Epiphan Pearl Mini Live Video Production System - Manual (Page 214)

Pearl Mini User Guide Configure encoding
Configure encoding
You can modify the encoding settings for each channel. The encoding settings let you fine tune your channel
recording or live stream. You can select a specific frame size, bit rate, audio or video codec, and more.
Topics include:
l
Codecs and file format compatibility
l
Configure video encoding
l
Configure audio encoding
l
Multi-encoding and channel as a source
Codecs and file format compatibility
Pearl Mini supports the following video and audio codecs.
Table 37 Supported video codes
Value Description
H.264
H.264 is the default video codec configured for the channels on Pearl Mini. This codec
provides high quality video while using low bandwidth and is the preferred codec to
use with the system.
Motion JPEG
Motion JPEG is suitable for live streaming and video; however, you can experience low
quality images while using high bandwidth. Motion JPEG does not support audio.
Table 38 Supported audio codecs and bitrate guidance
Value Description
AAC
AAC is comparable to MP3 and may even provide better sound quality at a similar
sample bitrate. Supported sampling bitrate values are: 16, 22, 44 and 48K kHz.
Setting the channel bitrate to match the audio source's bitrate provides the best
sound quality and avoids audio resampling. Most digital signals (HDMI
or SDI sources) use 48 kHz. Most digital signals (HDMI or SDI sources) use 48 kHz
audio. For analog signals, 44 kHz provides a good quality audio sample.
The maximum bitrate for mono encoding of a 44 kHz signal is 264 kbps. For stereo,
320 kbps is supported. Note that lower bitrates (e.g. 32 kbps) with a 44 kHz signal
may result in distorted audio.
203