Hello! I'm Kevin from InQuality. Today I'm
going to show you how to build an IP
codec using a Raspberry Pi computer. I'm
gonna go to sip.audio/build
This takes me to a step-by-step
guide. First of all it says to download
the latest InCodec firmware. So I'll
follow the link and that's downloading.
Step 2 download and install the BalenaEtcher software. This is the software
which allows us to flash the firmware to
the SD card. Downloading that also. Next
it says to insert a microSD card into a
card reader: here's my card reader, here's
my microSD card. Pop that in there and
then attach the card reader to my
computer. Run the BalenaEtcher software. For
my image I'm going to choose that
downloaded InCodec zip file and make
sure that the destination is set as my
SD card and then I can click on Flash.
While that's happening I can now prepare
my Raspberry Pi computer. Here is a Pi3
model B and you'll see I've put it in a
little case. You can also use a Raspberry
Pi 4. 1 gigabyte is plenty for that.
Next I can attach my USB microphone. This
is a Samson q2u microphone. Alternatively
I could use a USB audio interface such
as this Focusrite 2i2. I'll also need some
headphones and rather than connect these
into the Pi I'm going to connect these
into the headphone socket on the bottom
of the microphone. Next connect an
ethernet cable: I will plug one end into
my internet router
and connect to the other end into the
Pi. For this initial setup it's also
useful to connect a computer monitor to
the Pi using an HDMI cable. My SD card
has now finished flashing so I can take
it from the computer. Take it from the SD
card reader and insert it into the card
slot which is on the bottom of the Pi.
The contacts go upwards facing. We're now
ready to connect the power supply into
the Pi - this is a micro USB connector
and it goes into the ports here. Once
that's powering up we should see some
activity on the Ethernet port on the
back here. Little green flashing light. On
the bottom of the screen here we can now
see the IP address which has been
allocated to the Raspberry Pi; so the IP
address here is 192.168.1.156 I
enter that into a computer that's
attached to the same network and I can
leave most of these default settings on
this first time setup screen the same
but I will change the description to
"Kevin's codec." That helps us if you ever
contact us for support. Submit that
information. The default password is inqodec with a Q for codec and now it's
asking me to enter my sip account
details. If you need a sip account for
your device, go to sip.audio and
click on 'get sip.audio.' The account
that I've created is called build.codec and the password is inquality.
We can leave the other settings the same
and click on save. Now we see that the
device is registering and it's now
registered to the SIP.audio sip
server. I know that because it says "ready"
on my screen. Now if I go to ipDTL
I can type in its sip address build.codec@sip.saudio
and click on connect and if we
look back at the codec you'll see we
have a connected call. I'll take the
microphone and speak into it and we see
that the audio is coming back into my ipDTL interface and if I click record in
ipDTL's player/recorder and count 12345
and then stop.. when I play that
back: "and count 12345"
you'll see that the audio comes back in
opus codec quality. Likewise, I can call
my ipDTL account from the device. I can
type in myfmstation@sip.audio and click
on 'call' and if I look at ipDTL again,
you'll see that the call connects and you
can see my audio blending in ipDTL. You
can connect to any other SIP enabled
device, such as a Comrex Access or Tieline or a Wheatstone Switchblade... the
list goes on and on and you'll find more
details on our website. You can even add
a touch screen to your Rasberry Pi as we
have done here and then configure short
cut so that with one simple press you
can dial an ISDN line, a phone line or
any sip endpoints; but if all of this is
too much for you you can buy a
ready-made USB sip codec on our website
inQualityMedia.com/store
Thank you for watching this video from
inQuality!
Do let us know how you get on in the
comments below and please do subscribe to our youtube channel!
 
 
