On Mon, 30 May 2011 08:05:24 Duaine Hechler wrote:

Please bare with me because this will be a little long:

I have an old (1976) slide and cassette presentation from Israel, that I want to try and completely update and automate.

Things that are being done:

- conversion of old 35mm slides to TIFF files

- conversion of old cassette tape to mp3 file

Things I need help with:

- need to balance music with narration (currently music over powers narration) (Audacity ?)

If they're both already recorded on the same tape, you can't perform magic. You can play around with Audacity, but if possible you might be better to try re-recording the narration and music separately. You could then mix them with Audacity to get the balance right (including using techniques like "ducking" using the compressor plugin so that the music level drops when the narrator is talking.

- cassette tape provides a "beep" on when to change slides

- from another slide presentation, added more scenic & informational slides

- how to add "beeps" for extra slides

You should be able to do this with Audacity. I don't know if Audacity has a plugin to do it, but you could simply generate (or record) the beeps and add them as a separate audio track, then mix the final result into a single mp3.

- now, the hard part, fully automate the presentation (however, do not have time to learn anything majorly complicated)

FFmpeg will help with this. You can feed it a string of images + the audio track and have it mux them into a video stream of your chosen format. The filenames of the images need to be sequential and they all need to be in the same folder. I'm not sure though if you can vary the time each image is displayed - I think they all have to be the same duration (settable via cli option). I think there are examples on the FFmpeg web site (or in the man page). There are people on the ffmpeg-user mailing list that could provide advice with this.

Thank you in advance for any and all help, Duaine

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