Autosound 2000 Disc Three

System/Environmental Test CD

Item #: 503CD103

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Autosound 2000 has created this series of test CDs for the professional and the serious hobbyist. Each disc is designed to test a specific performance parameter of your vehicle's audio system.

Disc Three covers a broader range of musical styles. Non-music tracks include human voices at various spots on a typical soundstage as well as various levels of distortion. The liner notes tell you how to use each selection.

Please call a Sales Advisor for a complete track listing. You save about $10 when you buy the 5-disc set.

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What's in the box?

  • CD 3: System/Environment Tests
  • How-to-use information booklet

Product Research

Disc 3: System/Environment Tests

  • Track 1: "Stranger in My Bed" - Up Front - The Power of Seven
  • Track 2: "Dish Rag" - I've Got the Music In Me - Thelma Houston & Pressure Cooker
  • Track 3: "Dance of the Knights", from Prokofiev's Romeo & Juliet
  • Track 4: "Dirty Blue" - The Name is Makowicz - Adam Makowicz w/Phil Woods
  • Track 5: "Wishing Well" - Speaking in Melodies - Michael Ruff
  • Track 6: "Dock of the Bay" - Lincoln Mayorga & Distinguished Colleagues
  • Track 7: A 1 kHz sine wave at -20 dBfs
  • Track 8: A 1 kHz sine wave at 0 dBfs

Tracks 9-18 check for acoustic response:

  • Track 9: 20Hz
  • Track 10: 62 Hz
  • Track 11: 125 Hz
  • Track 12: 250 Hz
  • Track 13: 500Hz
  • Track 14: 2.5 kHz
  • Track 15: 5 kHz
  • Track 16: 10kHz
  • Track 17: 15 kHz
  • Track 18: 19 kHz
  • Track 19: Recording of someone counting from 1-25
  • Track 20: An identification track for the right channel
  • Track 21: An identification track for the left channel
  • Track 22: Check for relative polarity between left/right channels
  • Track 23: Polarity pulses
  • Track 24: 1 kHz sine wave w/bottom half clipped
  • Track 25: 3 people describing their location w/in the soundstage
  • Track 26: Same as 25, but all 3 people talking simultaneously

Tracks 27-32 contain a specially processed music selection for evaluating accuracy and focus of the lateral sound stage

  • Track 28: The music is switched to mono (L+R)
  • Track 29: The mono signal is fed to the left channel only
  • Track 30: The image shifts back to the center
  • Track 31: The mono signal shifts to the right channel only
  • Track 32: The signal is switched back to stereo
  • Track 33: 45-second sample of music recorded at a normal transfer level
  • Track 34: Music sample recorded with transfer level -10db
  • Track 35: Music sample recorded with transfer level -20 db
  • Track 36: Music sample recorded with transfer level -30 db
  • Track 37: Music sample recorded with transfer level -40 db
  • Track 38: Music sample recorded with transfer level -50db
  • Track 39: Music sample recorded with transfer level -60db
  • Track 40: Music sample recorded with transfer level -70 db

Tracks 47-56 - These tracks contain pink noise that has been filtered into successive 1/3-octave bands:

Track Frequencies
47 25 Hz, 31.5 Hz, 40Hz
48 50 Hz, 63 Hz, 80 Hz
49 100 Hz, 125 Hz, 160 Hz
50 200 Hz, 250 Hz, 315 Hz
51 400 Hz, 500 Hz, 630 Hz
52 800 Hz, 1 kHz, 1.2 kHz
53 1.6 kHz, 2 kHz, 2.5 kHz
54 3.15 kHz, 4kHz, 5 kHz
55 6.3 khz, 8 kHz, 10 kHz
56 12.5 khz, 16 kHz, 20 kHz
  • Track 57: 20 Hz to 20kHz continuous warble
  • Track 58: warble from 100 Hz to 20 Hz
  • Track 59: individual frequencies from 10Hz to 99Hz
  • Tracks 60-62: These tracks collectively contain a very flat, low distortion 20-20kHz sweep
  • Track 63: Musical note A (440 Hz)
  • Track 64: 100 Hz tone burst
  • Track 65: 1 kHz tone burst
  • Track 66: 10 kHz tone burst
  • Track 67: 100 Hz square wave
  • Track 68: 1 kHz square wave
  • Track 69: This track contains the full dynamics of the original recording and is intended as a reference track for track 70
  • Track 70: Recorded with the same peak levels as the preceding track but compressed dynamically
  • Track 71: This track tests the radiated distortion characteristics of your system
  • Track 72: Same as track 71, but with 0.1 percent distortion
  • Track 73: Same as track 71, but with 0.3 percent distortion
  • Track 74: Same as track 71, but with 1 percent distortion
  • Track 75: Same as track 71, except with 3% distortion
  • Track 76: Same as track 71, but with 10 percent distortion
  • Track 77: Same distortion test as before, but the test signal is music
  • Track 78: Same as track 77, but with .1 percent distortion
  • Track 79: Same as track 77, but with .3 percent distortion
  • Track 80: Same as track 77, but with 1 percent distortion
  • Track 81: Same as track 77, but with 3 percent distortion
  • Track 82: Same as track 77, but with 10 percent distortion
  • Track 83: Music selection with no added delay used as a reference for the following track
  • Track 84: Music selection demonstrating group delay
  • Track 85: Demonstration of process known as "In the Ear(ITE) recording recordings were made on Pit Row during 1994 time trials at Indianapolis Motor Speedway, in this track you are standing between Roger Penske's pits and the main straightaway
  • Track 86: This track was recorded in the same manner as 85, and starts with a short walk down pit row, with race cars passing you as a car comes into the pits

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