback Devices Acoustics *UNDERWATER ACOUSTICS *ACOUSTIC RECORDING SYSTEMS *TAPE RECORDERS *UNDERWATER SOUND SIGNALS *ACOUSTIC SIGNALS ELECTRONIC EQUIPMENT ALTERNATING CURRENT COSTS CLIMATE ELECTRIC POWER RECORDING SYSTEMS CALIBRATION HYDROPHONES SUPPLIES ASSEMBLY BOATS AMPLITUDE DISTORTION CONSUMERS BOTTLES ARCTIC REGIONS HOT WATER TAPE RECORDING INTERFACES TOOLS ELECTRONICS AUDIO AMPLIFIERS FUNCTIONS PORTABLE EQUIPMENT PE62435N WUDN496433 |
description |
This paper discusses the design and operation of a portable compact acoustic recorder. Designed to be used in arctic conditions for applications that require portable equipment, the device is configured to fit into a lightweight briefcase. It will operate for eight hours at -40 F with heat provided by a hot water bottle. It has proven to be an effective scientific tool in the measurement of underwater acoustic signals in arctic experiments. It has also been used successfully in warmer climates, e.g., in recording acoustic signals from small boats with no AC power. The acoustic recorder's cost is moderate since it is based on a Sony Walkman Professional (WM-D6C) tape recorder playback unit. A speaker and battery assembly and a hydrophone interface electronic assembly complete the system electronics. The interface assembly supplies a number of functions, including a calibration tone generator, an audio amplifier, and a hydrophone interface. Calibrated acoustic recordings can be made by comparing the calibration tone amplitude with the acoustic signal amplitude. The distortion of the recording is minimized by using a high quality, consumer tape recorder. |
author2 |
WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB |
format |
Text |
author |
Stein, Ronald |
author_facet |
Stein, Ronald |
author_sort |
Stein, Ronald |
title |
A Compact Acoustic Recorder |
title_short |
A Compact Acoustic Recorder |
title_full |
A Compact Acoustic Recorder |
title_fullStr |
A Compact Acoustic Recorder |
title_full_unstemmed |
A Compact Acoustic Recorder |
title_sort |
compact acoustic recorder |
publishDate |
1989 |
url |
http://www.dtic.mil/docs/citations/ADA213581 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA213581 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA213581 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766325170389123072 |