Among the features that contribute to producing the sound of the recorder, the size of the tone holes, their location, and the internal shape of the bore the mensur are the three most important factors.
These three are closely related to producing the pitch of the sound made by the recorder. If you look closely at a recorder, you will see that the size of the holes varies. The locations of the holes and their alignment with the interior shape of the bore have been developed through over years of trial and error, with the aim of producing tones at different pitch intervals.
To this end, a variety of approaches have been used. For example, for the double holes, where there are two open holes in one place, the combined surface area of both holes is the same as the surface area of a single hole for a single tone. Also, when holding in the instrument, if only the hole on the right is covered a note at a semitone interval is produced, but if both of the holes were made to be exactly the same size, the interval produced would not be a semitone.
The lower two double holes, covered by the little finger and ring finger of the right hand, also may appear at first glance to be the same size, but if you look closely you will see that they are actually different sizes. The tone holes of a recorder tend to be thought of as being positioned at regular intervals, but that is not actually the case.
MP3 refers to a form of lossy data compression. This means that not all of the sound is recorded. Parts of the sound outside those necessary for most listeners is discarded, hence only a "sample" of the sound is made. The rest of the information containing the sounds is compressed. MP3 files are, as a result, relatively small, but have a quality that is acceptable for most circumstances. See Wikipedia:MP3. See also Wikipedia:Sound Quality.
The price difference compared to the Olympus VNPC is reflected in the fact that the Olympus device supports an additional file format, WMA, and has a higher-quality frequency response. The difference means that the lower-priced Sony will do a very adequate job of recording the spoken word, but the Olympus will do a better job with music. The more expensive the device the more audio file formats it may support.
Some of the other formats are:. The most basic recorder has a record button, a pause function and an off button. Most of us need a little bit more to make using a digital recorder successful in capturing audio. One consideration, as I mentioned above, is the amount of internal memory and whether or not the device can use external flash memory cards, the same kinds used in cameras. Both the Sony and Olympus models cited above have 2 GBs of internal memory and the Sony comes with a slot for adding memory with a flash memory card.
As with most electronic devices, the features of the more-expensive models migrate into the less-expensive models so that over time, the less-expensive models acquire the features of the more-expensive models. At the same time, the more-expensive models add new features. Most of the voice recorders sold today come with some kind of built-in noise filtering software. People either buy tapes pre-recorded with material, or make their own tapes from CDs.
In the video realm, video tape is used widely both in the broadcast industry and at home to store material for later viewing on VCRs. In the computer realm, magnetic recording is used on floppy disks , hard disks and magnetic tape as the main method for data storage. The Tape " ". You can record anything you want instantly and the tape will remember what you recorded for playback at any time.
You can erase the tape and record something else on it any time you like. The original format was not tape at all, but actually was a thin steel wire. The wire recorder was invented in by Valdemar Poulsen. German engineers perfected the first tape recorders using oxide tapes in the s. Tapes originally appeared in a reel-to-reel format. See this page for a picture of an early reel-to-reel recorder. Reel-to-reel tapes were common until the compact cassette or "cassette tape" took hold of the market.
The cassette was patented in and eventually beat out 8-track tapes and reel-to-reel to become the dominant tape format in the audio industry. The Tape Recorder " ". Tape Types and Bias " ". Type 0 - This is the original ferric-oxide tape. It is very rarely seen these days. Type 1 - This is standard ferric-oxide tape, also referred to as "normal bias.
The ferric-oxide particles are mixed with chromium dioxide. Type 4 - This is "metal" tape. Metallic particles rather than metal-oxide particles are used in the tape.
Cite This! The Treble and Soprano recorders are the most popular and are used by solo artists and in the classroom setting. Recorders come in both plastic and wood. Plastic recorders are great for classrooms and beginners, but wood recorders have a sweeter sound. To create sound the user must blow into the mouthpiece or windway.
The wind blows into the instrument and against an edge referred to as the labium and this creates the note.
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