keep up the good work kaissiom. i really hope we can create somekind
of a database or something of that sorts so that ppl dont miss this.
personally, i dont have voiceless BGMs at all. it will be wondeful to
have professional musical analysis, BGMs, instrumentals, etc in a
place where people any come anytime and attain it. 

--- In [email protected], "kaissiom" <[EMAIL PROTECTED]> wrote:
>
> Voiceless BGMs - Explained!
> 
> I'm not much of any expert on this topic, as I happened to accidentally
> or unintentionally discover the process of ripping voiceless BGMs. 
> There may be members on this group who have expertise in this area who
> may be able to shed some more light on this topic.  Following article is
> my limited understanding of this subject, please correct me if I am
> wrong.
> 
> First, some definitions:
> * For the sake of discussion L refers to Left and R refers to Right
> (speakers)
> 
> Mono: Single channel (no difference in L or R speaker, both reproduce
> one sound)
> L speaker = R speaker = One sound from both.
> [Note]: Rahman has been very disappointed that 'Kabhi Na Kabhi' was
> recorded in stereo, but released in Mono.
> 
> Stereo: Two or more channels (generally two channel, separate
> recording/reproduction of sound, L and R)
> L speaker: recorded/reproduced separately
> + R speaker: recorded/reproduced separately
> = 3 different sounds possible: L sound + Shared L/R sound + R sound
> [Note]: Think of it as a Venn diagram: Both L and R speakers reproduce
> same sound most of the time, but will also have variations of their own.
> Quite evident in 'Daud' - Title track, the entire track has variations
> in Left and Right channel.
> 
> Stereo Surround: 5.1 or higher (5 channels plus 1 LFE;
> Dolby-Digital,dts)
> L Front speaker: recorded/reproduced separately
> +R Front speaker: recorded/reproduced separately
> +C Center speaker: recorded/reproduced separately
> +L Rear speaker: recorded/reproduced separately
> +R Rear speaker: recorded/reproduced separately
> +LFE Low-Frequency Effects(sub-woofer)
> = Surround Sound experience.
> [Note]: Most, but not all, DVD-Videos have 5.1 surround sound.  And also
> the rare, but dying, DVD-Audio format falls in this category.
> 
> There's no limitation on the number of channels, I find some English
> movies with 7.1 surround sound , you can also buy a 10.1 sound systems,
> if you can find source to utilize those channels.
> 
> Almost all Media formats can reproduce mono and stereo, but not
> surround:
> Cassette tapes: Stereo and Mono
> CD: Stereo and Mono
> VCD: Stereo and Mono
> DVD: Surround, Stereo and Mono
> 
> How does this relate to voiceless BGMs?
> Voiceless BGMs are only possible from surround sound, given that they
> were recorded and reproduce as surround.  So, that leaves us with
> DVD-Audio, which I won't get into, and DVD-Video, by which we mean
> regular DVD movies.
> 
> How are BGMs recorded on DVDs?
> I don't know exactly, but that's up to the composer and the sound
> engineer.  But in order to qualify as surround sound, they have to
> record different sounds for different channels. For example they may
> record actors' voices for the CENTER channel and the background score
> for the two-REAR speakers and a combination of both voices and score on
> the two-FRONT speakers  (this is hypothetical, simple and
> straightforward example):
> L/R Front speakers: Combination/layers of both voices and background
> score
> CENTER speaker: Only voices
> L/R Rear speakers: Only background score
> 
> You can imagine watching a movie and an extra sound effect from back, or
> someone yelling from behind you or a car whooshing by.  And remember,
> they can try many different combinations with 5 different channels.
> 
> How to extract voiceless BGMs?
> Simply put, you have to tap into the  channels that only contain the
> 'Background Score'.   In the simple example given above, it would be the
> 'L/R Rear Speaker/Channel'.
> 
> How do kaissiom and AJ extract voiceless BGMs?
> Well, I can't speak for AJ, but I know he uses some software.  And as
> far as I'm concerned, I can write a longer post than this one trying to
> explain how I accidentally did it.  My method is not all software- it's
> combination of hardware and software.   I was fixing my computer and my
> home-theater system set-up, such that I can play the music from my
> computer on my surround sound system.  This required additional cables,
> adapters, etc.. but I accidentally cut one wire and attached it in the
> wrong place somewhere on the soundcard and amplifier.  And when I played
> a movie on my computer, all I could hear was voices, no BGM.  When I
> switched some wires.. I got BGM, no voices... hence, voiceless BGMs.  I
> still have to switch these wires... every time I have to extract
> voiceless BGMs  ;-)
> 
> How can one extract voiceless BGMs?
> -[Software]- Easiest way to do it: Find a DVD-ripping software that not
> only rips audio from DVD, but rips audio as separate channels.  Once you
> have all the audio in different channels, keep the channel with BGM,
> discard the rest.
> -[Hardware]- Complicated way of doing it: Cut some wires from the
> surround sound system and record it from the amplifier - this is how I
> do it.  It takes me about 5 to 6 hours to do a movie because I perform
> additional editing using software to enhance the quality.  I use
> hardware(amplifier/soundcard) to extract the audio and then use
> software(SoundForge) to enhance it.
> 
> Are there any caveats?
> As with everything... Yes.
> -[Source] The movie has to be recorded in surround sound. Older movies
> (Roja, Bombay, etc.), and surprisingly some newer movies are not
> recorded in surround sound... therefore, NO VOICELESS BGMs are possible
> - Ever.
> -[Media] Even if the movie was recorded in surround sound.  You have to
> get hold of the DVD with 5.1 surround sound.  VCD or a tape will not
> work.  Some Indian DVDs just have the '5.1 Dolby Digital' stamp for the
> 'coolness' factor, and are not true surround sound.  I have had this
> experience with Zubeidaa.  In other words, there are some fake surround
> sound DVD out there, and they will not work - NO VOICELESS BGMs.
> - [Application] Finally, the application used to extract the BGMs should
> support surround sound.
> 
> What is 'Sync sound'?
> Some movies, mostly newer ones are recorded in sync sound.  Lagaan,
> Swades, RDB are all sync sound.  Sync sound means actors' dialogues  are
> recorded live while shooting the movie, actors do not have to go in for
> a 'lip sync' or 'dubbing' session after the movie.  BMGs are added to
> the original dialogues.  Usually, when movies are recorded in sync
> sound, we end up having crisp/clean surround sound... Voices are
> separte, BGM is separate  as quite evident in Lagaan/Swades BGMs.  When
> movie is not done in Sync sound, BGMs tend to be messy.  Saathiya was
> done in Sync sound, where as disappointgly, Guru was not.  When dubbing
> is done at the same time as BGMs are added, they tend to be layered
> together and we don't get the crisp clean voiceless BGMs.   Extracting
> BGMs from Rajni movies is ever difficult, regardless of whether it's
> done in sync or not.  The extra 'Rajni Effects' or the 'swoosh-whoosh'
> sound every time the superstar moves a finger... is added on top of the
> BGMs.
> 
> Having said that, recent media reports suggested that Hrithik and Ash
> were in studios doing some voice recordings/dubbing... at around the
> same time reports of 'Rahman finishing up the BGM for Jodha Akbar' were
> cropping up.  I really hope JA is done in Sync sound, otherwise the BGM
> could be tainted.
> 
> Sorry for the long/dry post.  Vithur and others have expressed great
> interest in this subject and I somehow come across as someone who is
> hiding something.  How can a blind person (me) lead someone on a path?
> When I myself found the path accidentally and seem to be walking on it
> unknowingly.
> 
> But there! The unguarded 'secret' is out, the knowledge does not just
> rest with me anymore.  I feel like a great burden has been lifted off my
> shoulders, although I have touched on and explained this topics in
> various bits and pieces over time.
> 
> Hopefully, I have cleared up some doubts here, and raised new ones.. As
> always, please feel free to contact me if you have any questions or
> corrections.
> 
> I too believe that it will be a loss to Rahman fans, if we do not
> collect all the available voiceless BGMs out there.  Therefore it is
> important to first establish how many such true surround sound DVDs
> exist out there.  Once we establish that, we can see which ones have
> been extracted and which ones are pending.  Then, we can go from there.
> 
> 
> Regards,
> Rahmaniac.
>


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