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Digital Tuning

With a limited budget and space not everybody can afford the acoustic grand piano. But if you consider your options, a digital piano can very well fill the gaps and work out to be a great substitute for the acoustic grand piano.

Apart from the sound quality that a digital piano offers, there are even greater benefits with one and many of us need the features associated with this digital instrument. That is why it has gradually developed as a popular choice for music lovers.

Initially, it was developed to be an alternative to the acoustic piano. However, the sound producing system it uses is different from the traditional pianos. This digital instrument is based on high quality samples to produce piano sounds.

On broad terms, the better the quality of the samples incorporated in the instrument the more expensive it becomes. An important consideration is the way keyboard touch & feels. For simplicity of playing the device, it needs to have keys, which should feel almost like real keys of an acoustic piano.

The better digital pianos come with graded hammer action which simply means that the keys are heavier on the bass side and get gradually lighter as you move to the right of the keyboard. This is similar to the way the keys feel on a typical acoustic piano.

However, some of them resemble more to a digital keyboard and are designed to be portable. With the lightweight design they can be easily moved around and adds great value as far as ease of mobility is concerned. One of the great advantages is that they come with slot to connect a headphone so that you can practice without disturbing others. With digital pianos there are no maintenance & tuning activities needed.

There are several benefits offered which are equally beneficial for pros and amateurs. We have summarized few of the advantages of having this digital instrument.
* Compared to conventional pianos, these are relatively inexpensive.
* Smaller and considerably lighter, they suit mobility.
* They do not require tuning.
* They usually create several different piano timbres.
* They are much more likely to incorporate a MIDI implementation.
* They may have additional features to assist in learning and composition.
* Most of them include headphone output.
* They often have a transposition feature.
* Digital pianos do not require the use of microphones, eliminating the problem of audio feedback in sound reinforcement, as well as simplifying the recording process.

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Article Source: ArticlesBase.com - How To Choose The Best Digital Piano

Digital Audio Broadcasting system was designed in the late 1980s. Its main purpose is to provide radio at CD-quality.  DAB is proposed by the British Broadcasting Corporation.  China ran a trial in Fo Shan city about this DAB.

Digital Audio Broadcasting is also known as Eureka 147. DAB is ETSI standard.It is High definition radio project.  It is a digital radio technology.

It is most popular in UK and European Countries. Updated version of DAB is released in 2007.Updated version is call as DAB+ But DAB sounds worse than FM.Main reason for bad sound quality is broadcasters using bit rate levels that are too low.

Digital Audio Broadcasting is a Single Frequency Network All transmitters send an unique signal.So tuning is done automatically. A 1.5 MHz for 10 services cover entire country using a single frequency network.  So it is 15-20 times more efficient.

Normal Audio has 24ms MP2 frames whereas DAB frames are 96ms. Uses of DAB:

Sound is CD quality
Multiplex

Dynamic Range Control

Digital Radio:

Digital Radio is the future radio. Switzerland is the first country which is developed this Digital Radio by 90% . It is well suited for radio receiving on the move in the outside. Main feature with this digital radio is when you switch NO it will automatically detect date,time and no.of available radio channels.

So no more tuning of different stations.  DAB has good reception quality.

Digital Radio has two standards:

DAB = digital Radio in MP2

DAB+ = digital radio in new MP4

Digital Audio Broadcasting system was designed in the late 1980s.
Its main purpose is to provide radio at CD-quality.  DAB is proposed by the British Broadcasting Corporation. China ran a trial in Fo Shan city about this DAB.

Digital Audio Broadcasting is also known as Eureka 147. DAB is ETSI standard.It is High definition radio project. It is a digital radio technology.