1. What is the purpose of this FAQ? 2. What is a talkbox? 3. Is a talkbox the same as a vocoder? 4. What is a talkbox driver? 5. I built a "ghetto talkbox". Why doesn't it work very good? 6. It's easier and cheaper just to buy one, right? 7. What kind of driver do I need for building a good talkbox? 8. How loud should I play my talkbox? 9. Why do I need a microphone? 10. What is the proper length of tubing? 11. What is the proper size of tubing? 12. How should I position the tube in my mouth? 13. How come my words aren't clear? 14. Do I have to have a Yamaha DX100? 15. What kind of tone do I need for my keyboard? 16. Will playing the talkbox damage my mouth or dental work? 17. Can you teach me how to play "California Love"? 18. Does T-Pain use a talkbox? 19. I'm blind or visually impaired, but I want a talkbox. Will it be hard to set up for me?
1. What is the purpose of this FAQ? The purpose of this FAQ is not to necessarily dictate what's right and wrong about the talkbox, playing the talkbox, etc. but instead to provide some good general information. Over the past year, I have received hundreds of emails asking a lot of the same questions. My intent is to make a document that people can refer to that should answer most, if not all, of those questions.
2. What is a talkbox? Let's start with the basics. A talkbox is not really an instrument in and of itself; however, it requires such skill that it can almost be classified as such. A talkbox is a sound modifying device that uses the human vocal cavity - not the human voice - as its controller. When a sound is fed into a talkbox driver, that sound travels through an airtight vinyl tube which is placed in the performer's mouth. The shape of the sound can then be modified by the performer by moving his or her mouth and throat as if he or she were singing or talking. Some performers have perfected this to such a high level that very clear and distinct words and phrases can be heard - all with the tone and pitch of the instrument being played. Notable among them are Roger Troutman (some, including myself, still consider him the best!), Jeff Beck, Peter Frampton, Pete Drake, Stevie Wonder (briefly), Byron Chambers, Teddy Riley, Joe Walsh, etc.
3. Is a talkbox the same as a vocoder? While they may seem similar, the answer is NO. True, both can make 'talking synth/guitar' sounds, but they are are two completely different animals. A vocoder is an electronic device that consists of a network of tuned bandpass filters, each one connected to an envelope follower. It requires two input signals - a "carrier" and a "modulator". The "carrier" signal would be your guitar, keyboard, or whatever else (sometimes it's fun to use a drum machine!), and the "modulator" in this case would be your voice talking/singing into a microphone. The different frequencies in the sound of your voice pass through the bandpass filters, which trigger the envelope followers to let the sound of the "carrier" through in that frequency range. The result is that the "carrier" now has the characteristics of your voice - the "modulator". Sounds complicated....probably because it is. Hardware vocoders, especially the higher-quality ones, can be quite expensive. A talkbox, on the other hand, is very simple and relatively inexpensive. It relies on basic physics rather than complicated electronics, and is no more complex than a guitar amplifier. Rather than actually talking or singing into a microphone to modify the instrument sound, with a talkbox, the instrument sound is directly injected into the mouth. This natural physical phenomenon makes the talkbox capable of much richer and more realistic vocal sounds, whereas the vocoder is better at special effects and robotic vocal sounds.
4. What is a talkbox driver? When somebody refers to a 'talkbox driver', what they mean is a horn driver, also known as a compression driver. This is a common PA speaker part. Most full-range PA speakers consist of at least one woofer (usually between 10" and 15" in size) and a horn, which handles the mid to high frequencies. If you were to take this speaker apart, you would see a compression driver attached to the back of the horn - which just screws on to the throat of the driver. For talkbox use, there are several models (which I'll mention later) that are preferred. Not just any horn driver will give a good result - it all depends on the frequency response and power handling of the driver.
5. I built a "ghetto talkbox". Why doesn't it work very good? Oh boy. You had to go asking that question. Well.....the biggest reason that a "ghetto" talkbox will never sound as good as the real thing is because it does not use a real horn driver - the key component of a "real" talkbox. Is it fun to build? Oh yeah! Because you probably have most of the parts lying around your house! Does it sound good? Probably not. Can it sound good? Not really. The way I made mine sound decent on the videos was through a ton of post-processing (EQ and compression). Straight out, it certainly does not sound that good! You are most likely going to get a weak-sounding talkbox that leaks sound very badly - no matter how tight you tape or seal it! The only way to get a completely airtight seal is to use a horn driver, period.
6. It's easier and cheaper just to buy a talkbox, right? Easier, yes. Cheaper, not at all. You can certainly build a talkbox, including amp, driver, tubing, connectors, and wire, for less than it costs to buy a good pre-made talkbox. However, if you don't want to spend the time and effort, and want a decent pre-made box, I have a couple of suggestions. First of all, stay AWAY from the Danelectro Free Speech. There are about a million reasons why this is the worst talkbox in history, starting with the special tube design that only sort of works. Also, there is really no need to go for a 'Supertalker' talkbox, as those use MCM drivers which can be bought for less than $40 USD! The only thing that makes them nice is the custom tube connectors, but last time I checked, they actually sell those separately. I would recommend the Framptone talkbox, endorsed by Peter Frampton, but you pay an awful lot for the name. Not necessary. The Heil sound talkbox is pretty decent, but there are drivers out there that are certainly better. The one to go for, especially for a beginner, is the Rocktron Banshee. It's self-amplified, self-contained, and has a pretty good sound. Great for starters.
7. What kind of driver do I need for building a good talkbox? When shopping for a horn driver for use as a talkbox, there are a couple of things you should look for. First of all, check out the frequency response. It needs to be a midrange driver - a high frequency driver will not work very well. The low frequency response needs to be at least 600Hz or lower - I recommend much lower. Look for one that goes down to at least 250Hz. The aforementioned MCM driver (model DU-40) goes all the way down to 100Hz! The high frequency response may vary, but generally around 6-8kHz is fine. The other thing to check out is the power handling - the wattage. About 40w is plenty - it's not a good idea to use your talkbox at extremely loud volumes. If the driver can handle more than 40w, great. More headroom is not a bad thing! You may also want to bear in mind the impedance (ohms) of the driver - most horn drivers are either 8 or 16 ohms. It's always a good idea to match the impedance between your amp and driver. Here are some of the driver models that are best for talkbox: Electro-Voice 1823m (This is the classic 'Golden Throat' driver) Electro-Voice 1824m (a smoother-sounding version of the 1823m) MCM DU-40 (the best low frequency response!) MCM 54-060 (the 60w version of the DU-40) Pyle Pro PDS 772 (a nice clean-sounding driver) Selenium D250-X
8. How loud should I play my talkbox? My general rule is, how loud can you sing or talk (not screaming)? That is about the maximum volume you should run your talkbox at, too. While it may not really hurt you to play it louder, remember that the human mouth and throat were only designed to handle a certain amount of sound pressure. Putting something that sounds like a jet taking off in your mouth is not a good idea! Playing the talkbox at low volumes is ok to do, but you may find that you can't really make certain sounds until you open the driver up more - so put a decent volume through it! Also, when recording, talkboxing at low levels can make your mouth noises more obvious.
9. Why do I need a microphone? Well, the truth is, you really don't need a microphone to enjoy the talkbox! You can play the talkbox without a microphone with no problem. The only times you will need a microphone are (1) If you use the talkbox in live performance; or (2) if you want to record your talkboxing. (1). You can make your talkbox pretty loud, sure. But it's never a good idea to try to use it live without a microphone. Do you sing at your live shows without a microphone? Probably not, unless it's around a campfire or in a very small venue. You wouldn't want to talkbox live without a microphone for the same reason - people can't hear it properly without amplification. (2). Of course, when you want to record yourself singing, you use a microphone, right? So far, that's the most effective way to preserve the human voice on a recording. The same is true for the talkbox. Treat it just like you would if you were singing!
10. What is the proper length of tubing? There really is no rule here. In my opinion, shorter is better, because it allows more sound pressure to reach your mouth from the driver. You may find that very long tube lengths reduces the effectiveness of your talkbox, making you have to turn the volume up, and adjust the EQ of your amp to have a more robust sound. The bottom line is, use only what is necessary to get the sound from the driver to your mouth, with the talkbox sitting on the floor.
11. What is the proper size of tubing? Once again, there really is no rule, but the two sizes that are most commonly used (and the only two sizes that I recommend ever using) are: 5/8" O.D. (outside diameter) and 1/2" O.D. The most common size is the 1/2" OD, and that is what I recommend to beginners - it is easier to get clear diction with that size of tube in your mouth. In the US, you should be able to find WATTS plumbing parts at any home supply store. Get the yellow color-coded tubing. Buy plenty - you will always want to have extra, because it's a good idea to change out your tubing once in awhile. The larger size, 5/8" OD, is nice for a fatter tone, because more air goes through the tube, and just the physics of a larger column of air yields a slightly different harmonic balance. I find this size harder to talk with, but after some practice it becomes more natural. Find which size works for you, and get comfortable with it! Another note about tubing: don't use the cheapo tubing that is used in commercial drink machines. My friend DJ Mpact found this out the hard way! The cheaper, more flexible vinyl tubing tends to transfer vibrations much more intensely, which could result in an intense headache! Use nice quality plumbing-grade vinyl tubing.
12. How should I position the tube in my mouth? There is no rule about which side of the mouth to use, but most tend to go for the left side, which is what I do. Hold the tube gently between your molars, biting it ever so slightly so it doesn't slip out of your mouth, but not so hard that it chokes off the sound coming through it. You may have to angle it a bit away from or toward your cheek, depending on your mouth shape. Some trial and error is involved here, just changing the position and seeing what works. Once you find the right position, you will be surprised how quickly it becomes instinct to put the tube in your mouth in that spot.
13. How come my words aren't clear? There are many reasons for this. It could be that the tone you are getting from your keyboard or guitar is not bright enough - that is, not rich enough in harmonics. The brighter and 'buzzier' the tone coming into the driver, the easier it is to sound clear with the voice - in most cases. This would mean that if you are playing guitar, you could try adding a little distortion and using the bridge position pickup; with a keyboard, use a bright, harmonic sound such as a sawtooth - this is addressed in detail in question 13. The biggest reason why words aren't clear is bad tube placement, bad pronunciation, and not adding in the consonant sounds. Try whispering the words "take a break", but do it without actually exhaling any air. Notice something? The only sounds you hear are the 't', 'k', and 'b'. This is because those consonant sounds are not made by your voice or breath - they are made by your lips and tongue. When 'singing' actual words with the talkbox, you have to add those sounds in there - otherwise no one will be able to understand what you're saying. It will come across as just a bunch of phonetic sounds instead of words. Practice adding in the sounds that your lips, tongue, and teeth make. It will make a huge difference in your talkboxing.
14. Do I have to have a Yamaha DX100? The answer is NO! While the DX100 is one of the best, it's certainly not the only one that's any good. The main reasons that people want a DX100 are: - Somebody on eBay said it was the only keyboard that can get that tone I want! - Roger Troutman used it. It was the keyboard that he used on the 2Pac classic "California Love", and on most of his recordings and live performances after that. - It's small and portable. It can even run on batteries! You can take it anywhere! - It's nice for live performance. It looks good on stage, and the pitch and modulation wheels are in a comfortable position, right on the top. - It's cheap. WHOA. Wait a second. Make that, it WAS cheap. DX100's are probably going to get more and more expensive, so if you really feel that you MUST have one, now is the time to get one...while they are still financially in reach. If you're not hung up on having the 'sacred cow' of talkbox, you're in luck. There are lots and lots of other synthesizers out there that can get great tones for talkbox. The entire Yamaha DX range is capable of the making the same sounds that the DX100 can. These include: DX7, TX7, DX9, DX11, DX21, DX27, TX81Z, etc. Other synthesizers that are particularly good for talkbox are: Moog Minimoog (in my opinion, it's THE BEST! It is also the most expensive.), Moog Little Phatty, Moog Voyager, Casio CZ series, Korg MS2000, Korg Microkorg, Nord Lead, Alesis Ion, etc....I'm sure there are more out there. Just about any monophonic analog synth will do a good job, but some are better than others.
15. What kind of tone do I need for my keyboard? The type of talkbox tone you need is partly a matter of taste, and partly a matter of plain ol' physics. The sounds that work best are ones that are rich in harmonics. The sound that is the most harmonically rich is the sawtooth wave. In the typical setup, a sawtooth wave is used, with no filtering being added on the keyboard (that is, the filter cutoff being all the way, or almost all the way, maxed out). No effects such as reverb, chorus, or delay should be used, as those can 'smear' the sound and make words less intelligible. The sound should be monophonic, which means that the keyboard should only play one note at a time - like the human voice. It is preferable to have a pitch bend wheel - learning how to make expressive pitch bends is key to making good music with the talkbox. Also, if available, use the modulation wheel to add some pitch vibrato to certain notes. Which ones are up to you, but just bear in mind that the goal is to sound like a human voice. Putting crazy vibrato on every note is only going to sound one way...crazy!! (Not that there's really anything wrong with that ;-) Every keyboard or synthesizer is different, and the way you arrive at your sound is completely up to you. This is simply a guideline to give you something to aim for. Consult your manual, read some stuff online, whatever it takes...but you can do it!
16. Will playing the talkbox damage my mouth or dental work? No it will not! There has long been a myth that playing the talkbox can rattle your fillings loose, or your teeth, and all kinds of stuff like that. Well, I can safely say that it's not true! I can't imagine what kind of sound pressure it would take to dismantle someone's fillings, but I am certain that it's more than anybody would ever, ever use normally. Again, I will reiterate that the main rule of thumb to go by is this: if your talkbox is louder than you can sing at full volume, turn it down.
17. Can you teach me how to play "California Love"? Nope.
18. Does T-Pain use a talkbox? No, he does not! T-Pain uses a vocal effect called Auto-Tune to make his voice have that characteristic robotic sound. He has gone on record to say that he does it to emulate the talkbox, as he is a fan of Roger Troutman, but he does not actually play the talkbox himself.
19. I'm blind or visually impaired, but I want a talkbox. Will it be hard to set up for me? This question was suggested for the FAQ by musician Duyahn Walker, who is blind. He explained to me that he had a custom talkbox, but it was hard for him to set up by himself because of all the different parts (driver, amp, tubing, speaker wires, etc). A good solution here is, as he has done, use an "all-in-one" talkbox such as the Rocktron Banshee. The sound is not quite the same as a customized system, but it is certainly good, and it will be worth it not to have a lot of cumbersome gear to set up.
Did this FAQ help you in any way? Do you have questions that I didn't cover? Send me an email and tell me what's up!
Thank you for reading! MooT BooXLé 23 February 2008
This document represents my own work and is subject to copyright law. Reproducing this work in full or in part, for any reason other than personal reference, without my written consent, is strictly prohibited. Y'hear? (c) 2008 MooT BooXLé.