how to record the sound of works of art robert hermann diplom tonmeister email:...
TRANSCRIPT
1 ) does separate sound documentation make sense ?
1 ) does separate sound documentation make sense ?
2 ) sound and size of objects
1 ) does separate sound documentation make sense ?
2 ) sound and size of objects
3 ) acoustic influence of the exhibition room
1 ) does separate sound documentation make sense ?
2 ) sound and size of objects
3 ) acoustic influence of the exhibition room
4 ) basic types of microphones
1 ) does separate sound documentation make sense ?
2 ) sound and size of objects
3 ) acoustic influence of the exhibition room
4 ) basic types of microphones
5 ) MS recording and decoding
1 ) does separate sound documentation make sense ?
2 ) sound and size of objects
3 ) acoustic influence of the exhibition room
4 ) basic types of microphones
5 ) MS recording and decoding
6 ) useful and professional recording tools
1 ) does separate sound documentation make sense ?
2 ) sound and size of objects
3 ) acoustic influence of the exhibition room
4 ) basic types of microphones
5 ) MS recording and decoding
6 ) useful and professional recording tools
7 ) the importance of post production
1 ) does separate sound documentation make sense ?
?
Three categories of importance of sound:
1 ) sound is an integrated part of the work of art and can be modified by the mechanical construction ( see example 1 )
2 ) sound is an integrated part of the work of art and can not be modified by the mechanical construction ( see example 2 )
3 ) sound is a random product of the mechanical construction
2 ) sound and size of objects, two examples
location: TINGUELY MUSEUM BASEL
recording date: june 2005
Example 1: small objectMartin Walde "Potion"one stereo microphone perspective is able to show all details
Close microphone positions above every single pot give even more detailed information
Example 2: large object Christiaan Zwanikken: „Frantic diggers“one microphone perspective can‘t show all details
Two audio examples of close microphone positions combined with corresponding photographies
main microphone position for an impressionof the complete sound in the room
3 ) acoustic influence of the exhibition room
- the room acoustics is always part of the sound we hear
- interaction of sound source and room acoustics is very important for musical performances
example 1: church organ without church
example 2: church organ in gothic church
acoustic influence of the exhibition room
- for the audio documentation of sounding objects we should keep the room influence as low as possible
- therefore we need suitable microphones
4 ) basic types of microphones
4.1 omnidirectional
An omnidirectional microphone will pick up the same amount of sound and generate the same output signal independently of the direction of the sound.
4.2 bidirectional
A Figure-Eight type microphone picks sound from the front and rear in the same amount but phase reversed.
4.3 cardioid
The cardioid microphone shows a heart-shaped polar pattern and has the least signal output for sound sources directly behind the microphone.
5 ) MS recording and decoding
Mid Side technique employs two microphones aimed directly at the sound source.
The Mid mic can be of any pattern, but is most often of a cardioid or hyper cardioid design.
The Side mic is a bi-directional or figure eight pattern.
The M/S matrix takes the sum information M + S, and sends it to the Left channel, the difference information M - S, is sent to the Right channel
the mono sum is M information only:mono = Left + Right = ( M + S ) + ( M - S ) = 2M
OK :-( but what’s the practical use of that ??
the signals can be matrixed in post production
the relative gain of the two signals can be adjusted to provide varying degrees of stereo width
you get two acoustic perspectives with a simple 2 channel recording
6 ) useful and professional recording tools
recording tools should be...
.... easy to use
recording tools should be...
.... easy to use
.... easy to transport
recording tools should be...
.... easy to use
.... easy to transport
... and have professional sound quality
Sometimes you only have professional sound quality
:-(
Recording equipment in Basel
But sometimes you have all of it
:-)
High quality mobile recording equipment ( example )
digital recordermicrophone inputs, 48V phantom powerrecords on compact flash cardsaudio transfer to computers via USBaudio resolution 24bit, 48kHz, standard WAV format
Integrated stereo microphone for MS recording
Capsule 1: hypercardioid for mid / mono channelCapsule 2: bidirectional for side / ambient channel
7 ) The importance of post production
7 ) The importance of post production
microphones do not „listen“ the same way we do
7 ) The importance of post production
microphones do not „listen“ the same way we do
careful improving of signal quality gives a betterimpression of the original sound
7 ) The importance of post production
microphones do not „listen“ the same way we do
careful improving of signal quality gives a betterimpression of the original sound
cooperation between sound and video documentationis necessary ( editing, DVD-authoring )
7 ) The importance of post production
microphones do not „listen“ the same way we do
careful improving of signal quality gives a betterimpression of the original sound
cooperation between sound and video documentationis necessary ( editing, DVD-authoring )
international standard for storage media would be helpful
