Needed : vinyl rips of few seconds from good analog system.

[mbhangui]

Except for the 'Raat Kali' song all the vinyl rips have missing content at very low frequencies (thick yellow band at the bottom), showing one deficiency of the vinyl medium (deeper grooves required for lower frequency spectrum). The Janeman song have different scales on the right side and the CD version looks like it is DR compressed. I think the same is the case for Aradhna, but the scale value is not visible in the screenshot.

 

[Hiten]

@murali_n
That would be of great help. Thanks. Just send me half a min. of Kati Patang song 'Yeh sham mastani' Because I have audio cd of it.
@sunder
If you mean by 'revival' series I have heard them. they sound clean and HF accentuated. But not natural. Personally I am looking for differences in the original content as much as possible. That means not altering or modifying original source.
@mbhangui
Thanks to bringing it to notice. what I did was I opened both Vinyl and Audio cd file. cut the similar section of one minute of both files discarding remaining portion. Screen grabbed the top channel and pasted it on another screen grab. What you see as low frequency cutoff is just I cropped the image too close. I will look in to the scale. Pardon for doing job in hurry. Not my style. I will repost. But I hope basic essence of evaluating remains somewhat relevant.
Regards
Edit : Some part corrected.

 

[sunder]

If you mean by 'revival' series I have heard them.

Sorry Hiten, I was wrong. Yes, you are right that the series named as 'Revival'. Yes, that is not a natural one and that was made only for the listening pleasure. When we listen the revival music, our concious won't accept & will compare with the Original form in paralell.

 

[murali_n]

@murali_n
That would be of great help. Thanks. Just send me half a min. of Kati Patang song 'Yeh sham mastani' Because I have audio cd of it.
@sunder
If you mean by 'revival' series I have heard them. they sound clean and HF accentuated. But not natural. Personally I am looking for differences in the original content as much as possible. That means not altering or modifying original source.
@mbhangui
Thanks to bringing it to notice. what I did was I opened both Vinyl and Audio cd file. cut the similar section of one minute of both files discarding remaining portion. Screen grabbed the top channel and pasted it on another screen grab. What you see as low frequency cutoff is just I cropped the image too close. I will look in to the scale. Pardon for doing job in hurry. Not my style. I will repost. But I hope basic essence of evaluating remains somewhat relevant.
Regards
Edit : Some part corrected.

Sure will do

 

[Hiten]

Here is new image of 'janeman' song. As said earlier if one zooms in there is minor filter (may be expander) used (In audio cd) to increase range. Low frequency content is more or less same. One can ignore streaks going above 20k they may be system or computer data. There is nothing in it and levels are very very low. In audio cd spectrum one can see some frequencies are subdued in around 5-6k range. Kindly ignore the mismatch in length (duration) as I selected the portion by hearing the audio file.

 

[morerajendra5678]

View attachment 93618
Here is new image of 'janeman' song. As said earlier if one zooms in there is minor filter (may be expander) used (In audio cd) to increase range. Low frequency content is more or less same. One can ignore streaks going above 20k they may be system or computer data. There is nothing in it and levels are very very low. In audio cd spectrum one can see some frequencies are subdued in around 5-6k range. Kindly ignore the mismatch in length (duration) as I selected the portion by hearing the audio file.

My take is that these results will vary if different CD players are used. Different CD players will bring in use of different DAC chips and/or different implementations of DAC chips. But one thing will be relevant across different CD players is smoother delivery of high frequency range in Vinyls due to use of compressor/expander during mastering. Similar smoother high frequency can be achieved with use of processors when using CD player and Streaming.

 

[Hiten]

The whole effort is to identify prominent difference between Vinyl rip and Digital Audio CD file. And if found if there is any common alterations are done to Music Companies Audio CD format. And if so if it can be equalized to somewhat original sound for casual listening. So far Vinyl is the only source which has preserved the original recording.
Regards.

 

[Hiten]

Re posting 'Raat kali' song for records sake from Odeon pressing Vinyl and CDF Made in England CD.



Not much difference. Vinyl sound more lively probably because CD has more subdued frequencies below 2K. Cause can be anything so will leave at that. Some spectrum can be seen above 14 k in audio CD format. I high passed those section and amplified it. Nothing to be heard even after amplification. So not important I guess.

 

[Hiten]

Hi all,
as testing samples are not much but to somewhat salvage something beneficial from the work, here are some thoughts....

- As data qty is low conclusions even moderation can not be done.
- issue is the companies allowed each album/compilation to be modified as per someone's liking. ( I have 4 version of song Phhoolon ke rang se' by Kishore Kumar by original music companies cd in compilation or albums etc.
- But broadly speaking most authentic digital file seems to converted by increasing volume/expanding dynamic range or some plain equalization.
- Not everyone has audio editing software to evaluate the songs. So best would be to have only controls which one has. i.e. Tone control equalization (Bass, Mid Treble or graphic equalizer)
- If you are used to the song it would be easy to adjust.
- Even if songs recording is not good quality there was no need for companies to alter the songs. But damage is done. Best to listen to vinyl or get vinyl recording if one wants original sound. Because all modification alters the sound and most probably will not sound natural.
- Hope this helps in some way, as idea was to see if there was any 'pattern' by music companies in producing Audio cds which can be reverted back some what.
- Will update if anything new worthwhile comes by. Meanwhile let this not be nitpicking in listening and enjoying some good music. Specially Hindi Songs. (I am curious how other regional songs are recorded ?)
- Thanks everyone who contributed and helped in various ways.

Take care and bye for now.

 

[Bhaskar Jyoti Talapatra]

Thread 'Good Sounding Regional Vinyl Pressings' https://www.hifivision.com/threads/good-sounding-regional-vinyl-pressings.85604/

 

[Hiten]

If anyone has no source of a vinyl and has music of his liking on cds which do not sound good and desire to use basic tone control or graphic equalizer here is an article from August 1979 Popular electronics Magazin. I have original papers torn from the book. Very good information.
Art of equalization
Hope this salvages the situation to some extent.
Regards.