ページ1に含まれる内容の要旨 
                    
                         
 
 
 
 
Using a Dell DJ MP3 player 
for field playback of bird songs 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Stuart Healy 
Western U.S. Bird Guide, 
 Specializing in Southeast Arizona and the White Mountains 
 
220 Stardust Street, Sierra Vista, AZ 85635 
Tel: (520) 458-7603  Fax: (520) 458-7353 
E-mail: stuarthealy@earthlink.net   Web: http://www.aztrogon.com
                                                                                                                                                
                    
                    ページ2に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005      Table of Contents  INTRODUCTION........................................................................................................................................3  Original Requirements ............................................................................................................................3  Compromises ...................................................
                    
                    ページ3に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    INTRODUCTION    This document describes my experiences configuring and using a Dell DJ MP3 player for field playback  of bird songs in the course of my work. Topics covered include how I went about defining what I wanted,  the compromises involved when I checked into what was on the market, the hardware and software that I  ended up using, how I implemented the project and the prac
                    
                    ページ4に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    HARDWARE    The Dell DJ 30 is a very compact and sleek unit that measures approximately 4 x 2.4 x 0.7 inches and  weighs 6.4 ounces. I use it with an optional soft carrying case which increases the weight to 7.6 ounces.  For output, I use a Radio Shack mini speaker-amplifier (catalog #277-1008C). The speaker-amp measures  3.5 x 2.75 x 1.4 (base), 1.2 (top) inches and weighs 5.4 oun
                    
                    ページ5に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    SOFTWARE    The Dell DJ ships with two software components.    Musicmatch Jukebox  This is the main component that facilitates the conversion of  CD tracks to MP3 files and provides  extensive features to catalog and “tag” the tracks prior to copying them to the Dell DJ.  I talk more about  this in the implementation section. The Jukebox can also play CDs and MP3 files on the compu
                    
                    ページ6に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    IMPLEMENTATION OVERVIEW    For me, as a guide, it’s imperative that I can access the song or call of a specific species as quickly as  possible before an opportunity passes by. No point in having tons of material on the MP3 player if I can’t  get to what I want quickly when the need arises.    With this in mind, I set about designing and implementing a scheme that would meet my nee
                    
                    ページ7に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    Before I got very far into the project, I looked at the Dell DJ features to see how they would fit with the  way I wanted to work in the field. What I required was to be able to get to a particular species as quickly  as possible after I turned on the player. I wanted to see a list of bird families which could then be selected  to display a list of birds in that family.       The m
                    
                    ページ8に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    Looking at the results    A picture is rumored to be worth a thousand words so I think it’s useful at this point to look at examples  of Musicmatch and DJ display screens    Musicmatch Screen 0 is a partial display of the Raw Birds library. The columnar fields are customizable  for content, width and display order (I’ve scrunched up the columns to fit the page).   © Copyright Stuar
                    
                    ページ9に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    DJ Screens 1-6 show the basic menus and navigation needed to access a specific species within a family.    Getting to a bird  All operations to select a bird are  done with my right thumb; almost  all operations are done with the  scroll-select dial (SSD).    1) The main menu can be reached  instantaneously no matter what  state the DJ is in by pressing the  home button.     2) Acc
                    
                    ページ10に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    SOFTWARE WORKFLOW    This section describes in detail how I used the Musicmatch software to achieve my objectives.     First, in order to efficiently evaluate the source material, I copied all the CDs to disk (in WAV format)  and created a master library using Musicmatch. Once I had the library, I created a hard copy index so I  could see at a glance all the species represented, du
                    
                    ページ11に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    Before starting the copy, you can set the disk file format from the recorder settings window (I use WAV  for ease of editing) and set the destination on disk from the Tracks Directory window.        © Copyright Stuart Healy                           www.aztrogon.com                                            Page 11 of 25                                                             
                    
                    ページ12に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    Step 2 – Add source tracks to Raw Birds Library    Adding tracks to a library in Musicmatch involves three basic steps: a) import the tracks; b) add tag  information; c) name the tracks.     Many music discs already contain the track names and other information that Musicmatch recognizes and  tags automatically. If not, Musicmatch provides an on line lookup service (free) for name,
                    
                    ページ13に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    After the tracks are added, the library display appears as shown in Musicmatch Screen 3.                                                         Now the work really begins, it’s time to add tag information using “Edit Track Information”. Tags should  be added in decreasing order of most tracks affected. First, the album name and disc # are added since  they apply to all tracks. Thi
                    
                    ページ14に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    Edit Track Information Checking the Album and Genre boxes in the “General Tab” allows data to be  entered for those categories (values are memorized and can be accessed via drop down boxes in future  sessions). The “More Tab” allows a specific disc to be entered in a multi disc set. Clicking OK applies the  Album, Genre and Disc # data to all selected tracks (in this case, all trac
                    
                    ページ15に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    Musicmatch Screen 6 shows a partial library display after assigning a family name to the first two tracks.  Selecting a track with a right click will get you to the rename operation where the task of tagging is  completed by typing a species name. Repeat, ad nausea.    In my case, I had 9 discs to work through and, needless to say, it took a while! Unfortunately, even more  work is
                    
                    ページ16に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    Step 3 – Edit audio tracks.    This is a relatively straightforward but very tedious task that has to be replicated for each track (twice or  more per track if you separate songs and calls). As I mentioned earlier, I use Adobe Premiere -- other  editors will differ in operation but should allow the same basic functions shown in the screenshot.       In Premiere, I import raw tracks
                    
                    ページ17に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    I saved the edited WAV files in folder Audio Files/Birds-Edited and sub folders organized by family as  shown in the following partial folder display. The MP3 format files subsequently created (see next page)  are organized identically within the MP3/Birds folder .     My naming convention for the species files is to use the four letter banding codes, adding “song”, “call”  and any
                    
                    ページ18に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    Step 4 – Convert edited tracks to MP3 format    This is another fairly straightforward task which is simplified by the ability to select multiple files for  simultaneous conversion. In fact, if you don’t organize files in family name folders as I do, all files could  be selected and converted in one fell swoop. Not my style though.     In the Musicmatch Screen 7 example, I’m conver
                    
                    ページ19に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005     Step 5 – Add MP3 files to Birds Library    Okay, now we’re getting close to creating a sausage after lots of handle cranking. This step is almost  identical to adding the source CD tracks to the “Raw Birds” library. In fact, it’s actually the same library  since, as I mentioned earlier, Musicmatch only supports one library.    Operationally, adding MP3 files to the library is iden
                    
                    ページ20に含まれる内容の要旨 
                    
                        Using a Dell DJ MP3 player for field playback of bird songs.                             Rev A2,  November, 2005    The Add Tracks window is shown in Musicmatch Screen 9. In this example I’ve selected View by Genre  and collapsed the display to show the “pseudo libraries”.      Copying tracks to the DJ is very simple -- expand the display, select all or specific tracks using the  standard select commands (CTRL click and SHIFT click) to pick out whatever you want. Click OK and  you’re done. The t