HiFi sound v's Movie sound
Posted by: Johns Naim on 27 February 2004
Greetings All
Now this is one for the growing list of members amongst us all, who have taken either tentative, or full blown steps into the world of Home Theatre, either as a separate system to their 2 channel HiFi, or as some others have done, to integrate multi-channel Home Theatre with their existing 2 channel setup.
As some of you will know, I am one of the latter, having integrated some Sony ES series HT gear into my Naim 2 channel system.
Recently, I had to replace some old rear surround speakers with some new/better ones, aka a pair of Tannoys, which has improved the HT sound out of sight, and thus as they have now run in, I've been doing a lot more playing around with various sound 'modes' re surround, and thinking a great deal more about differences between HiFi sound, and HT sound, as I'm rapidly coming to a conclusion that they are two very different animals indeed.
To me, the reproduction of music in the home, is never going to be as 'realistic' as a live performance, in that the acoustics are just so different between the average home, and whatever studio or live venue where a recording takes place.
However, a very good system, such as the Naim, gives a wonderfully involving and rewarding sense of the music, as against 'musical occasion' via the detail in any sound (fullness, or rightness of timbre if you like) and the dynamics, both major and minor, that form the substance of music in terms of emotional involvement and expression.
On the other hand, movie sound, forgetting for the sake of argument that it uses lossy compression algorithmns and is made up mainly of dialogue, sound effects, and some music, conveys much of the sense of involvement and 'being there' by virtue of the soundfield created by a multi- speaker array.
Achieving the best soundfield is quite an exercise, needing matched speakers and amps all round if possible, with careful positioning, and attention to time delays etc to achieve the desired sense of a seamless soundfield surrounding the listner/movie viewer.
I notice that there is something of a distinct difference in approach to multi-channel movie sound between 'majors' such as Yamaha and Sony, and other players at that level, excluding perhaps'high end' products such as lexicon, in that they use proprietary algorithmns to 'alter' the sound so as to create a more enveloping and ambient detail rich soundfield.
In 2 channel terms, this playing with the signal via DSP, is anaethema to a purist music lover, and I for one would mostly eschew such devices, however I'm having a bit of a rethink, and am wondering as to others views and experiences/experiments etc.
In 2 channel music terms, if one wanted the most 'accurate' sound, then I guess we would want to eliminate the influence of the room, and listen through high quality headphones, but not many of us like protracted listening in the 'near field' as it were, and prefer the experience of music listening with speakers in a room, accepting the slight colouration/alteration of the signal this must bring, on the grounds that it sounds more 'realistic'
Translating this to multi-channel movie sound, I at times find the 'pure' sound of unadulterated 5.1, or 6.1 DD or DTS movies, to be somewhat 'dry' in that one can clearly hear left, center, right, and right and left rear etc, but almost as if it is just an extension of 2 channel - the effect being of listening to a movie in the 'near field' - very accurate re giving you what there is on the disc, but not realistic as in giving you that detail rich, enveloping surround sound field as experienced in a movie theatre.
Here, 7.1 definitely improves things, but of late I've been experimenting with the DSP settings on the Sony, and have also heard some Yamaha equipment as well, and have to say that the results aren't as accurate, in so far as if you were listening to the sound alone, that one would/does notice a slight softening of centre focus, as the image width widens to blend with the fronts more, and a slight slowing of transient attack and leading edge detail. Which is to be expected when one starts to manipulate the signal, adding subtle reverb, phase and timing delays etc.
BUT, used in this way, whilst not as 'accurate' per se, in the sense of being more 'realistic' and most especially being more involving, exciting and dramatic, I've been hearing some of the best HT 'sound' I've ever experienced IMHO. Importantly, I've found that when watching the picture, and not trying to much to carefully listen/analyse the sound, and just let the total movie/sound experience wash over one, the extra sense of realism and involvement the much larger, and more cohesive soundfield brings is hard to deny, and it's hard to go back to what one previously thought was the most 'pure', or accurate sound, and therefore automatically assumed it to be the 'best'
To be honest, I'd describe myself as being a bit of a 2 channel purist, in that I am anti - tone controls, loudness filters, graphic equalisers and such, yet, for movie use, the sort of signal manipulation re DSP souondfields as I've been discussing enhances the overall movie experience in ways I'd never imagined.
The extra level of subtlitie and nuance in low level scenes is astonishing - I'm hearing things in movie soundtracks effect wise I've never heard before, and flyovers, flyarounds etc or large scale effects become just that - filling the room with sound that is so much more realistic than 'pure' DD or DTS, if the measure of realism is recreating the movie watching experience as one experiences it in a commercial cinema, which is after all what one could rightly argue to be the 'reference'.
Heheh, am I developing an illness here? - being seduced by surround sound 'gimmicks'? - whatever it is, the emotional/involvement meter seems to go off the scale as I find myself ceasing to breath, getting excited/frightened etc, and generally much more involved with the movies, much in the way I do with good music through my 2 channel setup.
I'm quite surprised to be frank, as I did some experimenting, and listened to the Yamaha gear as well, as a bit of an experiment, and have been quite astonished at the results.
I note that of the high-end manufacturers, Lexicon have some proprietary DSP software to enhance the surround etc, but of the mainstream makers, Yamaha and Sony seem to have a bit of a corner on this sort of thing with their proprietary chips and codecs etc. Interestingly, having done some research on the net for more of how this stuff works, I see that in Sony's case, it very much has drifted down from their professional mixing desks etc, into their consumer products. Maybe owning a few movie studios, and having their own digital sound system (SDDS) has taught them a thing or two, or perhaps given them a few secrets that others can't, of don't for what ever reason choose to use.
So, sorry about the long post, but this is all a bit of a new and exciting journey of discovery in HT sound for me, but importantly, what do you think?
I'd love to hear some others views and experiences.
Regards to All
John...
Populist thinking exalts the simplistic and the ordinary
Now this is one for the growing list of members amongst us all, who have taken either tentative, or full blown steps into the world of Home Theatre, either as a separate system to their 2 channel HiFi, or as some others have done, to integrate multi-channel Home Theatre with their existing 2 channel setup.
As some of you will know, I am one of the latter, having integrated some Sony ES series HT gear into my Naim 2 channel system.
Recently, I had to replace some old rear surround speakers with some new/better ones, aka a pair of Tannoys, which has improved the HT sound out of sight, and thus as they have now run in, I've been doing a lot more playing around with various sound 'modes' re surround, and thinking a great deal more about differences between HiFi sound, and HT sound, as I'm rapidly coming to a conclusion that they are two very different animals indeed.
To me, the reproduction of music in the home, is never going to be as 'realistic' as a live performance, in that the acoustics are just so different between the average home, and whatever studio or live venue where a recording takes place.
However, a very good system, such as the Naim, gives a wonderfully involving and rewarding sense of the music, as against 'musical occasion' via the detail in any sound (fullness, or rightness of timbre if you like) and the dynamics, both major and minor, that form the substance of music in terms of emotional involvement and expression.
On the other hand, movie sound, forgetting for the sake of argument that it uses lossy compression algorithmns and is made up mainly of dialogue, sound effects, and some music, conveys much of the sense of involvement and 'being there' by virtue of the soundfield created by a multi- speaker array.
Achieving the best soundfield is quite an exercise, needing matched speakers and amps all round if possible, with careful positioning, and attention to time delays etc to achieve the desired sense of a seamless soundfield surrounding the listner/movie viewer.
I notice that there is something of a distinct difference in approach to multi-channel movie sound between 'majors' such as Yamaha and Sony, and other players at that level, excluding perhaps'high end' products such as lexicon, in that they use proprietary algorithmns to 'alter' the sound so as to create a more enveloping and ambient detail rich soundfield.
In 2 channel terms, this playing with the signal via DSP, is anaethema to a purist music lover, and I for one would mostly eschew such devices, however I'm having a bit of a rethink, and am wondering as to others views and experiences/experiments etc.
In 2 channel music terms, if one wanted the most 'accurate' sound, then I guess we would want to eliminate the influence of the room, and listen through high quality headphones, but not many of us like protracted listening in the 'near field' as it were, and prefer the experience of music listening with speakers in a room, accepting the slight colouration/alteration of the signal this must bring, on the grounds that it sounds more 'realistic'
Translating this to multi-channel movie sound, I at times find the 'pure' sound of unadulterated 5.1, or 6.1 DD or DTS movies, to be somewhat 'dry' in that one can clearly hear left, center, right, and right and left rear etc, but almost as if it is just an extension of 2 channel - the effect being of listening to a movie in the 'near field' - very accurate re giving you what there is on the disc, but not realistic as in giving you that detail rich, enveloping surround sound field as experienced in a movie theatre.
Here, 7.1 definitely improves things, but of late I've been experimenting with the DSP settings on the Sony, and have also heard some Yamaha equipment as well, and have to say that the results aren't as accurate, in so far as if you were listening to the sound alone, that one would/does notice a slight softening of centre focus, as the image width widens to blend with the fronts more, and a slight slowing of transient attack and leading edge detail. Which is to be expected when one starts to manipulate the signal, adding subtle reverb, phase and timing delays etc.
BUT, used in this way, whilst not as 'accurate' per se, in the sense of being more 'realistic' and most especially being more involving, exciting and dramatic, I've been hearing some of the best HT 'sound' I've ever experienced IMHO. Importantly, I've found that when watching the picture, and not trying to much to carefully listen/analyse the sound, and just let the total movie/sound experience wash over one, the extra sense of realism and involvement the much larger, and more cohesive soundfield brings is hard to deny, and it's hard to go back to what one previously thought was the most 'pure', or accurate sound, and therefore automatically assumed it to be the 'best'
To be honest, I'd describe myself as being a bit of a 2 channel purist, in that I am anti - tone controls, loudness filters, graphic equalisers and such, yet, for movie use, the sort of signal manipulation re DSP souondfields as I've been discussing enhances the overall movie experience in ways I'd never imagined.
The extra level of subtlitie and nuance in low level scenes is astonishing - I'm hearing things in movie soundtracks effect wise I've never heard before, and flyovers, flyarounds etc or large scale effects become just that - filling the room with sound that is so much more realistic than 'pure' DD or DTS, if the measure of realism is recreating the movie watching experience as one experiences it in a commercial cinema, which is after all what one could rightly argue to be the 'reference'.
Heheh, am I developing an illness here? - being seduced by surround sound 'gimmicks'? - whatever it is, the emotional/involvement meter seems to go off the scale as I find myself ceasing to breath, getting excited/frightened etc, and generally much more involved with the movies, much in the way I do with good music through my 2 channel setup.
I'm quite surprised to be frank, as I did some experimenting, and listened to the Yamaha gear as well, as a bit of an experiment, and have been quite astonished at the results.
I note that of the high-end manufacturers, Lexicon have some proprietary DSP software to enhance the surround etc, but of the mainstream makers, Yamaha and Sony seem to have a bit of a corner on this sort of thing with their proprietary chips and codecs etc. Interestingly, having done some research on the net for more of how this stuff works, I see that in Sony's case, it very much has drifted down from their professional mixing desks etc, into their consumer products. Maybe owning a few movie studios, and having their own digital sound system (SDDS) has taught them a thing or two, or perhaps given them a few secrets that others can't, of don't for what ever reason choose to use.
So, sorry about the long post, but this is all a bit of a new and exciting journey of discovery in HT sound for me, but importantly, what do you think?
I'd love to hear some others views and experiences.
Regards to All
John...
Populist thinking exalts the simplistic and the ordinary