From bf260c2ee2e6cca330fe44a72367b72f44e3f4bf Mon Sep 17 00:00:00 2001 From: jamessam Date: Sun, 20 Aug 2017 16:48:31 -0700 Subject: [PATCH] redo explanations --- index.html | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/index.html b/index.html index d76897f..ea29db2 100644 --- a/index.html +++ b/index.html @@ -324,14 +324,18 @@
ffmpeg
starts the command
-i input_file
path and name of the input file
-
-write_id3v1 1
Write ID3v1 tag. This will add metadata to the "older" MP3 metadata format that's found at the head of the file, assuming you’ve embedded metadata into the WAV file.
-
-id3v2_version 3
Write ID3v2 tag. This will add metadata to the "newer" MP3 metadata format that's found at the tail of the file, assuming you’ve embedded metadata into the WAV file.
+
-write_id3v1 1
This will write metadata to an ID3v1 tag at the head of the file, assuming you’ve embedded metadata into the WAV file.
+
-id3v2_version 3
This will write metadata to an ID3v2.3 tag at the tail of the file, assuming you’ve embedded metadata into the WAV file.
-dither_method rectangular
Dither makes sure you don’t unnecessarily truncate the dynamic range of your audio.
-out_sample_rate 48k
Sets the audio sampling frequency to 48 kHz. This can be omitted to use the same sampling frequency as the input.
-qscale:a 1
This sets the encoder to use a constant quality with a variable bitrate of between 190-250kbit/s. If you would prefer to use a constant bitrate, this could be replaced with -b:a 320k to set to the maximum bitrate allowed by the MP3 format. For more detailed discussion on variable vs constant bitrates see here.
output_file
path and name of the output file
-

A note about dither methods. FFMPEG comes with a variety of dither algorithms, outlined in the official docs, though some may lead to unintended, not-subtle digital clipping on some systems.

+

A couple notes

+

@@ -357,7 +361,7 @@
-ar 44100
sets the audio sampling frequency to 44100 Hz, or 44.1 kHz, or “CD quality”
output_file
path and name of the output file
-

A note about dither methods. FFMPEG comes with a variety of dither algorithms, outlined in the official docs, though some may lead to unintended, not-subtle digital clipping on some systems.

+

A note about dither methods. FFmpeg comes with a variety of dither algorithms, outlined in the official docs, though some may lead to unintended, not-subtle digital clipping on some systems.