Why music really is getting louder

audiophile62

AVClub Enthusiast
9 February 2007
1,292
Αθηνα-Γλυφαδα
Dad was right all along – rock music really is getting louder and now recording experts have warned that the sound of chart-topping albums is making listeners feel sick.
That distortion effect running through your Oasis album is not entirely the Gallagher brothers’ invention. Record companies are using digital technology to turn the volume on CDs up to “11”.
Artists and record bosses believe that the best album is the loudest one. Sound levels are being artificially enhanced so that the music punches through when it competes against background noise in pubs or cars.
Britain’s leading studio engineers are starting a campaign against a widespread technique that removes the dynamic range of a recording, making everything sound “loud”.




“Peak limiting” squeezes the sound range to one level, removing the peaks and troughs that would normally separate a quieter verse from a pumping chorus.
The process takes place at mastering, the final stage before a track is prepared for release. In the days of vinyl, the needle would jump out of the groove if a track was too loud.
But today musical details, including vocals and snare drums, are lost in the blare and many CD players respond to the frequency challenge by adding a buzzing, distorted sound to tracks.
Oasis started the loudness war and recent albums by Arctic Monkeys and Lily Allen have pushed the loudness needle further into the red.
The Red Hot Chili Peppers’ Californication, branded “unlistenable” by studio experts, is the subject of an online petition calling for it to be “remastered” without its harsh, compressed sound.
Peter Mew, senior mastering engineer at Abbey Road studios, said: “Record companies are competing in an arms race to make their album sound the ‛loudest’. The quieter parts are becoming louder and the loudest parts are just becoming a buzz.”
Mr Mew, who joined Abbey Road in 1965 and mastered David Bowie’s classic 1970s albums, warned that modern albums now induced nausea.
He said: “The brain is not geared to accept buzzing. The CDs induce a sense of fatigue in the listeners. It becomes psychologically tiring and almost impossible to listen to. This could be the reason why CD sales are in a slump.”
Geoff Emerick, engineer on the Beatles’ Sgt. Pepper album, said: “A lot of what is released today is basically a scrunched-up mess. Whole layers of sound are missing. It is because record companies don’t trust the listener to decide themselves if they want to turn the volume up.”
Downloading has exacerbated the effect. Songs are compressed once again into digital files before being sold on iTunes and similar sites. The reduction in quality is so marked that EMI has introduced higher-quality digital tracks, albeit at a premium price, in response to consumer demand.
Domino, Arctic Monkeys’ record company, defended its band’s use of compression on their chart-topping albums, as a way of making their music sound “impactful”.
Angelo Montrone, an executive at One Haven, a Sony Music company, said the technique was “causing our listeners fatigue and even pain while trying to enjoy their favourite music”.
In an open letter to the music industry, he asked: “Have you ever heard one of those test tones on TV when the station is off the air? Notice how it becomes painfully annoying in a very short time? That’s essentially what you do to a song when you super-compress it. You eliminate all dynamics.”
Mr Montrone released a compression-free album by Texan roots rock group Los Lonely Boys which sold 2.5 million copies.
Val Weedon, of the UK Noise Association, called for a ceasefire in the “loudness war”. She said: “Bass-heavy music is already one of the biggest concerns for suffering neighbours. It is one thing for music to be loud but to make it deliberately noisy seems pointless.”
Mr Emerick, who has rerecorded Sgt. Pepper on the original studio equipment with contemporary artists, admitted that bands have always had to fight to get their artistic vision across.
He said: “The Beatles didn’t want any nuance altered on Sgt. Pepper. I had a stand-up row with the mastering engineer because I insisted on sitting in on the final transfer.”
The Beatles lobbied Parlophone, their record company, to get their records pressed on thicker vinyl so they could achieve a bigger bass sound.
Bob Dylan has joined the campaign for a return to musical dynamics. He told Rolling Stone magazine: “You listen to these modern records, they’re atrocious, they have sound all over them. There’s no definition of nothing, no vocal, no nothing, just like – static.”
Studio sound
— The human ear responds to the average sound across a piece of music rather than peaks and crescendos. Quiet and loud sounds are squashed together, decreasing the dynamic range, raising the average loudness
— The saturation level for a sound signal is digital full scale, or 0dB. In the 1980s, the average sound level of a track was -18dB. The arrival of digital technology allowed engineers to push finished tracks closer to the loudest possible, 0dB
— The curves of a sound wave, which represent a wide dynamic range, become clipped and flattened to create “square waves” which generate a buzzing effect and digital distortion on CD players



http://entertainment.timesonline.co.uk/tol/arts_and_entertainment/music/article1878724.ece
 

opsim

Moderator
Staff member
11 May 2008
16,171
Αθήνα
Προφανώς ισχύει αυτό που διάβαζα ότι τα άλμπουμ τώρα πια ηχογραφούνται με τέτοια ένταση ώστε να παίζονται από τα "αναιμικά" μεγαφωνάκια των κινητών τηλεφώνων ως ringtones και από τα ακουστικά-ψείρες των διαφόρων media players.
 

DomieMic65

Supreme Member
10 July 2006
9,692
Αθήνα
και αν δεν κάνω λάθος αυτή η ιστορία ειχε ξεκινησει για να ακούγονται πιο δυνατά απο τα μεγαφωνάκια των ραδιοφώνων!
 

Ge0rge

AVClub Addicted Member
17 April 2007
2,454
Νομίζω ότι έχει να κάνει και με την έλλειψη ικανότητας των "μικρών" ραδιοφώνων-ακουστικών της πλάκας-κινητών-ipod να αναπαράγουν τα δυναμικά.
 

kpaiss

AVClub Addicted Member
29 November 2006
2,129
Η σαλονατη δικαναλη ακροαση ειναι ενα πολυ μικρο ποσοστο μπροστα στην ακροαση απο ραδιοφωνα , mp3 players , κινητα κτλπ.
Οποτε ....
 

ΚΩΣΤΑΣ ΖΑΓΓΟΓΙΑΝΝΗΣ

Super Moderator
Staff member
20 October 2007
18,532
Μεσευρώπη
Τελικά ουδέν καινόν υπό τον ήλιο. Διαβάστε ένα άρθρο που ανακάλυψα στο διαδίκτυο για τις αρχές της δυναμικής συμπίεσης εν έτει 1943 παρακαλώ. Με bold τα πιό ενδιαφέροντα μέρη.


Pandora's Magic Box
Restoration of the music's dynamic range in historical recordings
by: Pierre A. Paquin
We are now able to enjoy great recording of the distant past, thanks to the efforts of several successful and dedicated engineers who have had at their disposal the original master discs and tapes of those recordings they wish to restore to present-day listenablity. Noteworthy among the major recording companies are BMG with the vast RCA Victor catalog. EMI, by way of Testament, and quit a few other engineers with variable success using sources other than the original.
However, there is one major annoyance caused by some of these restorations. Namely an unwillingness to infuse some of the dynamic range, which was removed in many of these old recordings by the original engineers during the actual recording sessions. One would expect a dynamic range process to be much more possible these days with all sorts of electronics available within the analog and digital domains. While listening to remarkable restorations of few the few records of Irish soprano Margaret Sheridan made at La Scala in the late 1920s, I became convinced that the recording process for one major company began to degrade as time went on, especially beginning in 1943 and ending in 1951. These La Scala recordings as restored successfully by both Romophone (F 89001-2) and Time Machine (F 0100) expose how great an electrical recording could be 70 years ago. These Italian recordings were made by HMC featuring the great soprano in a complete Madame Butterfly, as well as duets with Toscanini's favorite tenor, Aureliano Pertile. The La Scala Orchestra was conducted by HMV's Italian music director, Carlo Sabajno. String portmento was a way of life in the La Scala Orchestra in the 1920s, as these recordings show, and the sonics are incredible for the time.
These old records seem to verify the idea that whoever was at the recording 'console' way back then had an idea about the music being etched by needles onto wax master discs. Occasionally there is some evidence of overload (hence the necessity to issue some of these La Scala sides as dubbings), but overall the dynamic range (soft to loud and loud to soft) is intact and very much up to date. The original engineers would use a manual technique called 'gainriding' to make sure that the pianissimos were not buried in surface noise and most of the fortissimos were brought down in volume intensity so as to not exceed the 78rpm recording limitations. This practice, which was very necessary during those old recording sessions, would be successful musically only if the engineer knew the music by way of listening to other recordings or being able to read the musical score well in advance of the sessions.
Next on the listening agenda were the 1928 Beethoven Pastoral Symphony on the original 78rpm discs (Victor set M50) and the 1930 Tchaikovsky Pathtique (RCA 0902660920-2) both with the Boston Symphony Orchestra under Serge Koussevitzky. These recordings were engineered with remarkable finesse, at least in terms of dynamic range. With the Pathetique CD is that remarkable performance of Tchaikovsky Romeo and Juliet etched in 1936, also with the BSO under Koussevitzky, with a little less success in overall sound even though six years had passed since the Pathetique had been recorded. Next, on with the BSO/Koussevitzky Tchaikovsky Fourth Symphony recorded a few years later not bad at all were dynamic range is concerned but not incredible in terms of performance. (Would that the BSO could play like that today.)
Then in 1943, something happened to RCA Victor engineering. It seems that the engineering staff no longer needed to have any idea about the music to be recorded, as a 'magic box' was introduced into the recording chain of electronics. It appears that anyone could be a recording engineer of great music with that box in place. Dynamic range of the music now took a back seat as this primitive compressor automatically replaced the need for any judicious and necessary manual 'gainriding' of the console master volume control. One of the first recordings to fall victim was the great BSO/Koussevitzky Appalachian Spring Suite (Victor 11-9129/31) then on with their legendary 1946 performance of Schubert's 'Unfinished' (Victor 11-9082/4) up to the last Boston Symphony recording of Koussevitzky in 1950: Sibelius's Second Symphony (Victor LM1172). The compression was so bad in this recording, that it was overcome musically only by the performance itself. The 1951 Schumann Spring Symphony with Munch, now in vinyl heaven (Victor LM1190), also comes to mind, as well as the same conductor's great performance of Schumann's Genoveva Overture with BSO (RCA Victor 0926 60082-21). Other examples of 'automation' are all the Toscanini recordings done in studio sessions during the same period. Think of the sessions for the Rossini Overtures from the mid-1940s (the NBC broadcasts were much better engineered, as the recording staff were quite different).
The recording session that forced RCA Victor engineers to get back to learning the score was undoubtedly that for the Toscanini, Verdi Requiem (RCA 74321 72373-21). Ironically, it was the Requiem not only for Manzoni but also for the 'magic box' compressor. It was a broadcast performance, but RCA Victor engineers were given the responsibility of doing the recording instead of the usual NBC broadcast crew. So ill prepared were the Victor engineers in coping with the dynamics of Verdi's 'best opera', with Toscanini on the podium shaking his fist for more volume from the thunderous if not infamous massive square bass drum designed especially for this Carnegie Hall performance, that the final product was a patchwork of rehearsal and performance takes. Plainly evident to the ears is the magic box trying desperately to do its automated duty. Yet this performance is so dramatic in every way that it overcomes the very poor if not stupid technical work done by the Victor engineers in 1951.
During this seven -year period those incredible performances with Monteux and the San Francisco Symphony Orchestra fell victim to this careless (I could care less!) recording technique. All can be heard within the Monteux CD edition on RCA. (I shall not comment on the 'front end' distortion: evident on the Monteux/BSO Tchaikovsky Fourth Symphony of 1959. That is another story.) Remastering here creates a rather noise-free listening experience throughout the CD set, but what could have been done to fix the effects of that wretched compressor in order to retrieve the dynamic range of the performances?
It seems quite logical that if we want to restore and preserve these RCA Victor performances, the huge scrapheap of discarded electronics should be thoroughly searched in order to find the 'magic box' compressor. Its horrid thumping and pumping compression parameters should be analyzed and computer sound stations should have a special programme developed in order to counteract these ill effects in engineering a truly complete restoration of these fine performances.
The RCA Victor recording which is a must fix is the Sibelius Second Symphony with Koussevitzky, as it can best demonstrate the wholesale use of the 'magic box'. Moving on to the 1947 Munch/BSO Beethoven Seventh Symphony (Victor LMI ?34). What a performance that is, and it is one of the very first RCA recordings made with analog tape: the first RCA recording of the Boston Symphony Orchestra with 'Le Beau Charles' as he was called by the French-speaking ladies in the Symphony Hall audience.

Pierre Paquin has been a recording engineer for more than 30 years. His best work is with symphony orchestras and choruses. He now helps his wife operate Sound Dynamics Associates, a recording company based at Cape Cod Massachusetts. See his website at http://www.sd-associates.com.
 

Γ. ΚΟΥΛΗΣ

Established Member
17 January 2008
179
ΑΘΗΝΑ
Πολύ καλό άρθρο!

These old records seem to verify the idea that whoever was at the recording 'console' way back then had an idea about the music being etched by needles onto wax master discs.
Η διαδικασία αφορά τα 'κέρινα' master discs της εποχής.
Λόγω του περιορισμένου δυναμικού εύρους που μπορούσαν να αποθηκεύσουν - εγγράψουν σε αυτά, οι μηχανικοί της εποχής (βλέπε μουσικοί στην ουσία), προσάρμοζαν το volume του έργου σε κάθε χρονική στιγμή έτσι ώστε να μένουν στα ορθά πλαίσια της δυναμικής περιοχής του δίσκου. Βασική προυπόθεση ήταν να γνώριζαν πολύ καλά το έργο διότι η κάθε ρύθμιση που έκαναν γίνονταν σε πραγματικό χρόνο, ελάχιστα πρίν το σήμα φτάσει στον δίσκο.
Ρύθμιζαν ακόμα και το pitch του δίσκου δυναμικά (το πλάτος στο αυλάκι του δίσκου).
Όλα αυτά σταμάτησαν με την εγγραφή τών masters αργότερα σε μαγνητοταινίες οι οποίες μπορούσαν άνετα να πάνε στα +3 ή ακόμα και στα +6DB χωρίς συμπίεση.