Lesson 3 second year fourth quarter s
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Lesson 3 second year fourth quarter s

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Lesson 3 second year fourth quarter s Lesson 3 second year fourth quarter s Presentation Transcript

  • HARDWARE REQUIREMENTS FOR AUDIO Computer Components
  • PROCESSOR • Pentium 133 or a Power PC Mac – the minimum for acceptable performance for playing MP3s. • The higher the processor, the better the performance and quality of sound can be achieved.
  • MEMORY • The more RAM (Random Access Memory), the better. • But when the RAM is full, the computer uses the hard disk to handle the overflow.
  • HARD DISKS • The larger and faster the hard disk, the better. • It is needed for ripping, encoding and editing sound files.
  • CD DRIVES  CD-ROM  CD-R  CD-RW  Drive performance
  • CD – ROM (CD DRIVES) • Stands for Compact Disc-Read Only Memory • They can only read information not write.
  • CD-R (CD DRIVES)  Stands for Compact Disc-Recordable  It can record information but one can not erase or edit the information
  • CD-RW (CD DRIVES)  Stands for Compact Disc-ReWritable  It can write and later erase or rewrite the information.
  • DRIVE PERFORMANCE (CD DRIVES)  CD-ROM drives are usually labelled to as 12X, 16X or some other X value.  The X value refers to the data transfer rate relative to 150KB/sec 1x.
  • DVD DRIVES Also known as DigitalVideo Disc. It has several types, the single- layer DVD media with memory up to 4.7 GB on a storage disc while the dual-layer or double-layer DVD media can pack up to 8.5 on a single disc
  • DVD DRIVES (DRIVE PERFOMANCES)  Currently, the fastest write speed is 20X for recording on a single-layer DVD-R and DVD+R media.  Double-layer DVD+R and dual-layer DVD-R media write speeds are currently at 8X.
  • CONNECTORS  IDE  SCSI  Parallel  USB
  • IDE (CONNECTORS)  Stand for Integrated Drive Electronics  This means that the controller circuitry is on the drive rather than on a separate card  ATAPI (ATAttachment Packet Interface) is the protocol that is used to communicate with non-hard drive IDE devices like CD-ROMs
  • SCSI (CONNECTORS)  Stands for Small Computer Systems Interface  Gives faster connection throughout and reduces the load on the computer’s processor.  Plextor models will rip reliably maximum speed  Standard SCSI supports up to seven devices on the same channel.
  • PARALLEL (CONNECTORS) Some external drives can sometimes be based on SCSI but are usually limited to just one device. They use parallel interface so that there can be two or more connections but only one at a time.
  • USB (CONNECTORS) Stands for Universal Serial Bus General purpose interface designed to overcome the limitations of serial and parallel interfaces.
  • SOUND CARDS Most overlooked devices in computer audio. It handles analog to digital (A/D) and digital to analog (D/A) conversion, mixing, music synthesizing, sound effects, and amplification.
  • STORAGE DEVICES  Floppy Disks  CDs  DVDs  MP3 players  Thumb Drives
  • FLOPPY DISKS STORAGE DEVICES It is a data storage medium that is composed of a disk of thin, flexible (“floppy”) magnetic storage medium encased in a square or rectangular plastic shell. It can handle data up to 1.44MB
  • CDS STORAGE DEVICES Officially known as the Compact Disc DigitalAudio or CD-DA It remains the standard physical medium for the sale of commercial audio recordings to the present day.
  • DVDS STORAGE DEVICES  DVD-Audio (Commonly abbreviated as DVD-A) is a digital format for delivering very high-fidelity audio content on a DVD  An advantage of using a DVD-Audio disc is that users may optionally employ a copy protection mechanism called Content Protection for Pre-recorded Media (CPPM)  This prevents users from extracting audio to computers and portable media players.
  • MP3 PLAYERS STORAGE DEVICES Digital audio player, more commonly referred to as an MP3 player, is an electronic device that stores, organizes and plays audio files from 32GB up to 250GB.
  • THUMB DRIVES STORAGE DEVICES Known as portable data storage Characterized as small, handy and about the size of a human thumb
  • SPEAKERS AND HEADPHONES These are essential for listening to sound recordings
  • MICROPHONES The importance of selecting the right kind of microphone is often overlooked by ICT technicians.
  • TWOTYPES OF MICROPHONES  Dynamic Microphone (also known as a Karaoke microphone)  Works with most sound cards.  Condenser Microphone (also known as a powered microphone)  Only works with sound cards that can provide power to the microphone.
  • TWOTYPES OF MICROPHONES Dynamic Microphone Dynamic Microphones  Moving coil with magnet (like a speaker)  Requires no power  Generally more rugged than condenser microphones (except for ribbon mics)  Generally not as sensitive as condenser microphones  Generally not as flat as condenser microphones Condenser Microphone Condenser (Electret) Microphone  Moving diaphragm only (no coil to move)  Flatter than dynamic microphones  More sensitive than dynamic microphones  Requires power source  Traditional microphones require high-voltage power supplies (9 volts)  Modern electric microphones require only battery (or phantom)  Not as rugged as dynamic microphones