Digital pioneers
DIGITALIZATION OF THE AUDIO INDUSTRY
Finding content created exclusively through a fully analog process is quite rare nowadays. Most sound engineers, mixers or creators now use CAM (Computed Assisted Music) or a digital console to create their content, allowing for easy editing and distribution through multiple mediums: CD, Blu Ray, streaming…This is all based on the digital LPCM format.
At home, your system will have access to this LPCM content and convert it to analog using DAC (Digital to Analog converters) so you can experience it through your speakers. In an audio chain, it’s not uncommon to have multiple devices, some of which perform tasks that were traditionally carried out in the digital realm, necessitating a transition from analog to digital again via Analog to Digital Converters (ADC). This multi-step conversion process can potentially compromise sound quality, introducing issues like noise. Consequently, it’s generally preferable to maintain a digital signal until the final stage in the speaker chain. Achieving this involves employing methods to transport the digital stream between devices, with various protocols available, including point-to-point and network-based solutions known as Audio over IP.
To read an in-depth article about digitalization of the audio industry, click here.
AES/EBU
At StormAudio, from the very first day we have embedded one of the most used digital transport formats: the AES/EBU. This format allows for carrying two channels of audio (LPCM, 24-bit / 192 kHz) with no degradation over long distances with a balanced link. Being a point-to-point connection, the signal routing is inextricably linked to the physical connection.
The AES/EBU interface is designed to support 16-channel input and 32-channel output, facilitated by the selection of optional modules available in StormAudio’s catalog. This versatility allows for various applications, ranging from interfacing with standard DCI systems (theatrical installations using DCP playback) to retrieve up to 16 channels, to systems where direct interface with digital amplifiers or speakers is required, providing up to 32 channels.
AoIP
In recent years, Audio over Internet Protocol (AoIP) has brought about a significant transformation in audio distribution. It became the obvious solution to the limitations and high costs of traditional point-to-point distribution systems.
Recognizing the growing demand for a highly adaptable AoIP processor in the industry, StormAudio undertook a thorough research endeavor to identify a suitable AES67 solution. This effort aimed to integrate AES67 into the existing platform, offering optimal flexibility for both installers and customers. The result of this innovation was the introduction of a new optional module bringing 32-channel input and output. With a totally asynchronous implementation, the option supports multiple sampling rates and can work as Master or Slave, depending on the network configuration.
This module is at the heart of the ISP Evo, introduced in 2023. Embodying StormAudio’s proprietary modular platform, it offers the choice between a 20- or 32- channel configuration on AES/EBU or AoIP networks. This product truly revolutionized the home theater market and received a 2024 CES Innovation Honoree award.
