Previously a basic record/play system using a hard drive was considered. This relied on a table linking time codes in the recording with physical addresses so that the drive would access audio data blocks in the right sequence slightly ahead of when they were needed. In that way a time base corrector could present the samples in an unbroken sequence at the correct sampling rate to a DAC. The mechanical timescale of a legacy medium such as tape or film has been replaced by a logical timescale.
The launch of new low orbit satellites for global network coverage will have a significant impact on remote live streaming for broadcasters and webcasters. With the likes of Elon Musk’s SpaceX, Amazon’s Kuiper, or one of the other vendors such as Oneweb vying for vertical space, the outlook for remote communications has never looked more open for change.
To get the best out of a microphone it is important to understand how it differs from the human ear.
The random-access characteristic of the disk drive made it attractive for audio editing purposes and when drive prices fell as computers became popular the attraction was even stronger.
Public internet-based remote TV production adds new critical monitoring points to avoid digital cliffs.
Part 1 of this series described how network-side QoE (Quality of Experience) measurement is fundamental to proactively assuring the quality of OTT services. At its core, the network-side can be an early warning system for QoS, which in turn correlates to actual QoE performance. This article considers the two types of network monitoring available to us, relative priorities for the points of measurement, and how the video platforms contributing to OTT services are evolving to support OTT quality at scale.