home *** CD-ROM | disk | FTP | other *** search
/ Programming Sound Cards / Programming Sound Cards.iso / sound_05 / agvsbp.txt < prev    next >
Text File  |  1995-01-01  |  5KB  |  79 lines
  1. Title : sound blaster pro and adlib gold
  2.  
  3. When you call Creative Labs, you might also want to ask them about some
  4. of the features the AdLib Gold has that the SB Pro does not.
  5.  
  6.                                                AdLib    Sound Blaster
  7.                                                Gold     Pro  
  8.  
  9. ----------------------------------------------------------------------
  10. FM Synthesizer Chip                   1 Stereo YM262    2 Mono YM3812
  11. # FM voices used in Stereo                        20               11
  12. # FM voices used in Mono                          20               22
  13. Two Operator FM Synthesis                        Yes              Yes
  14. Four Operator FM Synthesis                       Yes               No
  15. # FM Waveforms                                     8                4
  16. Negligible Wait Between Chip Writes     Yes (0.28µs)      No (23.0µs)
  17. ----------------------------------------------------------------------
  18. Sampling Resolution                          12 bits           8 bits
  19. Sampling Dynamic Range                         72 dB            48 dB
  20. Accepts 16 bit PCM Data                          Yes               No
  21. Sampling Input & Playback Channels                 2                2
  22. Maximum Stereo Sampling Rate                44.1 KHz        22.05 KHz
  23. Digitized Sound Data Format               5.5125 KHz            2 KHz
  24. Hardware Comp/Decompression                   3 to 1           4 to 1
  25. Simultaneous use of 2 DMA Channels               Yes               No
  26. Sampling FIFO Buffer                   2 x 128 Bytes      unspecified
  27. Programmable Interrupts                          Yes     Jumpers only
  28. Interrupt Conditions(s)                    8 Choices    On Completion
  29. Variable Anti-aliasing Filter                    Yes               No
  30. Double Oversampling Digital Filters              Yes               No
  31. Double Undersampling Digital Filters             Yes               No
  32. ----------------------------------------------------------------------
  33. On-board Analog Stereo Mixer                     Yes              Yes
  34. Accepts CD-Audio (RedBook) Input                 Yes              Yes
  35. Volume Control on Each Source             128 levels         8 levels
  36. Stereo Output Power Amplifier            1.2 W in 8Ω     0.75 W in 8Ω
  37. ----------------------------------------------------------------------
  38. MIDI Interface (IN, OUT, THRU)                   Yes              Yes
  39. Simultaneous MIDI IN & OUT                       Yes               No
  40. MIDI FIFO Buffer                                 Yes              Yes
  41. Joystick Port                                    Yes              Yes
  42. SCSI CD-ROM Interface                     153 kB/sec       153 kB/sec
  43. ----------------------------------------------------------------------
  44. Programmable Output Volume Control               Yes              Yes
  45. Programmable Output Tone Control                 Yes               No
  46. Programmable Gain for Mic & Aux Input            Yes        Automatic
  47. Programmable Card Localization                   Yes               No
  48. Programmable DMA Channel Selection               Yes     Jumpers only
  49. Programmable Interrupt Selection                 Yes     Jumpers only
  50. Programmable On-Board Chip Select                Yes               No
  51. ----------------------------------------------------------------------
  52. ID Code Available                                Yes               No
  53. Directly Accessible Control Registers            Yes               No
  54. Readable Control Registers                       Yes               No
  55. Registers Stored in Non-Volitile Memory          Yes               No
  56. ----------------------------------------------------------------------
  57. Price With On-Board SCSI Interface           $399.95          $299.95
  58. Price Without SCSI Interface                 $299.95              n/a
  59.  
  60.  
  61. "The major difference between the Ad Lib Gold and its competitors is the
  62.   quality of the sound, both digitized and synthesized."
  63.  
  64. "* Ad Lib Gold features a twelve-bit rather than an eight-bit ADC/DAC,
  65.   which increases the dynamic range from 48dB to 72 dB and provides
  66.   crystal-clear digital sound output."
  67.  
  68. "* Ad Lib Gold utilizes a powerful, new stereo FM synthesizer chip from
  69.   Yamaha called YM262, rather than two monophonic YM3812 chips.  This
  70.   gives Ad Lib Gold eight FM waveforms instead of four, and permits
  71.   operators to be combined in groups of 4 instead of only 2, for richer,
  72.   more resonant sounds."
  73.  
  74. "* Ad Lib Gold's true stereo synthesizer chip allows voices to be directed
  75.   left, right, or center.  In contrast, YM3812-equipped boards must use
  76.   two voices (one on each side) to direct sound to the center, which reduces
  77.   the number of stereo voices to eleven.  Only Ad Lib Gold provides real
  78.   stereo on each and every one of its 20 synthesized voices."
  79.