Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.debian.user > #226252 > unrolled thread

mp3 images on in-dash radio

Back to article view | Back to linux.debian.user

Contents

  mp3 images on in-dash radio "Russell L. Harris" <russell@rlharris.org> - 2020-08-18 01:10 +0200
    Re: mp3 images on in-dash radio Dan Ritter <dsr@randomstring.org> - 2020-08-18 01:40 +0200
      Re: mp3 images on in-dash radio "Russell L. Harris" <russell@rlharris.org> - 2020-08-18 04:10 +0200
        Re: mp3 images on in-dash radio Richard Hector <richard@walnut.gen.nz> - 2020-08-19 16:10 +0200
          Re: mp3 images on in-dash radio "Russell L. Harris" <russell@rlharris.org> - 2020-08-19 22:10 +0200

#226252 — mp3 images on in-dash radio

I processed several lecture series (analogue voice streams) as
follows:

(1) record each stream as a WAV file on a TASCAM digital recorder

(2) load each WAV file into "Audacity" as a project, for editing and
for manual insertion of a number of filename labels, to label sessions
within each lecture series

(3) use the "Audacity" FILE -> EXPORT MULTIPLE function to split each
project into WAV files corresponding to the manually-inserted labels,
with each session in a separate file

(4) use "lame" to encode each of the WAV files as MP3

(5) use "id3tool" to create for each MP3 file a tag showing TRACK,
TITLE, ARTIST, ALBUM, YEAR.  (These fields have to do with the lecture
series, lecture topic, and session number; they are not artist name
and album and song titles in the usual sense.)

(6) copy the MP3 files into folders of a directory structure, sorting
them by lecture series

(7) use "puddletag" to create a playlist for each folder (lecture
series), to play sessions in proper order

(8) copy the directory structure to a USB flash memory stick, for
playback over the in-dash radio of an automobile.

PROBLEM: For some of the sessions, the LCD display of the in-dash
radio displays an image.  The image is not related to any of the
series of lectures.  Moreover, some of the images are objectionable.
Some in-dash radios make display of images optional.

I have been unable to determine the source of the images.  I have
found no clues from searching on the Web.

= Is it possible that an image is embedded in the MP3 file which I
have created?  Or can there be a URL to an image in the label which I
have created?  If so, at what stage of the processing was the image or
link introduced?  How can I remove them?

= Doe the image originate in the in-dash radio?  If so, where does it
reside, and how and why is it associated with my files?

[toc] | [next] | [standalone]

#226256

Russell L. Harris wrote: 
> PROBLEM: For some of the sessions, the LCD display of the in-dash
> radio displays an image.  The image is not related to any of the
> series of lectures.  Moreover, some of the images are objectionable.
> Some in-dash radios make display of images optional.
> 
> I have been unable to determine the source of the images.  I have
> found no clues from searching on the Web.
> 
> = Is it possible that an image is embedded in the MP3 file which I
> have created?  Or can there be a URL to an image in the label which I
> have created?  If so, at what stage of the processing was the image or
> link introduced?  How can I remove them?
> 
> = Doe the image originate in the in-dash radio?  If so, where does it
> reside, and how and why is it associated with my files?

What in-dash system are you using?

While it is possible to embed information in an MP3 file, one
has to do so affirmatively, and the space is quite limited.

Much more likely is that the stereo system is either:

reading images from the USB stick in a slide-show mode

or

looking up "albums" via a web service and trying to display the
covers.

-dsr-

[toc] | [prev] | [next] | [standalone]

#226265

On Mon, Aug 17, 2020 at 07:31:10PM -0400, Dan Ritter wrote:
>What in-dash system are you using?

The offending system is that of a 2016 Toyota Tundra; it has a
software switch to defeat display of the album cover.


>While it is possible to embed information in an MP3 file, one
>has to do so affirmatively, and the space is quite limited.

Understood.  And I know that there are about three or four versions of
ID tag.  The "id3tool" man page speaks of version 1.1 and version 1.0.
But after reading the id3 tag wikipedia page, the eyed man page, and
the picard man page, I am confused, and do not know which, if any, id3
tags I need for this application.  At present, experimentation is a
bit difficult, because of 100+F daytime temperatures and carnivorous
horseflies once darkness falls.


>Much more likely is that the stereo system is either:
>reading images from the USB stick in a slide-show mode

I formatted the stick (which is 8Gb) before writing the files.


>or looking up "albums" via a web service and trying to display the
>covers.

The Tundra does have a GSP navigation system integrated into the
in-dash radio.  But I am aware of no accounts.  And my cellular stays
powered down and in my briefcase.  Moreover, my lecture series names
likely do not match any music album names.  

RLH

[toc] | [prev] | [next] | [standalone]

#226297

On 18/08/20 1:38 pm, Russell L. Harris wrote:
> On Mon, Aug 17, 2020 at 07:31:10PM -0400, Dan Ritter wrote:

>> or looking up "albums" via a web service and trying to display the
>> covers.
> 
> The Tundra does have a GSP navigation system integrated into the
> in-dash radio.  But I am aware of no accounts.  And my cellular stays
> powered down and in my briefcase.  Moreover, my lecture series names
> likely do not match any music album names. 

Have a look at CDDB: https://en.wikipedia.org/wiki/CDDB

It seems to work on track lengths rather than any track names, so maybe
your lectures happen to be the same length as some music tracks?

What happens if you play your CD in a computer player like rhythmbox or
similar?

Richard

[toc] | [prev] | [next] | [standalone]

#226310

On Thu, Aug 20, 2020 at 02:08:02AM +1200, Richard Hector wrote:
>What happens if you play your CD in a computer player like rhythmbox or
>similar?

I installed rhythmbox and plugged the USB flash stick into the
computer, which was mounted on \media\.  Whoever put together
rhythmbox made the interface highly dependent upon intuitive
interpretation of symbols, some of which I find inscrutable.  I
finally managed to play a track (no image was displayed), but after
that rhythmbox showed the files greyed out, and then refused to show
anything.  Now I have a very low opinion of rhythmbox; life is too
short to squander messing around with stuff like that.

RLH

[toc] | [prev] | [standalone]

Back to top | Article view | linux.debian.user

csiph-web