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Subtitle Details

We take the English subtitle from Virtuality’s release, which in turn comes from TakaNishi’s WebRip release. Thanks to these people for creating the subtitles.
Based on Virtuality’s version, we modify OP and ED styling and spacing to make the songs more watchable.

The subtitles in this release have been subset, which means:
If you want to remux this subtitle into your release, make sure you include all the fonts and you’re good to go. Despite the number of fonts in this release, it adds up to mere 4 MiB, which is the magic of font subsetting. Thanks to people at AmusementClub that make this possible.
If you want to modify the subtitle upon my version, if you don’t mind contacting me, send me a message via Marshmallow or in Discord and I will send you the originals as well as the fonts. Alternatively if you don’t want to contact me, open the subtitle in a text editor, and replace the all generated fontname in style and \fn with the original fontname following the comments at the very top.

Filtering and Encoding Details

slow.pics from episode 01: https://slow.pics/c/IB3PIVKq.

If you want a bigger version but with better detail retention, you can opt for ReinForce’s version (1.1 GiB per episode).
If you don’t care about filesize, you can try the original BD instead (6.8 GiB per episode).

The source is very based with almost no artefacts. Only in rare occasions, especially when there are scaling involved in the original production, are there some very slight ringing around the lines. There is a layer of added noise atop the image. We decide to denoise it first in the filtering and generate it back during encoding.
To filter, we use DFTTest and vsdenoise.BM3D to denoise, and then vsdehao.edge_cleaner to clean up the remaining noise around the lines as well as the very occasional ringing.

For encoding, we use Progression Boost Preset-Butteraugli-3Norm-INFNorm-Max to deliver a rather high quality encode. This is the metric of episode 01 without film grain compared to the filtered source:

Metric	Mean	Standard Deviation	95th or 5th Percentile	Worst Single Frame
Butteraugli 3Norm	0.438	0.052	0.509	0.632
Butteraugli INFNorm	1.607	0.436	2.449	7.778
SSIMU2	89.859	1.413	87.664	83.965

We use svt-av1-psyex testing branch for the encode, and these are the encoding parameters: --preset [-1 ~ 0] --crf [7.75 ~ 25.00] --tune 0 --qm-min 8 --chroma-qm-min 10 --luminance-qp-bias 8 --qp-scale-compress-strength 3 --noise-norm-strength 4 --film-grain 0 --complex-hvs 1 --psy-rd 3.5 --spy-rd 0.
After svt-av1-psyex, we use av1an’s --photon-noise 9 to generate a similar level of noise compared to the source.

Thanks to all the people creating the tools, plugins and vsfunc’s that make this possible, and thanks to everyone in the community for teaching me and giving me advice.

You are welcome to join AV1 weeb edition at https://discord.gg/83dRFDFDp7.

Media Info

For episode 05, 08, 11, 12, and 13:

Track	Language	Source	Codec	Remark
Video	Japanese	JPBD from 02@U2	AV1	Filtered and Reencoded
Audio	Japanese	JPBD from 02@U2	FLAC	Reencoded
Subtitle	Japanese	JPBD from 02@U2	PGS	Untouched
Subtitle	Chinese (Simplified) & Japanese	北宇治字幕组	ASS	Timing shifted to match JPBD by Nazuna@bbs.acgrip.com
Subtitle	Chinese (Traditional) & Japanese	北宇治字幕組	〃	Timing shifted to match JPBD by Nazuna@bbs.acgrip.com
Subtitle	English	KanadeBestGirl / Virtuality / TakaNishi	〃	Improved OP and ED styling and spacing

For episode 01, 02, 03, 04, 06, 07, 09, and 10:

Track	Language	Source	Codec	Remark
Video	Japanese	JPBD from 02@U2	AV1	Filtered and Reencoded
Audio	Japanese	JPBD from 02@U2	Opus	Reencoded
Subtitle	Japanese	JPBD from 02@U2	PGS	Untouched
Subtitle	Chinese (Simplified) & Japanese	北宇治字幕组	ASS	Timing shifted to match JPBD by Nazuna@bbs.acgrip.com
Subtitle	Chinese (Traditional) & Japanese	北宇治字幕組	〃	Timing shifted to match JPBD by Nazuna@bbs.acgrip.com
Subtitle	English	KanadeBestGirl / Virtuality / TakaNishi	〃	Improved OP and ED styling and spacing

For extra episodes:

Track	Language	Source	Codec	Remark
Video	Japanese	JPBD from 02@U2	AV1	Filtered and Reencoded
Audio	Japanese	JPBD from 02@U2	Opus	Reencoded
Subtitle	Japanese	JPBD from 02@U2	PGS	Untouched
Subtitle	English	Maoam	ASS	〃

English chapters included for episode 01 to 13.

Thanks to wanghy@TSDM for providing the track ⎘ 一年の詩 ～吹奏楽のための (全国大会金賞 Ver.) included in this release.
Thanks to all the people making fansubs and providing the source that make this release possible.

We recommend using mpv to playback our releases. Thank you for seeding after download.
Feedback is welcome via Marshmallow: https://marshmallow-qa.com/s8bbyicls38av1j.