tree d722fcdc3c38d93f9f9bf5610362a62cb8976e1a
parent 5eba08f3c0ca1eaa5411970731723a970fb50077
author Keun young Park <keunyoung@google.com> 1337031519 -0700
committer Keun young Park <keunyoung@google.com> 1337031956 -0700

Improve spectrum testing for recording

- Use PSD of each signals as base line for comparison:
  ratio = sqrt(PSD_DUT / PSD_host)
  The ratio is normalized for its mean value for the checked freq range.
- random signal generator changed to have only max frequency

Change-Id: I3639d70c4b6159061ada6ca9ac8f43e48f559275