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While there can be hundreds of audio measurements that are appropriate for any particular device, there are some essential audio measurements that are relevant to nearly all audio devices. Our video series of the Six Basic Audio Measurements can help you to demystify some of the terms and concepts that are specific to the audio field.
The AP Applied series goes into depth on the challenges of testing certain audio device classes and discusses new technologies available to improve test times. Where appropriate, sample test files and other resources are included.
AP Applied: APx Automation with LabVIEW
AP Applied: Calculating ROI in Audio Production Test
AP Applied: Digital Protocol Analysis
AP Applied: Dolby and dts Compliance Testing
AP Applied: Serial Digital Measurements
AP Applied: Ultra-High Bandwidth Analysis
Chip-level converter testing requires an interface with extensive flexibility to cover a wide variety of logic levels, data formats, and clock settings...
Fully characterizing the audio performance of these devices requires an involved series of tests in both the analog and digital domains...
The electrical quality of a digital audio signal traveling from one piece of equipment to another isn't often thought about until a failure occurs...
Digital protocol analysis is essential for any designer of modern digital audio equipment. Compared to earlier protocols such as S/PDIF...
The fundamental challenge to testing disc players is the lack of an input for the analyzer's test signals. The solution is to put test tones on disc...
Every device that bears a Dolby or dts logo is required to go through a compliance test process to insure that it meets Dolby and dts' requirements...
HDMI is rapidly becoming the standard for consumer audio/video interconnectivity. Testing HDMI devices raises some unique challenges for an audio engineer...
Speaker testing can be challenging, in part due to the need to prevent extraneous noises and reflections from affecting test results...
Mixing consoles present their own challenges—hundreds of knobs and settings, analog and digital inputs and outputs, and a multitude of channels...
With tens of millions of units sold every year, testing the quality of consumer MP3 devices is vital. Consumers' perspective of your brand can be badly damaged from sporadic quality...
PC audio systems are in many ways similar to portable digital audio recorders in function and testing requirements, but sometimes present special challenges ...
Class D, or switch-mode power amplifiers, are rapidly replacing traditional linear power amplifiers in the marketplace...
Power amplifiers range greatly in size and form, from headphone drivers to large professional power amps for stadiums...
The production environment has special requirements for audio testing. These include speed, automation, and connectivity...
A modern receiver is actually a complex switching device with a myriad of audio and video inputs and outputs, both analog and digital...
