Sony Ericsson Z300 manual Polyphonic ringtones, Protocol

White Paper Z300

Unified messaging

The user typically receives a short message notify- ing them that they have a new message in their uni- fied messaging box, with icons or formatted text further enhancing the message.

Ringtones

Downloading ringtones from the Internet.

News & commercials

World news illustrated, sports scores and news headlines, finance and stock market news with dia- grams and tickers, commercial product promo- tions, weather reports with maps, tunes from TV commercials as ringtones.

Info & entertainment

Ringtones, e-greetings, football club logo, joke-of- the-day illustrated by pictures or sound, horo- scopes, movie-related animation or theme song,

TV show promotions, music artist promotions, lot- tery results, food and drink pictures and recipes, mood-related pictures.

Corporate

Flight schedules, pre-installed corporate logos, map snippets and travel info, company branded icons and ring tones, corporate e-mail notifications, affinity programmes where companies notify cus- tomers of product updates, banks notifying cus- tomers about new services and interest rates, call centres providing answers to questions about a product, vehicle positioning combining EMS with Global Positioning System (GPS) position informa- tion, job dispatch with delivery addresses for sales or courier package delivery, using EMS in a retail environment for credit card authorization, remote monitoring of machines for service and mainte- nance purposes.

Polyphonic ringtones

The Z300 uses the new and improved Oki chip for superior sound quality. The reason for changing from the Yamaha chip to the Oki chip was based on sound quality as opposed to the number of availa- ble voices.

Although Yamaha offers 40 voices only eight are based on wavetable or real music sounds. The remaining 32 voices are all FM generated, which means modulated tone generators. This influences the sound quality making it synthetic or toy-like. Treble instruments sound more like modulated

noise. It also makes finding suitable content diffi- cult in terms of matching the sound of other prod- ucts.

The Oki chip bases its 32 voices on real music sounds from a wavetable (originally from Casio Musical Instruments). Consequently, the sound from the Oki chip is much more natural and musi- cal. We have used Oki chips in a number of phones with good results (T30, T310, T610, T630, Z600 etc).

Protocol

The Z300 has a hardware synthesizer chip, built into the mobile phone. The software controls the MIDI files, and makes sure they fit into the hard- ware chip. It is possible to modify the dynamics of the sound.

The Z300 supports the MIDI 1.0 detailed specifica- tion. Please visit www.midi.com for more informa- tion.

24 October 2005