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Go to FAQ section on Dragonfly, Mosquito/Mosquito HDMI, Flea

Dragonfly

  1. What are the output resolution supported:

    The Dragonfly supports many output resolutions; here is a list as of Dec 12th 2005:
640x480p50 1280x768p60 D 1440x900p60 B
640x480p60 1280x960p60 1440x960p60
720x480p60 1280x1024p50 1440x1152p60
720x576p50 1280x1024p60 1600x926p60
800x600p50 1360x768p50 1600x1200p60
800x600p60 1360x768p60 A 1680x1050p60 A
848x480p60 1360x768p60 B 1680x1050p60 B
1024x576p60 1365x768p60 1680x1050p60 C
1024x768p50 1366x768p60 1920x1080i50
1024x768p60 1400x788p60 1920x1080i60
1280x720p50 1400x1050p50 1920x1080p24
1280x720p60 1400x1050p60 A 1920x1080p24sf
1280x768p60 A 1400x1050p60 B 1920x1080p50
1280x768p60 B 1400x1050p60 C 1920x1080p60 A
1280x768p60 C 1440x900p60 A 1920x1080p60 B
Note: A, B, C or D refers to different timing.
  1. Does Dragonfly support user programmable output resolution?
    No, not for now. This feature will be added in the near future via a firmware upgrade.

  2. How do I adjust the audio delay?
    The Dragonfly will adjust automatically for the audio delay. If you do not want to route the audio through the Dragonfly, then you can get the audio delay from the status menu.

  3. Is the Dragonfly using the per-pixel motion adaptive deinterlacing?
    Yes

  4. Can it deinterlace from 1080i to 1080p?
    Yes

  5. Is Dragonfly HDCP compliant?
    Yes

  6. As you know, many displays' processors will only take one field of the 1080i signal, or 540 lines, and upscale that to 720p. I am wondering if the Dragonfly will first deinterlace the 1080i signal to 1080p, then downscale to 720p so that I get at least 720 lines of distinct information rather than just 540 (upscaled)? Thank you in advance?
    The Realta takes the 1080i and deinterlaces to 1080p … once this is done the image is scales to 720p. That is one of the items we are always making sure people know about … HQV True 1080i to 1080p De-interlacing Rather than discarding half the resolution of high-definition (HD) images as today’s image processors typically do, HQV technology uses the full four-field processing window for HD video de-interlacing and cadence detection, preserving the rich details in HD imagery.

  7. I tried updating my Dragonfly and it didn’t work?
    Make sure you have no signal coming on any of the inputs. Shut down the Dragonfly by pulling the power cord out, power it on again without any video inputs. Then, rerun the updater, this time it should go through completely.

  8. The remote control does not work with my Mosquito unit?
    Make sure your remote is set to control the Mosquito by pressing the [UNIT] key on your remote control, followed by the [1] key. This will enable the remote for the mosquito.

Mosquito

  1. How much audio delay does the Mosquito introduce?
    The Audio delay is fixed at 20 video lines. Many audio processors require a delay in millisecond (ms). The user who has a Mosquito, or any other equipment, that specify the delay in term of video lines should do the following calculation to determine the delay in millisecond.Note that each video format used will have a different line frequency, so the delay in ms will vary according to the video format. For instance:
    In 480i (NTSC), the line frequency is ~15.7 KHz (~0.63 us per line)
    In 576i (PAL), the line frequency is ~15.6 KHz (~0.64 us per line)
    In 480p, the line frequency is ~31 KHz
    In 720p, the line frequency is ~45 KHz
    In 1080I, the line frequency is ~33 KHz The longest delay will come from the slowest line. In this case the NTSC and PAL standard are very close with roughly 0.063us per line. Therefore we will base our calculation on this case. So the longest delay is 0.63 us * 20 lines = ~1.3 msThe worst case is 1.3ms if you use SD format. If you have an HD format it is roughly half or a third of that value. Generally this value can be considered negligible.

  2. Do you have discreet codes?
    Yes, we have discreet code for power on, power off, input selections and much more. The complete list is available on our website.

  3. Does Mosquito HDMI handle MPEG-4 compressed signal?
    Mosquito HDMI will filter any image, weather they coded MPEG2 or MPEG4. Random and mosquito noise are similar in nature between MPEG2 and MPEG4. Mosquito HDMI will be effective for both types of compression, or any DCT based compression scheme.

    The various Mosquito, Mosquito HDMI and Flea controls allow the units to adapt to a more or less compressed signal. Adjust to your liking.

    The current BAR (Block Artifact Reducer, v 1.06 in Mosquito HDMI, v 3.07 in Mosquito and v 1.03 in Flea) should be less optimal because of the variable block coding size of MPEG4.

    In the MPEG4 stream, if the block structure for 8x8 block is apparent, the BAR should kick in and clean blocks. If, for an unknown reason, the BAR does not clean properly, it can be turned off.

    Follow the release notes for updates for a BAR version that also addresses MPEG4 blocking scheme.

  4. I have problems with HDMI?
    Here’s the answer from HDMI.ORG that acknowledge known problem with scientific Atlanta Explorer 8300HD and A/V receivers, which is currently our case with HDMI mosquito. HDMI.org responds to the administrator of The Secrets of Home Theater and High Fidelity forum as follows:

    Some cable TV boxes with HDMI out are not delivering any picture to displays with HDMI inputs.
    We have heard complaints that some cable TV boxes are not working correctly when used in conjunction with an A/V receiver (but will typically function correctly when connected directly to a TV/monitor). Investigation of some of these devices reveals that this is caused by an error in the way these devices implement HDCP (HDCP is a content protection system that is nearly always implemented in HDMI). Specifically, some of those boxes do not support "HDCP Repeaters" such as an A/V Receiver or switch. The same is likely true of all such failures. This is not an HDMI-specific problem (as we have seen the same problem in DVI outputs as well). We believe that this may be a problem in the initial versions of these products, and in some cases there is new firmware available that fixes this issue in HDMI (newer versions may already have this fix.). We have contacted the manufacturers to try to get a more complete and direct resolution of any problems.

    We suggest that users contact their cable operator and request the new software to address this bug. Additionally, please note that HDCP is not licensed (or required) by HDMI, but is licensed by Digital Content Protection, LLC, a subsidiary of Intel (http://www.digital-cp.com/). We also urge users to contact digital-cp if they suspect that they are having problems with HDCP implementations such as this issue.

    The current HDMI plug appears not to be as sturdy as anticipated, and there may be a change next year in the design of the plug, and the new plug would not fit in current HDMI sockets.
    We have occasionally received requests for the connectors to have a higher removal force for situations where the cable may be pulling on the connector (e.g. long cable lengths or in equipment racks). We have been looking at new/latching connector designs to remedy this problem, but this would be backwards compatible with the current connector there’s no reason for it not to be. We have also have seen a few connectors that were out of spec (e.g. not the right size, too much over-molding, etc), which led to compatibility issues and, in some cases, connector damage. However, we are commencing a connector certification program to help ensure that all Adopters use compliant connectors.

    Otherwise, I am not sure where this question is coming from - we have a strong interest in maintaining backwards compatibility.

    If you have an HDMI source such as a DVD player, and connect it to your display via HDMI, you may not be able to get 5.1 digital bit streams to come out of the coaxial or Toslink digital output of the player at the same time as digital video and audio out of the HDMI output.
    HDMI places no restrictions on any other digital or analog interface or any restrictions on the behavior of the product other than the behavior of the HDMI output (or input) itself. If a source device chooses to shut down other outputs, then that is a manufacturer product design decision (and I suggest probably a poor decision at that).

    HDMI is a two-way digital communication, and some displays send a handshake signal to the DVD player that permanently messes up the player's ability to output digital video through its HDMI jack.
    We have not heard of this problem, and from a technical perspective it seems nearly impossible for a signal from the TV/receiver that would permanently mess up HDMI. We are investigating one particular high-end DVD player that may have a bug that causes it to crash when it reads certain unexpected data from the TV. However, all the problems that we have seen are implementation issues that the manufacturers can easily fix.

    HDMI v 1.1 is already hitting the shelves, with v 1.2 on the way, and v 1.3 in the next couple of years (v 1.3 will deliver higher res 5.1 digital audio). What will be the backward compatibility of these versions?
    All new versions of HDMI are backwards compatible with all previous versions of HDMI; we have no plans to add any new functions that will break this backwards compatibility. This is very important for us. Each new version of the specification describes one or more new optional features, but all of the functions of the previous version are still supported in the new versions of the HDMI specification.

    The only reason a user may wish to upgrade HDMI is if they wish to use one of the new optional features that the new specs provide. In this case, the user should not be looking for "HDMI 1.2" or "HDMI 1.1" labels, but for descriptions of the exact features that they want. This is because, while HDMI enables functionality, manufacturers are the ones that choose which functionality to implement.

    For instance, from HDMI 1.1 to HDMI 1.2, One Bit Audio support was added - the type of audio used for SuperAudio CD. Prior to HDMI 1.2, some SACD players could play a disk in SACD format, and send the audio to an audio amplifier over HDMI, but it could only send the data in the more common PCM format, after having converted from the native SACD format. With HDMI 1.2s new One Bit Audio option, the SACD player can now send the native SACD data to the audio amplifier over HDMI, as long as that amplifier supports One Bit Audio as well. If the amplifier is not capable of handling One Bit Audio then the player can still send PCM.

    This example points out a couple of things: even though the player has been designed to take advantage of the new optional feature in HDMI 1.2, it is still backwards compatible with PCM-only amplifiers. In addition, because this new feature is optional for all devices, a particular device could implement HDMI 1.2 without implementing all of the new optional features. If you want to have the audio transmitted in One Bit Audio format then you need to verify that the player and receiver are "HDMI One Bit Audio" capable.

    Can you feed a Mosquito separate component and HDMI signals and output the signals simultaneously to two different displays?
    The processing power required to process one signal feed is tremendous. Therefore you cannot input two feeds at the same time for processing. However, Mosquito HDMI will process one feed and can output it to multiple displays with the use of a third party signal distribution box.

    Can Mosquito HDMI output a component signal thru HDMI, or is it preserved as component?
    HDMI uses HDCP encryption to secure content. Therefore, any HDMI input must output in HDMI format. Though not presently supported, a component input could output via the HDMI output. This would be a software upgradeable feature that could be downloaded and then installed via USB.

    Problems with a DVI to HDMI conversion?
    Mosquito HDMI is compatible with the DVI format. Problems are know to occur with the use of a DVI to HDMI adaptor placed between the Mosquito HDMI unit and a DVI cable, for mechanical reasons. See PDF for more details. DVI-to-HDMI_FAQ

  5. Is the noise reduction the same between the Dragonfly and Mosquito?
    Performance wise, the Dragonfly noise reduction is not an equivalent of the Mosquito. The Dragonfly noise reduction will only work on 480i format, as opposed to the Mosquito which accepts 480i, 480p, 720p and 1080i input formats. Due to the processing requirement of the noise reduction algorithm, the Dragonfly noise reduction capability had to be scaled back compared to the Mosquito. So even when comparing both 480i modes between the Dragonfly and Mosquito, the Mosquito noise reducer has a more complex noise reduction capability. That being said, if most of the time you intend to feed the Dragonfly with 480i sources, the Dragonfly’s noise reduction will perform an excellent job. If you intend to use various format to feed the Dragonfly, then I would recommend using the Mosquito or the Flea.

  6. What is the remote protocol used by the Algolith Mosquito/Flea remote?
    The remote control used for the Mosquito/Flea utilizes the RC5 Extended Protocol developed originally by Philips. Our remote can be mapped with a universal remote control such as the Philips Pronto TSU-3000 or the Logitech Harmony 100, other universal remotes or controllers may work. Check with your universal remote or controller vendor to verify if they support the RC5 Extended Protocol.

  7. Can I use the USB port for controlling my Algolith Mosquito/Flea?
    Yes, you must order our Algolith Serial Option. This adapter allow RS-232C control via USB. The USB port will be converted as a DE9 (female) connector. The unit comes with its own DC Power Supply. For more information, see the Serial Option User Guide.

  8. How many video inputs and outputs are available on the Mosquito HDMI?
    The Mosquito HDMI has 4 HDMI and 2 Analog Component Inputs and 1 HDMI and 1 Analog Component Outputs.

  9. My Dragonfly remote control does not work with my Mosquito unit?
    Make sure your remote is set to control the Mosquito by pressing the [UNIT] key on your remote control, followed by the [1] key. This will enable the remote for the mosquito.

Flea

  1. I connect my Flea and nothing comes out?
    Verify that the blue LED is on, that the cables input and output are properly connected. The selected input may be S-Video or components, double click on the center button of the unit, this will toggle the input selection.

  2. Does the Flea cross convert S-Video to Component?
    Yes, but only in SD format ( 480i or 576i). In this format, both outputs are always active. For instance, if you use the S-Video as an input, both S-Video AND Component will be active.

  3. Does the Flea upscale?
    No, the Flea supports four resolutions (480i, 480p, 720p, 1080i) on its Component connectors. The output resolution of the Flea will be the same as its input.

  4. Is the noise reduction the same between the Dragonfly and Mosquito?
    Performance wise, the Dragonfly noise reduction is not an equivalent of the Mosquito. The Dragonfly noise reduction will only work on 480i format, as opposed to the Mosquito which accepts 480i, 480p, 720p and 1080i input formats. Due to the processing requirement of the noise reduction algorithm, the Dragonfly noise reduction capability had to be scaled back compared to the Mosquito. So even when comparing both 480i modes between the Dragonfly and Mosquito, the Mosquito noise reducer has a more complex noise reduction capability. That being said, if most of the time you intend to feed the Dragonfly with 480i sources, the Dragonfly’s noise reduction will perform an excellent job. If you intend to use various format to feed the Dragonfly, then I would recommend using the Mosquito or the Flea.

  5. What is the remote protocol used by the Algolith Mosquito/Flea remote?
    The remote control used for the Mosquito/Flea utilizes the RC5 Extended Protocol developed originally by Philips. Our remote can be mapped with a universal remote control such as the Philips Pronto TSU-3000 or the Logitech Harmony 100, other universal remotes or controllers may work. Check with your universal remote or controller vendor to verify if they support the RC5 Extended Protocol.

  6. Can I use the USB port for controlling my Algolith Mosquito/Flea?
    Yes, you must order our Algolith Serial Option. This adapter allow RS-232C control via USB. The USB port will be converted as a DE9 (female) connector. The unit comes with its own DC Power Supply. For more information, see the Serial Option User Guide.

  7. How many video inputs and outputs are available on the Flea and Flea HDMI?
    The Flea has 1 Analog Component and 1 S-Video Inputs and 1 Analog Component and 1 S-Video Outputs. The Flea HDMI has 2 HDMI Inputs and 1 HDMI Output.


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