Table 1: Comparison of compression approaches.

n
o
i
s
s
e
r
p
m
o
C
91.16

t
e
g
r
a
T
8
24
24
6

44.1
24
48
24

512
320
320
320

86
75
150
75

SoundStream

9
32
16
8

EnCodec

16
32
64

f
o
#

S

3.1 Periodic activation function

Audio waveforms are known to exhibit high periodicity (especially in voiced components, music,
etc.) While current non-autoregressive audio generation architectures are capable of generating high
fidelity audio, they often exhibit jarring pitch and periodicity artifacts [25]. Moreover, common

3
RVQGAN