Audio processing
Audio processing in broadcasting optimises the sound of radio and TV broadcasts prior to distribution. Techniques such as automatic gain control, compression, limiting and equalisation make the signal more consistent, clearer and suitable for FM, DAB+, streaming or TV.
In radio, it determines the loudness and character of the station; in television, it ensures consistent loudness management and dynamic control, so that the volume remains stable across programmes, adverts and sources. Modern broadcast processors continuously analyse the signal and automatically adjust parameters, often for multiple distribution channels simultaneously.
Audio processing solutions
Audio processing systems are available in various forms. The right solution depends on the type of broadcast, the distribution platform and the desired workflow. In practice, a distinction is often made between processing for radio broadcasts, loudness management for television, and systems that support multiple platforms simultaneously.
Radio audio processors
Radio audio processors are designed to create a consistent and recognisable sound for radio stations. By using techniques such as multiband compression, automatic gain control and limiting, the audio signal remains stable and clearly audible, even when different programmes or audio sources are used.
Many modern systems can generate multiple outputs from a single processor. This allows a radio station, for example, to use separate processing profiles for FM broadcasts, digital radio and online streaming, whilst the core of the audio signal remains the same.
TV loudness control
For television broadcasts, the focus is usually on loudness management and consistency. International standards such as EBU R128 specify the maximum audio levels permitted in television programmes and adverts. Audio processing systems ensure that these values are automatically monitored and corrected.
In addition to loudness control, many systems include functions for dynamic range management, dialogue optimisation and the processing of various audio standards. This keeps the audio level stable, regardless of the type of programme or the source of the signal.
Multi-platform broadcast processing
Many broadcasters now distribute their audio across multiple platforms simultaneously. For example, a radio station may broadcast via FM, DAB+, streaming and podcasts, whilst a television organisation distributes different versions of a signal to broadcast, IPTV and online platforms.
Multi-platform processors make it possible to process a single audio signal and then generate multiple outputs with different processing settings. This allows each distribution platform to have its own optimal sound character, whilst the workflow remains centrally managed.
Software-based audio processing
In addition to hardware processors, software-based audio processing solutions are increasingly being used in modern broadcast environments. These run on standard servers or virtual machines and can be integrated into existing IT infrastructures or cloud environments.
Software processors offer the same core functionality as traditional hardware systems, such as automatic gain control, multiband compression and limiting, but with greater flexibility in configuration and scalability. This allows broadcasters to easily add extra processing instances for new channels, streaming platforms or temporary broadcasts without installing additional hardware.
This type of solution is often used in IP-based workflows, for example for online radio, streaming platforms or virtual playout systems. By deploying processing as a software service, the infrastructure can be managed more easily and adapted to changing distribution requirements.
How do you choose the right audio processing solution?
The right processor depends heavily on the type of broadcast and the distribution platform. Radio stations often look for processors that can create a distinctive sound and deliver sufficient loudness for FM or digital radio. In television production, the emphasis is more on precise loudness control and compliance with international broadcast standards.
Scalability is also a key factor. Some processors are designed for a single channel or studio, whilst other systems can handle multiple channels simultaneously and are suitable for larger broadcast environments. By clearly determining in advance how many distribution platforms need to be supported and which audio standards apply, it becomes easier to select the right solution.
Why choose Triple Audio?
We offer:Tailored advice and system design
Configuration of software licenses
Integration into existing broadcast infrastructure
Installation and support
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At Triple Audio, we help organisations choose the right configuration. We advise on the best solutions for your workflow, propose a scalable setup and ensure a smooth implementation; we support you at every step of the process.
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