WordNet

a microphone that is designed to receive sound from a particular direction
the spatial relation between something and the course along which it points or moves; "he checked the direction and velocity of the wind"
a message describing how something is to be done; "he gave directions faster than she could follow them" (同)instruction
a line leading to a place or point; "he looked the other direction"; "didnt know the way home" (同)way
a general course along which something has a tendency to develop; "I couldnt follow the direction of his thoughts"; "his ideals determined the direction of his career"; "they proposed a new direction for the firm"
relating to or indicating directions in space; "a directional microphone"
relating to direction toward a (nonspatial) goal; "he tried to explain the directional trends of modern science"
device for converting sound waves into electrical energy (同)mike
the transduction of sound waves into electrical waves (by a microphone)

PrepTutorEJDIC

〈C〉〈U〉『方向』,方角;方面 / 〈C〉(思想・行動の)『傾向』,(事態が向かう)方向,(情報の)線 / 〈U〉『監督』,管理;指揮,指導 / 〈C〉《通例複数形で》(…についての)『指示』,指図,命令《+『for』(『about』)+『名』/+『asto』『名』(『wh-句』)》 / 〈U〉(音楽・演劇・映画などの)『指揮』,演出,監督
方向上の,方向を示す / (無線の電波が)指向性の
『マイクロフォン』,拡声器

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The effect of hearing aid microphone mode on performance in an auditory orienting task.

Brimijoin WO1, Whitmer WM, McShefferty D, Akeroyd MA.
Ear and hearing.Ear Hear.2014 Sep-Oct;35(5):e204-12. doi: 10.1097/AUD.0000000000000053.
OBJECTIVES: Although directional microphones on a hearing aid provide a signal-to-noise ratio benefit in a noisy background, the amount of benefit is dependent on how close the signal of interest is to the front of the user. It is assumed that when the signal of interest is off-axis, users can reori
PMID 25148290

Two-microphone spatial filtering provides speech reception benefits for cochlear implant users in difficult acoustic environments.

Goldsworthy RL1, Delhorne LA2, Desloge JG2, Braida LD2.
The Journal of the Acoustical Society of America.J Acoust Soc Am.2014 Aug;136(2):867-76. doi: 10.1121/1.4887453.
This article introduces and provides an assessment of a spatial-filtering algorithm based on two closely-spaced (∼1 cm) microphones in a behind-the-ear shell. The evaluated spatial-filtering algorithm used fast (∼10 ms) temporal-spectral analysis to determine the location of incoming sounds
PMID 25096120

Advantages of binaural amplification to acceptable noise level of directional hearing aid users.

Kim JH1, Lee JH2, Lee HK3.
Clinical and experimental otorhinolaryngology.Clin Exp Otorhinolaryngol.2014 Jun;7(2):94-101. doi: 10.3342/ceo.2014.7.2.94. Epub 2014 May 21.
OBJECTIVES: The goal of the present study was to examine whether Acceptable Noise Levels (ANLs) would be lower (greater acceptance of noise) in binaural listening than in monaural listening condition and also whether meaningfulness of background speech noise would affect ANLs for directional microph
PMID 24917904

堀貴明,荒木章子,大塚和弘,中谷智広,中村篤,大和淳司
電子情報通信学会技術研究報告. SP, 音声 112(141), 13-18, 2012-07-12
本稿では,我々が取り組んでいる「会話シーン分析」の研究について紹介する.本研究では,複数の人が自由な会話を行う実環境下で「いつ誰が誰に何をどのように話したか」を自動的に認識する技術を構築し,更には結果の統合・分析・可視化・再利用を通して,人の会話を支援する技術の研究を進めている.これまで我々は,会話中の様々な状況/会話内容をリアルタイムで認識するために,会話参加者から発せられる音声や画像のマルチモ …
NAID 110009626204

亀井昌代,佐藤宏昭,小田島葉子
耳鼻咽喉科臨床 105(7), 617-622, 2012-07-01
… Hearing aids with the directional microphone and noise reduction system showed a higher speech discrimination score under noise than the others. …
NAID 10030773531