A800 Use Tips
by Will Shanks » Mon Dec 06, 2010 2:37 pm
Hi folks,
Will Shanks here, UA's Product Manager for plugins. I know it is rare for me to post here, but I thought with the release of the new Studer A800, some additional info might be useful beyond what is in the manual (although I highly recommend a thorough read of it). This product is different from anything we've done in the past, because it involves the emulation of a recording process, complete with calibration elements and operating levels (rather than just in/out processing). There are likely two customers for this product--those that have extensive experience with large format magnetic tape recording, and those who never had the benefit of working with tape, each group with perhaps their own questions. Fortunately, either customer will have no problem getting a great sound out of the A800 emulation and should be able to get a good grasp on what this processor is doing. But to maximize its potential, a clear understanding of the nature of this tool and a basic understanding of operational procedures will go a long way in ensuring the best results. Here are a few tips to getting started on the right foot:
How to best audition the Studer A800 plug-in:
The best way to "hear" the A800 is to use the plug-in like a multitrack machine. First, it is advisable to start your mix from scratch--disable/remove everything you've got on your tracks -- EQs, compressors, and especially any distortion or harmonic saturation processing. Then put the A800 as the first plug-in in your insert chain so that the Studer is the first process, similar to a tape to DAW transfer. This is your new starting point, so to speak. At this point, you may use the handy "Gang Controls" feature (more info below) for global auditioning of tape formula, tape speed emphasis EQ, etc. Then, slowly add back your dynamics and EQ tweaks, adjusting them in relation to the new baseline sound of the A800. You may find yourself using less EQ and compression, for example. While the A800 *can* be used on busses or the master fader, the biggest benefit is the cumulative effect of having the processing on all tracks that you want to sound like they were recorded to the Studer, each gain staged appropriately for that source as you would on the analog counterpart.
How to globally audition the various settings:
Once all desired instantiations of the A800 are in your session, open the secondary controls panel (Hint: click the Studer badge). Engage "Gang Controls". A red LED flashes to warn you that you are about to do something global TO ALL INSTANCES. Under the active Auto Cal state (which is on by default), the plug-in automatically calibrates correctly as you switch Speed, Formula and Emphasis EQ parameters! Now switch between Speeds, Formulas, Emphasis EQs and Cal Levels until you have the general sound you like. Each formula has a manufacturer's recommend operating level (+3 for 250, +6 for 456, +9 for 900 and GP9), but it was also common to go under a bit for greater headroom. Keeping these specific parameters the same across all instances will give the greatest cohesiveness like it came from the same session.
How to saturate the Studer A800 plug-in:
Generally, the Studer A800 was one of the "cleaner" tape machines. But the A800 can be pushed into increased nonlinear behavior that will yield euphonic results. In addition, the various tape formulas have various tape saturation characteristics and onsets of distortion. With over-biasing, you can deliberately change the distortion qualities of the A800 — and get a musical saturated tape sound (but keep in mind, you are now "out of calibration!). This is most popular on bass frequencies, such as kick or bass lines. Hit these ones hard (and just like the real hardware, splashy/peaky things like cymbals and tambourines should be hit minimally)! On the plug-in, turn the Bias control clockwise, as well as the Input, using Output as a pad. If it gets too dark, the HF Record EQ makes up for the high frequency rolloff of bias. Go gentle! This filter is potent. Both Bias and HF Record EQ effect the head to tape transfer process and thereby the nonlinear behavior of the A800 plug-in.
Comparative analysis:
It is natural to want to compare the results of the the UAD A800 to competing tape emulations or other processors, and we encourage that--but for a real apples to apples comparison, the only really comparable equivalent is the hardware A800 itself. However, if you feel compelled to compare the A800's behavior to other devices, I would recommend a basic signal analyzer to set relative distortion levels as a better starting point for listening evaluation. Again, keep in mind that the distortion characteristics will change drastically depending on several parameters of the plug-in.
Other interesting details and tips:
Following UA's philosophy of emulating one target device at time, we feel this approach also translates to tape machines, as they all have their own unique traits, feature sets and sound. As mentioned, the Studer A800 is a "cleaner" machine, or more specifically, it is very well-engineered so that its nonlinear behaviors are less prevalent comparing to older or less sophisticated designs. If used within its prescribed operating calibration and normal gain structuring, the beauty is in its cumulative effect and its subtlety. That said, the model will hold up very well in comparing to the hardware in any number of parameter combinations or extreme settings (even extremely out of calibration), in the typical UA fashion. It may be interesting to note that the diode circuit that protects the A800 record head electronics is modeled along with the rest of the electronic path, and at extreme input settings may cause what one may consider as "ugly" distortion, so bear this in mind under such use--however, even the abuse of the model can yield useful results on the right source material with the right control settings. As noted above, Bias and HF record EQ affect the nonlinear response of the record model. There are many details I could go into with the operation of this plug-in, but I hope a good read of the manual and these tips here get you started.