Rev audio clips
Hi all, After learning about the binary string produced by compress(), i am curious to know if one of the professional audio experts in this platform have examined the converted audio clips that Rev uses internally, after importing an audio file. By trial and error, you could isolate the audio binary string from a saved stack. Then, analize and compare with the original imported audio clip, saved in different audio formats. Thanks in advance! Alejandro ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
Re: Rev audio clips
On 18/05/2010 22:17, Alejandro Tejada wrote: Hi all, After learning about the binary string produced by compress(), i am curious to know if one of the professional audio experts in this platform have examined the converted audio clips that Rev uses internally, after importing an audio file. By trial and error, you could isolate the audio binary string from a saved stack. Oh Yuck! I made a new stack ZOUND and imported an AIFF sound ZND.aiff into it. I then cracked both the stack and the sound file open with HexEdit: http://hexedit.sourceforge.net/ and could NOT find the 'audio binary string' in the stack. Maybe I went about things the wrong way . . . :) Then, analize and compare with the original imported audio clip, saved in different audio formats. ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
Re: Rev audio clips
Assuming that Rev stores audio file data sequentially in the first place, one would have to search for a pattern of binary data AFTER the headers, which would not be stored in the stack. Check for where the headers end and where your test data starts and just use a small sample to search for, like the first 50 bytes.. Use a tiny sound for tests. http://www.sonicspot.com/guide/wavefiles.html http://www-mmsp.ece.mcgill.ca/Documents/AudioFormats/AIFF/AIFF.html On 18 May 2010 13:02, Richmond Mathewson richmondmathew...@gmail.comwrote: On 18/05/2010 22:17, Alejandro Tejada wrote: Hi all, After learning about the binary string produced by compress(), i am curious to know if one of the professional audio experts in this platform have examined the converted audio clips that Rev uses internally, after importing an audio file. By trial and error, you could isolate the audio binary string from a saved stack. Oh Yuck! I made a new stack ZOUND and imported an AIFF sound ZND.aiff into it. I then cracked both the stack and the sound file open with HexEdit: http://hexedit.sourceforge.net/ and could NOT find the 'audio binary string' in the stack. Maybe I went about things the wrong way . . . :) Then, analize and compare with the original imported audio clip, saved in different audio formats. ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution -- - Stephen Barncard Back home in SF ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
Re: Rev audio clips
Hi, Download these stacks and this audio clip: http://andregarzia.on-rev.com/alejandro/stacks/New_stacks_with_sample_au.zip This compressed file contains 3 files: 1 new stack, created and saved inmediatly without any change. (1k) 1 stack, created and inmediatly imported the audio clip sample.au (138k) 1 audio clip sample.au from Wikipedia. After opening the stack (with audio clip) and the audio clip in Hex viewer, i noticed that almost the whole audio clip is appended to the stack. Just like Steven wrote, probably only file headers are left out of the stack. Now, more test are needed to verify which other formats are appended as is and which audio clips are converted. This is relevant, given than previously in this mail list, someone ask about how to export audioclips from Runrev. Alejandro -- View this message in context: http://runtime-revolution.278305.n4.nabble.com/Rev-audio-clips-tp2221758p058.html Sent from the Revolution - User mailing list archive at Nabble.com. ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
Re: Rev audio clips
RIGHT. But there's a way to go; what you are trying to do is go behind Rev's back and obtain the data. Simpler with one audio file, but what if there are hundreds? One could find the start and stop points for audio data that Rev uses in the files, find the parts that will be stripped, put them into the audioclip as a custom property (yes audioclips have custom properties.) Another way would be to tap into the IDE asset database to obtain the location of this data. I guess one could just get one to work, and copy single audio clips to an invisible stack for export, then delete the stack. Another way to do it that will work right now would be to import the audio file as an audioclip, and at the same time save the same audio file into a custom property *of* the audioclip. Two copies; one to export and one to play. And will require no reverse engineering or making wild guesses about what the API does. Bloated for sure, but does it matter in this day of monster hard drives? Creeps me out about the waste though. On 18 May 2010 16:19, Alejandro Tejada capellan2...@gmail.com wrote: Hi, Download these stacks and this audio clip: http://andregarzia.on-rev.com/alejandro/stacks/New_stacks_with_sample_au.zip This compressed file contains 3 files: 1 new stack, created and saved inmediatly without any change. (1k) 1 stack, created and inmediatly imported the audio clip sample.au (138k) 1 audio clip sample.au from Wikipedia. After opening the stack (with audio clip) and the audio clip in Hex viewer, i noticed that almost the whole audio clip is appended to the stack. Just like Steven wrote, probably only file headers are left out of the stack. Now, more test are needed to verify which other formats are appended as is and which audio clips are converted. This is relevant, given than previously in this mail list, someone ask about how to export audioclips from Runrev. Alejandro -- View this message in context: http://runtime-revolution.278305.n4.nabble.com/Rev-audio-clips-tp2221758p058.html Sent from the Revolution - User mailing list archive at Nabble.com. ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution -- - Stephen Barncard Back home in SF ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
