Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2019-01-12 Thread Pali Rohár
On Friday 14 September 2018 15:28:55 ValdikSS wrote: > I made a patch for Android LineageOS for Dual Channel support, and thinking > on adding this functionality to Pulseaudio. > https://review.lineageos.org/#/c/LineageOS/android_system_bt/+/228548/ I think this "SBC HD" should be possible to

Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-19 Thread Luiz Augusto von Dentz
Hi Arun, On Tue, Sep 18, 2018 at 9:02 PM, Arun Raghavan wrote: > On Wed, 12 Sep 2018, at 4:12 PM, Pali Rohár wrote: >> Hello! >> >> I would like to let you know that Serge from soundexpert.org did in last >> month some research on aptX and its quality. Detailed article is on the >> following

Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-18 Thread Arun Raghavan
On Wed, 12 Sep 2018, at 4:12 PM, Pali Rohár wrote: > Hello! > > I would like to let you know that Serge from soundexpert.org did in last > month some research on aptX and its quality. Detailed article is on the > following website, specially see parts added around "August 2018": > >

Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-18 Thread Tanu Kaskinen
On Fri, 2018-09-14 at 15:43 +0300, ValdikSS wrote: > On 13/09/2018 11:23, Tanu Kaskinen wrote: > > > > How is the bitrate calculated? I'd like to write a section on the > > Bluetooth wiki page[1] that explains the SBC codec with a table showing > > how the different parameters affect the bitrate.

Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-14 Thread ValdikSS
On 14/09/2018 16:42, Luiz Augusto von Dentz wrote: >> I propose to use 76 bitpool as a default maximum (454.8 kbps for Joint >> Stereo, 44.1 kHz, 8 subbands, 16 blocks). This bitpool is optimal for both >> EDR 2 mbit/s and EDR 3 mbit/s modes, since it packs audio frames with least >> wasted

Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-14 Thread Luiz Augusto von Dentz
Hi Valdik On Fri, Sep 14, 2018 at 3:39 PM, ValdikSS wrote: > On 12/09/2018 19:03, Luiz Augusto von Dentz wrote: >>> 2) Should we rather look at increasing quality of SBC codec in >>> pulseaudio? And if yes, how should be quality of SBC configured? Via >>> profiles? Or to invent some new protocol

Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-14 Thread ValdikSS
On 13/09/2018 11:23, Tanu Kaskinen wrote: > > How is the bitrate calculated? I'd like to write a section on the > Bluetooth wiki page[1] that explains the SBC codec with a table showing > how the different parameters affect the bitrate. > > [1] >

Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-14 Thread ValdikSS
On 12/09/2018 19:03, Luiz Augusto von Dentz wrote: >> 2) Should we rather look at increasing quality of SBC codec in >> pulseaudio? And if yes, how should be quality of SBC configured? Via >> profiles? Or to invent some new protocol options? Can we increase >> default SBC bitpool allocation? > >

Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-14 Thread ValdikSS
On 12/09/2018 13:42, Pali Rohár wrote: > Hello! > > I would like to let you know that Serge from soundexpert.org did in last > month some research on aptX and its quality. Detailed article is on the > following website, specially see parts added around "August 2018": > >

Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-13 Thread Luiz Augusto von Dentz
Hi Pali, On Thu, Sep 13, 2018 at 11:29 AM, Pali Rohár wrote: > On Thursday 13 September 2018 11:23:58 Tanu Kaskinen wrote: >> On Wed, 2018-09-12 at 19:03 +0300, Luiz Augusto von Dentz wrote: >> > On Wed, Sep 12, 2018 at 1:42 PM, Pali Rohár wrote: >> > > 1) What to do with aptX? It is really

Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-13 Thread Luiz Augusto von Dentz
Hi Tanu, On Thu, Sep 13, 2018 at 11:23 AM, Tanu Kaskinen wrote: > On Wed, 2018-09-12 at 19:03 +0300, Luiz Augusto von Dentz wrote: >> Hi Pali, >> >> On Wed, Sep 12, 2018 at 1:42 PM, Pali Rohár wrote: >> > Hello! >> > >> > I would like to let you know that Serge from soundexpert.org did in last

Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-13 Thread Pali Rohár
On Thursday 13 September 2018 11:23:58 Tanu Kaskinen wrote: > On Wed, 2018-09-12 at 19:03 +0300, Luiz Augusto von Dentz wrote: > > On Wed, Sep 12, 2018 at 1:42 PM, Pali Rohár wrote: > > > 1) What to do with aptX? It is really useful for users to have it in > > > Linux & pulseaudio? Because it

Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-13 Thread Pali Rohár
On Wednesday 12 September 2018 19:03:41 Luiz Augusto von Dentz wrote: > Hi Pali, > > On Wed, Sep 12, 2018 at 1:42 PM, Pali Rohár wrote: > > Hello! > > > > I would like to let you know that Serge from soundexpert.org did in last > > month some research on aptX and its quality. Detailed article is

Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-13 Thread Tanu Kaskinen
On Wed, 2018-09-12 at 19:03 +0300, Luiz Augusto von Dentz wrote: > Hi Pali, > > On Wed, Sep 12, 2018 at 1:42 PM, Pali Rohár wrote: > > Hello! > > > > I would like to let you know that Serge from soundexpert.org did in last > > month some research on aptX and its quality. Detailed article is on

Re: [pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-12 Thread Luiz Augusto von Dentz
Hi Pali, On Wed, Sep 12, 2018 at 1:42 PM, Pali Rohár wrote: > Hello! > > I would like to let you know that Serge from soundexpert.org did in last > month some research on aptX and its quality. Detailed article is on the > following website, specially see parts added around "August 2018": > >