Final Cut Pro: Creating an Easy Setup for capturing DV with 32 kHz audio
If you often need to capture DV (digital video) that has an audio sample rate of 32 kHz, you may want to create an Easy Setup in Final Cut Pro with all the necessary settings.Note: the typical reason to set your DV camcorder to record at 32 kHz is for 4-channel audio. In most circumstances, you'll get best results by setting the camcorder to record audio at the standard sample rate of 48 kHz (2-channel). Follow this procedure for capturing material already recorded at 32 kHz.
AFGETFRAMECOUNT(3)AFGETFRAMECOUNT(3)NAME
afGetFrameCount, afGetTrackBytes, afGetDataOffset - get the total sample frame count, length of audio track in bytes, offset of the audio
track for a track in an audio file
SYNOPSIS
#include <audiofile.h>
AFframecount afGetFrameCount (AFfilehandle file, int track);
AFfileoffset afGetTrackBytes (AFfilehandle file, int track);
AFfileoffset afGetDataOffset (AFfilehandle file, int track);
PARAMETERS
file is an audio file handle created by a previous call to afOpenFile(3).
track is an integer which specifies an audio track within file. All supported file formats contain exactly one audio track per file, so the
constant AF_DEFAULT_TRACK should always be used.
DESCRIPTION
afGetFrameCount returns the total number of sample frames contained within the specified track of the specified file.
Each sample frame of audio consists of a fixed number of samples (equal to the number of audio channels in the track. For monaural data, a
sample frame consists of one audio sample. For stereophonic data, a sample frame consists of a stereo pair.
afGetTrackBytes returns the total number of bytes of raw audio data (i.e., prior to decompression or conversion) in the track.
afGetDataOffset returns the offset in bytes of the start of the audio data contained within the specified track of the specified file.
RETURN VALUE
afGetFrameCount returns the total number of sample frames in track.
afGetTrackBytes returns the total number of bytes of audio data in track.
afGetDataOffset returns the offset in bytes to the beginning of the audio data in track.
Each of these routines returns -1 in case of error.
AUTHOR
Michael Pruett <michael@68k.org>
Audio File Library 0.3.6 03/06/2013 AFGETFRAMECOUNT(3)