Specifications: Sound Blaster Vibra 16X CT4170

General | Audio Performance | Features | Power

General

Manufacturer Creative Labs
Model Vibra 16X CT4170
Plug and Play ISA specification version 1.0a

Audio Performance
Frequency response 20 Hz-20 kHz (line-out)
Signal to noise ratio 80 dB (line-out) @ 1 kHz
Total harmonic distortion 0.02%
Output power (maximum) 4 W PMPO per channel
(4 ohms load minimum)
Output signal (maximum) 8.8 Vpp
AGC amplifier gain 20 dB-46 dB
(20 dB fixed gain when AGC is off)
Microphone impedance 600 ohms
Microphone input range 30 mVpp-200 mVpp
Line-in impedance 15 k ohms
Line-in input range 0-2 Vpp
CD audio-in impedance 15 k ohms
CD audio-in sensitivity 0-2 Vpp

Features

Digitized Sounds

  • Sound Blaster 16 compatible
  • 8/16-bit stereo sampling from 5 kHz to 44.1 kHz (selectable)
  • Recording source: microphone, stereo line-in, CD-audio, synthesized music or multiple source recording
  • 8-bit DMA transfer on channel 1 or 3 (software selectable)
  • 16-bit DMA transfer on 5 or 7 (software selectable)
  • 8-bit ADPCM decompression in hardware (2:1, 3:1, and 4:1)
  • Advanced 16-bit software-based real-time audio compression/decompression system with the following standards:
    • Creative ADPCM (16:4)
    • CCITT A-law (16:8)
  • Automatic dynamic filtering for digital audio recording and playback

Synthesized Music

  • Advanced 4-operator music synthesizer with two modes
  • Upgrade option for Wave Blaster II, an add-on daughterboard for true 16-bit Wave-sample synthesis

Stereo Digital/Analog Mixer

  • Output mixing of all audio sources: digitized sounds, synthesized music, line-in, CD-audio, PC speaker
  • Input mixing sources: synthesized music, microphone, line-in, CD-audio, PC speaker
  • Multiple source recording and L/R channels that can be swapped or mixed
  • 8-level volume control on digitized sound, synthesized music, microphone, CD-audio, line-in, master volume
  • 4-level volume control of PC speaker

MIDI Interface

  • MPU-401 UART mode
  • MIDI time-stamp for multimedia extension
  • Input buffer: 64-byte FIFO

Joystick Port

  • Standard PC joystick port for 1 or 2 joysticks (optional Y-cable available from Creative)

Microphone Automatic Gain Control (AGC) Amplifier

  • Selectable AGC for optimum microphone sensitivity
  • Input impedance: 600 ohms
  • Sensitivity: 30 mVpp to 200 mVpp

Output Power Amplifier

  • 4 W per channel (PMPO)
  • Load impedance: 4 ohms (minimum)

Power
Voltages +5 VDC (± 5%)
+12 VDC (± 5%)