You may remember from your science classes in school that the speed of sound is a constant, but this statement is entirely dependent on the material through which sound is propagating. Different medium transmit sound at very different speeds. So, let’s look at some typical materials that most people would encounter in indoor live sound … leer más
Once upon a time, churches had no sound systems. The congregation sang their lyrics and sight read their vocal parts from hymnals. Fast forward to today; most churches are using current technology including sound systems, lighting, presentation software, cameras for live streaming and more. Unlike church from ages past, we must consider how to integrate … leer más
Subwoofers are great solutions to extend the low frequency performance of your PA system, and there are three aspects to consider carefully when setting up a subwoofer. In the following order. Subwoofer Placement If subwoofers are used in many portable and installed PA applications to enhance the overall listening and performance experience, their placement in … leer más
If you are familiar attending any type of live show, concert or performance using PA loudspeakers, you will most likely also agree that loudspeakers’ humming, hissing or buzzing noise can quickly ruin a performance. This article reviews each of the common causes of audible (and irritating) loudspeakers’ hum and hiss, and discusses effective strategies to … leer más
The history of the subwoofer is inextricably linked with the evolution of the full-range loudspeaker. In the mid-1950s, various manufacturers of hi-fi loudspeakers began to introduce compact, closed-box enclosures that featured long-throw woofers, and in the early 1970s a talented engineer working at Jensen, named James Novak, developed the equations describing a bass reflex (or … leer más
An auto mixer, or automatic microphone mixer, is a live sound-mixing tool that automatically reduces the volume level of a microphone’s audio signal when it is not used. This is particularly valuable when several microphones are open at the same time, reducing extraneous noise. In this article, we will describe how the Auto Mixer function … leer más
To start, let’s recall that the low frequency energy radiated from a conventional subwoofer is effectively omnidirectional below 200 Hz. This is because the directivity of a subwoofer is related to the ratio of its size to the length of the sound wave it produces. The length, or size, of the sound wave is inversely … leer más
Quizá más importante que la cobertura horizontal sea la cobertura vertical, para la que la elevación y la distancia son cruciales. Para lograr una cobertura de altavoces correcta es fundamental encontrar el equilibrio entre la distancia y el volumen del altavoz... leer más
Cada espacio presenta sus propios desafíos relacionados con la cobertura. Por ejemplo, una discoteca con el techo bajo nunca tendrá el espacio vertical suficiente para un sistema line array suspendido. Por el contrario, la ausencia de paredes en espacios al aire libre conlleva una serie de limitaciones relacionadas con el refuerzo de sonido... leer más
Hay varios factores que debemos considerar al colocar los altavoces para conseguir un sonido y rendimiento óptimos. Esta serie de cuatro partes tiene como objetivo hablar de los problemas que pueden surgir, y ofrecer consejos útiles y prácticos para lograr un sonido magnífico en cualquier espacio... leer más