Return-Path: X-Original-To: tools-discuss@mail2.ietf.org Delivered-To: tools-discuss@mail2.ietf.org Received: from localhost (localhost [127.0.0.1]) by mail2.ietf.org (Postfix) with ESMTP id BF843848C9E5 for ; Thu, 6 Nov 2025 09:14:28 -0800 (PST) X-Virus-Scanned: amavisd-new at ietf.org X-Spam-Flag: NO X-Spam-Score: -1.897 X-Spam-Level: X-Spam-Status: No, score=-1.897 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001] autolearn=ham autolearn_force=no Authentication-Results: mail2.ietf.org (amavisd-new); dkim=pass (2048-bit key) header.d=rtfm-com.20230601.gappssmtp.com Received: from mail2.ietf.org ([166.84.6.31]) by localhost (mail2.ietf.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id j6sorps7aD8r for ; Thu, 6 Nov 2025 09:14:27 -0800 (PST) Received: from mail-yx1-xb12d.google.com (mail-yx1-xb12d.google.com [IPv6:2607:f8b0:4864:20::b12d]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail2.ietf.org (Postfix) with ESMTPS id C4900848C9D6 for ; Thu, 6 Nov 2025 09:14:27 -0800 (PST) Received: by mail-yx1-xb12d.google.com with SMTP id 956f58d0204a3-63bc1aeb427so1180852d50.3 for ; Thu, 06 Nov 2025 09:14:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rtfm-com.20230601.gappssmtp.com; s=20230601; t=1762449261; x=1763054061; darn=ietf.org; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=fd9x6o+Nj3xKpqN3dOufxc+4ZePpYeYniMwH+Ws5Rw0=; b=RxJsHqZC8/vTywHPSvme2VUMMOreLqwFc9IICYqkimFxDRqwt+9+FS8J0U1iWW8140 6g8Os4/tS1L4Uc0PggvTUu8Xa0FQyWRgVD3KOMcvlzoiR6MrOFJQNdSbgPI3/xvwP13K FE9lOlrKqLHS6GSNNr1jiuaSLvbOeb1SjPwjDKz3aYswUg07R2QcbeNz4quZuWJdw3JZ O41djyeBIJoylLqlKQrpSJTNQB41KBndFwdiYoq0pEDNHJxdnhW7hwe+bohmbRAeJ3ad nEph/lFCDAC8M8vd7WhRqFVHKB2jBxLmEmlbv4dRhE2hdrY/R+frhI+tlH+BkvfFAwRH N7PA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1762449261; x=1763054061; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=fd9x6o+Nj3xKpqN3dOufxc+4ZePpYeYniMwH+Ws5Rw0=; b=sGaFs0HiudlIIyfC/nyZkEEknznDfpD3Gc+vq7bUfhoYBGygh2G0ift3xtid5ZTs1W 7FTyTXIWj1bHetJ/nZye3mp6I69xatAWN4BIn9v+3Mr9hxkJf8wPd/TaBw2k81eLvrVn irHqp0gMai0x4WtuX0IvV/haMqmO1F1+p5d1qSIa4bTRl5tBSxh+8i1gCQaZupxPGrTc WpVJ1WXAtknSxgdXxptP+JbL21J1It0sC0293gFkowThV1ww3YshO+Hmh4QtEw96PFYc ++rECm6plonb1nIf5cs6UeJC3PAmLW42kWki9UTUQK6bNYD7/TJ6Yk9fClcTzacGQMrr TNFw== X-Forwarded-Encrypted: i=1; AJvYcCXUukfCqUAH3cTSRaDI1+rsQ9TFEf5ExNSulngC2wun8h10BaFRA3tl+AqTZr0t71smAEgWV5grRRB331va@ietf.org X-Gm-Message-State: AOJu0YxzKfiykI7L73gvmt8DGOjz6o7ExfW1I+GqPAdfUpRmTAqMEq9u UVun8FBeCoQj9LuY6GKoPiJ3Bpi6XdOGMHtGTVZ50gvBI7HYAEGf5k13iVhubzIe7AUaOuGWY/x mh2MR5SSrub7Gji5ZQgGor1vFz3op8ojFhQm9Jp/vcQ== X-Gm-Gg: ASbGncsrM15pXO/QpCH5oaMmiUBFXiUH1KbBTPsGRFR0Hl0ta3J7MalqSXQRxFZasQE 4UXkZ/FeWSWWASoaKlhwLrBupCn9VJrEFBZOO8xoUUOlwPjSH1OUET2RgQjvoE0YJsjPFcv1ZLp CwKnCcF3lNGLUZ2MJJmmIcMFPC/GJ3Km0nJTm72CJqUePITnLa/I0EmT3z+G18ESR8dnM4cpESw phxb9ktWmq/Jp4KXAMdMid64Bbw2gbkzjtB90Vk4rQuwjSYouq5xDIbQUi3nWT+H0ftSlpsej7s queCHNNjzJgEjbDZwvJfrnWlXMLvl5W+jEJhRMyDmR0Ga7MpS/0vU2mhDW0tZO1zyKmn/1L59Rb kdpoADqi7l5grI+fC3i8U3hdEFZQ= X-Google-Smtp-Source: AGHT+IES22pyAW90xwfYubK77f2bUMn2+tvSEyHmHyQNiEx3jr5yFBzuCnTe8pAwtuZ1GJHgaLu0a9+iAcNSqehAWu0= X-Received: by 2002:a05:690e:258c:b0:63f:bf9b:d72c with SMTP id 956f58d0204a3-640c41ec54emr100596d50.28.1762449260845; Thu, 06 Nov 2025 09:14:20 -0800 (PST) MIME-Version: 1.0 References: <389f5ad1-d1e0-462c-b038-2ee171177dbc@gmail.com> <63995FB2-0B0E-4843-8B1D-D0509AB7BFDA@bangj.com> <20251106175330.13fe4750@lminiero> In-Reply-To: From: Eric Rescorla Date: Thu, 6 Nov 2025 09:13:44 -0800 X-Gm-Features: AWmQ_bnw33oshuvi3lk_8MmG3KALv7uHRdjs7IlP0HSXbf7X0GPcSCCdMIqovQE Message-ID: To: Robert Sparks Content-Type: multipart/alternative; boundary="00000000000020af640642f0320e" Message-ID-Hash: CFOU76XTPBXLDG7MLRGINMBSIYNP5RGT X-Message-ID-Hash: CFOU76XTPBXLDG7MLRGINMBSIYNP5RGT X-MailFrom: ekr@rtfm.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-tools-discuss.ietf.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: Rob Sayre , tools-discuss X-Mailman-Version: 3.3.9rc6 Precedence: list Subject: =?utf-8?q?=5BTools-discuss=5D_Re=3A_Session_audio_recording?= List-Id: IETF Tools Discussion Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: --00000000000020af640642f0320e Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Thu, Nov 6, 2025 at 9:08=E2=80=AFAM Robert Sparks = wrote: > We are storing the bits. > > We are using YouTube and Cloudflare Stream to make them available > (there's a toggle on the meetecho player to use Cloudflare Stream now, > and before 125, we'll have the Cloudflare stream urls in the datatracker > along with the Youtube ones). > > The options we have for making the bits available for _download_ from > our copies are changing. I'll be looking into whether that's something > we can do, and whether we can make, e.g., audio only downloads available > as well. > Thanks. That would be great. I would be fine with downloading video and just processing the audio, but obviously it would be cheaper for IETF to provide audio only. -Ekr > RjS > > On 11/6/25 11:53 AM, Lorenzo Miniero wrote: > > On Thu, 6 Nov 2025 08:36:15 -0800 > > Rob Sayre wrote: > > > >> Well it makes sense, sort of. Even though hosting the files would not > >> be expensive, someone has to take care of it, and it is a different > >> task than writing Python and HTML while dealing with IETF details. I > >> think it would be easy to put them on S3 or equivalent (Cloudflare, > >> etc have competitors and the API is open, so the AWS tools work with > >> most of them). That would create an ever-increasing bill as we add > >> recordings. > >> > >> In the meantime, it occurred to me that Ekr can use the "youtube-dl" > >> tool to make this work right now. > >> > >> https://github.com/ytdl-org/youtube-dl/blob/master/README.md#readme > >> > >> -x, --extract-audio Convert video files to audio-only files > >> (requires ffmpeg/avconv and > >> ffprobe/avprobe) > >> > > > > Yes, I thought about tools like youtube-dl (or yt-dlp) too, but -x > > would not be what I'd go to if you want to save the download bandwidth. > > Those tools have a --list-formats option that allows you to list which > > options are available for download, and some of them will be audio- or > > video-only. For instance, from a check I made with a TLS recording from > > IETF 124: > > > > yt-dlp -F "https://yewtu.be/watch?v=3DzTAuEx9Otys" > > > > formats 233 and 234 look like audio-only available options, meaning > > that they can be picked selectively: > > > > yt-dlp -f 233 "https://yewtu.be/watch?v=3DzTAuEx9Otys" > > > > In this case, this only downloads 25MB (mp4 file with AAC codec). > > > > Lorenzo > > > > > >> thanks, > >> Rob > >> > >> On Thu, Nov 6, 2025 at 7:49=E2=80=AFAM Tom Pusateri > >> wrote: > >> > >>> I have discussed this in the past for use with the mobile apps. > >>> > >>> I had asked for all the individual raw files be archived for audio > >>> and video but this request was rejected. The problem seemed to be > >>> that the IETF didn=E2=80=99t want to provide the storage for this. So= they > >>> generate a file to upload to YouTube and delete the originals. > >>> > >>> I wanted to play around with different ways to present the audio > >>> and video through the mobile apps such that you could have just > >>> audio and have it play in the background while driving or on a > >>> walk. Or switch between video and high quality synchronized slides. > >>> > >>> I also experimented with speech to text systems and speaker > >>> identification algorithms. But without a reliable source of the > >>> audio files, I lost interest in the project. > >>> > >>> Tom > >>> > >>> > >>>> On Nov 5, 2025, at 11:05=E2=80=AFPM, Rob Sayre wr= ote: > >>>> > >>>> Oh, some of them do have .m3u but I am not sure how that works. > >>>> Maybe > >>> just a few paragraphs of documentation, since the feature already > >>> seems to be there (but only sometimes? idk). How do we get the > >>> headphones link there? > >>>> thanks, > >>>> Rob > >>>> > >>>> (not unaware that I am sending "how do I get the headphones > >>>> button?" to > >>> an IETF list) > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> On Wed, Nov 5, 2025 at 2:50=E2=80=AFPM Eric Rescorla = wrote: > >>>> > >>>> > >>>> On Wed, Nov 5, 2025 at 2:46=E2=80=AFPM Watson Ladd > >>>> > >>> wrote: > >>>> > >>>> On Wed, Nov 5, 2025, 2:38=E2=80=AFPM Eric Rescorla wr= ote: > >>>> > >>>> > >>>> On Wed, Nov 5, 2025 at 2:32=E2=80=AFPM Rob Sayre = wrote: > >>>> > >>>> > >>>> On 11/5/25 1:02 PM, Eric Rescorla wrote: > >>>>> Is there a straightforward way to just get the audio recording > >>>>> for a given session? > >>>>> > >>>> Hi, > >>>> > >>>> It's a fair question--sometimes they have had links for that from > >>>> MeetEcho, but this time around it seems like there are no mp3 > >>>> files, only YouTube and Cloudflare video (which confusingly looks > >>>> like SoundCloud?). > >>>> > >>>> > >>>> These should be on BitTorrent, but in practice it doesn't matter. > >>>> YouTube works fine and the video overhead isn't too bad because > >>>> it's just slides that don't really change most of the time over > >>>> each frame, and you need to show the "Note Well" without wasting > >>>> everyone's time by reading it out. > >>>> > >>>> What I'm looking to do here is not to avoid the bandwidth > >>>> associated with the video but to be able to download the audio so > >>>> I can feed it into a speech to text model. > >>>> > >>>> The model can also give you the baroque (is there any other kind) > >>>> of > >>> ffmpeg invocation to strip out just the audio. > >>>> Indeed it could, if the video were available for download at some > >>>> > >>> official URL. > >>>> -Ekr > >>>> > >>>> > >>>> -Ekr > >>>> ----------------------------------------------- > >>>> Tools-discuss mailing list -- tools-discuss@ietf.org > >>>> To unsubscribe send an email to tools-discuss-leave@ietf.org > >>>> https://mailarchive.ietf.org/arch/browse/tools-discuss/ > >>>> ----------------------------------------------- > >>>> Tools-discuss mailing list -- tools-discuss@ietf.org > >>>> To unsubscribe send an email to tools-discuss-leave@ietf.org > >>>> https://mailarchive.ietf.org/arch/browse/tools-discuss/ > >>> > >>> > > > > > > ----------------------------------------------- > Tools-discuss mailing list -- tools-discuss@ietf.org > To unsubscribe send an email to tools-discuss-leave@ietf.org > https://mailarchive.ietf.org/arch/browse/tools-discuss/ --00000000000020af640642f0320e Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable



On Thu, Nov 6, 2025 at 9:08=E2=80=AFAM Robert Sparks <rjsparks@nostrum.com>= wrote:
We are s= toring the bits.

We are using YouTube and Cloudflare Stream to make them available
(there's a toggle on the meetecho player to use Cloudflare Stream now, =
and before 125, we'll have the Cloudflare stream urls in the datatracke= r
along with the Youtube ones).

The options we have for making the bits available for _download_ from
our copies are changing. I'll be looking into whether that's someth= ing
we can do, and whether we can make, e.g., audio only downloads available as well.

Thanks.=C2=A0That would be gre= at. I would be fine with downloading video
and just processing th= e audio, but obviously it would be cheaper for
IETF to provide au= dio only.

-Ekr


=


RjS

On 11/6/25 11:53 AM, Lorenzo Miniero wrote:
> On Thu, 6 Nov 2025 08:36:15 -0800
> Rob Sayre <sa= yrer@gmail.com> wrote:
>
>> Well it makes sense, sort of. Even though hosting the files would = not
>> be expensive, someone has to take care of it, and it is a differen= t
>> task than writing Python and HTML while dealing with IETF details.= I
>> think it would be easy to put them on S3 or equivalent (Cloudflare= ,
>> etc have competitors and the API is open, so the AWS tools work wi= th
>> most of them). That would create an ever-increasing bill as we add=
>> recordings.
>>
>> In the meantime, it occurred to me that Ekr can use the "yout= ube-dl"
>> tool to make this work right now.
>>
>> https://github.com/ytdl-= org/youtube-dl/blob/master/README.md#readme
>>
>> -x, --extract-audio=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Convert vide= o files to audio-only files
>>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0(r= equires ffmpeg/avconv and
>>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0ff= probe/avprobe)
>>
>
> Yes, I thought about tools like youtube-dl (or yt-dlp) too, but -x
> would not be what I'd go to if you want to save the download bandw= idth.
> Those tools have a --list-formats option that allows you to list which=
> options are available for download, and some of them will be audio- or=
> video-only. For instance, from a check I made with a TLS recording fro= m
> IETF 124:
>
>=C2=A0 =C2=A0 =C2=A0 =C2=A0yt-dlp -F "https://yewtu.b= e/watch?v=3DzTAuEx9Otys"
>
> formats 233 and 234 look like audio-only available options, meaning > that they can be picked selectively:
>
>=C2=A0 =C2=A0 =C2=A0 =C2=A0yt-dlp -f 233 "https://yew= tu.be/watch?v=3DzTAuEx9Otys"
>
> In this case, this only downloads 25MB (mp4 file with AAC codec).
>
> Lorenzo
>
>
>> thanks,
>> Rob
>>
>> On Thu, Nov 6, 2025 at 7:49=E2=80=AFAM Tom Pusateri <pusateri@bangj.com> >> wrote:
>>
>>> I have discussed this in the past for use with the mobile apps= .
>>>
>>> I had asked for all the individual raw files be archived for a= udio
>>> and video but this request was rejected. The problem seemed to= be
>>> that the IETF didn=E2=80=99t want to provide the storage for t= his. So they
>>> generate a file to upload to YouTube and delete the originals.=
>>>
>>> I wanted to play around with different ways to present the aud= io
>>> and video through the mobile apps such that you could have jus= t
>>> audio and have it play in the background while driving or on a=
>>> walk. Or switch between video and high quality synchronized sl= ides.
>>>
>>> I also experimented with speech to text systems and speaker >>> identification algorithms. But without a reliable source of th= e
>>> audio files, I lost interest in the project.
>>>
>>> Tom
>>>
>>>=C2=A0 =C2=A0
>>>> On Nov 5, 2025, at 11:05=E2=80=AFPM, Rob Sayre <sayrer@gmail.com> wro= te:
>>>>
>>>> Oh, some of them do have .m3u but I am not sure how that w= orks.
>>>> Maybe
>>> just a few paragraphs of documentation, since the feature alre= ady
>>> seems to be there=C2=A0 (but only sometimes? idk). How do we g= et the
>>> headphones link there?
>>>> thanks,
>>>> Rob
>>>>
>>>> (not unaware that I am sending "how do I get the head= phones
>>>> button?" to
>>> an IETF list)
>>>>
>>>> <Screenshot 2025-11-05 at 8.02.10=E2=80=AFPM.png> >>>>
>>>>
>>>>
>>>> On Wed, Nov 5, 2025 at 2:50=E2=80=AFPM Eric Rescorla <<= a href=3D"mailto:ekr@rtfm.com" target=3D"_blank">ekr@rtfm.com> wrote= :
>>>>
>>>>
>>>> On Wed, Nov 5, 2025 at 2:46=E2=80=AFPM Watson Ladd
>>>> <watsonbladd@gmail.com>
>>> wrote:
>>>>
>>>> On Wed, Nov 5, 2025, 2:38=E2=80=AFPM Eric Rescorla <ekr@rtfm.com> wrote:<= br> >>>>
>>>>
>>>> On Wed, Nov 5, 2025 at 2:32=E2=80=AFPM Rob Sayre <sayrer@gmail.com> w= rote:
>>>>
>>>>
>>>> On 11/5/25 1:02 PM, Eric Rescorla wrote:
>>>>> Is there a straightforward way to just get the audio r= ecording
>>>>> for a given session?
>>>>>=C2=A0 =C2=A0
>>>> Hi,
>>>>
>>>> It's a fair question--sometimes they have had links fo= r that from
>>>> MeetEcho, but this time around it seems like there are no = mp3
>>>> files, only YouTube and Cloudflare video (which confusingl= y looks
>>>> like SoundCloud?).
>>>>
>>>>
>>>> These should be on BitTorrent, but in practice it doesn= 9;t matter.
>>>> YouTube works fine and the video overhead isn't too ba= d because
>>>> it's just slides that don't really change most of = the time over
>>>> each frame, and you need to show the "Note Well"= without wasting
>>>> everyone's time by reading it out.
>>>>
>>>> What I'm looking to do here is not to avoid the bandwi= dth
>>>> associated with the video but to be able to download the a= udio so
>>>> I can feed it into a speech to text model.
>>>>
>>>> The model can also give you the baroque (is there any othe= r kind)
>>>> of
>>> ffmpeg invocation to strip out just the audio.
>>>> Indeed it could, if the video were available for download = at some
>>>>=C2=A0 =C2=A0
>>> official URL.
>>>> -Ekr
>>>>
>>>>
>>>> -Ekr
>>>> -----------------------------------------------
>>>> Tools-discuss mailing list -- tools-discuss@ietf.org
>>>> To unsubscribe send an email to tools-discuss-leave@ietf.org >>>> https://mailarchive.ietf.org= /arch/browse/tools-discuss/
>>>> -----------------------------------------------
>>>> Tools-discuss mailing list -- tools-discuss@ietf.org
>>>> To unsubscribe send an email to tools-discuss-leave@ietf.org >>>> https://mailarchive.ietf.org= /arch/browse/tools-discuss/
>>>
>>>=C2=A0 =C2=A0
>
>

-----------------------------------------------
Tools-discuss mailing list -- tools-discuss@ietf.org
To unsubscribe send an email to tools-discuss-leave@ietf.org
https://mailarchive.ietf.org/arch/browse/tool= s-discuss/
--00000000000020af640642f0320e--