The Sound of a sea rescue whistle. <br/>Whistle.wav<br/>聲道：2<br/>類型：wav<br/>Toy-Train、TrainWhistle、Train、Toy-Train-Whistle、OWI、alert、safety、rape-whistle、SafetyWhistle<br/>玩具火車、TrainWhistle、培養、玩具火車嘯叫、OWI、警報、安全、強姦哨、安全哨子<br/>資料來源：freesound ( https://freesound.org )

Pen lid popping on and off <br/>筆蓋子.wav<br/>聲道：1<br/>類型：wav<br/>clicks、marker、noise、pen、click、pop、fineliner、off、short、rhythmic、lid<br/>點擊、標記、噪聲、鋼筆、點擊、流行的、幼線筆、離、短、有板有眼、成員<br/>資料來源：freesound ( https://freesound.org )

picking up and putting down paintbrushes <br/>安排paintbrushes.wav<br/>聲道：1<br/>類型：wav<br/>arrange、paintbrush、arranging、paintbrushes、put-down、pick-up<br/>安排、畫筆、整理、油畫刷、放下、撿起<br/>資料來源：freesound ( https://freesound.org )

A short clip of a student practicing a section of Debussy's Arabesque no 1 on a Roland Digital Piano. You also hear the sound of a creaking piano bench. <br/>Debussy Arabesque沒有1個剪輯3<br/>聲道：2<br/>類型：mp3<br/>classical、music、piano、practicing<br/>古典、音樂、計劃、練<br/>資料來源：freesound ( https://freesound.org )

Stereo recording on 3 frequencies of part of W1AW's bulletin in 18 WPM CW (Morse code) which was broadcast in the evening from Newington Connecticut, made using the online remote shortwave SDR (Software defined radio) receiver of University of twente in Enschede Holland: <a href="http://websdr.ewi.utwente.nl:8901/" rel="nofollow">http://websdr.ewi.utwente.nl:8901/</a> in USB mode. Information about W1AW's operation and operating schedule are at <a href="http://www.arrl.org/w1aw-operating-schedule" rel="nofollow">http://www.arrl.org/w1aw-operating-schedule</a>The 20 meters (14046.5kHz) signal is heard on the right and is the highest tone, 40 meters (7046.7kHz) is monaural in the middle, and is the middle tone, 80 meters (3580.9kHz) is on the left and is the lowest tone. Together they make a major chord. I did that to better differentiate between the 3 and their different fading patterns and because it sounds cool. Occasional interference can be heard: some unknown digital noises on 80 meters, a carrier tuning up on 20 meters near the beginning, another one on 40 later on, and something that sounds like Amtor on 40 deedling in the background for a few seconds. Also heard are static crashes from lightning (mainly on 80 and 40) and the occasional pop on all freqs at once that I think are sdr glitches.I sinched the 3 recordings by ear by tuning all 3 instances of the receiver to Radio 4 at 198khz AM when the bulletin was finished, then reversing the files, finding a good mouth noise in all 3 to zero in on at extremely slow speed playback, which got me to the millisecond range, then testing 2 of the 3 recordings mixing with the third at different sub-millisecond start times to get it right on the nose, using first a echo frequency test (getting it as high as possible, and then testing that mixing start time by mixing the 2 in opposite channels to make sure they form a mono-sounding recording centered in the stereo field. Any time delay between frequencies should be just due to path differences and keying responsiveness in the individual transmitters in CT.<br/>Tri-Freq JO32KF - websdr_recording_start_2017-05-31T00_22_52Z_14046.5kHz-7046.7kHz-3580.9kHz W1AW Bulletin.flac<br/>聲道：2<br/>類型：flac<br/>bulletin、40-meters、receiver、static-crashes、lightning、headphones、stereo、20-meters、software-defined-receiver、hf、musical、shortwave、sdr、qsb、multi-band、morse-code、ionospheric、w1aw、amateur-radio、fading、cw、80-meters、radio、chord、multi-frequency、ham-radio、trans-atlantic<br/>公告、40米、接收器、靜態崩潰、閃電、頭戴耳機、立體聲、20米、軟件定義的接收器、有限公司、音樂、短波、先生、QSB、多頻段、摩爾斯電碼、電離層、w1aw、業餘無線電、法定、CW、80米、無線電、弦、多頻、火腿無線電、跨大西洋<br/>資料來源：freesound ( https://freesound.org )

Dawn chorus near a quiet stream in south-central Oregon.Recorder: Marantz PMD661 Microphones: MKH8020 Recordist: Tim Kahn**WARNING** this sound is in .FLAC format, so if you can't learn how to use this format, please don't download this sound, it is too dangerous.<br/>黎明合唱團由hotsprings campground.flac<br/>聲道：2<br/>類型：flac<br/>birdsong、birds、ambience、ambient、geotagged、outside、water、dawn-chorus、nature、relaxing、field-recording、phonography、sonography<br/>鳥鳴聲、鳥類、環境、周圍、地理標記、外、水、黎明合唱、性質、放鬆、現場記錄、表音文字、超聲<br/>資料來源：freesound ( https://freesound.org )

This is a recording of only a little sum of the horde of belgian football fans in Tallinn this summer, for the WC qualifications.Estonia lost, 0-2, if you're interested.Gongrats to Belgium!Recorded with Tascam DR100, June 2017, Tallinn<br/>比利時足球迷.wav<br/>聲道：2<br/>類型：wav<br/>world、belgium、noise、tallinn、celebraton、fans、football-team、football、disctrict、car、crowd、field-recording、old、championship、town<br/>世界、比利時、噪聲、塔林、celebraton、球迷、足球隊、足球、區、汽車、人群、現場記錄、舊、錦標賽、鎮<br/>資料來源：freesound ( https://freesound.org )

The sound of a bristle-brush. Use it for different things.<br/>刷牙<br/>聲道：2<br/>類型：mp3<br/>scrape、bristle-brush、brushing<br/>刮、鬃刷、刷牙<br/>資料來源：freesound ( https://freesound.org )

Techno computer sound for games or other things :)<br/>技術電腦聲音<br/>聲道：2<br/>類型：mp3<br/>computing、electric、techno<br/>計算、電動、TECHNO<br/>資料來源：freesound ( https://freesound.org )

Stream angry<br/>河聲<br/>聲道：2<br/>類型：wav<br/>river、switzerland、current、angry、stream、strong<br/>河、瑞士、當前、憤怒、流、強大<br/>資料來源：freesound ( https://freesound.org )