anechoic

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anechoic

 [an-ĕ-ko´ik]
without echoes, such as a room used for hearing tests.

an·e·cho·ic

(an'ĕ-kō'ik),
The property of being echo-free or appearing without echoes on a sonographic image; a cyst filled with clear fluid appears anechoic. See: transonic.
Synonym(s): echo-free
[G. an- priv. + echo + ic]

anechoic

/an·echo·ic/ (an-ĕ-ko´ik)
1. without echoes; said of a chamber for measuring the effects of sound.

anechoic

[an′ekō′ik]
(in ultrasonography) free of echoes.

an·e·cho·ic

(an'ĕ-kō'ik)
The property of appearing echo free on a sonographic image; a clear cyst appears anechoic.
[G. an- priv. + echo + ic]

anechoic

in ultrasonography, an absence of internal echoes.
References in periodicals archive ?
When calls are made over the PSTN, network-installed echo cancellers do the job of ensuring echo-free conversations.
These include PC sound systems that integrate the functionality of audio speakers and echo-free speakerphones into a single "all-in-one" peripheral, speakers, LCD multimedia monitors, iPod/MP3 docking systems, notebook docking stations, and voice-over-IP peripherals such as speakerphones.
SoundPoint's neodymium speaker delivers distortion-free sound, and an exceptionally sensitive hypercardioid microphone allows for echo-free voice pick-up.
These include emerging PC sound systems that integrate the functionality of audio speakers and echo-free speakerphones into a single "all-in-one" peripheral, speakers, LCD multimedia monitors, iPod/MP3 docking systems, notebook docking stations, and voice-over-IP (VoIP) peripherals such as speakerphones.
their digital subscribers enjoy echo-free service on both mobile-to
Called the Parrot CONFERENCE[TM], the speakerphone features Parrot's proprietary advanced digital signal processing technology with full duplexing for clear, echo-free conversations in both small and large rooms.
IDEC is a perfect example of the kind of state-of-the-art technology that has helped PictureTel become the world leader in videoconferencing and can help other companies develop a wide range of communications products -- such as speakerphones or personal computer/telephone units - - where echo-free sound quality is vital," said David Snow, PictureTel's director of technology licensing.
Polycom's SoundStation, priced at $1,195, overcomes the poor audio quality of previous speakersphones by allowing clear, echo-free transmission in two directions simultaneously.
The Logitech(R) QuickCall(TM) USB Speakerphone delivers crystal-clear and echo-free PC calls.
The QuickCam for Notebooks Pro also features Logitech(R) RightSound(TM) Technology with acoustic echo-cancellation software, enabling people to make echo-free video calls without using a headset.