Stereo distribution of instruments

Stereo distribution of instruments and frequencies

A frequently asked topic is the distribution of instruments or frequencies in the mixdown and mastering and stereo image in compliance with Mono Compatibility. Often just bad samples are used here too much stereo information contain or rather provide unfavorable stereo information.

To determine whether everything is ok in the stereo image, we use a stereo field measuring device, including a goniometer or Correlation meter called. Here we can see if something is grossly wrong. Another tool for such measurements is a good metering (e.g. Izotope Insight or Pinguin Metering) and a plugin (e.g. BX Control) which enables us to do both Monitor the mono signal and the side signal separately. Almost every reasonable interface has at least one mono button for listening to the mono signal path.

These two plugins (BX Control or something similar and metering) we switch one after the other and can thus take a closer look at the frequency profile of the mid and side signals in metering.

Error in the stereo image

Very often the mistake is made of not properly low-cutting instrument tracks (sometimes with the exception of kick and bass), so that too much bass remains in the side signal. This can be seen quite quickly with the method described above. The problem here is that the kick and bass areas are in the Stereo mix sounds very indifferent.

In principle, however, I recommend to set a lowcut at 20hz on EVERY audio track. Small cattle also make crap and you will hear a noticeable change in total - as long as your acoustics and wiretapping allow this.

Bad kick and bass samples also create too much frequencies in the side signals. As every musician should know, no drum kit has 2 kick drums and no band has 2 bass players. Therefore, frequencies below 100 hz should always be mono. Otherwise you will have major problems on playback devices with only one loudspeaker, i.e. smartphone, laptop or tablet, as this area then simply disappears or loses its performance enormously.

Correct distribution in the stereo image

To do this, you can simply google 2 pictures. For one, a picture of one Drum set, and on the other hand, a picture of a classic orchestra line-up. So you don't risk bad criticism from the classical musicians and principle fanatics among us. 🙂

In general, it should be said that all instruments have the up to approx. 60% in the stereo image panned are still easy to locate in the center signal. Everything that goes beyond that will probably be difficult to locate in the middle. Which doesn't mean that you can't, can't, or shouldn't do this. Only with the lead instruments should be careful here. Either you put the lead instrument in the middle or alternatively you play, you duplicate your lead instrument and either pitch it up or down slightly and then distribute this in the stereo field of your choice and at your discretion. So at least you always have a center signal. You can decide for yourself whether this will bring your desired sound in individual cases. Personally, I haven't had any bad experiences with it. Of course, you can also just play a third or fifth above or below and then distribute it in the panorama. Certainly a very interesting story.

All in all, I would always do that in between Check center signal and also see in the analyzer whether your frequency curve shows the desired values. If so, deal with the side signal. Last but not least - with the complete stereo signal.

There are NO rules in the distribution of individual instruments and frequencies. Only the 2 guide values ​​I have described. Good is what sounds good.

You are welcome to post further questions in the comments below!

Think about stereo in the overall mix: Our tutorial shows you how panorama, mono compatibility, and balance interact throughout the entire mixing process. Mixing Guide in a structured process.

Create stereo width intentionally instead of just creating glitches.

Panorama is merely a tool for placing instruments within the stereo field. True, perceived sound... Width This effect often only arises through additional techniques. A frequently used approach is the Haas effect: You duplicate a track, delay one side by about 5 to 30 milliseconds, and pan both copies outwards. The ear perceives this as width, rather than as two separate sources. Important: Such tricks are particularly susceptible to mono problems because delayed copies partially cancel each other out during mono summation.

• Micro-Delay (Haas): Appears wide, but always double-check in mono.
• EQ panning: Slightly different EQ curves on the left and right create width without phase risk.
• Double instead of widening: Two real, recorded takes sound wider and more stable than an artificially spread signal.

Depth and front-back staggering as a second dimension

Stereo sound isn't just left and right, but also front and back. While pan and width describe the horizontal axis, you create depth with volume, reverb, and treble. Quieter, more reverberant signals with slightly attenuated treble move towards the rear. This creates a three-dimensional soundstage where not everything is confined to a single line.

In practical terms, this means: lead vocals and snare should be at the front and center, while pads and effects can be pushed back. If you keep everything equally loud and prominent, the elements will compete for the same space, and the stereo image will sound flat, no matter how wide you pan. Anyone wanting to build the entire dynamic range, from balance to depth, cleanly will find what they need in... Mixing service the appropriate structured framework.

Listening on different playback systems

A stereo setup that only works on your monitors is risky. What sounds wide and clear in the near field might collapse on a smartphone speaker or Bluetooth speakers. That's why a systematic cross-check is part of your workflow.

• Headphones: They mercilessly expose extreme panning and phase problems.
• Mono speaker / mobile phone: It reveals cancellations and disappearing bass frequencies.
• Car or kitchen radio: realistic everyday situation of many listeners.

If an element shifts significantly or becomes quieter depending on the device, this is a clear sign of a stereo or phase problem that you should resolve before exporting.

Preserve stereo distribution in mastering

Im mastering The stereo image isn't being reinvented, but rather preserved and fine-tuned. Mid/Side processing allows you to subtly boost the side frequencies to create more space, or attenuate them to strengthen the midrange. Such adjustments should remain subtle: drastically altering the width during mastering usually only masks problems already present in the mix.

A proven approach is to first check mono compatibility, then compare the tonal balance of the center and side channels, and only then adjust the overall width. This preserves the distribution established in the mix, instead of destroying it through crude stereo widening. You can then download the finished mix directly via the File upload Make available for further processing.

Typical width-killers in the mix

Some habits can disrupt a clean stereo image without it being immediately noticeable. Avoiding these mistakes will keep the stereo image stable and reliable.

• Stereo widening on the sum: This often breaks mono compatibility for the sake of seemingly greater width.
• Full stereo reverb on each channel: It blurs the location instead of creating depth.
• Tightly compressed low frequencies: cause bass to collapse on mono systems.
• Everything as wide as possible: If every element is placed on the very outside, there is no longer any contrast and the middle appears empty.