It is difficult to find information about smartphone audio input testing because the techniques are so uncommon and complicated. Since Allion has conducted audio testing for many years, we have accumulated a body of knowledge and practical experience in audio input testing, including testing of headphone input jacks and built-in microphones. In this article, we present our audio input test methods and some sample test results based on some recent test data.
Many people use smartphones to play music or record sounds. Due to the fast pace of technological change and fierce competition, consumers have high expectations of smartphone audio performance. Audio tests are usually subjective, but Allion applies objective laboratory methods to detect differences in smartphone audio quality.
You have probably heard the term the “Internet of Things”, or its abbreviation “IoT”, but what is it exactly? In recent years, high-tech experts have been declaring its imminent arrival and technology forecasters have been estimating its potential market value in the trillions of dollars. Despite all this, many people do not appreciate the importance of the IoT revolution. To bring greater clarity to this important issue, in this article, we address the following question: What direct impacts wi
Photo taking is a popular smartphone activity, as reflected in the rise of the selfie and apps like Instagram, and as a result, camera performance is important to users. As technology advances, camera module specifications steadily improve. At this point, image resolution and feature sets are comparable to those found in consumer-grade digital cameras.
SD memory cards are a compact storage medium for personal data and multimedia files (audio, images, and video). SD cards feature large storage capacity and fast data transmission speeds in a small form factor for use in a wide range of products. Driven by the trend for slimmer and lighter consumer electronics, the market for SD cards is growing fast. Typical applications include digital cameras, mobile phones, multimedia players, printers, computer systems, card readers, home entertainment equip
Seeing that the previous two rounds of audio quality testing failed to find any significant differences in performance based on capacitor type, Allion decided to investigate additional testing strategies. After some research, we found that some audio magazines mention a ‘whisper’ or ‘breathing’ sound, which inspired this third round of testing.
Thanks to the rapid adoption of mobile communication technology, smartphones are now central to our daily lives. At the same time, smartphone manufacturers are constantly seeking innovative ways to differentiate their products in a crowded global marketplace. As a result of this consumer demand and industry innovation, smartphone technology is constantly evolving with new and improved features, such as high-resolution cameras, enhanced touchscreens, and optimized audio. Since consumers are so mu
The PC industry is becoming saturated, so many motherboard companies are looking for new markets and high-quality audio market has become their new target. In the high-quality audio device market, new products gradually spread to consumers and related components and accessories appear.
In our first round of audio quality testing (see previous article), Allion used precision test instruments to measure the sound quality of a high-quality PC motherboard. The primary goal was to compare the audio performance with different capacitor types. We used standard audio test criteria commonly applied to laptops, limited testing to the audible frequency range (20 Hz-20 KHz), and only tested the most common audio sampling rates (44K and 48k). However, the test results for the first round o