isdn audio codecs at ISDNAUDIO.COM

ISDN Audio Codec sales for broadcasters and pro-audio users







Live audio over IP networks -  
Reliable, high quality and with just a 5ms delay

Finally, a true transmission grade, low delay system for audio over ANY IP Network - including private networks and the Internet

AudioTX STL-IP gives you live audio transmission over IP networks with transmission grade audio quality & robustness and extremely low delays - as low as 5ms!

Editor's note: This product is an interesting departure for us - as you'd have guessed from the name of our business, we specialise in ISDN codecs. For a while now, we have been looking at audio over IP - and in fact, we have been selling the AudioTX Communicator software for some time, which does audio over IP alongside being an ISDN codec. We have tested other IP codecs - and they just haven't performed well enough for us to recommend them. This new product has really impressed us - it truly offers audio over IP that will meet the expectations of broadcasters and professional audio users - even in 24/7/365 applications, including as the name suggests, STL (Studio to Transmitter Link) applications.

  • Transmit and receive audio using UDP, TCP/IP, or Multicast network protocols over ANY IP Network - including private networks like LAN or WAN, Wireless networks, Satellite, T1/E1, ATM or the Internet.
  • A single STL-IP system can send audio on up to 6 connections at a time. Using Multicast, audio can be sent to an unlimited number of destination units. Audio can be received from one remote location, independently from transmission.
  • AudioTX STL –IP works with linear (uncompressed) audio at up to 24 bits and 96kHz sample rate, or compressed audio via built-in Professional Grade MPEG Layer 2 and MPEG Layer 3 coding/decoding, J.41 and ADPCM.
  • PLUS, add optional MPEG4 AAC, AAC low delay, HE-AAC (AAC Plus) with the AAC Codec Pack.
  • PLUS, add optional Enhanced APTx coding (16 and 24 bits) with the APTx Codec Pack.
  • Optional Forward Error Correction (FEC) and network jitter compensation where required.
  • Professional grade analogue balanced Stereo audio inputs and outputs plus AES/EBU digital audio in/out, external wordclock input. Audio in/out at up to 24 bit, 96 kHz sample rate
  • Synchronous transmission of serial ancillary data and/or contact closures (TTL GPIO)
  • Incredibly flexible and cost-effective solution.

AudioTX STL-IP can send live audio using up to 6 simultaneous connections - including any combination of UDP, TCP/IP or UDP Multicast (to an unlimited number of destinations for each UDP Multicast connection). The system can receive audio from one location.

For more details, see

Musicam   ISYSPro   GlenSound   EasyCorder   IntelliPRIMA
isdn audio codec ISDN AUDIO CODEC