Windows-based Cost-effective Expandable Multi-Channel IP Audio Codec
CallMe-TX uses Vortex’s industry-standard CallMe “codec engine” running under MS Windows to provide multiple CallMe IP Audio Codecs on a single platform.
CallMe-TX provides the same capability as the established and well-liked CallMe-T low-cost desktop hardware codec and is licenced by number of calls and number of audio channels making it ideal as a studio ingest for multiple contribution sources which can include Program Audio, Talkback and Telephone. CallMe-TX interfaces to physical soundcards and virtual Audio-over-IP drivers (for example Dante Virtual Soundcard) via ASIO/MME.
CallMe-T on which the Windows CallMe-TX is based, was first announced at IBC 2017 as a low-cost back-end for what has become Vortex’s industry-standard CallMe Click-&-Connect cloud codec that puts guest contributors and reporters live on-air without the need for them to have special hardware or download a software codec.
It has since developed into a mainstream IP Audio workhorse providing one-touch connection to its stored Quick-Dial destinations and even incorporates video stream support so that CallMe-T (and TX) can join a Zoom call to provide the highest-quality audio possible straight from the Zoom server. CallMe-T already has an excellent reputation for robust connectivity, audio quality and ease-of-use which is all transferred to the Windows CallMe-TX version.
With increased use of Audio-over-IP connectivity for Program Sound, Talkback and even Telephone contributions, the need for IP Audio codecs has increased significantly especially over the last couple of years. With each Front-End IP Audio device, there is the need for a matching Back-End codec and the costs of purchasing, owning, running – and indeed recycling at end-of-life – not to mention finding space in equipment bays to house them and energy to run them – then more energy to keep the cool – makes dedicated individual hardware units much less attractive as time moves forward. Furthermore, Organizations – often encouraged by Government legislation – are becoming much more conscious of their Green Credentials and carbon footprint so condensing capability within a single hardware unit is extremely attractive.
Opus Mono, Dual Mono and Stereo, 8–510kbps, G.722G.711 μ-law and A-law
|ANALOGUE FREQUENCY RESPONSE
|IP PROTOCOLS AND PORTS
|SIP UDP 5060, TCP 5060
RT(C)P UDP 15004–15515
MDNS UDP 5353
LLMNR UDP 5355, TCP 5355
DHCP UDP 68
DHCPV6 UDP 546
DNS UDP any (53 remote)
STUN UDP any (3478 remote)
HTTP TCP 80
HTTPS TCP 443
SSH TCP 22
|HARDWARE & VIRTUAL (eg DANTE VIRTUAL SOUNDCARD)