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Hi,
Marc came up with this idea and wants to pursue it further. Any comments are appreciated.
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I have been spending time with my Photography Hobby, where there is a goal when you take a photo, to expose as much of the sensor as possible during the shot. Many benefits to the quality of the picture result from full use of the sensor (ISO at Base). As a useful tool to examine the raw camera data, there are software programs that provide a Histogram of the number of occurrences verse amplitude value. The EV scale is useful because of the camera settings and the vision log characteristics we have. I have attached a screen shot from the program I use (A wonderful product called RawDigger).
My proposal would be to create a similar graph for the amplitude values over the length of the song, in a histogram format. A possible Frequency component (similar to a color channel) could also be used.
I believe that a similar program for audio would be very useful for a number of reasons.
Many Acoustic songs were recorded with an "un-natural" dynamic range due to the technology at the time. I have used the Polynomial Filter to bring up the low and mid-amplitude signals to impart a normal sound. As such, a display showing the amplitude of the song's low and mid values would be useful for setting the math functions for a better result.
After a song is transcribed, the user could use this histogram to adjust if needed the recording levels to "expose as much of the music" to the A to D converter.
Your Forensics software contains a 'Histogram" feature, but I cannot use it in its present form. I modification with variable amplitude/ log/scales would correspond to our hearing and help the restoration process.
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Rick's comments:
Y axis number of occurrences , linear and log scales
X axis amplitude values in digital values, i.e. 0,2,4,...32K
Variables for "bin" size .
Computation for total song or highlighted portion.
Marc
Marc came up with this idea and wants to pursue it further. Any comments are appreciated.
----------------------------------
I have been spending time with my Photography Hobby, where there is a goal when you take a photo, to expose as much of the sensor as possible during the shot. Many benefits to the quality of the picture result from full use of the sensor (ISO at Base). As a useful tool to examine the raw camera data, there are software programs that provide a Histogram of the number of occurrences verse amplitude value. The EV scale is useful because of the camera settings and the vision log characteristics we have. I have attached a screen shot from the program I use (A wonderful product called RawDigger).
My proposal would be to create a similar graph for the amplitude values over the length of the song, in a histogram format. A possible Frequency component (similar to a color channel) could also be used.
I believe that a similar program for audio would be very useful for a number of reasons.
Many Acoustic songs were recorded with an "un-natural" dynamic range due to the technology at the time. I have used the Polynomial Filter to bring up the low and mid-amplitude signals to impart a normal sound. As such, a display showing the amplitude of the song's low and mid values would be useful for setting the math functions for a better result.
After a song is transcribed, the user could use this histogram to adjust if needed the recording levels to "expose as much of the music" to the A to D converter.
Your Forensics software contains a 'Histogram" feature, but I cannot use it in its present form. I modification with variable amplitude/ log/scales would correspond to our hearing and help the restoration process.
---------------------------------------
Rick's comments:
Y axis number of occurrences , linear and log scales
X axis amplitude values in digital values, i.e. 0,2,4,...32K
Variables for "bin" size .
Computation for total song or highlighted portion.
Marc