distil-large-v2
3.7
11.2
15.1
7.8
12.2
3.7
11.6
10.0

24

Table 18: Per-dataset WER scores for the sequential and chunked long-form transcription algo-
rithms. The macro-average WER scores are shown for the one ID dataset, four OOD datasets, and
an overall average over all five test sets.

Dataset

TED-LIUM
Earnings 21
Earnings 22
Meanwhile
Rev 16
ID Average
OOD Average
Average

large-v2
sequential
4.0
10.7
14.0
5.2
11.7
4.0
10.4
9.1

large-v2
chunked
4.4
11.8
15.1
6.3
13.6
4.4
11.7
10.2

distil-large-v2
chunked

3.7
11.2
15.1
7.8
12.2
3.7
11.6
10.0

Table 19: Per-dataset repeated 5-gram word duplicates (5-Dup.), insertion error rate (IER), substi-
tution error rate (SER), deletion error rate (DER) and word error rate (WER) for the five long-form
datasets. An average is shown for the ID dataset (TED-LIUM), the four OOD datasets, and an
overall average.

Dataset

TED-LIUM

Earnings-21

Earnings-22

Meanwhile

Rev 16

ID Average

OOD Average

Average
DISTIL-WHISPER