Transferred some cd audio onto my 32g SD card,Used a free programme to convert to MP3,

I suppose the programme could be my problem,but on some tracks there is "stutter" on playback - part of it is repeated momentarily.Swing audio fitted - is it just me??

Well, it could be a data rate thing. Did you have any other software running during the conversion?

No other programmes running.The fault is evident at different times of conversion.I do not know what bitrate the players are able to accept -looks like it will be trial and error-unless someone knows otherwise.........

 

I've got MP3s with various bitrates between 128 and 320. Some were ripped on my old Windows PC, others on my iMac. Various different programs used for ripping. They all play with no problems from SD card in my PID.

Have you tried playing them back on a computer/tablet/phone?

 

Something that has caused problems on other non-computer players for me is the file format or directory structure. Worth trying a freshly-formatted SD card, not having too many directory levels , and not too many files per directory.

Not sure what the files per directory and nesting limit is on the Swing, but my Roberts portable isn't happy with more than 500 files per directory or more than 8 levels. I've got close to 2000 tracks in the root directory on the PID, and that plays OK. No sub-directories.

12 hours ago, Clockworks said:

I've got MP3s with various bitrates between 128 and 320. Some were ripped on my old Windows PC, others on my iMac. Various different programs used for ripping. They all play with no problems from SD card in my PID.

Have you tried playing them back on a computer/tablet/phone?

 

Something that has caused problems on other non-computer players for me is the file format or directory structure. Worth trying a freshly-formatted SD card, not having too many directory levels , and not too many files per directory.

Not sure what the files per directory and nesting limit is on the Swing, but my Roberts portable isn't happy with more than 500 files per directory or more than 8 levels. I've got close to 2000 tracks in the root directory on the PID, and that plays OK. No sub-directories.

Thanks for your input...makes sense. Pc is obviously more adept at dealing with the more complex  separate files,Will try to enter tracks individually,and experiment with the bitrates.

Check that the original CDs play without errors on the same PC you ripped them on. 

 

Use a well-respected (free) ripper like Exact Audio Copy. 320kb/s files can be played on anything made in the last 20 years - it is a relatively low compute load...

 

Always best to make a file structure that is say music/artist/album/tracks, even if there is only one track you want off a given CD. When naming files, or tagging the metadata, being minimalist is good. For example there is no need for the filename of an MP3 track to be more than for example "01 - Song Name.mp3", because all the other info is in the metadata. I do however like to see the track number in the filename for sorting in order, although it's not necessary.

 

Always easier to make playlists of albums/artists/collections of interest/mood, and store them in playlist folder in the music folder.... 

 

When tagging, strip out any tags you don't need - just keep name, track number, artist, album, year, and maybe genre. As for embedded artwork, there is nothing to be gained by pictures more than 220x220 pixels (saves space).

 

Once you have ripped and tagged, it is useful to "gain level" to avoid one album being annoying loud or quiet compared with another.

 

Finally, run the mp3s through an MP3 checker, which will spot errors, and remove redundant stuff, some of which can cause problems for some players.

 

The best MP3 tagging software is arguably "MP3tag" and a good MP3 checker is "MP3diags" - search the web. There are lots of playlist generator options.

 

...I have 10's of thousands of MP3 and FLAC files ripped from my my cd collection that I play on many different bits of kit, and they all work flawlessly and are easy to find and play using the above approach.

Edited 22 August, 20196 yr by freemansteve

Unfortunately Exact Audio Copy is no longer freeware -changed to Easy Audio copy on a 14 day trial on the links i have viewed.Already using mp3 gain to level out volume .

Mp3 converted tracks are faultless when played back on the PC- so problem lies with the capability of the car player in this format.As 90% is ok,I will live with it.......

Edited 24 August, 20196 yr by Blackcountryman