Voxengo have released a new version of CurveEQ, their “WYSIWYG linear phase spline equalizer.” It lets you draw the EQ curve instead of having to use sliders, and it shows you the frequency spectrum of the input and output signal so you can fine-tune your sound. Version 2.3 has a redesigned interface and some stability and performance tweaks, but is otherwise pretty much the same as previous versions. It’s nor necessarily the only EQ you’ll need: “CurveEQ perfectly suits the needs of mastering, and in some cases CurveEQ is suitable for use as an in-track FX insert.”

It has a few other features that set it apart from a basic EQ. You can essentially copy and paste a frequency spectrum betweeen recordings — quite a nifty idea that would help you copy one track’s “sound” to another. They also emphasize the vintage processing possibilities of CurveEQ, and there’s a slightly mysterious feature called “GearMatch”, which you can read more about below.

The website contains details and specifications. They say: Voxengo CurveEQ implements SpectruMatch spectrum matching technology that allows you to perfectly transfer a spectrum’s slope from one recording to another. This allows you to `copy’ a frequency balance of existing mixes so that other mixes that are still in the works will sound better. This technology also greatly helps in music disc mastering, since using it allows you to easily lessen any dramatic differences in the area of frequency balance between various tracks.

GearMatch technology allows you to transfer impulse responses of high-end analog audio gear to your digital audio, while allowing you to adjust frequency response freely. This results in a great improvement of sonic qualities. With this technology, all your tracks will sound unbelievably professional and vintage.

CurveEQ has a Vintage Processor which allows you to polish your sounds. Just turn it on and you will get a great deal of presence effect. Also, CurveEQ includes a compressing saturator. When it is enabled, the processed sound gets an additional vintage feel. You can use the saturator to create professional sounding vocal, guitar and bass tracks. In addition, it can be used on almost any audio material, especially during the mastering process as a vintage loudness maximizer.