Audio Audit Free is free tone and noise generator.
!!! You can find more functions in our full Audio Audit !!!
All samples are made with professional equipment.
The application serves as a reference generator of sounds or records too.
What is Audio Audit for?
- Test quality of headphones, speakers and other audio device
- Check crossover frequency for the subwoofer setting
- Invaluable when choosing headphones or audio equipment in the shop - really plays everything as sales man says or writes the manufacturer?
- Sell audio equipment and want to show your customers? You can use Audio Audit.
- Do you have new speakers or audio equipment? Use Audio Audit for Burning-in
- Are you a DJ? Sound technician? Test your audio system and space whenever you need it.
Surely you will find other possibilities. If you´re missing some features, please contact us and we will add it to update.
How to use Audio Audit?
Tone – Generator of sinusoidal frequency
Find the frequency on which realy start play your headphones or speakers. In the ideal case should be heard all frequencies without sudden increase or decrease of volume - the best test is SEEK (Swept Sine). If you are using a subwoofer, you'll find the frequency at which you should have used speakers.
Noise Generator – generates different types of noise
Use Audio Audit as a reference tone generator to check frequency responses or the adverse influence of room.
- White noise - It can also be used for meditation,
- Pink noise - It can also be used for burning in drivers
- Brown noise - use to check subwoofer phase issues. It can also be used for burning in midrange and bass drivers.
- Filtered Noise - White noise, which is adapted to the anatomy of the human ear.
- Silent noise – „empty record“ – if you hear something else then just a quiet noise, something is wrong
Microphone - easy tool for ambient measurement with graphics precise indicators
Key features of the application
- determine the frequency range loudspeaker systems
- finding the frequency characteristics of the audio set
- detection of parasitic resonances and disturbing sounds
- burn-in speakers (The new speakers are recomended to burn-in. For this purpose you can use one of the available noise.)
- test the sound quality after adjustment
- sound level can be controlled only by hardware buttons on the device
Simply it´s reference application.
Additional informationes
Frequency generator
generates sinusoidal frequency or swap sinusoidal signal for testing
Noise generator
generates white, pink, brown, human and silence noise
- white noise - noise containing all frequencies in the range defined by the same volume
- pink noise - containing all the audio frequencies with a defined volume falls off at 3dB per octave
- brown noise - containing all the audio frequencies with a defined volume falls off at 6dB per octave
- human noise - containing all the audio frequency range with a defined volume adjusted according to physiological properties of the human ear
- silence noise - white noise with reduced volume
Microphone
for ambient testing
Detail informationes
"Analogue" indicators:
- Peak indicator - red color (-75dB - 0dB)
- RMS indicator - black color (-75dB - 0dB)
Peak and RMS indicators for the left and the right channel
Frequency generator
- Sinusoidal signal of frequency (1/3 octave scale, Peak -12dB, RMS -15dB):
20Hz, 25 Hz, 31Hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz, 315Hz, 400Hz, 500Hz, 630Hz, 800Hz, 1000Hz, 1250Hz, 1600Hz, 2000Hz, 2500Hz, 3150Hz, 4000Hz, 5000Hz, 6300Hz, 8000Hz, 10000Hz, 12500Hz, 16000Hz, 20000Hz
- Swap sinusoidal signal: 20Hz - 20000Hz (logarithmic course, Peak -12dB, RMS -15dB)
- Swap sinusoidal signal: 20Hz – 630 Hz (logarithmic course, Peak -12dB, RMS -15dB)
- Swap sinusoidal signal: 630Hz – 20000Hz (logarithmic course, Peak -12dB, RMS -15dB)
Noise generator
- White Noise: Peak -10dB, RMS -15dB, frequency range 20Hz – 20000Hz)
- Pink Noise: Peak -2dB, RMS -15dB, frequency range 20Hz – 20000Hz)
- Brown Noise: Peak -2dB, RMS -15dB, frequency range 20Hz – 20000Hz)
- Human Noise: Peak -2dB, RMS -15dB, frequency range 20Hz – 20000Hz)
- Silence Noise: Peak -55dB, RMS -96dB, frequency range 20Hz – 20000Hz)
Microphone
- Precise graphics indicators for the both channels (from -22dB to 0dB, step by 1dB)
