Re: [FFmpeg-user] Decode 360 reality audio (mpeg-h 3d) to ADM BWF format

[Joy Jin]

 I guess just a product / feature name? I believe they based this on mpeg-h
though.

Link: https://electronics.sony.com/360-reality-audio

The decoder I’ve tried (only outputs peak limited channel):
https://github.com/ittiam-systems/libmpegh

在 2023年1月4日 22:25:30 上，Paul B Mahol  写道：

> On Wed, Jan 4, 2023 at 3:18 PM Joy Jin  wrote:
>
> Hello,
>
>
> Cavern  is a tool that I can use to
>
> decode eac3 to ADM BWF. Is there a tool that I can use to decode Sony’s 360
>
> reality audio format (mpeg-h 3d) to ADM BWF? (Reason being, gain is set too
>
> high so DRC / peak limiting is way too aggressive, and I have no option to
>
> change that.) I’ve asked everywhere and it seems like the answer is no.
>
>
>
> What is 'reality' in this context?
>
>
> Below is a mediainfo on a sample file:
>
>
> General
>
>
> Complete name: /Users/jin/Desktop/Music/Stem
>
> Separation/Tidal/YOASOBI - 360/ THE BOOK (360 Reality Audio) [203033692]
>
> [2021]/06 - YOASOBI - 群青 (360 Reality Audio).mp4
>
>
> Format   : MPEG-4
>
>
> Format profile   : Base Media / Version 2
>
>
> Codec ID : mp42 (mp42/isom)
>
>
> File size: 19.8 MiB
>
>
> Duration : 4 min 8 s
>
>
> Overall bit rate : 670 kb/s
>
>
> Encoded date : UTC 2021-09-18 08:59:38
>
>
> Tagged date  : UTC 2021-09-18 08:59:38
>
>
>
> Audio
>
>
> ID   : 1
>
>
> Format   : MPEG-H 3D Audio
>
>
> Format profile   : LC@L3
>
>
> Codec ID : mha1
>
>
> Duration : 4 min 8 s
>
>
> Source duration  : 4 min 8 s
>
>
> Bit rate : 666 kb/s
>
>
> Channel(s)   : 12 channels (7.1.4)
>
>
> Channel layout   : L R C LFE Lb Rb Lss Rss Tfl Tfr
>
> Tbl Tbr
>
>
> Sampling rate: 48.0 kHz
>
>
> Frame rate   : 46.875 FPS (1024 SPF)
>
>
> Stream size  : 19.7 MiB (99%)
>
>
> Source stream size   : 19.7 MiB (100%)
>
>
> Encoded date : UTC 2021-09-18 08:59:38
>
>
> Tagged date  : UTC 2021-09-18 08:59:38
>
>
> Signal group #1  : 10 objects
>
>
>  Type: Object
>
>
>  Number of objects   : 10 objects
>
>
> Codec configuration box  : mhaC
>
>
> Thank you,
>
> Joy
>
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>
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Re: [FFmpeg-user] Decode 360 reality audio (mpeg-h 3d) to ADM BWF format

[Paul B Mahol]

On Wed, Jan 4, 2023 at 3:18 PM Joy Jin  wrote:

> Hello,
>
> Cavern  is a tool that I can use to
> decode eac3 to ADM BWF. Is there a tool that I can use to decode Sony’s 360
> reality audio format (mpeg-h 3d) to ADM BWF? (Reason being, gain is set too
> high so DRC / peak limiting is way too aggressive, and I have no option to
> change that.) I’ve asked everywhere and it seems like the answer is no.
>

What is 'reality' in this context?


> Below is a mediainfo on a sample file:
>
> General
>
> Complete name: /Users/jin/Desktop/Music/Stem
> Separation/Tidal/YOASOBI - 360/ THE BOOK (360 Reality Audio) [203033692]
> [2021]/06 - YOASOBI - 群青 (360 Reality Audio).mp4
>
> Format   : MPEG-4
>
> Format profile   : Base Media / Version 2
>
> Codec ID : mp42 (mp42/isom)
>
> File size: 19.8 MiB
>
> Duration : 4 min 8 s
>
> Overall bit rate : 670 kb/s
>
> Encoded date : UTC 2021-09-18 08:59:38
>
> Tagged date  : UTC 2021-09-18 08:59:38
>
>
> Audio
>
> ID   : 1
>
> Format   : MPEG-H 3D Audio
>
> Format profile   : LC@L3
>
> Codec ID : mha1
>
> Duration : 4 min 8 s
>
> Source duration  : 4 min 8 s
>
> Bit rate : 666 kb/s
>
> Channel(s)   : 12 channels (7.1.4)
>
> Channel layout   : L R C LFE Lb Rb Lss Rss Tfl Tfr
> Tbl Tbr
>
> Sampling rate: 48.0 kHz
>
> Frame rate   : 46.875 FPS (1024 SPF)
>
> Stream size  : 19.7 MiB (99%)
>
> Source stream size   : 19.7 MiB (100%)
>
> Encoded date : UTC 2021-09-18 08:59:38
>
> Tagged date  : UTC 2021-09-18 08:59:38
>
> Signal group #1  : 10 objects
>
>  Type: Object
>
>  Number of objects   : 10 objects
>
> Codec configuration box  : mhaC
>
> Thank you,
> Joy
> ___
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[FFmpeg-user] Decode 360 reality audio (mpeg-h 3d) to ADM BWF format

[Joy Jin]

Hello,

Cavern  is a tool that I can use to
decode eac3 to ADM BWF. Is there a tool that I can use to decode Sony’s 360
reality audio format (mpeg-h 3d) to ADM BWF? (Reason being, gain is set too
high so DRC / peak limiting is way too aggressive, and I have no option to
change that.) I’ve asked everywhere and it seems like the answer is no.
Below is a mediainfo on a sample file:

General

Complete name: /Users/jin/Desktop/Music/Stem
Separation/Tidal/YOASOBI - 360/ THE BOOK (360 Reality Audio) [203033692]
[2021]/06 - YOASOBI - 群青 (360 Reality Audio).mp4

Format   : MPEG-4

Format profile   : Base Media / Version 2

Codec ID : mp42 (mp42/isom)

File size: 19.8 MiB

Duration : 4 min 8 s

Overall bit rate : 670 kb/s

Encoded date : UTC 2021-09-18 08:59:38

Tagged date  : UTC 2021-09-18 08:59:38


Audio

ID   : 1

Format   : MPEG-H 3D Audio

Format profile   : LC@L3

Codec ID : mha1

Duration : 4 min 8 s

Source duration  : 4 min 8 s

Bit rate : 666 kb/s

Channel(s)   : 12 channels (7.1.4)

Channel layout   : L R C LFE Lb Rb Lss Rss Tfl Tfr
Tbl Tbr

Sampling rate: 48.0 kHz

Frame rate   : 46.875 FPS (1024 SPF)

Stream size  : 19.7 MiB (99%)

Source stream size   : 19.7 MiB (100%)

Encoded date : UTC 2021-09-18 08:59:38

Tagged date  : UTC 2021-09-18 08:59:38

Signal group #1  : 10 objects

 Type: Object

 Number of objects   : 10 objects

Codec configuration box  : mhaC

Thank you,
Joy
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