Make sure you change your PulseAudio settings.
By default, everything is converted to 44.1kHz 16-bit before sending to output device.
Extracted from my vanilla Ubuntu system:
$ pacmd
Welcome to PulseAudio! Use "help" for usage information.
>>> stat
Memory blocks currently allocated: 1, size: 63.9 KiB.
Memory blocks allocated during the whole lifetime: 28, size: 1.6 MiB.
Memory blocks imported from other processes: 0, size: 0 B.
Memory blocks exported to other processes: 0, size: 0 B.
Total sample cache size: 0 B.
Default sample spec: s16le 2ch 44100Hz
Default channel map: front-left,front-right
Default sink name: alsa_output.pci-0000_00_1b.0.analog-stereo
Default source name: alsa_input.pci-0000_00_1b.0.analog-stereo
Memory blocks of type POOL: 1 allocated/7 accumulated.
Memory blocks of type POOL_EXTERNAL: 0 allocated/0 accumulated.
Memory blocks of type APPENDED: 0 allocated/0 accumulated.
Memory blocks of type USER: 0 allocated/0 accumulated.
Memory blocks of type FIXED: 0 allocated/21 accumulated.
Memory blocks of type IMPORTED: 0 allocated/0 accumulated.
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Topic - To those of you who are listening to hi-rez audio on Ubuntu and derivatives - Christine Tham 15:17:00 11/29/10 (39)
- RE: To those of you who are listening to hi-rez audio on Ubuntu and derivatives - soundchekk 02:21:47 12/02/10 (1)
- Good post, and I agree entirely - Christine Tham 10:25:37 12/02/10 (0)
- Strange thread! - spindrifter 23:31:28 11/30/10 (8)
- RE: Great post! - Presto 14:04:39 12/01/10 (1)
- RE: Great post! - spindrifter 15:04:32 12/03/10 (0)
- RE: Strange thread! - Christine Tham 23:40:41 11/30/10 (5)
- Another advantage of Linux..... - spindrifter 23:59:48 11/30/10 (4)
- RE: Another advantage of Linux..... - Christine Tham 03:57:45 12/01/10 (2)
- CT has (yet again) mounted her high horse (boring)...... - spindrifter 12:54:24 12/01/10 (1)
- Not sure why you are getting so excited - Christine Tham 16:15:44 12/01/10 (0)
- RE: Another advantage of Linux..... - audioAl 03:18:11 12/01/10 (0)
- Update: PulseAudio currently does not support dynamically changing sample rate - Christine Tham 13:29:50 11/30/10 (11)
- RE: Update: PulseAudio currently does not support dynamically changing sample rate - John Swenson 20:11:42 11/30/10 (10)
- RE: Update: PulseAudio currently does not support dynamically changing sample rate - telackey 16:59:24 12/06/10 (0)
- Not that easy - Christine Tham 21:51:46 11/30/10 (8)
- RE: Not that easy - nycparamedic 18:50:45 12/01/10 (4)
- RE: Not that easy - Christine Tham 22:27:00 12/01/10 (2)
- RE: Not that easy - nycparamedic 07:20:27 12/02/10 (1)
- Yep - Christine Tham 10:17:25 12/02/10 (0)
- RE: Not that easy - nycparamedic 18:54:37 12/01/10 (0)
- Yes it is - John Swenson 12:55:16 12/01/10 (2)
- Not for a general purpose system - Christine Tham 16:24:51 12/01/10 (1)
- RE: Not for a general purpose system - telackey 17:11:13 12/06/10 (0)
- RE: To those of you who are listening to hi-rez audio on Ubuntu and derivatives - giulio 23:15:33 11/29/10 (15)
- It's even worse than that - Christine Tham 01:20:23 11/30/10 (14)
- RE: It's even worse than that - John Swenson 20:17:41 11/30/10 (13)
- RE: It's even worse than that - nycparamedic 18:39:43 12/01/10 (11)
- RE: It's even worse than that - soundchekk 00:46:26 12/02/10 (10)
- RE: It's even worse than that - nycparamedic 07:23:48 12/02/10 (9)
- RE: It's even worse than that - soundchekk 08:04:54 12/02/10 (8)
- RE: It's even worse than that - nycparamedic 17:18:35 12/02/10 (7)
- RE: It's even worse than that - soundchekk 23:04:11 12/02/10 (6)
- RE: It's even worse than that - nycparamedic 13:08:11 12/03/10 (5)
- Computer-derived audio is evolving.... - spindrifter 14:34:26 12/03/10 (4)
- RE: Computer-derived audio is evolving.... - nycparamedic 16:57:40 12/03/10 (3)
- Windows, Mac and Linux - mostly custom workstations....... - spindrifter 22:32:30 12/03/10 (2)
- RE: Windows, Mac and Linux - mostly custom workstations....... - nycparamedic 09:43:49 12/04/10 (1)
- Thanks for your response - spindrifter 13:37:37 12/04/10 (0)
- Not practical - Christine Tham 21:58:32 11/30/10 (0)