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EchoDamp
The Ultimate Solution for Audio Mixing and Echo Control in the High-Bandwidth Musical Videoteleconference
 
 
 
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Frequently Asked Questions
  1. What are the hardware and system requirements for ECHODamp?
  2. Can I run ECHODamp on the same computer as my VTC software?
  3. Why do I have to use a separate audio interface with ECHODamp? Why can't ECHODamp just get the audio directly from the VTC application?
  4. Will my (insert make and model) interface work with ECHODamp?
  5. Do I still need to use my mixer with ECHODamp?
  6. My interface comes with it's own routing and mixing software. Do I need to use it with ECHODamp?
  7. Do I have to plug my VTC codec into inputs 3 and 4 on my interface?
  8. Why can't I connect my hardware a different way?
  9. What if I want to use more than 6 microphones?
  10. Can I do a Mono VTC with ECHODamp, or does it always have to be stereo?
  11. Can I do a Surround Sound VTC with ECHODamp?
  12. Why am I still getting echo even though I am using ECHODamp?
  13. When I launch ECHODamp on Windows, why do I see a white square with a smaller black square on top of it located in the upper right corner of the mixer window?
  14. Why can't I select a different audio driver?
  15. This %#$!@* program doesn't work!
 

1. What are the hardware and system requirements for ECHODamp?
ECHODamp runs on both Macintosh and Windows computers.
Macintosh Requirements: PPC or Intel processer with OS 10.4.11 or higher, and at least 1GB of RAM
Windows Requirements: XP, Vista, or Windows 7, and at least 1GB of RAM Note: on a Windows PC, ECHODamp requires QuickTime 7.1 or higher to be installed. QuickTime for Windows is available free from Apple.
Computer Monitor Resolution: Although ECHODamp will display on smaller monitors, it is optimized for 17-inch monitors and larger with a screen resolution of 1280x800 or greater.
Audio Hardware Requirements: Any audio interface with a minimum of 4 discrete analog inputs and 4 discrete analog outputs that supports CoreAudio on the Macintosh, or MME, DirectSound, or ASIO on the Windows PC

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2. Can I run ECHODamp on the same computer as my VTC software?
Technically, yes, but it is not recommended. VTC applications and ECHODamp both put heavy CPU loads on a computer. For best results, you should run the programs on separate machines.

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3. Why do I have to use a separate audio interface with ECHODamp? Why can't ECHODamp just get the audio directly from the VTC application?
Okay, that's actually two questions, but they are closely related. At this stage, many of the commonly-used, high-bandwidth VTC applications don't allow direct access to their audio streams. Thus, the only way to control the audio is to output it from the VTC computer as analog audio, do the mixing and echo control processing, then send it back to the VTC computer as analog audio. Hopefully, this will change in the near future, but for now, this seems to be the most versatile solution given all the different VTC programs in use.

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4. Will my (insert make and model) interface work with ECHODamp?
ECHODamp supports any audio interface that has a minimum of 4 separate analog inputs and outputs AND supports CoreAudio on the Macintosh platform, or MME, DirectSound, or ASIO on the Windows platform. These days nearly all audio interfaces support one or more of these drivers, so the critical factor is more likely to be whether it has the minimum number of 4 inputs and outputs.

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5. Do I still need to use my mixer with ECHODamp?
Not if you are using less than 6 microphone inputs. ECHODamp lets you do all the mixing and routing tasks directly within the program. If you need more than 6 microphone inputs, you can connect the microphones to your analog mixer and send the stereo outputs of the mixer to channels 1 and 2 in ECHODamp.

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6. My interface comes with it's own routing and mixing software. Do I need to use it with ECHODamp?
Probably not. ECHODamp handles all the routing and mixing for your interface, so you most likely won't need to use it. In fact, running your software at the same time as ECHODamp can sometimes create phase cancellation problems and cause interference with the echo control features in ECHODamp. Try turning off all the channels in your interface's software first and see if ECHODamp works properly.

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7. Do I have to plug my VTC codec into inputs 3 and 4 on my interface?
No, in the Audio Settings window, there is a button for Input/Output Map that allows you to assign different physical inputs and outputs on your interface to the "virtual" inputs and outputs of ECHODamp. Although the VTC codec is expected in "virtual" inputs 3 and 4, you can connect your codec to any inputs you wish on your hardware interface and map them in the Input/Output Map window. For more information on connections into and out of ECHODamp, please see the User Manual.

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8. Why can't I connect my hardware a different way?
In order to make ECHODamp as versatile as possible, certain configurations had to be created internally in the program. The "rigidness" of the configuration actually makes the software more versatile and compatible with the largest number of audio interfaces. For more information on connections into and out of ECHODamp, please see the User Manual.

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9. What if I want to use more than 6 microphones?
ECHODamp only accepts 6 mic/line inputs directly. However, if you want to use more inputs than that, simply connect your microphones to an analog mixer and connect the main outputs of the mixer to inputs 1 and 2 of ECHODamp.

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10. Can I do a Mono VTC with ECHODamp, or does it always have to be stereo?
Yes, you can do Mono VTC sessions. Send the mono output of your codec to channel 3 in ECHODamp and pan that channel to the middle. Likewise, connect output 3 from ECHODamp to your codec, but pan your microphone channel(s) hard left so that their entire signal goes to channel 3.

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11. Can I do a Surround Sound VTC with ECHODamp?
Not at this time. ECHODamp is designed for stereo VTC configurations. By definition, a surround sound configuration would involve loudspeakers pointed directly into the VTC microphones, thus defeating the echo control features of ECHODamp.

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12. Why am I still getting echo even though I am using ECHODamp?
There can be a number of reasons why you are still experiencing echo. ECHODamp is not a "magic bullet" that can overcome every possible audio scenario. Instead, it is one key element of the total audio configuration for the VTC environment. First, both ends of the VTC need to be using ECHODamp (that's one of the reasons it's available free). Secondly—and equally importantly—you must follow the setup and configuration instructions—including Physical Echo Control—found in the User Manual. Failure to do so defeats the echo control capabilities of ECHODamp.

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13. When I launch ECHODamp on Windows, why do I see a white square with a smaller black square on top of it located in the upper right corner of the mixer window?
Remember all of those notices about the fact that ECHODamp on Windows requires QuickTime. This display oddity is one of the symptoms of the absence of QuickTime. You can download QuickTime for Windows for free from the Apple site. Note: QuickTime emulator programs don't seem to work, you need the real thing.

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14. Why can't I select a different audio driver?
ECHODamp relies on the audio drivers installed on your computer. Make sure you have the most current version of the driver for your audio interface. If you have that and are still unable to select a driver that should be working, quit ECHODamp and then delete the "EchoDamp Preference Files" folder (delete the entire folder). The preference files will be rebuilt the next time you launch ECHODamp. Depending on your computer's operating system, that folder may be in one of the following locations:
Macintosh: [Username]\Library\Preferences\EchoDamp Preferences Folder
Windows XP: C:\Documents and Settings\[Username]\Application Data\Cycling '74\EchoDamp Preference Files
Windows Vista and 7: C:\Users\[Username]\AppData\Roaming\Cycling '74\EchoDamp Preference Files

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15. This %#$!@* program doesn't work!
Okay, well that's not really a question now is it? If you are experiencing a bug, or problem with the actual ECHODamp software, please use the Contact Form to report it (preferably with less colorful language). If the problem is more related to the capability of ECHODamp to control echo, please see FAQ 12, above.

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