Generative Tasks

Low Bitrate

Models/Tasks	SE			SS			TTS
	DNSMOS ↑	dWER ↓	SpkSim ↑	DNSMOS ↑	dWER ↓	SpkSim ↑	UTMOS ↑	dWER ↓
Discrete HuBERT	3.33	15.47	0.824	3.52	80.86	0.840	3.24	2.55
Discrete WavLM	3.26	16.52	0.830	3.43	62.34	0.847	3.84	3.01
Discrete Wav2Vec2	3.55	18.86	0.779	3.75	96.70	0.787	3.32	3.45
EnCodec	3.15	34.35	0.852	3.11	83.55	0.877	1.46	8.85
DAC	3.30	57.41	0.853	3.01	102.00	0.854	1.97	10.68
SpeechTokenizer	3.18	30.13	0.858	3.13	85.25	0.874	2.51	3.69

Medium Bitrate

Models/Tasks	SE			SS			TTS
	DNSMOS ↑	dWER ↓	SpkSim ↑	DNSMOS ↑	dWER ↓	SpkSim ↑	UTMOS ↑	dWER ↓
Discrete HuBERT	3.48	12.62	0.875	3.70	66.29	0.891	3.80	3.40
Discrete WavLM	3.48	10.18	0.889	3.68	34.03	0.912	3.82	2.45
Discrete Wav2Vec2	3.54	17.60	0.858	3.75	78.42	0.866	3.68	2.89
EnCodec	3.10	19.07	0.885	3.09	48.57	0.906	1.50	9.46
DAC	3.49	31.14	0.906	3.26	55.43	0.924	1.71	71.26
SpeechTokenizer	3.49	23.44	0.876	3.42	60.75	0.906	1.96	53.26

High Bitrate

Models/Tasks	SE			SS			TTS
	DNSMOS ↑	dWER ↓	SpkSim ↑	DNSMOS ↑	dWER ↓	SpkSim ↑	UTMOS ↑	dWER ↓
EnCodec	2.87	68.22	0.814	2.95	97.73	0.839	N.C	N.C
DAC	2.95	46.07	0.860	2.53	208	0.784	N.C	N.C

Continuous Baseline

Models/Tasks	SE			SS			TTS
	DNSMOS ↑	dWER ↓	SpkSim ↑	DNSMOS ↑	dWER ↓	SpkSim ↑	UTMOS ↑	dWER ↓
SSL	3.49	4.92	0.928	3.68	9.97	0.939	3.71	2.94