Kenwood DNX7140 USB Playback Issues

blacksandtaco · 05-17-2009, 07:17 PM

Hey guys! I'm having issues with the MP3 files playing on my Kenwood DNX7140 via jump drive. There are certain files that the Kenwood skips over and will not play. The head unit recognizes the file but it won't play for some reason. I also noticed the head unit recognizes and lists files in the order in which they are added to the drive, rather than in alphabetical order which is very annoying when trying to search for files. Has anyone had similar issues?

nermalgod · 05-17-2009, 07:40 PM

Have you compared the files that won't play? Are they of a similar format, like AAC; something your computer can play but the Kenwood can't?

blacksandtaco · 05-18-2009, 08:16 AM

I've tried to compare the files but can't seem to distinguish any similarities/differences. I'm pretty sure they are the same format (MP3) and noticed that the file size is rather large. However, I have larger files that will play. I wonder if it has anything to do with the ID3 tagging?

sooner07 · 05-18-2009, 12:43 PM

Could be that they are the older v1.1 tagging instead of v1.3 or how ever they are labeled these days.

It may also be that they are variable bit rate files or even that they are in a bitrate higher than 256k or 320k.

Try comparing them in a player like winamp and see what the bitrate is.

senor taco · 05-18-2009, 12:51 PM

Have you updated the firmware you can down load it from kenwood website

blacksandtaco · 05-18-2009, 01:14 PM

I wasn't aware of any new firmware upgrades for this unit as it was just launched in March. I might need to check the bitrate because I imagine it is higher than normal.

blacksandtaco · 05-19-2009, 10:44 AM

I got some additional audio file specs that aren't listed in the owner's manual from www.kenwood.com/audiofile/ and it appears as though mp3 files need to be broadcast/produced in "Joint Stereo" for the head unit to play them correctly. Coincidentally, the two files that won't play are "Stereo" and "Mono". So, I'm not sure if this is the reason, but I can't help but think that it has something to do with it.

I'm still not sure why the head unit recognizes files in "folder list" view as the order they were added to the drive and not alphabetically. Anyone else notice this on any of the DNX models?

blacksandtaco · 05-21-2009, 02:41 PM

Thanks for the advice everyone. I think I figured it out. Apparently the head unit doesn't recognize files like a normal computer would but rather it sorts files in the order they were added to the jump drive. I've read around some other forums that suggest using a software that will allow you to change the order in which a jump drive is read through the head unit. I will follow up on this if it works. Thanks!

4x4Taco · 05-22-2009, 10:30 AM

Good luck...I actuallly like that "feature" as when I put together a MP3 drive for the Taco I control the order of titles just by how they are added to the drive. Once you are aware of it I think it works to your advantage.

blacksandtaco · 05-22-2009, 12:12 PM

Agreed, it can be useful for those who like to control their files that way. I like to be able to locate a file by genre and then artist so being able to list alphabetically gives me a quick search. Also, not all of my files are ID3 tagged properly, not the right genre or album name, etc. So I can only use the folder list option compared to the play list option. Currently when I want to add a new file here and there, I have to add all the original files plus the new ones at the same time in order for it to remain alphabetical and that is more time consuming than I'd like. I'm not sure if this will fix it but I'm hopeful that it will.

05-17-2009, 07:17 PM	#1
blacksandtaco Senior Member Joined: Feb 2009, #13895 Location: Kansas Gender: Guy Posts: 127 07 Access TRD Sport 4X4 2007 Access Cab Automatic 4.0 L V6 Viper Remote Start/Alarm	Kenwood DNX7140 USB Playback Issues Hey guys! I'm having issues with the MP3 files playing on my Kenwood DNX7140 via jump drive. There are certain files that the Kenwood skips over and will not play. The head unit recognizes the file but it won't play for some reason. I also noticed the head unit recognizes and lists files in the order in which they are added to the drive, rather than in alphabetical order which is very annoying when trying to search for files. Has anyone had similar issues?

05-18-2009, 12:43 PM	#4
sooner07 1/2 man 1/2 amazing Joined: Feb 2008, #4783 Location: Dallas, Texas Age: 28 Gender: Male Posts: 1,200 Debardged 2008 Rugged Trail 2008 Double Cab Automatic 4.0 L V6 Working on the stereo, painted the front skid plate black to match the truck, debadged Looking into a supercharger and new exhaust.	Could be that they are the older v1.1 tagging instead of v1.3 or how ever they are labeled these days. It may also be that they are variable bit rate files or even that they are in a bitrate higher than 256k or 320k. Try comparing them in a player like winamp and see what the bitrate is. __________________ There are only 10 types of people in this world... those that understand binary and those who don't.

05-18-2009, 12:51 PM	#5
senor taco Senior Member Joined: Jan 2009, #12330 Location: Monterey Bay, Ca Age: 26 Gender: Male Posts: 656 O7 taco PreRunner SR5 short bed 2007 Double Cab Automatic V6 4.0 17in fj cruiser wheels Chrome 4 pice billet grille Single in double out 50 series flowmaster with stainless tips Kenwod ddx512 double din touch screen DVD reciver with a single Rockford fosgate 12 in sub with an alpine amp tinted tail and third break light silverstar head and fog lights k&n drop in	Have you updated the firmware you can down load it from kenwood website __________________

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05-17-2009, 07:40 PM	#2
nermalgod Member Joined: May 2008, #6715 Location: Madison, WI Posts: 77 Offroad boat hauler 2006 Access Cab Manual Not going to brag.	Have you compared the files that won't play? Are they of a similar format, like AAC; something your computer can play but the Kenwood can't?

05-18-2009, 08:16 AM	#3
blacksandtaco Senior Member Joined: Feb 2009, #13895 Location: Kansas Gender: Guy Posts: 127 07 Access TRD Sport 4X4 2007 Access Cab Automatic 4.0 L V6 Viper Remote Start/Alarm	I've tried to compare the files but can't seem to distinguish any similarities/differences. I'm pretty sure they are the same format (MP3) and noticed that the file size is rather large. However, I have larger files that will play. I wonder if it has anything to do with the ID3 tagging?

05-18-2009, 01:14 PM	#6
blacksandtaco Senior Member Joined: Feb 2009, #13895 Location: Kansas Gender: Guy Posts: 127 07 Access TRD Sport 4X4 2007 Access Cab Automatic 4.0 L V6 Viper Remote Start/Alarm	I wasn't aware of any new firmware upgrades for this unit as it was just launched in March. I might need to check the bitrate because I imagine it is higher than normal.

05-19-2009, 10:44 AM	#7
blacksandtaco Senior Member Joined: Feb 2009, #13895 Location: Kansas Gender: Guy Posts: 127 07 Access TRD Sport 4X4 2007 Access Cab Automatic 4.0 L V6 Viper Remote Start/Alarm	I got some additional audio file specs that aren't listed in the owner's manual from www.kenwood.com/audiofile/ and it appears as though mp3 files need to be broadcast/produced in "Joint Stereo" for the head unit to play them correctly. Coincidentally, the two files that won't play are "Stereo" and "Mono". So, I'm not sure if this is the reason, but I can't help but think that it has something to do with it. I'm still not sure why the head unit recognizes files in "folder list" view as the order they were added to the drive and not alphabetically. Anyone else notice this on any of the DNX models?

05-21-2009, 02:41 PM	#8
blacksandtaco Senior Member Joined: Feb 2009, #13895 Location: Kansas Gender: Guy Posts: 127 07 Access TRD Sport 4X4 2007 Access Cab Automatic 4.0 L V6 Viper Remote Start/Alarm	Thanks for the advice everyone. I think I figured it out. Apparently the head unit doesn't recognize files like a normal computer would but rather it sorts files in the order they were added to the jump drive. I've read around some other forums that suggest using a software that will allow you to change the order in which a jump drive is read through the head unit. I will follow up on this if it works. Thanks!

05-22-2009, 10:30 AM	#9
4x4Taco Senior Member Joined: Feb 2007, #976 Location: Ontario Gender: Male Posts: 141 07 TRD Off-Road 4X4 2007 Access Cab Automatic 4.0	Good luck...I actuallly like that "feature" as when I put together a MP3 drive for the Taco I control the order of titles just by how they are added to the drive. Once you are aware of it I think it works to your advantage.

05-22-2009, 12:12 PM	#10
blacksandtaco Senior Member Joined: Feb 2009, #13895 Location: Kansas Gender: Guy Posts: 127 07 Access TRD Sport 4X4 2007 Access Cab Automatic 4.0 L V6 Viper Remote Start/Alarm	Agreed, it can be useful for those who like to control their files that way. I like to be able to locate a file by genre and then artist so being able to list alphabetically gives me a quick search. Also, not all of my files are ID3 tagged properly, not the right genre or album name, etc. So I can only use the folder list option compared to the play list option. Currently when I want to add a new file here and there, I have to add all the original files plus the new ones at the same time in order for it to remain alphabetical and that is more time consuming than I'd like. I'm not sure if this will fix it but I'm hopeful that it will.