Pro Audio Test Tones CD $9.99 plus $4.00 Shipping

• Channel Identification and phasing and continuity checks
• Resonance/Rattle Locating (Home, Studio or In-Car)
• Loudspeaker Crossover Tests (driver performance and operation)
• Absolute System Level Checking
• Graphic Equaliser Alignment
• Locating and Resolving Standing Wave Issues
• Equipment Performance Testing
• Peak Programme and Level Meter Calibration and Ballistics
• Setting up and balancing surround sound speaker systems.
• Loudspeaker Positioning
• System noise performance with very low level sighals
• Sub-Woofer Tuning and set up.
• Equipment Burn-In using these predictable waveforms
• Equipment Fault Finding

The CD will be presented in a full size Jewel Case with a two sided track listing/usage guide presented as a CD Insert explaining the use of each test (or group of tests) The CD is colour printed with condensed track listing for ease of use.

The audio levels on this CD are quoted with reference to the maximum level achievable from the CD format. Care should be taken when using this disk as some tracks are designed to test the very low and very high frequency performance of all audio systems. Just because you may not be able to hear the track does not mean that your equipment is not capable of faithfully reproducing it !!!
 

The Full Track Listing On This CD is:
1.    400Hz at 0dB (Absolute maximum digital level possible from the CD Format).
2.    Left/Right Channel Identification (400Hz, -8dB).
3.    Pink Noise Channel Phasing Test.

Spot Musical Frequencies (all at -8dB w.r.t Digital Maximum in CD format)
4.    Lowest Organ Note 16.3Hz,
5.    Lowest Piano Note 27.5Hz,
6.    Lowest Contrabassoon Note 29Hz,
7.    Lowest Double Bass Note 41Hz,
8.    Lowest Tuba Note 43Hz,
9.    Lowest Cello Note 65Hz,
10.    Lowest Violin Note 196Hz,
11.    “Middle C” on Piano 261Hz,
12.    Tuning Fork 440Hz,
13.    Soprano “High C” 1046Hz,
14.    Highest violin Note 4146Hz,
15.    Highest Piano Note 4186Hz. 
 
Spot Test Frequencies (all at -8dB w.r.t Digital Maximum in CD format):
16.    15Hz,
17.    25Hz,
18.    40Hz,
19.    60Hz,
20.    100Hz,
21.    150Hz,
22.    250Hz,
23.    400Hz,
24.    600Hz,
25.    1000Hz,
26.    1500Hz,
27.    2500Hz,
28.    4000Hz,
29.    6000Hz,
30.    10000Hz,
31.    15000Hz,
32.    20000Hz.
 
Gliding Tone Tests (all at -8dB w.r.t Digital Maximum in CD format):
33.    Gliding Tone Test from 0Hz to 100Hz with markers every 10Hz
34.    Gliding Tone Test from 100Hz to 200Hz with markers every 10Hz

Level Meter and PPM Calibration Tests
35.    400Hz, 0dB (maximum digital level from CD)
36.    400Hz, -4dB.
37.    400Hz, -8dB.
38.    400Hz, -12dB.
39.    400Hz, -16dB.
40.    400Hz, -20dB,
41.    400Hz, -30dB
42.    400Hz, -40dB.
43.    400Hz, -50dB.
44.    400Hz, -60dB.

Ten Band, One Octave, Graphic Equaliser Tests (all at -8dB w.r.t Digital Maximum in CD format):
45.    31Hz,
46.    62Hz,
47.    125Hz,
48.    250Hz,
49.    500Hz,
50.    1000Hz,
51.    2000Hz,
52.    4000Hz,
53.    8000Hz,
54.    16000Hz.

Fifteen Band, 2/3 Octave, Graphic Equaliser Tests (all at -8dB w.r.t Digital Maximum in CD format):
55.    25Hz,
56.    40Hz,
57.    63Hz,
58.    100Hz,
59.    160Hz,
60.    250Hz,
61.    400Hz,
62.    630Hz,
63.    1000Hz,
64.    1600Hz,
65.    2500Hz,
66.    4000Hz,
67.    6300Hz,
68.    10000Hz,
69.    16000Hz. 

Level Meter (PPM/VU) Ballistic Checks to IEC 60268 Standard:
70.    Level Meter Ballistic Checks. 1000Hz, -8dB, 5 off 3mS Pulses.
71.    Level Meter Ballistic Checks. 1000Hz, -8dB, 5 off 10mS Pulses.
72.    Level Meter Ballistic Checks. 1000Hz, -8dB, 5 off 100mS Pulses.
73.    Level Meter Ballistic Checks. 1000Hz, -8dB, 5 off 300mS Pulses.
 

The Total Running time of the CD is 29 Minutes 30 Seconds.