Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Estimating a Signal from a Magnitude Spectrogram via Convex Optimization   The problem of recovering a signal from the magnitude of its short-time
Fourier transform (STFT) is a longstanding one in audio signal processing.
Existing approaches rely on heuristics that often perform poorly because of the
nonconvexity of the problem. We introduce a formulation of the problem that
lends itself to a tractable convex program. We observe that our method yields
better reconstructions than the standard Griffin-Lim algorithm. We provide an
algorithm and discuss practical implementation details, including how the
method can be scaled up to larger examples.

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The categories of this paper are: ao-sci
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
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The categories of this paper are: eess
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs