Difference between pages "Stereo / Mono / Distributed Systems" and "Acoustic Guitar"

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m (→‎Tone: http://www.pantheonguitars.com/tonewoods.htm)
 
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=== Stereo ===
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[[Image:AcousticGuitarL1.jpg|ST's Morgan with L1|right]]
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Question:
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== Pickups and Systems ==
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=== Fishman Aura  ===
  
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The Compact looks really attractive as a lightweight solution for running stereo. Are there any special considerations for doing this? I am looking for differences from the way we might have approached this with the other L1® models
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"If you want high gain, you would use all pickup and no mic on the blender."<ref>[http://bose.infopop.cc/eve/forums/a/tpc/f/6806048934/m/4231037502/r/4681006602#4681006602 Fishman Aura Post in the Bose® Musicians Community Message Boards]</ref>
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Ever since the L1 approach was introduced in 2003, we've had a vibrant discussion here about the subject of instruments that work in stereo -- predominantly keyboards and occasionally guitar (Adrian Belew, Pat Metheny for example).
 
  
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Here a few things to consider from my perspective:
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"You can have all pickup (no Aura sound image) or all Aura sound image (no pickup)... or blend them together in steps... The sound image is only 'one side'... if you look at it that way. If you blend to pickup only, you only hear the pickup... its like by-passing the Aura."
  
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* There are many reasons a player would want to hear his or her instrument in stereo. Having different sounds come from different directions can be very exciting sonically and I doubt there's much controversy about that.
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=== Owners Talking ===
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There is a very interesting discussion<ref>[http://bose.infopop.cc/eve/forums/a/tpc/f/6366055944/m/5501022022 Acoustic Guitar discussion in the Bose® Musicians Community Message Boards]</ref>  about pickups and preamp systems from D-Tar, Fishman, K & K, LR Baggs and others.  
  
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* An L1 system can project a wide stereo field on stage and into the audience -- particularly the Model I and the Model II. Because the I and II are essentially 14' line arrays (7' speaker with a 7' mirror image source created by the floor reflection) they project sound at much less loss with distance than a conventional speaker. This has the effect of greatly enhancing the size of the stereo field.
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See: [http://bose.infopop.cc/eve/forums/a/tpc/f/6366055944/m/5501022022 Acoustic Guitar discussion]
  
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* It's a mistake to place stereo speakers too closely together. Not only does the area over which listeners hear stereo sound shrink but you can get undesirable interference effects caused when the same (or very nearly the same) signal is played simultaneously through two or more like speakers. (Multi-source interference can cause audible dropouts in tone.)
 
  
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* For these reasons, I'd recommend spacing L1 systems used for stereo at least 10' apart. There's competing interests here. A player located too close to one of the L1 systems spaced too far apart won't hear stereo &mdash;  but his or her audience will. On the other hand, space the L1 systems closer so that the player gets stereo and you won't project stereo to the audience.
 
  
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* A player located roughly between two spaced L1 systems will hear stereo well and many in the audience will too. 10-20' feels good to me for this kind of setup although I don't want to have this come across as more than a rule of thumb.
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== Acoustic Guitar and the Line6 Pod XTLive ==
  
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* The {{Compact}} uses a significantly shorter array than the {{Model I}} or {{Model I}}. As a result, it doesn't project sound as far. Said another way, the level falls off more rapidly with distance on the Compact. As a consequence, the stereo field won't be quite as large. This will translate I think to a smaller stereo sweet area for the player and for the audience. On the other hand, as has recently been pointed out on this forum, a player can buy two L1 Compacts for the price of one L1 Model I and can buy three for the price of a Model II and a T1 ToneMatch engine. For those that value a stereo instrumental sound, experimentation with the various L1 models is encourage.
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[[Image:XTLiveAmp.jpg]]
  
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[http://bose.infopop.cc/eve/forums/a/tpc/f/7521050644/m/756102391?r=759102391#759102391 Source: Ken-at-Bose]
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As a starting point for acoustic guitar with the XT Live, be sure that the footswitch for 'Amp' is switched off. Even if you have 'No Amp' selected for a model, I found that it makes a world of difference when I bypass the whole Amp circuit this way. (Prior to discovering this, I couldn't get an uncolored acoustic sound to start with.) From Chuck-at-Bose<ref>[http://bose.infopop.cc/eve/forums/a/tpc/f/630101665/m/7761075721?r=2281099531#2281099531 Chuck-at-Bose XT Live for Acoustic Guitar in the Bose® Musicians Community Message Boards]</ref>
  
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=== Mono ===
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{{:Acoustic Guitar Bass Frequencies}}
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Question:
 
  
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I noticed in the Compact Owners Guide (page 7), there are instructions on how to use more than one Compact to provide additional coverage in larger spaces.
 
  
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This is new. It hasn't been easy to do this with the Classic / Model I / Model II.
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== References ==
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=== Guitar Chord Explorer ===
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[http://www.michael-hogg.co.uk/gce.php Guitar Chord Explorer]
  
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There were recommendations that the minimum distance between two L1®s running the same source was 20-50 feet. (see: Multiple Source Interference).
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=== Pickups ===
  
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We know that the Compact performs differently than the other models, so does this mean that this recommendation is no longer applicable?
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[http://www.dougyoungguitar.com/pickuptests/ Acoustic Guitar Pickup Comparisons]
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: This page has a collection of sound samples that capture and compare the sounds of different acoustic guitar pickups. The approach is to record each pickup, directly into a digital recorder, so that you can hear what the pickup itself sounds like. Although I was originally inspired to create these tests by web posts where people asked about using pickups for home recording, It's important to understand that pickups are best suited for live performance. Most people will agree that pickups cannot compete with a good microphone for serious recording. At the same time, many people would like to use pickups for home recording, both as a convenience, and as a way to avoid the need for a good sounding room, expensive microphones, isolation from noises, and so on.
  
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[http://www.fingerpick.com/pickups.htm Pickups at fingerpick.com] - Excellent, comprehensive article about pickups and microphones for use with Guitar.
  
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Answer:
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=== Guitar Tips ===
  
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* Whenever you feed an identical signal to two or more like sources you must ask the question: will I get undesirable interference? Will I get unwanted dropouts in tone?
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[http://www.youtube.com/watch?v=plU27QJBKn8 Elixir® Strings Tech Tip: Guitar Cleaning and Maintenance Techniques (Part 1)]
  
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* The most important application for an "identical signal feeding two or more like speakers" is when covering a large area. A good example would be an audience of 1,000 or more seated for a graduation ceremony. A distributed system of several L1 systems all fed with the same signal is perfectly appropriate. We make it very easy in the L1 Compact to do this with the line output jacks on the back. You can easily daisy chain them.
 
  
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* I can't think of a situation like this where you would want to space the L1 Compacts (or any other L1 system) closer than 20' and thus I see no issue with undesirable multi-source interference. I think that spacing closer to the 50' mark would be more typical in terms of covering large audiences. Said another way, I don't think an L1 Compact has trouble throwing up to 50'.
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=== Tone ===
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* [http://www.pantheonguitars.com/tonewoods.htm Tapping Tonewoods - Dana Bourgeois]
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*[http://www.taylorguitars.com/guitars/features/woods/Tone/ Acoustic Guitar Tone] &mdash; Taylor Guitars<br />[[Image:Tone-Graph.jpg]]
  
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* As said above "The {{Compact}} uses a significantly shorter array than the {{Model I}} or {{Model II}}. As a result, it doesn't project sound as far." Thus, spacing of multiple {{Compact}}s would be somewhat less than the spacing of multiple Model I or Model II systems.
 
  
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<references/>
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[[category:Effects]]
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[[Category:Guitar]]
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[[Category:Instrument]]
  
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[http://bose.infopop.cc/eve/forums/a/tpc/f/7521050644/m/756102391?r=750103391#750103391 Source: Ken-at-Bose]
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[[category:Pickups]]
  
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[[Category:Acoustic Guitar]]
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[[Category:Stereo]]
 
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[[Category:Mono]]
 

Latest revision as of 09:31, 21 October 2009

ST's Morgan with L1

Pickups and Systems

Fishman Aura

"If you want high gain, you would use all pickup and no mic on the blender."[1]

"You can have all pickup (no Aura sound image) or all Aura sound image (no pickup)... or blend them together in steps... The sound image is only 'one side'... if you look at it that way. If you blend to pickup only, you only hear the pickup... its like by-passing the Aura."

Owners Talking

There is a very interesting discussion[2] about pickups and preamp systems from D-Tar, Fishman, K & K, LR Baggs and others.

See: Acoustic Guitar discussion


Acoustic Guitar and the Line6 Pod XTLive

XTLiveAmp.jpg

As a starting point for acoustic guitar with the XT Live, be sure that the footswitch for 'Amp' is switched off. Even if you have 'No Amp' selected for a model, I found that it makes a world of difference when I bypass the whole Amp circuit this way. (Prior to discovering this, I couldn't get an uncolored acoustic sound to start with.) From Chuck-at-Bose[3]

Acoustic Guitar Bass Frequencies

Hilmar-at-Bose Speaks about B1s and Acoustic Guitar[4]

Oldghm[5], you did some really interesting experiments there. However, you have to be really careful when using an RTA. You can feed these things a pure sine wave at 80 Hz and by turning it up make the 63 Hz and even the 40Hz LED light up. They will be lower than the 80 Hz LED, but still come on. That does NOT mean, that the sine wave contains any other frequency than 80 Hz (it certainly doesn’t). It only means that the RTA has a pretty limited frequency resolution. The 63 Hz LED will respond best to 63 Hz signal but it’s in no way “blind” to 80 Hz signal. Thus being said, the actual frequency content is not easy to determine. All sounds that have a pitch are certainly constraint to 80 Hz and up (in standard tuning) and there isn’t actually too much energy at the fundamental. However, the “non-pitched” sounds like a hard string attack or whacking the top with your hand can very well have lower frequencies. Unfortunately, I don’t have any hard data on that, but we will measure that at some point.



References

Guitar Chord Explorer

Guitar Chord Explorer

Pickups

Acoustic Guitar Pickup Comparisons

This page has a collection of sound samples that capture and compare the sounds of different acoustic guitar pickups. The approach is to record each pickup, directly into a digital recorder, so that you can hear what the pickup itself sounds like. Although I was originally inspired to create these tests by web posts where people asked about using pickups for home recording, It's important to understand that pickups are best suited for live performance. Most people will agree that pickups cannot compete with a good microphone for serious recording. At the same time, many people would like to use pickups for home recording, both as a convenience, and as a way to avoid the need for a good sounding room, expensive microphones, isolation from noises, and so on.

Pickups at fingerpick.com - Excellent, comprehensive article about pickups and microphones for use with Guitar.

Guitar Tips

Elixir® Strings Tech Tip: Guitar Cleaning and Maintenance Techniques (Part 1)


Tone


  1. ↑ Fishman Aura Post in the Bose® Musicians Community Message Boards
  2. ↑ Acoustic Guitar discussion in the Bose® Musicians Community Message Boards
  3. ↑ Chuck-at-Bose XT Live for Acoustic Guitar in the Bose® Musicians Community Message Boards
  4. ↑ Hilmar-at-Bose PackLite Questions
  5. ↑ Oldghm comment on using an RTA PackLite Questions
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