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Old 01-09-2003, 03:44 AM
BillyT BillyT is offline
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Default So You Want To Be A Digital DJ (Part 1)

So your thinking about becoming a Digital DJ and don't know where to start. Feeling overwhelmed about the many choices, or you may even be asking what are my choices. Well, you are not alone; most of us that have become Digital DJ's have faced the same questions you may be asking yourself. Unfortunately, there are no clear-cut answers to your questions. Although I don’t have all the answers, I have decided to try and give an overview to possibly help resolve some of the questions that arise when contemplating the move to Digital DJ’ing. This is Part 1 of “So You Want To Be A Digital DJ”. Anyone that may have any additional input please feel free to respond here on the Board, e-mail or PM me.

So let’s get started, initially you will need a computer; there are 3 choices you can choose from, a desktop, laptop or rack mount. In general, Desktops are bulky and take several trips to carry into the venue; they also take up more room on your DJ table. Pro’s, Desktop computers have more memory, bigger hard drives and better soundcard and video cards. Laptops are small and compact requiring only one trip into the venue, but usually lag behind in technology with smaller amounts of memory, smaller hard drives and bare minimum sound and video cards. Rack mounts are computers that are mounted inside your portable rack and usually have all the mainstream features of desktops. At this point rack mount computers are costly unless you build one yourself. (Rack mount model examples can be seen here http://www.visiosonic.com/Products/DJRak.asp)

Before you decide which type of computer you will purchase you should decide on what software programs you might use. Each software program requires different minimum requirements and you should pay attention to those requirements to help prevent problems later. Most software program web sites have their own forum board that deal with specific issues that its users are encountering. Reading and searching these boards will give you some insight into the products problems and in some cases how to resolve specific issues.

One of the most important aspects, (in my opinion) of purchasing a computer is hard drive space. You need to have a big hard to carry your MP3's. I would not settle for anything less than a 120GB hard drive. This will allow for future expansion of your music library and allow you to convert your music at any bit rate. Generally, a 60GB hard drive will hold about 15,000 MP3's converted at 128kbps.

Memory also plays a big role when selecting a computer. Again, each software program details minimum requirements that it needs to run properly. As computers progress, we find that manufacturers are including bigger amounts of memory and basic operating systems are taking better advantage of installed memory. Keep in mind that desktops and rack mounts will have more memory than laptops. I, personally, would never buy a computer with less than 256Meg of memory.

Although there are many brands of computers on the market, there are only a few types of processors that most manufacturers install, Intel, AMD, and Cryix. Again, each software program utilizes the processors code in different ways. Some software programs don’t run well with AMD processors and others do run well. The preferred processor for MP3 software is Intel and programmers are able to take better advantage of the codes these processors use. Again, each software program requires different minimum requirements and you should pay attention to those requirements.

Soundcards are another big consideration when deciding what to purchase. There are many soundcards available on today’s market, SoundBlaster, Maya, Turtle, Gigaport and the list goes on and on. Soundcard preference will be at the discretion of the manufacturer of the software program, so, again, you should consider what software program you might use and research what the program manufacturer considers as the preferred soundcard.

Right now, there are about 16 different MP3 software programs on the market, I am sure there is more, I’ll search them out and next week I will try to outline the MP3 software available and provide web site links to each of the programs. Until then!

Have a Happy Digital Day!

[ January 09, 2003, 06:57 PM: Message edited by: BillyT ]
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Old 01-09-2003, 04:21 AM
DJ Ed DJ Ed is offline
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Great job, Billy -
Please 'borrow' from my FAQ if you like.
djed.com/mp3.htm

Thanks!

A fellow PCDJ/Visio junkie
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Old 01-09-2003, 04:41 AM
BillyT BillyT is offline
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DJ Ed,

Thanks I'll look it over and see what I can use.

Thank You Ed

Enjoy!
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Old 01-11-2003, 08:22 AM
MusicMixers MusicMixers is offline
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Just wondering about the gear in particular:

if using an mp3 controller (like the Numark PCDJ sells) do you even need a monitor? Web site says you can do without keyboard and mouse this way but no mention on the monitor I could find. I would think the less your set up looked like a PC the more pro it would look.

While on the subject, what are the alternatives to PCDJ? Are any worth the look? Maybe I should start a topic: "digital Djing for dummies" LOL..
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Old 01-11-2003, 11:02 AM
BillyT BillyT is offline
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Les,

You can use the product made by Numark, and you do not need a monitor, but I find I like the mouse keyboard combination much better.

There are many alternatives to PCDJ and in my next installment of "So You Want To Be A DJ (Part 2), I will talk about 16 different programs that could be an alternative.

The next installment should be out about the middle of next week.

Enjoy!
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Old 01-11-2003, 05:58 PM
JX2 Productions JX2 Productions is offline
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Just figured i would add this in, For Les, I use PCDJ Red and yes you do need a monitor for the fact that you have to drag and drop your mp3 music files. I find that it does need a minimum of 256meg ram to run. It works great and has and auto fader etc. We are trying to go all digital. I will keep you updated if we find ne more programs.
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Old 01-11-2003, 08:10 PM
Jim Casey Jim Casey is offline
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My question.

I have hear you need to rip at 192...is this true?
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Old 01-12-2003, 10:25 AM
BillyT BillyT is offline
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Jim, generally speaking, the most common bitrates for stereo are as follows, from lowest to highest:

64 96 128 160 192 256 320

The highest available bitrate is 320. The number represents how many kilobits per second are being processed. I don't consider this piece of information essential to know, though.

MP3 files with higher bitrates have the highest sound quality, but they will be larger in size.

MP3 files with lower bitrates will not have the best sound quality, but the files will be smaller.

In almost every case, selecting a bitrate is a judgment call on your part. I personally use 160, however, I have many ripped songs at 128 and some of them sound better than the CD. I never would recommend 64 or 96 they just sound crappy.
Here's a chart that shows how bitrates, sound quality, and file size all relate to each other.

Bitrate Sound Quality File Size (per one minute of sound)

320 ----Highest Quality ---- Largest for MP3 Files
256 ----High Quality ----- Very Large: Over 2.0 MB
192 ----Excellent -------- Larger: Over 1.5 MB
160 ----Very Good -------- Large: 1.5 MB
128 ----Good ------------- Standard: 1 MB
96 ----Fair ------------- Small: 700 KB
64 ----Low --------------Smallest Possible: 400 KB

Here's one more chart. It shows the difference in MP3 file sizes for a song running time of roughly three minutes.

Bitrate ---------------Size of File
320 --------------------7.38 MB
256 --------------------6.73 MB
196 --------------------4.43 MB
160 --------------------3.69 MB
128 --------------------2.95 MB
96 --------------------2.21 MB
64 --------------------1.48 MB

Hopefully, it can give you an idea of how an MP3 file's size depends on bitrates and levels of compression.

Hope that helps.

Have A Happy Digital Day
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Old 01-12-2003, 10:31 AM
BillyT BillyT is offline
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Andrew,

I miss understood the post about a monitor. I thought Les was talking about a sound monitor, I did not realize he was talking about a computer monitor. You definitely need some sort of computer monitor to run any of the digital programs on todays market.

Thanks.
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Old 01-12-2003, 11:51 AM
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The bitrate you rip at should be the best possible compromise between quality and space.

Obviously, if the rip/encode sounds great at a given bitrate, there is no need to encode at a higher bitrate.

I use Exact Audio Copy, and Lame 3.92, in secure mode (I rip with a Plextor drive - hands down the best, and it reads CD+G, too), at q-2 Variable Bitrate setting. This gives me an average of about 200kbps, but I get plenty of 320kbps samples, some 160k, and some 128k...it sounds perfect to me. And I *do* hear how crappy 128k (and some 160k) sounds, BTW (it is not just a "psychological" thing, contrary to what some are saying out there. Just listen to cymbals...nasty nasty nasty at 128k!)

Drive space and Clock Speed is so cheap nowadays, that quality can be the only real consideration - so why not just rip at 320k? My main reason for not doing so is convenience in backing it all up.

Until that 1-Terabyte CD-R comes out next year, we will have to live in this reality.
 
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