AMX Modero NXD/NXT-1200VG - Manual (Page 152)

Firmware Pages and Descriptions
138 VG-Series Modero Touch Panels
Streaming Settings Page Elements (Cont.)
Resolution This relates to the display size/resolution used by the incoming video stream.
• Available resolutions: D1 (default) or SIF:
• D1 is a resolution standard. In the NTSC system, "Full D1" means 720x480
pixels @ 30 fps, and in PAL systems, full D1 is 720x576 @ 24 fps.
• SIF (Source Interchange Format) is a resolution standard defined as 352x240
@ 30fps for NTSC and 352x288 @ 24 fps for PAL.
Scaling This is the ability of the Modero panel to scale the incoming NTSC or PAL video
stream into the following pixel resolutions:
• NTSC format:
- 12" VG Modero panel: 360x240 (SIF),720x480 (D1), and 800x600
- 15" VG Modero panel: 1024x768
- 17" VG Modero panel: 1280x768
• PAL format:
- 12" VG Modero panel: 360x288 (SIF),720x576 (D1), and 800x600
- 15" VG Modero panel: 1024x768
- 17" VG Modero panel: 1280x768
Audio: This read-only field displays the audio streaming information (Audio Streaming
format, sampling rate, and number of channels).
• The properties of this incoming (detected) audio stream is given as: Audio
Codec, Sampling Rate, and Audio Channels.
• An example would be: MP3 44100Hz 2Ch. This means that the
accompanying audio stream is using a 2 channel, MP3 audio stream with
sampling rate of 44100 Hz.
Codec
(Short for enCOder/
DECoder or COmpressor/
DECompressor) Supported audio codecs: AAC, MP2 or MP3
• AAC (Advanced Audio Coding) is a digital audio encoding and loss
compression format. AAC was designed as an improved-performance codec
relative to MP3 (which was specified in MPEG-1) and MPEG-2 Part 3 (which
is also known as "MPEG-2 Audio" or ISO/IEC 13818-3).
• MP2 (MPEG Audio Layer-2) is used as a file extension for files containing
audio data of this type. It remains a dominant standard for audio
broadcasting. This file type allows the coding of audio programs with more
than two channels. The main difference between these two types is that MP2
audio files are generally larger than their MP3 counterparts and are mostly
used with MPEG-2 video streams.
Note: MP2 is recommended for use with a high bandwidth video stream
(ex: MPEG-4 or 6 Mbps - 3 Mbps).
• MP3 (MPEG Audio Layer-3) is a popular digital audio encoding and loss
compression format. It was designed to greatly reduce the amount of data
required to represent the original audio data, yet still sound like a faithful
reproduction of the original uncompressed audio to most listeners.
Note: MP3 is recommended for use with a low bandwidth video stream
(ex: MPEG-2 or < 3 Mbps).
Sampling Rate This is the sampling rate used by the incoming audio stream.
• Sampling rate defines the number of samples per second taken from a
continuous signal to make it a discrete signal.
• Rate is measured in KHz (KiloHertz).
• Available audio sampling rates: 32KHz, 44.1KHz, and 48KHz.
• Some of the common uses for these rates include:
- 32,000 KHz - miniDV digital video camcorder
- 44,100 KHz - compact disc, also most commonly used
with MPEG-1 audio (VCD, SVCD, MP3)
- 48,000 KHz - digital sound used for digital TV, DVD, DAT,
films and professional audio
Note: Currently, 32KHz is not supported within the Modero firmware.