Too much loud music Kristian ( Regards Michael Knill
-----Original Message----- From: Kristian Kielhofner <k...@kriskinc.com> Reply-To: AstLinux List <astlinux-users@lists.sourceforge.net> Date: Monday, 17 April 2017 at 6:13 am To: AstLinux List <astlinux-users@lists.sourceforge.net> Subject: Re: [Astlinux-users] Opus Codec Support Hi Josh, The availability of Opus on an ATA is a little strange because virtually any analog POTS device you connect to it will undoubtedly have filters and/or other hardware limitations in place for the 300 - 3300Hz frequency range supported by the PSTN. To support frequencies beyond the usual ~3 KHz frequency range of the PSTN you need different audio hardware to support the increased frequency range represented in sample rates greater than 8KHz (8-48KHz being supported by the Opus codec itself). Polycom and other handset manufacturers that support "wideband audio" made very noticeable changes to the audio components (the speakers and microphones of the handsets, speakerphones, etc) used with their devices. Hardware like mobile devices, desktops, etc using Opus with Chrome/WebRTC/etc tend to best support frequency ranges up to 48KHz even though it's well beyond the "standard" 20-20,000Hz range of most audio components and human hearing. In short, it's unlikely you'll gain any noticeable improvement in audio quality by using Opus with an ATA and depending on the analog device itself you may actually have worse audio quality due to clipping and all kinds of other strange things that could happen when an analog device designed for the PSTN of the last 100 years is connected to something that can sample audio well beyond anything the audio hardware itself was designed for. Here's a fun site that tests the range your audio hardware can produce (and what your ears can hear): http://onlinetonegenerator.com/hearingtest.html I'm 33 years old and my hearing tops out at about 15 KHz but for now I'll make myself feel better by blaming my cheap computer speakers ;)! On Sun, Apr 16, 2017 at 2:51 PM, Josh <jma...@hotmail.com> wrote: > I had read that the Asterisk 13 config changes were likely to affect many > users, but that wasn't on my mind. Thanks for mentioning it! > > > Yeah, I'm not wild about the details of Opus either but it's the only way I > can use "HD" voice with the hardware I've got, so I figure I'll give it a > whirl pretty soon. I just bought some unlockable $10 Vonage-branded > Grandstream HT-802 ATAs which were too enticing to pass up! If you're > interested in messing with that, the details of the unlocking method are > available on page 2 of this thread: > > > https://www.dslreports.com/forum/r30988922-Unlock-New-Grandstream-ATA-used-by-Vonage-Unlocked > > > It requires a serial cable with 3.3V logic and actually didn't even require > soldering since you can easily stick individual pin headers in the three > appropriate holes (TX RX and GND). I'm comfortable with those methods so > the actual process took me about 5 minutes, but reading the entire thread > and digesting all of the information (which I've learned to do when > unlocking a device I don't want to accidentally brick) took considerably > longer. > > > Josh > > ________________________________ > From: Lonnie Abelbeck <li...@lonnie.abelbeck.com> > Sent: Sunday, April 16, 2017 11:42 AM > > To: AstLinux Users Mailing List > Subject: Re: [Astlinux-users] Opus Codec Support > > Josh, > > To be clear, upgrading the base system to Asterisk 13 is easy, but you will > have to tweak your Asterisk configuration. > > This URL, at the end look for "Upgrade Note for Asterisk 11 -> 12" and > Upgrade Note for Asterisk 12 -> 13 ... > > Asterisk LTS Series Version > https://doc.astlinux-project.org/userdoc:tt_asterisk_upgrade_version > > If you built your own custom AstLinux image with Asterisk 13, you could add > to a finished build the proper downloaded binary blobs from Digium > "format_ogg_opus.so" and "codec_opus.so" to their proper location at > output/target/usr/lib/asterisk/modules/ and quickly rebuild with > ./scripts/build . Never tried it, those Opus binary blobs send shivers down > my spine. :-) > > Lonnie > > > On Apr 16, 2017, at 10:08 AM, Josh <jma...@hotmail.com> wrote: > >> Lonnie, >> >> Oops, I missed the previous discussion about Opus. Thanks for pointing me >> to it! I would really like to use Opus with Astlinux now that I have an >> HT802 ATA that supports it but not SILK (as well as people I call via SIP >> who use Opus). However, I was aware of the legal issues surrounding it so I >> had a hunch it might be a hassle to redistribute it with Astlinux. I guess >> I could roll my own Astlinux build with Opus support once you adopt 13.13 >> (which I believe is the first build that includes Opus in menuselect), >> right? >> >> The upgrade to 13 looks easy. Thanks for confirming! >> >> Josh >> >> From: Lonnie Abelbeck <li...@lonnie.abelbeck.com> >> Sent: Sunday, April 16, 2017 9:05 AM >> To: AstLinux Users Mailing List >> Subject: Re: [Astlinux-users] Opus Codec Support >> >> Hi Josh, (comments inline) >> >> On Apr 15, 2017, at 9:46 PM, Josh <jma...@hotmail.com> wrote: >> >> > Hello, >> > >> > Does the current Asterisk 13 version of Astlinux support the Opus codec? >> >> No, Digium's Opus binary blob is not included, but the SILK CODEC is >> included. >> >> Here is a related mailing-list thread on the subject ... >> >> [Astlinux-users] Opus CODEC >> >> https://www.mail-archive.com/astlinux-users@lists.sourceforge.net/msg08638.html >> >> >> > Also, I'm currently running astlinux-1.2.8 i686 - Asterisk 11.23.1. If >> > I want to upgrade to version 13, can I just change my repository URL and do >> > a regular upgrade through the web GUI? >> >> Yes, exactly. >> >> Later, should you want to use Asterisk 11.25.1 instead, change your >> repository URL back to ast11, then System tab -> System Firmware Upgrade: [ >> Revert to Previous ] then [ Upgrade with New ] and lastly Reboot/Restart >> System. >> >> Lonnie >> >> >> >> ------------------------------------------------------------------------------ >> Check out the vibrant tech community on one of the world's most >> engaging tech sites, Slashdot.org! http://sdm.link/slashdot >> _______________________________________________ >> Astlinux-users mailing list >> Astlinux-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/astlinux-users > Astlinux-users Info Page - SourceForge > lists.sourceforge.net > Welcome to the AstLinux users mailing list! To see the collection of prior > postings to the list, visit the Astlinux-users Archives. Using Astlinux ... > >> Astlinux-users Info Page - SourceForge >> lists.sourceforge.net >> Welcome to the AstLinux users mailing list! To see the collection of prior >> postings to the list, visit the Astlinux-users Archives. Using Astlinux ... >> >> >> Donations to support AstLinux are graciously accepted via PayPal to >> pay...@krisk.org. >> >> ------------------------------------------------------------------------------ >> Check out the vibrant tech community on one of the world's most >> engaging tech sites, Slashdot.org! >> http://sdm.link/slashdot_______________________________________________ >> Astlinux-users mailing list >> Astlinux-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/astlinux-users > Astlinux-users Info Page - SourceForge > lists.sourceforge.net > Welcome to the AstLinux users mailing list! To see the collection of prior > postings to the list, visit the Astlinux-users Archives. Using Astlinux ... > >> >> Donations to support AstLinux are graciously accepted via PayPal to >> pay...@krisk.org. > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Astlinux-users mailing list > Astlinux-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/astlinux-users > Astlinux-users Info Page - SourceForge > lists.sourceforge.net > Welcome to the AstLinux users mailing list! To see the collection of prior > postings to the list, visit the Astlinux-users Archives. Using Astlinux ... > > > Donations to support AstLinux are graciously accepted via PayPal to > pay...@krisk.org. > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Astlinux-users mailing list > Astlinux-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/astlinux-users > > Donations to support AstLinux are graciously accepted via PayPal to > pay...@krisk.org. -- Kristian Kielhofner ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Astlinux-users mailing list Astlinux-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/astlinux-users Donations to support AstLinux are graciously accepted via PayPal to pay...@krisk.org. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Astlinux-users mailing list Astlinux-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/astlinux-users Donations to support AstLinux are graciously accepted via PayPal to pay...@krisk.org.
