Paul can correct me if I misremember, but our conversation in #ubuntu-bugs a couple/few weeks ago briefly was:
1) PA's configured sampling rate of 44100 Hz (in /etc/pulse/daemon.conf via the default-sample-rate parameter) does not always match the input file's, resulting in inaudible audio, which seems to be corroborated by Paul's and Saeed's comments in 5 and 14, respectively;
2) ALSA[-lib]'s plughw is always audible regardless of the input file's.
To summarise: I think we can eliminate ALSA[-lib] as the culprit, since plughw appears to Do The Right Thing. The next thing to test is whether PA's default-sample-rate should be changed to 48000.
Paul can correct me if I misremember, but our conversation in #ubuntu-bugs a couple/few weeks ago briefly was:
1) PA's configured sampling rate of 44100 Hz (in /etc/pulse/ daemon. conf via the default-sample-rate parameter) does not always match the input file's, resulting in inaudible audio, which seems to be corroborated by Paul's and Saeed's comments in 5 and 14, respectively;
2) ALSA[-lib]'s plughw is always audible regardless of the input file's.
To summarise: I think we can eliminate ALSA[-lib] as the culprit, since plughw appears to Do The Right Thing. The next thing to test is whether PA's default-sample-rate should be changed to 48000.