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diff --git a/doc/manual/dcpomatic.xml b/doc/manual/dcpomatic.xml
index 0354d6b55..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.
@@ -2139,7 +2115,15 @@ from the timeline is also preserved.
From this dialogue you can select the required output format,
output file and, in the case of MP4, the quality of the output
- file. Higher quality files will, of course, be larger.
+ file (by setting the CRF value).
+
+
+
+ The useful range of CRF values is from 17 (high quality but large file size) to 28 (smaller file size and still reasonable quality).
+
+
+
+ The time needed to export, and the resulting size, depend partly on the DCP resolution set in the project. To change that, see chapter .
@@ -3786,21 +3770,25 @@ The full details of OV and VF files are discussed in Verifying DCPs
- The player also offers a DCP checker. To check a DCP,
+ The player also offers a DCP verifier. To check a DCP,
open it and then select Verify DCP from the
Tools menu.
- The validator will report three kinds of problems:
+ The verifier will report three kinds of problems:
- Errors — serious problems with the DCP that are likely to cause problems on playback.
- Bv2.1 errors — errors described by the SMPTE Bv2.1 standard.
- Warnings — small problems that may not matter.
+ Errors — serious problems with the DCP that are likely to cause problems on playback.
+ Bv2.1 errors — errors described by the SMPTE Bv2.1 standard.
+ Warnings — small problems that may not matter.
+
+ The following sections list what the verifier checks for in each category.
+
+