Broadcast Audio Routing And Switching In One Rack Unit
The BDI GPM-300-5 Crosspoint Switcher is a general purpose matrix audio switcher built for broadcast plants that need dependable routing, clean switching, and fast recovery paths. It handles both analog and AES3 digital audio switching in a single rack chassis, giving you a practical routing hub for studios, air chains, backup feeds, and shared facility sources.
Crosspoint Matrix For Flexible Source To Destination Routing
This is a true crosspoint switcher, so you can route any input to any output when you need it, not just fixed A/B pairs. That flexibility is useful for daily routing changes as well as “something just failed” moments where getting a correct source to air or to a transmitter path matters more than anything else. It also supports facility workflows like EAS system sharing, network join sharing, and emergency studio sharing for N+ backup studio requirements.
Switcher In Switcher Operation For Dedicated A B Paths
The GPM-300 series supports a “switcher in switcher” approach where each output can have pre assigned A and B inputs, with those assignments programmable from the available input pool. In real terms, that means you can build predictable primary and backup behavior per destination while still keeping the power of a full matrix when you need to reroute quickly for maintenance, troubleshooting, or temporary studio moves.
Silence Detection And Auto Revert For Automatic Backup Audio
Each output includes its own silence sensor to detect loss of program audio and trigger an automatic switchover to a backup source. Silence detection settings are programmable, including threshold and timing behaviors, and an auto revert function can return routing to the primary feed once audio is restored. This is exactly the sort of protection broadcast engineers look for when they want fewer dead air surprises and faster recovery without manual intervention.
AES3 Synchronous Switching And Sample Rate Conversion
For digital audio workflows, the platform is designed for synchronous AES3 switching to support quiet, glitch resistant transitions during source changes. Sample rate conversion on every AES3 input helps manage mixed digital sources more cleanly, which is helpful when you’re tying together different digital devices, codecs, or network feeds in a professional broadcast environment. Internal processing is specified at 24 bit resolution throughout for consistent audio handling.
BDI GPM-300-5 I O Configuration For Hybrid Plants
GPM-300-5 is specified as a hybrid configuration with analog stereo pairs and AES digital stereo pairs, making it a strong fit for facilities that run both balanced analog and AES3 digital paths side by side. The provided configuration details indicate 4 analog stereo pairs in and out, plus 4 AES digital stereo pairs in and out, with no composite I O listed for this configuration.