MidiMagic
2K Club - QQ Super Nova
- Joined
- Jul 5, 2010
- Messages
- 2,257
So are you wanting a huge number of tracks in a recording so you can use any playback method you want by choosing the correct tracks?would that still be correct when we change the conditions as follows: mono- and stereo compatibilty is not required and our mixes are done likewise.
(for example, as i mentioned, when i want to use the 4:2 encoding mainly for easy distribution and it can contain binaural rendered content already, so that we use the 4 speakers to have full 360 degree positioning, which is not possible when you use these formats as intended.)
Or are you somehow expecting the recording to be made compatible with more things the way software is made more compatible by adding drivers or something?
I am sorry to say that a 2-channel analog recording (or even a digital recording) is limited to the actual recording it was recorded with. You can't put multiple systems into a single recording.
I can record an RM recording that plays on the Hafler Diamond, Dynaquad, Stereo-4, Scheiber, RM, QX, Sansui QS, Dolby Surround, Dolby PL-I, and Dolby PL-II only because all of these various products actually are looking for the same kind of encoding.
This encoding is (as seen in a phonograph record groove) is:
- Left is encoded as the left pickup channel (45 degree stylus motion (high near label).
- Right is encoded as the right pickup channel (45 degree stylus motion (high near rim).
- Front is encoded as both channels in phase (horizontal stylus motion).
- Back is encoded as both channels our of phase (vertical stylus motion).
- Other angles (e.g. left front) are changes in the stylus motion angle.
Here is a diagram of those record groove angles. The arrowhead direction indicates the stylus motion making the positive polarity of the decoded signal:
Note that SQ and other matrix systems use different encoding methods of putting the sounds into the record grooves. They are not compatible with these decoders. For example, SQ uses these stylus motions instead. Notice that some stylus motions are circular.
There is no way to make an RM decoder decode SQ correctly and there is no way to make an SQ decoder play RM correctly.
I did find a way to record RM and binaural into the same recording by using a special mic array. But that is an exception to the rule that different matrix systems are incompatible with each other.
I actually proved mathematically that it is impossible to put all of the possible phonograph stylus motions into a monophonic signal. Some of them will always be diminished or entirely lost,.
Last edited: