Solidyne 542 APC, Owner'S Manual

Page: 41 / 44

Web server port: Defines the port where the web server of
the Solidyne device can be found. If set to "0", the default
HTTP port (80) is used.
5.1.6 External Control
When the "542APC / AoIP" is streamed from other Soli-
dyne devices, data lines can be used to command special
542APC functions. The Streaming-AoIP module has four
internal GPIOs. The encoder inputs control the processor
switches. In the WEB Control Panel, go to "Configuration"
in the main menu. The "I / O and Control" section allows
to define the behavior of the GPIO.
5.1.7 About audio formats
542APC/AoIP supports the following audio streams:
• MPEG1 / MPEG2 (only half-duplex)
• PCM MSB/LSB first
The CODEC used is defined in the encoder hardware. The
542APC processor automatically recognizes most audio
formats. Remember that the playback buffer size is an
important parameter (Settings Streaming RTP Delay)
→ →
.
The value expresses the playback buffer in milliseconds.
MP3 low bitrate 400 mS
MP3 high bitrate 200 mS
PCM 44.1/48 KHz 40 mS
The optimum value depends on the audio format and the
sampling rate. Small values minimize delay, but increase
the chance of audio being chopped.
Audio Processing Core - SOLIDYNE 542 APC Page 41