*This article is a Japanese translation by Macnica of a blog written by an engineer at DSP Concepts.

DSP Concepts of Audio Weaver is a low-code, hardware-agnostic audio platform that streamlines the development of audio features for a wide range of products.

PC By utilizing a host application based on the HDMI input for product design and combining it with the audio processing engine embedded in the target hardware, Audio Weaver reduces risk and complexity at every stage of the development workflow, from prototype to production. Audio Weaver allows developers to tune and debug their layouts before deploying them.

Audio Weaver There are modules 550 It contains over 100 signal processing blocks. The functionality of the modules ranges from simple filtering to data type conversion, advanced audio mixing and distribution, and even machine learning and dedicated third-party IP It ranges widely. Audio Weaver Drag & The drop environment lets you build and customize advanced audio signal chains: modules can be added, removed and rearranged with just a few clicks, just like a circuit design.

To demonstrate the many modules available, 1 One AGC Core We will explain about:

* Provided by DSP Conecpts

AGC (Automatic Gain Control) Core is a dynamics processor that automatically adjusts the gain of the input signal to maintain a user-defined target RMS output level. In addition to the target level, you can also set the maximum amplification/attenuation for AGC Core to operate within a user-defined gain range, as well as adjust the slew rate of the automatic gain adjustment.

The AGC Core module can be used to smooth out level changes in the input signal, or as a safety stage before the output to ensure the signal stays within the nominal range without excessive signal level that would clip the output, or insufficient signal level that would degrade the signal-to-noise ratio.

One common method of automatic gain control is to use an AGC Core module in series with a Limiter Core module: in this arrangement, the AGC Core maintains a constant RMS level over time, and the Limiter Core applies quick gain reduction to transients or other rapidly changing material that exceed the Limiter threshold.

AGC Core is just one of hundreds of modules available in Audio Weaver. In addition to standard modules like AGC Core, Audio Weaver also offers more complex and powerful modules that accelerate audio development for high performance audio features such as immersive 3D audio rendering, multi-channel acoustic echo cancellation, and more.