White Paper Z300
Rich musical ringtones – 32 voices
The human ear can perceive sounds from approxi- mately 20 Hz up to 20 kHz. In most GSM mobile phones, the speech sound range is from 300 Hz to 3400 Hz, which is good enough for speaking, but quite poor for music. The Z300 can handle up to more than 20 kHz, which means excellent sound quality.
The Z300 has a dedicated speaker for ringtones and sounds, to ensure the best possible sound quality. This speaker is situated on the back of the phone, ensuring that no discomfort is felt if a sec- ond call is received during an ongoing call.
The quality of the sound heard from the speakers depends on many different things, for example on the synthesizer, the amplifier, or the speakers. An important factor for sound quality is the number of voices. The human ear cannot separate each voice if the number of voices increases above 16 or so, because then the voices merge together. But the nuances in music increase, and the music is expe- rienced as more sophisticated if the number of voices increases. Many modern sound modules in synthesizers used by musicians have 16, 24 or 32 note polyphony. The number of voices used in the Z300 is 32, which gives rich musical ringtones.
25 | October 2005 |
