Coda (Oculus) vs. ElevenLabs Flash 2.5 (Bella)

Rime coda (astra voice) vs ElevenLabs Flash 2.5 (Bella voice). Both sides synthesized at 24kHz mono 16-bit PCM from the same perceptual-subset English evalset. Note: voices differ across sides (coda is private beta; closest comparable female voices were chosen).

Overall

elevenlabs_flash25_matilda (Model B)

0.75

rime_coda_oculus (Model A)

By Tag

elevenlabs_flash25_matilda (Model B)

rime_coda_oculus (Model A)

Answers

2. rime_coda_oculus (Model A) is more natural

-1

-2. elevenlabs_flash25_matilda (Model B) is more natural

119 (34.00%)

115 (32.86%)

44 (12.57%)

52 (14.86%)

20 (5.71%)

Deep analysis

2. rime_coda_oculus (Model A) is more natural

-1

-2. elevenlabs_flash25_matilda (Model B) is more natural

		Tags	Statistics
00:00 --:-- rime/oculus/047_47a05300af6e.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/047_47a05300af6e.wav	rime_coda_oculus elevenlabs_flash25_matilda	numbers fillers spk_oculus src_Customer_data numbers fillers spk_matilda src_Customer_data	0.71 0.88 0.36
00:00 --:-- rime/oculus/015_f360f2184934.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/015_f360f2184934.wav	rime_coda_oculus elevenlabs_flash25_matilda	medical spk_oculus src_LLM_generated medical spk_matilda src_LLM_generated	-0.57 1.18 0.48
00:00 --:-- rime/oculus/030_9bfdae4e5d03.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/030_9bfdae4e5d03.wav	rime_coda_oculus elevenlabs_flash25_matilda	long callcenter spk_oculus src_Customer_data long callcenter spk_matilda src_Customer_data	0.43 1.40 0.57
00:00 --:-- rime/oculus/049_efb0eb6086fa.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/049_efb0eb6086fa.wav	rime_coda_oculus elevenlabs_flash25_matilda	conversational callcenter fillers spk_oculus src_Customer_data conversational callcenter fillers spk_matilda src_Customer_data	0.71 1.28 0.52
00:00 --:-- rime/oculus/025_4e34624326ad.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/025_4e34624326ad.wav	rime_coda_oculus elevenlabs_flash25_matilda	numbers abbreviation spk_oculus src_Customer_data numbers abbreviation spk_matilda src_Customer_data	1.00 1.31 0.53
00:00 --:-- rime/oculus/042_248c24e07aa4.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/042_248c24e07aa4.wav	rime_coda_oculus elevenlabs_flash25_matilda	conversational long question spk_oculus src_Customer_data conversational long question spk_matilda src_Customer_data	0.71 1.28 0.52
00:00 --:-- rime/oculus/009_a850a33305bd.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/009_a850a33305bd.wav	rime_coda_oculus elevenlabs_flash25_matilda	legal long spk_oculus src_LLM_generated legal long spk_matilda src_LLM_generated	0.71 1.48 0.61
00:00 --:-- rime/oculus/023_d67fd24ef081.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/023_d67fd24ef081.wav	rime_coda_oculus elevenlabs_flash25_matilda	numbers conversational spk_oculus src_Customer_data numbers conversational spk_matilda src_Customer_data	1.00 1.41 0.58

Overall

elevenlabs_flash25_matilda (Model B)

0.75

rime_coda_oculus (Model A)

By Tag

elevenlabs_flash25_matilda (Model B)

rime_coda_oculus (Model A)

Answers

2. rime_coda_oculus (Model A) is more natural

-1

-2. elevenlabs_flash25_matilda (Model B) is more natural

119 (34.00%)

115 (32.86%)

44 (12.57%)

52 (14.86%)

20 (5.71%)

Deep analysis

2. rime_coda_oculus (Model A) is more natural

-1

-2. elevenlabs_flash25_matilda (Model B) is more natural

		Tags	Statistics
00:00 --:-- rime/oculus/047_47a05300af6e.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/047_47a05300af6e.wav	rime_coda_oculus elevenlabs_flash25_matilda	numbers fillers spk_oculus src_Customer_data numbers fillers spk_matilda src_Customer_data	0.71 0.88 0.36
00:00 --:-- rime/oculus/015_f360f2184934.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/015_f360f2184934.wav	rime_coda_oculus elevenlabs_flash25_matilda	medical spk_oculus src_LLM_generated medical spk_matilda src_LLM_generated	-0.57 1.18 0.48
00:00 --:-- rime/oculus/030_9bfdae4e5d03.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/030_9bfdae4e5d03.wav	rime_coda_oculus elevenlabs_flash25_matilda	long callcenter spk_oculus src_Customer_data long callcenter spk_matilda src_Customer_data	0.43 1.40 0.57
00:00 --:-- rime/oculus/049_efb0eb6086fa.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/049_efb0eb6086fa.wav	rime_coda_oculus elevenlabs_flash25_matilda	conversational callcenter fillers spk_oculus src_Customer_data conversational callcenter fillers spk_matilda src_Customer_data	0.71 1.28 0.52
00:00 --:-- rime/oculus/025_4e34624326ad.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/025_4e34624326ad.wav	rime_coda_oculus elevenlabs_flash25_matilda	numbers abbreviation spk_oculus src_Customer_data numbers abbreviation spk_matilda src_Customer_data	1.00 1.31 0.53
00:00 --:-- rime/oculus/042_248c24e07aa4.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/042_248c24e07aa4.wav	rime_coda_oculus elevenlabs_flash25_matilda	conversational long question spk_oculus src_Customer_data conversational long question spk_matilda src_Customer_data	0.71 1.28 0.52
00:00 --:-- rime/oculus/009_a850a33305bd.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/009_a850a33305bd.wav	rime_coda_oculus elevenlabs_flash25_matilda	legal long spk_oculus src_LLM_generated legal long spk_matilda src_LLM_generated	0.71 1.48 0.61
00:00 --:-- rime/oculus/023_d67fd24ef081.wav 00:00 --:-- elevenlabs/XrExE9yKIg1WjnnlVkGX/023_d67fd24ef081.wav	rime_coda_oculus elevenlabs_flash25_matilda	numbers conversational spk_oculus src_Customer_data numbers conversational spk_matilda src_Customer_data	1.00 1.41 0.58