Pitch perfect: mobile makers, telcos drawn to hi-res audio

By Jeremy Wagstaff SINGAPORE (Reuters) - Mostly young, male audiophiles throng a Singapore hotel ballroom, intently assessing headphones, earbuds and in-ear monitors - priced from $50 to as much as $10,000. Alongside are banks of dedicated digital audio players (DAPs), with an entire wall of the expo showcasing the king of DAPs: iriver. Less than five years ago, the South Korean firm was staring at bankruptcy, its low-end MP3 players no match for Apple's iPod and the rise of the music-playing sm