Bowed String Instruments: Viola

The history of the viola relates to the development of the other instruments within the violin family. These were first made in northern Italy between 1530 and 1550. These regions include cities such as Milan, Brescia, Cremona, and Venice. The work of illustrious...

M-S Recording Technique

The “Mid/Side”, or M-S recording technique, was first designed by EMI engineer Alan Blumlein. He invented the method in 1933 and used it for some of the first stereophonic recordings. The M-S microphone recording technique is commonly used in broadcasts,...

Solid-State Guitar Amplifier

Solid-state circuits found in guitar amplifiers are often based on a transistor or semiconductor. These amplifiers are in most cases cheaper to produce and more reliable than tube-based versions. They are much lighter and less fragile than them as well. Solid-state...

Thermoacoustic Speakers

What are Thermoacoustic speakers?   Thermoacoustic speakers are speakers that generate sound waves from temperature fluctuations. They rapidly heat and cool conducting materials. Unlike conventional voice-coil speakers, thermoacoustic speakers do not rely on...

Transparent Ionic Conduction Speaker

What is a Transparent Ionic Conduction Speaker?   A transparent ionic conduction speaker is a relatively new form of technology. In 2013, a research team from Harvard University introduced transparent ionic conduction speakers to the public. Jeong-Yun Sun and...