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All Free Audio, Sound & Music Downloads
Free downloadable audio tracks, music, MP3 recordings, music loops, jam tracks, backing tracks, midi files, soundtracks, sound effects and more.  Audio Resources Home -  Free downloadable audio tracks, music, MP3 recordings, music loops, jam tracks, backing tracks, midi files, soundtracks, sound effects and more.

Home > Free Multimedia Resources > Free Audio Resources Home (Audio Resources Central)

 Animated & Static Title Screen Backgrounds for Windows Movie Maker - Click here Audio Resources Central
As you would expect, Audio Resources Central is home base for the free music and audio related downloads, files, information and other resources available at Nifter.com. It's a popular area that is continually growing and there is no end to the wealth of music, songs and other downloadable audio rescources that can and will be found here.

The frustration of trying to find music and/or audio downloads that are truly free is a huge annoyance for many people. Sometimes even simple, public domain song downloads are near impossible to get without paying a fee, downloading risky software or some other hassle. We hope to end much of that for you with totally free downloadable audio tracks, music, MP3 recordings, music loops, jam tracks, backing tracks, midi files, soundtracks, sound effects and as many other resources in this category that we can provide as possible.

The index below details the free downloadable audio resources that are available on site now. If what you're looking for isn't here now, it probably will be soon. If you're having a really difficult time finding something in particular you can always contact us and we'll see if there's any way we can help you out.

 Sound Effects Free Downloads - Audio Clips Download Free Free Sound Effects & Audio Clips

 Free Sound Effects and Audio Clips Computer Sound Effects & Audio Clips Home
 Free Animals Sound Effects and Audio Clips Animals, Birds, Oceon Mammals and Other Creatures
 Free Blips, Bangs, Beeps Sound Effects and Audio Clips Blips, Bangs and Beeps
 Free Telephone Answering Machine Recordings, Sound Effects and Audio Clips Answering Machine Messages & Email Alerts
 Free Breaking, Glass, Bottles Sound Effects and Audio Clips Bottles, Glass & Breaking Sounds
 Free Weather Sound Effects and Audio Clips Weather Sound Effects
 Free Sound Effects and Audio Clips Cartoon Sounds, Noises, Characters & Effects
      South Park Characters Sounds, Speech, Talking, Songs Audio Clips South Park Characters
      Homer Simpson Sound Recordings and Audio Effects Homer Simpson
      Songs from The Simpsons Television Show Songs from The Simpsons Television Show
      Sound Effects from the Looney Tunes Characters Looney Tunes Characters Home
           Looney Tunes Bugs Bunny Sound Effects and Audio Clips Bugs Bunny
           Looney Tunes Daffy Duck Sound Clips Daffy Duck
           Looney Tunes Elmer Fudd Sound Effects and Audio Recordings Elmer Fudd
           Looney Tunes Porky Pig Audio Sounds Porky Pig
           Looney Tunes Road Runner Sounds Effects Clips Road Runner
           Looney Tunes Tweety Bird Sounds Effects Clips Tweety Bird
 Free Television Theme Songs - TV Themes Music Downloads Television Theme Songs

 Download Free Computer Wallpapers for Your Desktop Television Theme Songs Home

TV Theme Songs Alphabetically
A    B    C    D    E    F    G    H    I-J
K-L    M    N    O-P    Q-R    S    T    U-V-W-X-Y

TV Theme Songs Index
Compete list of television theme songs by name

 Miscellaneous Audio Downloads and Hard to Find Music and Songs Miscellaneous Audio Downloads - Hard to Find Music, Songs, MP3

 Happy Birthday Music Instrumentals - Happy Birthday Music Downloads - Happy Birthday MP3 Birthday Music Instrumentals (Birthday Songs without Vocals - Happy Birthday WAV / MP3 / MIDI)
 Birthday Songs with Vocals Downloads - Happy Birthday to You - Happy Birthday MP3 Birthday Songs with Vocals (Happy Birthday to You - Birthday Music MP3 / WAV)

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The iFacts Collection - Interesting Page Related Content
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iFact #45 - About Sound Waves - Interesting Information and Facts About Sound Waves

    Interesting Facts About Sound Waves

  • Around 350 B.C., Aristotle observed that a vibrating string was actually striking the air. From this, Aristotle hypothesized that air was needed as a medium through which sound could be conducted. He further reasoned that sound would not be conducted in a vacuum.
  • In the sixth century B.C., Pythagoras of Samos observed a musician plucking a stringed instrument and noticed that the amplitude of a vibration (deduced by the width of the blurred area of motion) related to the perceived loudness of the sound. He also saw that the sound stopped when the vibration stopped and that the shorter strings vibrated more rapidly, which produced a higher-pitched sound.
  • Based on Pythagoras' findings, first-century Roman engineer/architect Marcus Vitruvius Pollio suggested that air not only moved when struck, it vibrated in response to the vibrations of the string. He maintained that it was actually these air vibrations that we heard and perceived as sound.
  • The Roman philosopher Anicius Manlius Severinus Boethius compared the conduction of sound through the air to the waves produced by dropping a pebble into calm water. Today we know that sound waves and water waves represent two distinct types of wave motion (longitudinal and transverse, respectively), but the realization that sound moves as a wave at all was an important step in the study of sound.
  • In 1842, Christian Doppler first identified and quantified the change in pitch that occurs when a source of sound moves toward or away form a stationary observer or vice versa. This is now known as the Doppler Effect.
  • Waves are disturbances in water, air, or another substance, or in a field of force.
  • Sound originates at a point and travels equally strongly in all directions. Sound waves are spherical and three-dimensional.
  • When a sound wave reaches a person's body, it reflects off of the person's head, shoulders, and the curved surface of the outer ear. When reflecting waves bounce more than once or interfere with other waves before reaching the tympanic membrane, it causes changes in the volume or quality. Such occurrences are called head-related transfer functions (HRTFs).
  • Unless you are directly on the axis of a sound source, there is a difference in level between the sound your right ear hears and the sound your left ear hears, called interaural level difference (ILD). The difference between how the sound waves interact with your head and body, and the delay it causes, is called interaural time difference (ITD). The reduction in level is caused by the natural dissipation of the sound wave and by your head absorbing and reflecting a little bit of the sound.
  • Objects that tend to resonate at a single frequency, such as a flute, are often said to produce a pure tone. Other objects, such as a tuba, vibrate and produce more complex waves with overtones that have whole number mathematical relationships between them; these are said to produce a rich sound.
  • Wave interference is the phenomenon that occurs when two waves meet while traveling along the same medium.
  • If two crests that have the same shape meet up with each other while traveling in opposite directions, the medium air will take on the shape of a crest with twice the amplitude of the two interfering crests. This is known as constructive interference.
  • If a crest and a trough with the same shape meet up while traveling in opposite directions, the two pulses will cancel each other's effect on the air displacement and the air will assume an equalized position. This is known as destructive interference.
  • Sound is a pressure wave that consists of compressions and rarefactions.
  • The destructive interference of sound waves can also be used to reduce noise, such as in industrial headphones. Such headphones capture sound from the --environment and use computer technology to produce a second sound wave. The combination of the two sound waves within the headset results in destructive interference and, thus, reduces the sound level.

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