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35a32c5
(Get the code!)
I'm the Mangler developer that first noticed the problem in the original ticket.
FWIW, something definitely changed between 9.04 and 9.10. The PA ALSA plugin used to deliver audio at a fairly low latency (low enough that the default worked for our needs). The newer version of PulseAudio increased this latency significantly (from about 0.1 seconds to about 2 seconds or so) in the simple API.
I don't know if it was intentional or not... it could very easily be a power saving measure to reduce CPU wakeups by the pulse daemon, but the result is horrible for ALSA apps that are expecting low latency.
I think there's two separate problems being described in this bug though. One is latency problems and the other is sound dropping (buffer problems). They're probably related, but are two different issues.