Sound Situation Formats and Foundations
Cassette Tapes Introduced by the Music Industry
Cassette Tapes Introduced by the Music Industry Thin plastic ‘tape’ wound on to a spindle
Cassette Tapes Introduced by the Music Industry Thin plastic ‘tape’ wound on to a spindle Tape is layered with Ferric Oxide.
Cassette Tapes Exposed to a magnetic field
Cassette Tapes Exposed to a magnetic field 2 Key features of cassettes:
Cassette Tapes Exposed to a magnetic field 2 Key features of cassettes: 1) can record material to the tape
Cassette Tapes Exposed to a magnetic field 2 Key features of cassettes: 1) can record material to the tape 2) can easily erase the tape and re-record.
Compact Disc Plastic Disk 4 1/100’s of an inch thick Label Acrylic Aluminum Plastic Base Material
Compact Disc Plastic Disk 4 1/100’s of an inch thick Coated with Aluminum Label Acrylic Aluminum Plastic Base Material
Compact Disc Plastic Disk 4 1/100’s of an inch thick Coated with Aluminum Continuous spiral of bumps underneath Label Acrylic Aluminum Plastic Base Material
Compact Disc Plastic Disk 4 1/100’s of an inch thick Coated with Aluminum Continuous spiral of bumps underneath Single track of continuous data. Label Acrylic Aluminum Plastic Base Material
Compact Disc Information is written and read in a spiral
Compact Disc Information is written and read in a spiral Allows for CD’s of all sizes to be created.
CD Player Components
Drive Motor – spins the disc x/sec
CD Player Components Drive Motor – spins the disc x/sec Laser Lens – focuses on bumps and reads
CD Player Components Drive Motor – spins the disc x/sec Laser Lens – focuses on bumps and reads Tracking Mechanism – moves the laser
CD Player Components Drive Motor – spins the disc x/sec Laser Lens – focuses on bumps and reads Tracking Mechanism – moves the laser Must be able to track the bumpy spiral.
Digital Storage WAV – Waveform audio (uncompressed)
Digital Storage WAV – Waveform audio (uncompressed) Similar in sound and size to CD Files
Digital Storage WAV – Waveform audio (uncompressed) Similar in sound and size to CD Files MPEG3 – Compressed audio format
Digital Storage WAV – Waveform audio (uncompressed) Similar in sound and size to CD Files MPEG3 – Compressed audio format Created by Motion Picture Experts Group
Digital Storage WAV – Waveform audio (uncompressed) Similar in sound and size to CD Files MPEG3 – Compressed audio format Created by Motion Picture Experts Group First format driven by consumers
Digital Storage WAV – Waveform audio (uncompressed) Similar in sound and size to CD Files MPEG3 – Compressed audio format Created by Motion Picture Experts Group First format driven by consumers CD song uses and average of 40 MB
Digital Storage WAV – Waveform audio (uncompressed) Similar in sound and size to CD Files MPEG3 – Compressed audio format Created by Motion Picture Experts Group First format driven by consumers CD song uses and average of 40 MB MP3 version of song would use 4 MB
Digital Storage WAV – Waveform audio (uncompressed) Similar in sound and size to CD Files MPEG3 – Compressed audio format Created by Motion Picture Experts Group First format driven by consumers CD song uses and average of 40 MB MP3 version of song would use 4 MB Some CD’s have ability to read MP3.
Understanding MP3 Re-saved = re-compressed
Understanding MP3 Re-saved = re-compressed Loses quality
Understanding MP3 Re-saved = re-compressed Loses quality Carries information in META Tags (ID3)
Understanding MP3 Re-saved = re-compressed Loses quality Carries information in META Tags (ID3) Imbeds info on artist, title, album art
Understanding MP3 Re-saved = re-compressed Loses quality Carries information in META Tags (ID3) Imbeds info on artist, title, album art Info can be displayed on screens
Understanding MP3 Re-saved = re-compressed Loses quality Carries information in META Tags (ID3) Imbeds info on artist, title, album art Info can be displayed on screens Can search to restore lost info.
MP3 Players 1998 – first MP3 player introduced
MP3 Players 1998 – first MP3 player introduced Could store and play MP3
MP3 Players 1998 – first MP3 player introduced Could store and play MP3 No moving parts - Solid State Memory
MP3 Players 1998 – first MP3 player introduced Could store and play MP3 No moving parts - Solid State Memory Microprocessor inside.
MP3 Players Various Forms today
MP3 Players Various Forms today Flash Memory
MP3 Players Various Forms today Flash Memory Smaller storage, no moving parts
MP3 Players Various Forms today Flash Memory Smaller storage, no moving parts Better for jogging and active people
MP3 Players Various Forms today Flash Memory Smaller storage, no moving parts Better for jogging and active people Hard Drive Players (iPod)
MP3 Players Various Forms today Flash Memory Smaller storage, no moving parts Better for jogging and active people Hard Drive Players (iPod) Moving Parts
MP3 Players Various Forms today Flash Memory Smaller storage, no moving parts Better for jogging and active people Hard Drive Players (iPod) Moving Parts More fragile
MP3 Players Various Forms today Flash Memory Smaller storage, no moving parts Better for jogging and active people Hard Drive Players (iPod) Moving Parts More fragile Larger storage capacity