MIDI Functions

The MIDI IN and MIDI OUT terminals, located on the DD-55’s right side panel, offer broadened musical possibilities through use of MIDI. What is MIDI? What can you do with MIDI? And how can you use MIDI with the DD-55? Here are some answers to those questions...

What’s MIDI?

No doubt you have heard the terms “acoustic instrument” and “digital instrument.” In the world today, these are the two main categories of instruments.

Let’s consider an acoustic piano and a classical guitar as representative acoustic instruments. With the piano, you strike a key, and a hammer inside hits some strings and plays a note. With the guitar, you directly pluck a string and the note sounds.

But how does a digital instrument go about playing a note?

● Acoustic guitar note production

● Digital instrument note production

Sampling

Tone Generator

Sampling

Note

Note

 

(Electronic

 

 

circuit)

 

 

Playing

 

 

the pads

 

Pluck a string and the body reso- nates the sound.

Based on playing information from the pads and pedals, a sampling note stored in the tone genera- tor is played through the speakers.

As shown in the illustration above, in an electronic instrument the sampling note (previously recorded note) stored in the tone generator section (electronic circuit) is played based on information received from the pads and pedals. So then what is the information from the pads and pedals that becomes the basis for note production?

For example, let’s say you play a “C” quarter note using the grand piano sound on the keyboard. Unlike an acoustic instrument that puts out a resonated note, the electronic instrument puts out infor- mation from the keyboard such as with what voice, with which key, about how strong, when was it pressed and when was it released. Then each piece of information is changed into a number value and sent to the tone generator. Using these numbers as a basis, the tone generator plays the stored sampling note.

●Example of Keyboard Information

Voice number (with what voice)

01

(grand piano)

 

 

 

Note number (with which key)

60

(C3)

 

 

Note on (when was it pressed) and note off

Timing expressed numerically

(when was it released)

(quarter note)

 

 

Velocity (about how strong)

120 (strong)

 

 

 

21

Page 20 Page 22
Page 21
Image 21
Yamaha DD-55 owner manual Midi Functions, What’s MIDI?, Example of Keyboard Information
Page 20 Page 22

DD-55 specifications

The Yamaha DD-55 is an innovative digital drum kit designed for both aspiring drummers and experienced musicians. This versatile instrument combines the playability of traditional drums with advanced technology, paving the way for an engaging music-making experience.

At the heart of the DD-55 is a unique design that features 8 touch-sensitive drum pads, allowing for a dynamic and responsive playing experience. These pads enable drummers to produce a wide range of sounds, from crisp snares to deep bass drums, making it suitable for various music genres. The responsive nature of the pads means players can express themselves through subtle nuances in their playing, enhancing the overall performance.

The DD-55 comes with an extensive library of 254 percussion voices, providing drummers with an array of options to choose from. This diversity allows users to create unique beats and explore different soundscapes. Additionally, the kit includes 50 preset drum kits that can be easily altered to fit the needs of the musician, facilitating creative exploration without limits.

One of the standout features of the DD-55 is its built-in sequencer, which allows for the creation and playback of complex rhythms and patterns. This technology enables users to compose music efficiently and experiment with different arrangements. The device also includes 30 pre-programmed songs that serve as practice tracks, allowing drummers to jam along and improve their skills.

Integration with external devices is made simple with the AUX input, allowing users to connect smartphones or MP3 players and play along with their favorite tracks. Furthermore, the DD-55 is equipped with MIDI capabilities, which means it can be connected to other MIDI-compatible instruments and software for enhanced functionality in music production.

The Yamaha DD-55 is designed with portability in mind. Its compact and lightweight structure makes it an excellent choice for musicians on the go. The kit can be powered by both batteries and an AC adapter, allowing for flexibility in different playing environments, whether on stage or during a practice session at home.

In summary, the Yamaha DD-55 is a feature-rich digital drum kit that caters to a wide range of musical preferences. With its responsive pads, extensive sound library, built-in sequencer, and portability, the DD-55 stands out as a valuable tool for drummers looking to explore new horizons in their musical journey. Its combination of traditional drum feel and advanced technology makes it a worthwhile investment for anyone passionate about drumming.
Top Page Image Contents