Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-22 Thread Daniel Mack
Hi Jeffrey, sorry for the late reply. On 08.11.2012 19:54, Jeffrey Barish wrote: On Wed 07 November 2012 10:01:14 Daniel Mack wrote: On 07.11.2012 00:54, Jeffrey Barish wrote: I guess that snd_usb_pcm_prepare is called by the core usb system to prepare the snd driver. Anyway,

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-22 Thread Daniel Mack
On 07.11.2012 18:05, Jeffrey Barish wrote: On Wed 07 November 2012 10:04:14 Daniel Mack wrote: On 07.11.2012 10:01, Daniel Mack wrote: On 07.11.2012 00:54, Jeffrey Barish wrote: I guess that snd_usb_pcm_prepare is called by the core usb system to prepare the snd driver. Anyway,

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-22 Thread Daniel Mack
On 22.11.2012 20:40, Daniel Mack wrote: On 07.11.2012 18:05, Jeffrey Barish wrote: On Wed 07 November 2012 10:04:14 Daniel Mack wrote: On 07.11.2012 10:01, Daniel Mack wrote: On 07.11.2012 00:54, Jeffrey Barish wrote: I guess that snd_usb_pcm_prepare is called by the core usb system to

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-08 Thread Jeffrey Barish
On Wed 07 November 2012 10:01:14 Daniel Mack wrote: On 07.11.2012 00:54, Jeffrey Barish wrote: I guess that snd_usb_pcm_prepare is called by the core usb system to prepare the snd driver. Anyway, snd_usb_pcm_prepare calls configure_endpoint with a substream. Then configure_endpoint calls

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-07 Thread Daniel Mack
On 07.11.2012 00:54, Jeffrey Barish wrote: I guess that snd_usb_pcm_prepare is called by the core usb system to prepare the snd driver. Anyway, snd_usb_pcm_prepare calls configure_endpoint with a substream. Then configure_endpoint calls snd_usb_endpoint_set_params with the data endpoint

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-07 Thread Daniel Mack
On 07.11.2012 10:01, Daniel Mack wrote: On 07.11.2012 00:54, Jeffrey Barish wrote: I guess that snd_usb_pcm_prepare is called by the core usb system to prepare the snd driver. Anyway, snd_usb_pcm_prepare calls configure_endpoint with a substream. Then configure_endpoint calls

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-07 Thread Jeffrey Barish
On Wed 07 November 2012 10:04:14 Daniel Mack wrote: On 07.11.2012 10:01, Daniel Mack wrote: On 07.11.2012 00:54, Jeffrey Barish wrote: I guess that snd_usb_pcm_prepare is called by the core usb system to prepare the snd driver. Anyway, snd_usb_pcm_prepare calls configure_endpoint with a

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-06 Thread Jeffrey Barish
On Tue 06 November 2012 01:12:42 Daniel Mack wrote: On 05.11.2012 23:29, Jeffrey Barish wrote: On Mon 05 November 2012 16:03:00 Daniel Mack wrote: Hi Jeff, On 05.11.2012 02:53, Jeffrey Barish wrote: On Sun 04 November 2012 11:39:48 Daniel Mack wrote: [cc alsa-devel] On

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-05 Thread Jeffrey Barish
On Sun 04 November 2012 11:39:48 Daniel Mack wrote: [cc alsa-devel] On 04.11.2012 02:25, Jeffrey Barish wrote: On Fri 26 October 2012 15:21:06 Jeffrey Barish wrote: On Fri 26 October 2012 21:47:05 Daniel Mack wrote: On 26.10.2012 21:43, Jeffrey Barish wrote: On Thu 25 October 2012

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-05 Thread Daniel Mack
Hi Jeff, On 05.11.2012 02:53, Jeffrey Barish wrote: On Sun 04 November 2012 11:39:48 Daniel Mack wrote: [cc alsa-devel] On 04.11.2012 02:25, Jeffrey Barish wrote: On Fri 26 October 2012 15:21:06 Jeffrey Barish wrote: On Fri 26 October 2012 21:47:05 Daniel Mack wrote: On 26.10.2012 21:43,

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-05 Thread Daniel Mack
On 05.11.2012 23:29, Jeffrey Barish wrote: On Mon 05 November 2012 16:03:00 Daniel Mack wrote: Hi Jeff, On 05.11.2012 02:53, Jeffrey Barish wrote: On Sun 04 November 2012 11:39:48 Daniel Mack wrote: [cc alsa-devel] On 04.11.2012 02:25, Jeffrey Barish wrote: On Fri 26 October 2012 15:21:06

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-04 Thread Daniel Mack
[cc alsa-devel] On 04.11.2012 02:25, Jeffrey Barish wrote: On Fri 26 October 2012 15:21:06 Jeffrey Barish wrote: On Fri 26 October 2012 21:47:05 Daniel Mack wrote: On 26.10.2012 21:43, Jeffrey Barish wrote: On Thu 25 October 2012 19:10:45 Daniel Mack wrote: On 25.10.2012 17:18, Jeffrey

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-04 Thread Jeffrey Barish
On Sun 04 November 2012 11:39:48 Daniel Mack wrote: [cc alsa-devel] On 04.11.2012 02:25, Jeffrey Barish wrote: On Fri 26 October 2012 15:21:06 Jeffrey Barish wrote: On Fri 26 October 2012 21:47:05 Daniel Mack wrote: On 26.10.2012 21:43, Jeffrey Barish wrote: On Thu 25 October 2012

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-03 Thread Jeffrey Barish
On Fri 26 October 2012 15:21:06 Jeffrey Barish wrote: On Fri 26 October 2012 21:47:05 Daniel Mack wrote: On 26.10.2012 21:43, Jeffrey Barish wrote: On Thu 25 October 2012 19:10:45 Daniel Mack wrote: On 25.10.2012 17:18, Jeffrey Barish wrote: I found something in the snd_usb_audio code

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-11-03 Thread Jeffrey Barish
On Fri 26 October 2012 15:21:06 Jeffrey Barish wrote: On Fri 26 October 2012 21:47:05 Daniel Mack wrote: On 26.10.2012 21:43, Jeffrey Barish wrote: On Thu 25 October 2012 19:10:45 Daniel Mack wrote: On 25.10.2012 17:18, Jeffrey Barish wrote: I found something in the snd_usb_audio code

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-10-31 Thread Jeffrey Barish
On Fri 26 October 2012 15:21:06 Jeffrey Barish wrote: On Fri 26 October 2012 21:47:05 Daniel Mack wrote: On 26.10.2012 21:43, Jeffrey Barish wrote: On Thu 25 October 2012 19:10:45 Daniel Mack wrote: On 25.10.2012 17:18, Jeffrey Barish wrote: I found something in the snd_usb_audio code

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-10-26 Thread Jeffrey Barish
On Thu 25 October 2012 19:10:45 Daniel Mack wrote: On 25.10.2012 17:18, Jeffrey Barish wrote: I found something in the snd_usb_audio code (in endpoint.c) that could explain one of the problems I have observed (the ticks). I would normally test my theory by modifying the code. In this case,

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-10-26 Thread Daniel Mack
On 26.10.2012 21:43, Jeffrey Barish wrote: On Thu 25 October 2012 19:10:45 Daniel Mack wrote: On 25.10.2012 17:18, Jeffrey Barish wrote: I found something in the snd_usb_audio code (in endpoint.c) that could explain one of the problems I have observed (the ticks). I would normally test my

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-10-26 Thread Jeffrey Barish
On Fri 26 October 2012 21:47:05 Daniel Mack wrote: On 26.10.2012 21:43, Jeffrey Barish wrote: On Thu 25 October 2012 19:10:45 Daniel Mack wrote: On 25.10.2012 17:18, Jeffrey Barish wrote: I found something in the snd_usb_audio code (in endpoint.c) that could explain one of the problems I

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-10-26 Thread Jeffrey Barish
On Fri 26 October 2012 21:47:05 Daniel Mack wrote: On 26.10.2012 21:43, Jeffrey Barish wrote: On Thu 25 October 2012 19:10:45 Daniel Mack wrote: On 25.10.2012 17:18, Jeffrey Barish wrote: I found something in the snd_usb_audio code (in endpoint.c) that could explain one of the problems I

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-10-25 Thread Jeffrey Barish
On Wed 17 October 2012 01:04:13 Daniel Mack wrote: On Oct 16, 2012 11:29 PM, Jeffrey Barish jeff_bar...@earthlink.net wrote: On Fri 28 September 2012 10:37:01 Daniel Mack wrote: On 28.09.2012 04:55, Jeffrey Barish wrote: On Fri 28 September 2012 03:06:22 Daniel Mack wrote: (adding back

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-10-25 Thread Daniel Mack
On 25.10.2012 17:18, Jeffrey Barish wrote: I found something in the snd_usb_audio code (in endpoint.c) that could explain one of the problems I have observed (the ticks). I would normally test my theory by modifying the code. In this case, I would like to stick in a print statement to see what

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-10-16 Thread Jeffrey Barish
On Fri 28 September 2012 10:37:01 Daniel Mack wrote: On 28.09.2012 04:55, Jeffrey Barish wrote: On Fri 28 September 2012 03:06:22 Daniel Mack wrote: (adding back the mailing list - please don't drop it in replies) Oops. My bad. On 28.09.2012 02:43, Jeffrey Barish wrote: On Fri 28

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-10-16 Thread Daniel Mack
On Oct 16, 2012 11:29 PM, Jeffrey Barish jeff_bar...@earthlink.net wrote: On Fri 28 September 2012 10:37:01 Daniel Mack wrote: On 28.09.2012 04:55, Jeffrey Barish wrote: On Fri 28 September 2012 03:06:22 Daniel Mack wrote: (adding back the mailing list - please don't drop it in replies)

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-09-28 Thread Daniel Mack
On 28.09.2012 04:55, Jeffrey Barish wrote: On Fri 28 September 2012 03:06:22 Daniel Mack wrote: (adding back the mailing list - please don't drop it in replies) Oops. My bad. On 28.09.2012 02:43, Jeffrey Barish wrote: On Fri 28 September 2012 02:02:05 you wrote: On 28.09.2012 01:56,

[Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-09-27 Thread Jeffrey Barish
I am using a USB DAC (HRT Music Streamer II) which operates in asynchronous mode. It works perfectly at sample rates up to 48 kHz. When I go to 88.2 or 96, it works perfectly sometimes. Most of the time I get ticks. When it starts playing without ticks, it will continue to play without

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-09-27 Thread Daniel Mack
On 28.09.2012 01:56, Jeffrey Barish wrote: I am using a USB DAC (HRT Music Streamer II) which operates in asynchronous mode. It works perfectly at sample rates up to 48 kHz. When I go to 88.2 or 96, it works perfectly sometimes. Most of the time I get ticks. When it starts playing without

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-09-27 Thread Daniel Mack
(adding back the mailing list - please don't drop it in replies) On 28.09.2012 02:43, Jeffrey Barish wrote: On Fri 28 September 2012 02:02:05 you wrote: On 28.09.2012 01:56, Jeffrey Barish wrote: I am using a USB DAC (HRT Music Streamer II) which operates in asynchronous mode. It works

Re: [Alsa-user] Ticks when playing to USB DAC at high sample rates

2012-09-27 Thread Jeffrey Barish
On Fri 28 September 2012 03:06:22 Daniel Mack wrote: (adding back the mailing list - please don't drop it in replies) Oops. My bad. On 28.09.2012 02:43, Jeffrey Barish wrote: On Fri 28 September 2012 02:02:05 you wrote: On 28.09.2012 01:56, Jeffrey Barish wrote: I am using a USB DAC