I know :(!
On Sun, Apr 16, 2017 at 4:03 PM Michael Knill <
michael.kn...@ipcsolutions.com.au> wrote:
> 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
> >>
> >>
> >>
> >>
> ------------------------------------------------------------------------------
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> >
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> ...
> >>
> >>
> >> Donations to support AstLinux are graciously accepted via PayPal to
> >> pay...@krisk.org.
> >>
> >>
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> ...
> >
> >>
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> >
> >
> >
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> prior
> > postings to the list, visit the Astlinux-users Archives. Using Astlinux
> ...
> >
> >
> > Donations to support AstLinux are graciously accepted via PayPal to
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> >
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>
>
>
> --
> Kristian Kielhofner
>
>
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>
>
>
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