R
Radium
Hi:
Adobe Audition seems to be able to change the pitch of an audio file
without changing the speed at which it plays.
http://www.adobe.com/products/audition/overview2.html#kmhead3
"Time and pitch processing: Change tempo without shifting pitch — or
shift pitch without changing tempo — and never introduce audio
artifacts."
I wonder if this technique could enable astronomers to hear the sun
"sing" with having to increase the speed of the data they record. The
sun's acoustic signals are way too low-pitched for humans to hear. So
either the recording of the sun's acoustic signals has to be sped up
until the pitch is high enough for humans to hear or the pitch itself
needs to be changed using some intense processing [such as that of
Adobe Auditon]. It seems that the former method is used instead of the
latter. Why? If the audio software has sufficient abilities to increase
the pitch of infrasonic signals to that in the human audio-range --
without increase the playback speed -- then why isn't such a method
used?
To find out more about solar sound:
http://solar-center.stanford.edu/singing/singing.html
Thanks,
Radium
Adobe Audition seems to be able to change the pitch of an audio file
without changing the speed at which it plays.
http://www.adobe.com/products/audition/overview2.html#kmhead3
"Time and pitch processing: Change tempo without shifting pitch — or
shift pitch without changing tempo — and never introduce audio
artifacts."
I wonder if this technique could enable astronomers to hear the sun
"sing" with having to increase the speed of the data they record. The
sun's acoustic signals are way too low-pitched for humans to hear. So
either the recording of the sun's acoustic signals has to be sped up
until the pitch is high enough for humans to hear or the pitch itself
needs to be changed using some intense processing [such as that of
Adobe Auditon]. It seems that the former method is used instead of the
latter. Why? If the audio software has sufficient abilities to increase
the pitch of infrasonic signals to that in the human audio-range --
without increase the playback speed -- then why isn't such a method
used?
To find out more about solar sound:
http://solar-center.stanford.edu/singing/singing.html
Thanks,
Radium