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two questions about FFT/IFFT

From: Matt Diamond <mdiamond@jhu.edu>
Date: Tue, 12 Apr 2016 17:24:37 -0400
Message-ID: <CADdpXtsM_VWvBBY=E=AsR6PjZ13YAoK-n8cOzuqKv8hfmknvhw@mail.gmail.com>
To: public-audio@w3.org
1) Is it possible to do a non-realtime spectral analysis of a BufferSource
using an AnalyserNode with an OfflineAudioContext?

2) Is it possible for me to use a PeriodicWave to convert an array of
frequency data from the Analyser Node back into a time-domain waveform? It
seems like this isn't possible.

Basically I'd like to come up with a web-based version of the spectral
averaging technique that R Luke DuBois employed on Timelapse... averaging
the spectral content of an entire buffer and then reproducing that content
as a sustained drone. Is that possible yet with the Web Audio API as it
currently exists?

Matt Diamond
Received on Tuesday, 12 April 2016 21:25:09 UTC

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