alexey fridman, "piano design and sound generation"
TRANSCRIPT
Piano Design and Sound Generation Piano Design and Sound Generation
student Alexey Fridmanstudent Alexey Fridman
Piano Design and Sound Generation Piano Design and Sound Generation
student Alexey Fridmanstudent Alexey Fridman
PianoPiano
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Basic configurationsBasic configurations
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Grand pianoGrand piano Upright pianoUpright piano
Piano partsPiano parts
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• keyboard & action
• iron plate & strings
• soundboard
• case (rim)
• pedals
Piano partsPiano parts
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keyboard & actionkeyboard & action
• iron plate & strings
• soundboard
• case (rim)
• pedals
Keyboard (88 keys)Keyboard (88 keys)
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Playing rangePlaying range OctavesOctaves• five-line
• four-line
• three-line
• two-line
• one-line
• small
• great
• contra
• sub-contra
Notes namesNotes names
Grand piano mechanical actionGrand piano mechanical action
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Grand piano mechanical actionGrand piano mechanical action
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repetition systemrepetition system
Grand piano mechanical actionGrand piano mechanical action
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Grand piano mechanical actionGrand piano mechanical action
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Vertical piano actionVertical piano action
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Piano partsPiano parts
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keyboard & actionkeyboard & action
• iron plate & strings
• soundboard
• case (rim)
• pedals
Piano partsPiano parts
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keyboard & action
iron plate & stringsiron plate & strings
• soundboard
• case (rim)
• pedals
FrameFrame
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Plate of a Steinway grand piano
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made of cast iron
string tension > 20 tons
Sound frequency of stringsSound frequency of strings
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Vibrational modes of an ideal string, dividing the string length into integer divisions, producing harmonic partials f, 2f, 3f, 4f, etc. (where f means fundamental frequency).
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Sound frequency of stringsSound frequency of strings
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512 Hz 1024 Hz256 Hz
Three strings tuned to the same frequency
StringsStrings
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• loud attack
• fast decay
• long sustain
String length and massString length and mass
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Strings vary in length and thickness, so that many octaves can fit on one sounding board
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Piano partsPiano parts
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keyboard & action
iron plate & stringsiron plate & strings
• soundboard
• case (rim)
• pedals
Piano partsPiano parts
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keyboard & action
iron plate & strings
soundboardsoundboard
case (rim)case (rim)
• pedals
Soundboard & rimSoundboard & rim
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soundboardsoundboard soft and flexible
outerouter rimrim hard and immobile
Piano partsPiano parts
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keyboard & action
iron plate & strings
soundboardsoundboard
case (rim)case (rim)
• pedals
Piano partsPiano parts
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keyboard & action
iron plate & strings
soundboard
case (rim)
pedalspedals
PedalsPedals
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Piano partsPiano parts
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keyboard & action
iron plate & strings
soundboard
case (rim)
pedalspedals
Piano partsPiano parts
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keyboard & actionkeyboard & action
iron plate & stringsiron plate & strings
soundboardsoundboard
case (rim)case (rim)
pedalspedals
Thank youThank you
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Thank youThank you