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": > >

[pulseaudio-discuss] Bluetooth A2DP aptX codec quality

2018-09-12 Thread Pali Rohár
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": http://soundexpert.org/news/-/blogs/audio-quality-of-bluetooth-aptx