Motorola VA76R ユーザーズマニュアル

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Sound 
 
W760r/VA76r Media Guide 
Page 21   
 
Table 17 Sound formats 
Type 
Description 
AAC 
Short for Advanced Audio Encoding (.aac, .adcs, .adif), one of the audio compression 
formats defined in the MPEG-2 standard. AAC boosts higher quality audio reproduction 
than MP3 and requires 30% less data to do so. 
AMR-NB 
AMR-WB 
Adaptive Multi Rate offers a wide range of data rates. The philosophy behind AMR is to 
lower the data rate as the interference increases to enable better error correction. 
iMelody 
iMelody is the Infrared Data Association (IrDA) standard for the textual representation of a 
ring tone that can be used to transfer melodies between devices.   
MIDI 
The W760R/VA76R handset is MIDI 1.0 compliant (.mid, .midi, .mmf, .smf), and supports 
any data format described in The Complete MIDI 1.0 Detailed Specification, including: 
- MIDI, Type 0 
- MIDI, Type 1  
Scalable Polyphonic MIDI (SP-MIDI) 
PCM 
Pulse Coding Modulation, a digital representation of an analog signal. 
MP3 
The MP3 format (.mp3) provides the coding of audio for digital storage. 
Real Audio 
Real Audio (.ra, .rm) is a compressed format suitable for streaming over the internet. 
WAV 
Format for storing files (.wav). Linear pcm 8-bit and 16-bit, CCITT A-law and U-law. 
WMA 
Windows Media Audio. 
 
 
Table 18 shows the bit rate, sampling rate, and stereo/mono capabilities for each supported format.