Testtones

Test Audio

Here are some audio files that you can use for test purposes!
How should / can use the test files?: Download and burn a CD.

Sine Sweep

Linear sine sweep from 0 to 120Hz. File size 21MB.
The sweep is linear and is in 120 seconds, which means that you can look at the clock on the CD player to keep track of the frequency being played. The level is-20dB. Suitable for example to listen and measure room resonances.

Three sweeps runs for 20 seconds. Download and open the Word document to find out the frequency at different times.
Linear sweep 0-200Hz. File Size 1.7MB
Linear sweep 0-2000Hz. File Size 1.7MB
Linear sweep 0-20000Hz. File Size 1.7MB

The sweep runs for 30 seconds. Download and open the Word document to find out the frequency at different times.

Logarithmic sweep 20-20000Hz. File Size 2.6MB

The sweep runs for 40 seconds. Download and open the Word document to find out the frequency at different times.

Logarithmic sweep 2-20000Hz. File Size 3.5MB

Noise

10 seconds of white noise mono. File Size 1.7MB
Mono. Can be used to check the noise level from the center speaker in a PLII system. Or to check if we have phased the speakers right. Max level is -20dB.

10 seconds of white noise uncorrelated. File Size 1.7MB
Max level is -20dB.

10 seconds of white out of phase noise. File Size 1.7MB
Mono. Can be used to check the sound level of bakkanalernahögtalare in a PLII system. Or to check if we have phased the speakers right. Max level is -20dB.

Pulses

A 'dirac'-pulse File Size 345kB.
Includes a 2 seconds long track with only silence, except for a pulse that is full TAWDRY 1 seconds into the track. Positive TAWDRY. With the can using the oscilloscope or similar function on a computer check on the pulse representation is more or less good and the polarity of the system.

Music

In future:-