Chapter 6: External Triggering

ABOUT TRIGGER PARAMETERS

The DM5 now offers five user controllable trigger parameters. These are:

•VCrv. (Velocity Curve). This represents the velocity curve, or the sensitivity of the trigger input. There are eight separate curve tables, 0 through 7. Using these settings it is possible to adjust the DM5’s triggers to accompany a wide variety of playing styles, and to help compensate for sensitivity variances between different brands of drum pads and triggers.

The lower the setting, the less sensitive the velocity curve and the higher the setting, the more sensitive. For example, a pad using a setting of 7 will reach a MIDI velocity of 127 with just a moderate strike. For a pad whose velocity curve setting is 1, only a very hard hit would generate such a velocity.

For average type of play (striking pads with velocities ranging from very soft to very hard) the default setting of 4 is ideal in achieving the full range of sensitivity which corresponds to MIDI velocities of 1 through 127.

Note: Curve 0 is named “Unassigned”. The function of this curve is explained fully in the section entitled “Velocity Curve” on page 44.

•Xtalk. (Crosstalk). Sometimes hitting one pad will cause a nearby pad to false trigger or “crosstalk”. This is generally due to stand vibrations which can affect the other pads. These vibrations send signals to the nearby pads which can cause false triggering. The Xtalk adjustment acts as a suppression control.

A higher value adjustment equals greater suppression of the signal, a lower value equals less suppression. Therefore, the higher the value setting, the less likely the nearby pad (or drum) will trigger from stand or head vibrations.

This is how it works:

First, you strike a pad and the DM5 triggers its sound. Shortly after this hit the DM5 receives a secondary, “softer” signal from a nearby pad. Before the DM5 will play this softer signal, it will scan the other inputs to determine whether this was a legitimate hit, or simply a vibration from a stand or head.

It does this by comparing the level of this soft signal with the threshold level set in the Xtalk parameter. If this secondary signal level is greater than the allowable threshold level, the DM5 will trigger its sound. If the signal is less than the allowable threshold level, the DM5 will ignore it.

By adjusting the crosstalk level to a higher value, you set a higher threshold for the signal to exceed, and reduce the ability of a pad (drum) to crosstalk. The following chart shows a scenario with a properly adjusted Xtalk level.

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DM5 Reference Manual

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Alesis DM5 manual About Trigger Parameters
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DM5 specifications

The Alesis DM5 is a renowned drum machine and percussion synthesizer that has garnered acclaim for its versatile features and high-quality sound. Embracing both the beginner and professional musician, the DM5 serves as an ideal platform for creating drum tracks, enhancing live performances, and adding depth to music productions.

At the heart of the DM5 is its comprehensive sound engine, which boasts a library of over 1,000 pre-recorded samples. These samples encompass a diverse range of instruments, from acoustic drums to electronic beats, allowing users to explore various music genres seamlessly. The DM5 features 25 of the most popular drum and percussion sounds that can be played via a MIDI controller or the built-in pads. This wide selection provides musicians with the flexibility to craft unique rhythms and textures.

An essential aspect of the DM5 is its user-friendly interface. The backlit LCD screen enables easy navigation through the vast array of features and settings. Users can quickly select sounds, adjust parameters, and create grooves with intuitive controls. The built-in sequencer is another standout feature, allowing musicians to record and edit patterns with precision. It supports up to 99 preset songs, enabling easy recall of favorite patterns for live gigs.

The DM5 also includes MIDI capabilities, facilitating seamless integration with other music production equipment. Users can connect external MIDI devices, triggering sounds directly from their keyboards or controllers. This interconnectedness promotes a fluid workflow in studio and live environments.

Furthermore, the DM5 offers a variety of built-in effects, such as delay and reverb, which enhance the overall sound. These effects provide additional depth and richness to drum tracks, ensuring that the final output remains polished and dynamic. The unit also supports audio outputs for connecting to mixers or amplifiers, making it suitable for both studio recordings and live performances.

In summary, the Alesis DM5 stands out as a powerful drum machine and percussion synthesizer. With its extensive sound library, user-friendly interface, integrated sequencer, MIDI capabilities, and built-in effects, it provides musicians with the tools to create and perform with ease. Whether in a home studio or on stage, the DM5 remains a versatile choice for anyone looking to explore the world of drum programming and music production.
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