Using latest generation IP and audio coding technologies, the IPCA1 was designed from the ground up for stable operation with the lowest latency and best audio performance possible based on network characteristics.
To keep latency as low as possible, the IPCA1 uses a proprietary, dynamically adjustable jitter buffer that adjusts to Network conditions, providing 24 bit audio, with up to 48 KHz sampling, at the lowest possible delay at all times.
Supporting UDP, UDP Multicast and TCP/IP protocols, the unit includes a range of low delay codecs operating at bitrates as low as 32 kbps with fewer quality/bitrate tradeoffs. Linear, and a selection of lossless and low delay ,low bit rate codecs are all on board including the popular APTX low bitrate, low delay algorithm.
If the worst should happen and the data network fails, the built in 'Plan B' silence detection can trigger local audio failover to SD card storage.
Convenience features include AES/EBU digital and XLR line level inputs/outputs, headphone jack, OLED metering, GPIO and RS232 ancillary data channel. The graphically rich web and telnet interfaces provide automated control and the IPCA1 firmware is remotely upgradeable
Features
Low latency
Range of codecs including APTX
Dynamically adjustable jitter buffer
24 bit, 48 KHz audio sampling
Supports UDP, UDP Multicast and TCP/IP protocols
'Plan B' silence detection
Analog Input
Nom. input level
-12 to +12dBu
Max input level
+24dBu
Connectors
XLR floating, EMI suppressed
A/D conversion
24 bit 48 kHz 128x oversampled
Analog Output
Analog output
-12 to +24dBu
Connectors
XLR floating,EMI suppressed
D/A conversion
24 bit 48 Khz 128x oversampled
Digital Input (AES/EBU)
Sampling rate
32-48kHz
Connector
XLR floating,EMI suppressed
Digital Output (AES/EBU)
Sampling rate
32kHz, 44.1kHz, 48kHz
Supported Protocols
XLR floating,EMI suppressed
Networked Audio
Audio Codecs
Celt, PCM, APTX
Connector
UDP, UDP Multicast and TCP/IP
Connectivity
Remote interface
Ethernet (web browser) and telnet
Ancillary Data Channel
RS232 Serial
Trigger Inputs
8 x opto-isolated trigger inputs to RS232 data stream for interfacing to remote radio automation systems