X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=doc%2Fmanual%2Fdcpomatic.xml;h=19551d0086442483c35ad36d15bd4f8081190556;hp=32007d1c2834297cac870fb9d118f46f02503969;hb=91adae31531b3ac8d1129cc3b2df577a39a892ee;hpb=87a2b47a8f5b0704d271cecbde3660066304d408
diff --git a/doc/manual/dcpomatic.xml b/doc/manual/dcpomatic.xml
index 32007d1c2..19551d008 100644
--- a/doc/manual/dcpomatic.xml
+++ b/doc/manual/dcpomatic.xml
@@ -1874,7 +1874,7 @@ unused channel will be filled with silence.
The Processor control allows you to select a
-process to apply to the audio before it goes into the DCP. Three processes are currently provided:
+process to apply to the audio before it goes into the DCP. One process is currently provided:
@@ -1884,31 +1884,7 @@ stereo input and extract the common part (corresponding to the
The remaining L/R parts will be kept in the L/R channels of the DCP.
This may be useful to make near-field L/R mixes more compatible with
cinema audio systems.
-Stereo to 5.1 up-mixer A — this will take a stereo input and up-mix it to ‘fake’ 5.1. The input L/R are treated as follows:
-
-DCP L is input L bandpass-filtered between 1.9kHz and 4.8kHz.
-DCP R is input R bandpass-filtered between 1.9kHz and 4.8kHz.
-DCP C is input L mixed with input R, taken down by 3dB and then bandpass-filtered between 150Hz and 1.9kHz.
-DCP Lfe is input L mixed with input R, taken down by 3dB and then bandpass-filtered between 20Hz and 150Hz.
-DCP Ls is input L bandpass-filtered between 4.8kHz and 20kHz.
-DCP Rs is input R bandpass-filtered between 4.8kHz and 20kHz.
-
-This upmixing algorithm is due to Gérald Maruccia.
-
-
-Stereo to 5.1 up-mixer B — this uses a different approach:
-
- DCP L is input L.
- DCP R is input R.
- DCP C is input L + input R taken down by 3dB.
- DCP Lfe is DCP C bandpass filtered between 20Hz and 150Hz.
- DCP Ls and Rs are input L - input R with a 20ms delay.
-
-
-
-
-The up-mixers are not particularly advanced and should be used with care. You are strongly advised to check how the DCPs sound in a cinema if you have used one of DCP-o-matic's upmixers.