In real systems the issue of sampling rate conversion arises frequently but fortunately there are plenty of solutions.
Successful microphones have been built working on a number of different principles. Those ideas will be looked at here.
It should constantly be borne in mind that although digital audio is a form of data, those data represent an audio waveform and there are therefore some constraints on what can and cannot be done to the data without causing audible impairment.
In this new series John Watkinson looks at all aspects of microphones to create a technical reference resource for professional broadcast audio engineers.
This is the second instalment of our extended article exploring the use of the 5GHz spectrum for Comms.
Gain control in digital audio is essentially a numerical model of the same process in the analog domain.
As broadcasters strive for more and more unique content, live events are growing in popularity. Consequently, productions are increasing in complexity resulting in an ever-expanding number of production staff all needing access to high quality communications. Wireless intercom systems are essential and provide the flexibility needed to host today’s highly coordinated events. But this ever-increasing demand is placing unprecedented pressure on the existing lower frequency solutions.
The advantages of digital audio for recording purposes are clear, but once in the digital domain, productions steps also need to be carried out. Recorders don’t care about the encoding method, which is instead optimized for production purposes.