Technology

Exceptional sound delivered through unprecedented innovation.

Measurement technologies

Patent-pending headphone measurement technology

HAP Headphone acoustic power measurement

Headphone measurement technology based on measurement of perceived acoustic power.

After 3 years of development and testing Sonarworks has developed an extremely accurate headphone measurement system (HAP). It is a new patent pending headphone measurement technology that measures acoustic power frequency response that would be perceived by a human from these headphones. Frequency response measured by HAP is a realistic representation of how particular headphones sound to a person. HAP includes proprietary measurement tools, software and methodology.

ACE Audio Calibration Engine

Processing engine designed specifically for sound calibration use.

ACE is a truly unique digital processing engine designed specifically for audio calibration. It is a Swiss knife for every possible calibration scenario - be it a professional mastering studio or a bedroom monitoring setup. This engine is scalable in resolution of up to 16000 adjustment points that is far beyond what any equalizer can deliver. It has floating point mathematics and several modes of operation that are designed for different use cases. ACE is finetuned for accurate and delicate sound processing. It is the secret behind what many audio engineers describe as transparent and natural sound.

Calibration technologies

Take control of your sound

ACE Audio Calibration Engine

Processing engine designed specifically for sound calibration use.

Type Tonal accuracy CPU load Pre-ringing Latency
Minimum phase 1.1 ms
Mixed phase 20.4 ms
Linear phase 63.5 ms

ACE is a truly unique digital processing engine designed specifically for audio calibration. It is a Swiss knife for every possible calibration scenario - be it a professional mastering studio or a bedroom monitoring setup. This engine is scalable in resolution of up to 16000 adjustment points that is far beyond what any equalizer can deliver. It has floating point mathematics and several modes of operation that are designed for different use cases. ACE is finetuned for accurate and delicate sound processing. It is the secret behind what many describe as transparent and natural sound.

DRE Driver Range Extension

Frequency range is primarily limited by the physical properties of drivers, however with DRE technology it can be significantly improved. While measuring the actual performance of a speaker during calibration, DRE calculates filter adjustments to change the playable range. With DRE only the low and high natural roll-off frequencies are adjusted without affecting other frequencies. Extending frequency response ensures that even smaller speakers can play back frequencies up to 20Hz lower than they were originally capable of. Limiting playback range helps to protect drivers during high volume playback.

up to 20 Hz
low frequency extension

APS Acoustic Power Simulation

Incredibly realistic simulation of different loudspeakers and headphones based on acoustic power

Perceived acoustic power represents how we perceive sound and once the performance of one sound system is precisely mapped, other systems can be simulated with high accuracy. For this reason, APS works only on calibrated systems. It uses the full capacity of the ACE engine and can have up to 16000 adjustment points during calibration. The immense resolution used to simulate acoustic power is what makes simulation realistic and hardly distinguishable from original.

up to 16 000
adjustment points

Choose your calibration type

Three ways to improve sound

Instant accuracy

Calibration plugin with model average profiles

$ 69
  • +/- 3.0 dB
    Accuracy
  • Instant download
    Delivery time
  • Y AU, AAX Native, RTAS and VST
  • Y Model average calibration
  • N New headphones included
  • N Individual unit calibration
  • Y FR and THD calibration certificates

Pre-calibrated headphones

New headphones with individual calibration for ultimate accuracy

Starting from $ 168
  • +/- 0.9 dB
    Accuracy
  • 1 – 3 weeks
    Delivery time
  • Y AU, AAX Native, RTAS and VST
  • Y Model average calibration
  • Y New headphones included
  • Y Individual Unit calibration
  • Y FR and THD calibration certificates

Headphones upgrade

Individual calibration service for your existing headphones

Starting from $ 157
  • +/- 0.9 dB
    Accuracy
  • 2-4 days
    Delivery time
  • Y AU, AAX Native, RTAS and VST
  • N Model average calibration
  • N New headphones included
  • Y Individual unit calibration
  • Y FR and THD calibration certificates

Frequently asked questions

While we have the utmost respect for many headphone manufacturers about what they have given to the industry, yet our measurements show that there is no perfect headphone. Every product has its limitations that are usually dictated by their design (and sometimes the marketing department). There are many outstanding headphones currently on the market, yet there are none which wouldn’t benefit from our software. Some acoustic problems are extremely hard to overcome by physical design only; hence our software gives the headphone the help it needs to perform to its fullest potential.

Yes, that is our claim given that the same reference target is set for both headphones. This is of course subject to small differences imposed by the physical limits of the headphone and differences in headphone THD profiles.

All measurements and calibrations are done to ensure flat perceived frequency response at 83dB. This is one of the commonly used sound pressure levels in many studios.

Yes, you can get a 21-day free trial of model average headphone calibration plugin, if you have one of the headphones models that are eligible. Check it out and get free trial here link to free trial page.

Couldn’t find your answer?

Go to Support page