How to save sound that FCP likes?

Subject: How to save sound that FCP likes?
From: Mark Allen <email@hidden>
Date: Thu, 14 Jun 2007 08:47:51 -0700
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I managed to extract the audio last night from a DV frame. I do some processing on it and then I save it out. By processing I mean a pass with some filters. Nothing that changes the length of the data, its bit rate or anything. The audio I extracted is 16-bit big endian, 2 channel at 32Khz.

However FCP complains about the audio in my files and says: "The following media files are not optimized for Final Cut Pro HD...". The Audio works fine, but I would like to get rid of the warning.

The SoundDescription that I create looks like this:

SoundDescriptionHandle hSoundDesc = (SoundDescriptionHandle)NewHandle (sizeof(SoundDescription)); (*hSoundDesc)->descSize = sizeof(SoundDescription); (*hSoundDesc)->dataFormat = k16BitBigEndianFormat; (*hSoundDesc)->resvd1 = (*hSoundDesc)->resvd2 = 0; (*hSoundDesc)->dataRefIndex = 1; (*hSoundDesc)->version = 1; (*hSoundDesc)->revlevel = 0; (*hSoundDesc)->vendor = 0; (*hSoundDesc)->packetSize = 0; (*hSoundDesc)->numChannels = 2; (*hSoundDesc)->sampleSize = 16; (*hSoundDesc)->sampleRate = rate32khz; (*hSoundDesc)->compressionID = 0;

And media gets added like this:

err = AddMediaSample2(audioMedia, // the Media (UInt8*)veryLargeOutputBuffer, // const UInt8 * dataIn outputBytes, // ByteCount size 1, // TimeValue64 decodeDurationPerSample 0, // TimeValue64 displayOffset (SampleDescriptionHandle)hSoundDesc, // SampleDescriptionHandle sampleDescriptionH outputFrames, // ItemCount numberOfSamples 0, // MediaSampleFlags sampleFlags NULL); // TimeValue64 * sampleDecodeTimeOut

Any ideas what I need to do so that FCP will not give warnings? Like I said, everything else works. Its just the warning I am think it is the way I am describing the sound in the QT file.

Thanks in advance

Mark

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Follow-Ups:

Re: How to save sound that FCP likes?
From: Daniel Steinberg <email@hidden>
Re: How to save sound that FCP likes?
From: Daniel Steinberg <email@hidden>
breaking-up soundtrack (QTMovieRateChangesPreservePitchAttribute)
From: arri <email@hidden>


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