Introduction

When it comes to music production, having a reliable tool for analyzing and visualizing the frequency spectrum is essential. While your ears may be the ultimate judge, there are times when fatigue or studio limitations can affect your perception. This is where spectrum analyzers like Voxengo Span come in. In this article, we will explore the features and benefits of Voxengo Span, a free plugin that has become a go-to tool for electronic music producers.

Understanding Voxengo Span

Voxengo Span is a highly flexible and accurate spectrum analyzer that offers a wide range of customization options. It is a free tool that provides invaluable insights into the frequency content of your audio. Whether you're a beginner just starting your journey in music production or an experienced producer looking for a reliable analysis tool, Voxengo Span is a must-have in your arsenal.

Customizable Modes

One of the standout features of Voxengo Span is its flexible "mode" system. This allows you to customize the analyzer's preferences according to your specific needs. You have the ability to specify the Fourier block size in samples, adjust the FFT window overlap percentage, and even control the visual slope of the spectrum. This level of customization ensures that you can tailor Voxengo Span to your workflow and preferences.

Multi-Channel Analysis

Voxengo Span also supports multi-channel analysis, making it a powerful tool for analyzing complex audio mixes. You can set the display spectrums from two different channels or channel groups simultaneously, allowing you to compare and contrast the frequency content of different elements in your mix. This is particularly useful when you want to analyze the balance between different instruments or identify any frequency clashes.

Output Level Metering and K-System Metering

In addition to spectrum analysis, Voxengo Span offers output level metering with adjustable ballistics and integration time. This allows you to accurately monitor the levels of your audio and ensure that your mix stays within the desired dynamic range. Furthermore, Voxengo Span includes K-system metering, which is a standardized loudness metering system used in many professional studios. This feature enables you to calibrate your mix to industry standards and achieve optimal loudness levels.

Correlation Metering and Additional Statistics

Voxengo Span goes beyond just spectrum analysis and level metering. It also provides correlation metering, allowing you to assess the phase relationship between different audio channels. This is crucial in maintaining a coherent stereo image and avoiding phase cancellation issues. Additionally, Voxengo Span displays various metering statistics, including headroom estimation and clipping detection. These statistics give you valuable insight into the dynamics and overall quality of your mix.

Exploring Voxengo Span's Interface

Tabs and Settings

The Voxengo Span interface is intuitively designed, with the majority of the screen dedicated to the spectrum analysis graph. At the top, you'll find a line of tabs and settings that allow you to customize your experience with Voxengo Span. Clicking on the "?" mark provides detailed information about each part of the interface. The interface also includes a presets menu, which offers useful starting points for different analysis scenarios.

Routing and Analysis

One of the most useful functions of Voxengo Span is the "Routing" tab. This feature enables you to analyze specific groups of tracks separately and compare their waveforms in the same window. For example, you can analyze a group track independently from the kick drum and bassline, allowing you to make informed decisions about the frequency balance of your mix. The ability to customize routing and analyze different elements simultaneously sets Voxengo Span apart from other spectrum analyzers.

Additional Options and Functionality

Voxengo Span offers a range of additional options to enhance your analysis experience. The "Hold" button allows you to temporarily freeze spectrum values for visual comparison. You can also display the spectrum of individual channel groups, providing a more detailed view of specific elements in your mix. The "Underlay" feature is particularly impressive, allowing you to add an underlying spectrum from another channel group or plugin instance, providing even greater insight into your mix.

Advanced Spectrum Analysis

Voxengo Span provides various spectrum analysis modes to cater to different needs. The mode selector offers options such as Hi-Res and 96 kHz analysis, which are particularly useful for high-quality audio production. Additionally, Voxengo Span includes a "Spectrum Mode Editor" window, where you can fine-tune and customize the settings of the analysis to your liking. This level of control ensures that you can extract the maximum amount of information from your audio.

Metering Statistics

At the bottom of the interface, Voxengo Span offers a range of metering statistics to complement its spectrum analysis capabilities. You can monitor parameters such as "Max Crest Factor," "RMS," and "Clippings," providing a comprehensive overview of the dynamics and technical aspects of your mix. The metering mode can be easily adjusted, allowing you to select various standardized types such as DBFS and K. Additionally, Voxengo Span features an accurate correlation meter, ensuring that your stereo image remains intact.

Conclusion

Voxengo Span is undoubtedly one of the most powerful and versatile free plugins available for electronic music production. Its customizable modes, multi-channel analysis capabilities, and comprehensive metering statistics make it an essential tool for producers at any skill level. Whether you're analyzing the frequency balance of your mix, monitoring the levels of your audio, or assessing the phase relationship between different channels, Voxengo Span provides the necessary insights to make informed decisions. Incorporate this free plugin into your workflow and take your music production to new heights.

Voxengo Span