The first CD based Walkman, the D-50 ( D-5 in some markets ), was initially launched in 1984.

Curtis C-46 Commando. Douglas DC-6. Beechcraft E-50, similar to the D-50. In 1957, the Distant Early Warning line was being constructed, bringing a boom to Reeve Aleutian.

In January 1959 a Beechcraft D-50 Twin Bonanza was purchased.

The D-50 was sold in 1963 and C-46 N1822M was purchased.

The D-50's capabilities could be modified through the addition 3rd-party products by Musitronics, most notably the M-EX which made the D-50 multitimbral ( the D-50 was bi-timbral ), as well as a chip that improved the D-50's response to incoming MIDI commands and a system for burning custom PCM cards with user samples for playback in the D-50.

The D-50 was the first affordable synthesizer to combine sample playback with digital synthesis, a process that Roland called Linear Arithmetic synthesis.

The Roland D-50 was awarded a TEC Award for outstanding technical achievement in musical technology in 1988.

Although the D-50 was among the first non-sampling machines to be able to produce sounds with sample-based characteristics, it was not long before many synthesizers on the market began using similar methods to create sounds.

D-70 was a sample playback instrument derived from U-20, though multitimbral, with more realistic and natural sounding samples, especially acoustic piano, but missing extensive D-50 sound synthesis tools.

There were even rumors that it was originally named U-50, but later changed to D-70 after huge D-50 success.

Each D-50 sound ( tone ) was made up of 2 " partials " with 2 tones, making a " patch ".

Not only the synthesis method was new ; D-50 was arguably the first commercial synthesizer to include digital effects such as chorus and reverb, adding to the characteristically bright, rich, lively and sometimes realistic sound, featured on countless records of the period.

It was also on the forefront of the change of the look of a typical keyboard player on stage: instead of being surrounded with multiple instruments, with more versatile instruments and the stronger adoption of the MIDI standard, they were starting to appear with only one or two keyboards, typically a D-50 with either Yamaha DX-7 or KORG M1.

The D-50 was introduced in 1987 as the popularity of the Yamaha DX7 was declining, resulting in the D-50 being the most popular synthesizer on the market until the introduction of the Korg M1 the following year.

The ESQ-1 has a distinct sound, although the machine itself was overshadowed by other keyboards of the eighties, mainly other digitals like the Yamaha DX7, Roland D-50 and Korg M1 to name a few.

Discman was the product name given to Sony's first portable CD player, the D-50, which was the first on the market in 1984, and adopted for Sony's entire portable CD player line.

The D-50 consists of an upper and a lower tone, both fully featured.

Some other D-50 presets live on in every machine that conforms to the General MIDI specification, including " Soundtrack " and " Atmosphere ".

Over the years, Lee's keyboards have featured synthesizers from Oberheim ( Eight-voice, OB-1, OB-X, OB-Xa ), PPG ( Wave 2. 2 and 2. 3 ), Roland ( Jupiter 8, D-50, XV-5080, and a Fantom X7 starting on the Snakes & Arrows Tour ), Moog ( Minimoog, Taurus bass pedals, Moog Little Phatty ), and Yamaha ( DX7, Yamaha KX76 ).

Korg expanded on the S & S ( sample and synthesis ) idea, initially implemented by Roland in D-50: instead of classic analog subtractive synthesis where simple analog waveforms ( square, triangle, saw, etc.

Roland later released a series of lower-priced keyboards and modules that allowed musicians who couldn't afford the relatively expensive flagship D-50 to have some of these sounds ( Roland D-10, D-20, D-5, MT-32 ) Roland also produced the 76-key, 6-octave D-70 ( 1990 ), although it has little resemblance to D-50, being named D-70 to rather capitalize on huge commercial success of D-50.

The D-50 produces a hybrid " analog / digital " sound: one can use traditional fat analog waveforms like saw and square ( digitally created on the fly unlike competing synths of the time that used PCM samples of waveforms, ala Korg DW-8000 ) together with PCM samples of actual acoustic instrument attack transients and famous analog synths of the past, filtered through full analog-style processing ( LFOs, TVFs, TVAs, ring modulator, effects, etc .).

The presets of the D-50, authored by Eric Persing and Adrian Scott, were well received by artists ' community, and most of them can be heard on numerous commercial albums of the late 80s.

In the case of the D-50, for sound synthesis, the use of PCM samples can be bypassed completely when using Synth Partials only as the basis for sound creation.

The D-50 retailed for only 49, 800 yen ($ 350 in 1984 ), approximately half the cost price of the CDP-101.

The Korg DW-8000 was not multitimbral and would therefore not fare well in the market that only two years later would produce both the Roland D-50 and MT-32 which used samples of real attack transients to create increased realism, whilst the MT32 also brought multitimbral facilities with relatively high quality effects.

In 1987, Roland released an important syntheizer: the D-50.

Texturally, the soundtrack is a mix of digital synthesizers ( Roland D-50 and Yamaha DX7-II, both of which could, by then, be tuned to the Pure-Minor, slendro, and pelog tuning scales ), Indonesian chromatic percussion ( jegog, etc.

More affordable sample-based synthesizers available for the masses with the introduction of the Roland D-50 and the Korg M1, which surfaced in the late eighties.

All internal voices can be edited and overwritten by the user, as with the Korg M1 and Roland D-50.

Hold Your Fire marked the first time that Geddy Lee used the Roland D-50 keyboard.

Outselling the Yamaha DX7 and Roland D-50, the M1 became the best-selling digital synthesizer of all time, which it remains today.

The Roland D-50 is a polyphonic 61-key synthesizer produced by Roland.

The external Roland PG-1000 Programmer could also be attached to the D-50 for more complex manipulation of sounds.

The engineers at Roland determined the most difficult component of a realistic instrument to simulate is the attack, so the D-50 included almost 100 sampled attacks in ROM.

These sustain samples gave many D-50 patches a lush and airy quality, particularly with its heavy use of choir, wind and string samples.

A special guard was posted at my end of the bridge to make sure I didn't cross, the ludicrousness of the situation being revealed fully in that everyone else -- men, women, and children, dogs, cats, horses, cars, trucks, baby carriages -- could cross Kehl bridge into Kehl without surveillance.

He was trembling, a strange feeling upon him, fully expecting some catastrophe to strike him dead on the spot.

No matter how devoted a man was, no matter how fully he gave his life to the Lord, he could never extinguish that one spark of pride that gave him definition as an individual.

One part of her audience was totally engaged, the connoisseur witnessing a peculiarly fine performance of some ancient classic, the other part, the guest of the connoisseur, attentive as one who must take an intelligent interest in that which he does not fully understand.

At this date, it seems probable that the name of Serge Prokofieff will appear in the archives of History, as an effective Traditionalist, who was fully aware of the lure and danger of experimentation, and used it as it served his purpose ; ;

While the method of interviewing a small number of companies was appealing because of the opportunity it might have furnished to probe fully the reasons and circumstances of a company's practices and opinions, it also involved the risk of paying undue attention to the unique and peculiar problems of just a few individual companies.

Some time later the missing part of the relic was found and the complete inscription, together with other new evidence, fully corroborated the ancient priest's information.

It was a step in the right direction, but it took an additional act passed in 1958 to establish fully the thriving systems of today.

He was never sure they fully took him in.

Yes, I had cried out that I knew she'd do it, but without my fully realizing it at the time, it was a cry of triumph for her, praise at her deliverance from pettiness and greed -- and guilt.

Apollo's cult was already fully established when written sources commenced, about 650 BCE.

This image of a fully mature " Venus rising from the sea " ( Venus Anadyomene ) was one of the iconic representations of Aphrodite, made famous in a much-admired painting by Apelles, now lost, but described in the Natural History of Pliny the Elder.

With the development of quantum mechanics, it was found that the orbiting electrons around a nucleus could not be fully described as particles, but needed to be explained by the wave-particle duality.

Unlike other hobbyist computers of its day, which were sold as kits, the Apple I was a fully assembled circuit board containing about 60 + chips.

After this deed he fled to Talmai, the king of Geshur () ( see also or ), his maternal grandfather, and it was not until three years later that he was fully reinstated in his father's favour and finally returned to Jerusalem.

Her son only venerated Ares and was fully devoted to war, neglecting love and marriage.

... Conservation work on the building was undertaken in 1935 and again in 1963 and 1964, and today it stands 28 metres high and fully restored.

However, Buddha said that the purity of his heart was so great that, " Should Ananda die without being fully liberated ; he would be king of the gods seven times because of the purity of his heart, or be king of the Indian subcontinent seven times.

The Franciscan missionary, William of Rubruck, in his work on Asian customs, declares that everything he had heard from Andrew on the subject was fully borne out by his own personal observations.

" It was more fully published in 1978 by political scientist Steven Brams and mathematician Peter Fishburn.

As William says, " he was a man of wisdom and discretion, fully competent to hold the reins of government in the kingdom.

After he sold his steel company in 1901, Carnegie was able to get fully involved into the acts for the peace cause, both financially and personally.

One of the roles of Ares that was sited in mainland Greece itself was in the founding myth of Thebes: Ares was the progenitor of the water-dragon slain by Cadmus, for the dragon's teeth were sown into the ground as if a crop and sprung up as the fully armored autochthonic Spartoi.