Overview
 
 

Have you noticed an unprecedented demand for high quality audio links?

  • Radio
  • Internet radio
  • POD broadcasts
  • Music download links
  • Event broadcasts
  • Studio to Transmitter Links (STL)
  • Teleconferencing
  • Emergency links, etc.

For security and reliability, Professionals have relied upon telco circuits and expensive audio CODECs to create audio distribution networks. But,

  • Long-term use of telco “dial up” circuits is expensive and
  • Leased T1 Lines are expensive too.

As an alternative, some users are turning to IP-based circuits. But these also face challenges for high quality audio:

  • IP circuits often lack the “hacker-proof” security of telco private-lines
  • IP circuits often degrade quality
  • IP circuits may break-up during periods of heavy use
  • IP circuits often require user 24x7 support instead of 24x7 telco support

The answer? Leased telco Program Audio circuits equipped with Pulsecom’s Program Channel Access Units, or PCAU.

Telco Program Audio circuits are an economical alternative to dial-up and T1 circuits and, with coast-to-coast availability of Pulsecom’s PCAU, circuit quality has moved from noisy analog or antiquated “J.41 digital encoding” to Best In Class apt-X™ crystal clear digital. APT’s acclaimed apt-X™ audio compression technology is in use throughout the broadcast industry and in all DTS professional cinema sound systems.

Few products have had such an impact - there are already over 3,000 PCAUs in service.

Consider the benefits compared with traditional as well as high-speed MPEG or IP based alternatives:

Capability

Old Telco J.41

MPEG

IP

PCAU

Extend to all Locations

No

No

No

Yes

Avoid Malicious “Hacking”

Yes

No

No

Yes

Avoid Listener Fatigue

Yes

No

No

Yes

Great Low-frequency Response

No

No

No

Yes

Excellent Mid-band “Punch”

No

No

No

Yes

Long-term Stability

No

maybe

maybe

Yes

Superior Audio Quality

No

No

No

Yes

Support for multiple “back-to-back” connections (POD casting, Internet Radio etc.)

Yes

No

No

Yes

Near-instantaneous Encoding?

Yes

No

No

Yes

Stand-alone mode over 3 miles of telephone wire?

No

No

No

Yes

Zone 4 earthquake and outdoor lightning protection?

Yes

No

No

Yes

 
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