Owner`s manual

nanoFlash FAQs
10-Apr-10 ©Convergent Design, Inc. Page 40 of 42
The Flash XDR and nanoFlash both accept HD/SD-SDI video with embedded audio.
The nanoFlash also accepts HDMI video with embedded audio. The Flash XDR has 2
channel balanced analog audio inputs with phantom power and microphone support.
The nanoFlash has 2 channel unbalanced analog audio input to go with the 2 channel
embedded audio support.
177. What bit-rates does the Flash XDR/nanoFlash support?
• 5, 6, 7, 8, and 9 Mbit for standard definition (4:2:0)
• 19, 25, 35 Mbit for high definition (4:2:0)
• 50 Mbit for high definition (4:2:2). Note that your decoder will need to be able to
support 4:2:2 decoding. The Flash XDR/nanoFlash is able to decode 4:2:2.
178. Why doesn’t the Flash XDR/nanoFlash support X/custom bit-rate?
To make the Flash XDR/nanoFlash simple to use, we pre-defined bit-rates that are
common in the industry. If you need a specific bit-rate, drop us an email and we will
consider adding it..
179. What about 4:2:2 ASI encoding?
The Flash XDR/nanoFlash can encode video at 50 Mbit 4:2:2. This offers supreme
quality at the cost of bandwidth.
180. Can the Flash XDR/nanoFlash support both 16X9 and 4X3 standard definition?
Yes, there is an option in the video menu to specify whether the SD video is
compressed as 4X3 or 16X9.
181. What video formats are supported?
• 1080i60/59.94/50
• 1080p30/29.97/25/24/23.96
• 720p60/59.94/50
• 576i, 486i (PAL, NTSC)
182. How is the audio handled?
The 2 channel audio, either from embedded or analog source, is compressed using
MPEG1 layer 2 at 384 Kbps.
183. What is the latency through the encode/decode process?
• Encoding takes approximately 4 frames or ~120 mSec.
• Decode takes approximately 4 frames or ~120 mSec