We calibrate the Symphonova Stem Production system to respond with great sensitivity to the unique way that every musician plays their instrument. To enable calibration, each musician must record a set of calibration scales which is then registered on our site under their name.
To do that, the musician must record a series of scales in a wide dynamic range. In our experience, it should take a musician less than 10 minutes to record the complete series. The scores used for this process can be downloaded here for each instrument.
Once recorded, the calibration scales can be used in every subsequent recording session. The following caveats apply, however:
Once a musician’s series of calibration scales is created, it can be used in every subsequent project that the musician records. However, If the circumstances of the recording changes then there are likely to be variations in the microphones used, acoustics, positioning, engineering, etc.
To ensure a musician’s calibration scales are correctly implemented, when there is a change of circumstances every musician must record two additional short scales for calibration. The project session calibration scales are found here and should be recorded in a similar manner to the musician’s calibration scales.
The calibration scales can be recorded by a musician in their own home and then registered on our website at any time. Please see our Collaborators Page for full information.
It is important to bear the following advice in mind when recording a musician’s calibration scales.
The dynamic markings are ‘p’ and ‘f’. To understand how quiet and how loud ‘p’ and ‘f’ should be, please be guided by the following:
By ‘p’ dynamics we mean not the quietest possible dynamics (pp) but the one above it. And by ‘f’ we mean loud, but not the loudest (ff). In both cases of ‘p’ and ‘f’, it’s very important to keep even dynamics throughout the instrument’s tessitura. That is, avoid some of the notes being softer or louder, and choose a dynamic that allows the player to keep the same loudness even on difficult notes.
A calibration scale must be clean and accurate, but there is some flexibility in our system. If there are a few notes out of tune, were performed with an accent, or are simply difficult (for example, the very top notes of a wind instrument, in ‘p’), then there are two options to make things easier:
Calibration scales are included and required for Brass straight mute. These are for the player’s standard mute. Please remember that the series of scales created with the specific mute is unique to the player in combination with the specific instrument and specific mute.
It will be possible for Brass players to record calibration scales dedicated to as many different mutes as desiredIn future upgrades to the system.
Note: for any music using mute, we need a 2 x 11 note scale with the specific mute used in the project.
Record the calibration scales using the same strings as in a four string bass, adding a scale for the fifth string.