From afe73f4916c2dc676ab101c3d2625ac2880d38d1 Mon Sep 17 00:00:00 2001 From: nu774 Date: Fri, 18 Oct 2013 22:35:34 +0900 Subject: [PATCH] update README --- README | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/README b/README index 4bd55b3..76ebcd1 100644 --- a/README +++ b/README @@ -32,6 +32,19 @@ look like the following: MSVC solution for Visual Studio 2010 is under MSVC directory. +Available input format +---------------------- +WAV (or RF64), upto 32bit int / 64bit float format is supported. +However, since FDK AAC encoder is implemented based on fixed point integer, +encoder itself treats 16bit input only. +Therefore, when feeding non-integer input, be careful so that input doesn't +exceed 0dBFS to avoid hard clips. +You might also want to apply dither/noise shape beforehand when your input +has higher resolution. + +Note that fdkaac doesn't automatically resample for you +when input samplerate is not supported by AAC spec. + Tagging Options --------------- Generic tagging options like --tag, --tag-from-file, --long-tag allows you -- 2.30.2