Hi Brandon,
On 19/03/21 14:51, Brandon Hale wrote:
> Hey Lorenzo,
>
> As far as the Jamulus stuff, you can totally run a private server on
> your main machine. The person connecting would just enter your ip and
> port number the server is on and can connect to you directly. You have
> to run the server from the shell to customize the options, but you can
> use this command to do it:
Thanks for the hint. Will this work also with a dynamic IP and no port
forwarding set-up? I can tinker with that, I guess, but probably most
users wouldn't.
Ciao,
Lorenzo.
>
> Jamulus -s -n -o "*Server-Name*;*Location-name*;*area-code**(see documentation about this)*" -w"*Server name*"
>
> Just fill out the text that is in bold and you can run a private server.
>
> Brandon Hale
>
> On 3/19/21 8:53 AM, Lorenzo Sutton wrote:
>> On 16/03/21 09:14, Lorenzo Sutton wrote:
>>> Dear all,
>>>
>>> Thank you so much for all the interesting insight and suggestions :-)
>>> Sorry if I can't answer individually for now, but I did real all the
>>> emails, greatly appreciated. This mailing list rocks as usual ;-)
>>>
>>> I'll try and test some of the proposed solutions trying to factor in
>>> all of the elements and the fact that I need to try and not to
>>> overcomplicate things for my teacher who - I imagine - is having to
>>> set-up all of the lessons, re-schedule etc. (I'm the student
>>> here...). I'll report back after my first remote lesson ;)
>>
>> For anyone interested, it is a bit long, but hopefully interesting /
>> useful for other :)
>>
>> For our first lesson yesterday we used Zoom for the sake of simplicity
>> (especially for my teacher and to facilitate their schedule). Audio
>> quality was decent on both ends), playing together was out of question
>> (but expected with any similar platform due to latency). My teacher
>> did point out that 'original audio' feature could improve audio
>> quality even more... Unfortunately, as said, it doesn't seem to be
>> available on Linux... Which is weird as you'd think that all of the
>> funky 'noise reduction' / 'echo cancellation' stuff should be
>> 'additions' and easy to 'turn off', not the reverse... I tried
>> contacting Zoom but I assume they will never answer.
>>
>> In the meantime I did some tests (alone, using two laptops, see some
>> specs at the end) with:
>>
>> - Discord [1]: sound quality was pretty good, especially after
>> removing all of the noise reduction, and 'auto' features and lowering
>> to the minimum 'voice activation' - and it does use Opus. It was not
>> stereo (which for bass is ok, but would be nice to have e.g. if
>> playing a backing track etc.). The nice thing was that video is
>> included. I think that in order to have more fine-grained control over
>> audio you need to download the client (so not using the web one),
>> which does exist for Linux. Both parties need to have a registered
>> account to use this, which might be a bit of a hassle for the other
>> party who have to a) register and create yet another account b)
>> install yet another application. Also log-in seems to require captcha
>> and device verification (I guess due to abuse); but this makes the
>> sign-up process and first star quite cumbersome. Audio is pulseaudio
>> of course, which means pulseaudio sink for jack. A 'mobile App' exists.
>>
>> - Jami [2]: This is a P2P calling system and uses Opus. A bonus is
>> that it supports Jack directly. It worked ok and included video, but I
>> did notice a few dropouts and high CPU usage, and one end did crash at
>> an instance. All in all, it didn't seem the quality was much higher
>> than Discord. Also mono-only. But I think that's expected as this is
>> probably and evolution of SIP 'softphone0' clients (e.g. like Egika?).
>> Account creation is easy as you really just enter a name and username
>> (no central email registration etc. needed). It does require both
>> parties having an installed client. Again this last point might prove
>> a bit of an additional hassle. A 'mobile App' exists.
>>
>> - Cleanfeed [3]: audio-only, web-only, freemium. Primarily aimed at
>> online broadcasting / podcasting / news. Considering that this works
>> out of the browser (Chrom* ones (including -ium) only officially
>> supported but they try to make it work also on Firefox), I was quite
>> impressed by the audio quality of the 'Music' setting available with
>> the free account (they offer even higher bitrates with the paid ones.
>> As a bonus 'music' is in stereo. I contacted support with a couple of
>> questions and they were very friendly and helpful and seem also quite
>> knowledgeable about Linux. The interesting feature here is that you
>> just provide a link to the other party who join through a browser.
>> This being browser-based also means you need pulseaudio and the sink
>> if using jack (like in all my tests). No video means setting up some
>> other (muted) video service for that. The browser-only link thing
>> could make this relatively easy to propose by just sending the link to
>> my teacher once we start the zoom call and having them use it for
>> audio and mute their zoom, we shall see. They are also quite
>> straightforward in saying that this is not primarily intended for
>> online 'jamming'.
>>
>> - Jamulus [4]: audio-only, realtime online jamming-oriented with
>> public 'servers', jack-native. This was actually real fun to test and
>> play with. I tried some close-by servers and jammed a bit in the
>> central one. With 128 frames set in JACK and using Jamulus' own direct
>> monitoring latency was definitely acceptable and the audio quality
>> pretty good. Audio-quality and music-friendliness wise this is
>> probably the nicest to use. Only thing for a teaching setting is the
>> public-only servers (the documentation mentions 'private' ones, but I
>> haven't looked into if this is possible without actually 'hosting' a
>> server), there is a workaround via soloing or muting others, but I
>> don't think most teachers (nor students) would feel comfortable with
>> anyone possibly coming in and listening to the lesson. Also video
>> should be provided via some other tool and, of course, all parties
>> need to have the software installed.
>> That said this software is really well made and fun to use.
>> (aside note there were a couple of 'troll' events in one of the public
>> servers, and although they say don't feed the trolls 'audio trolling'
>> can hurt your ears... Not sure how this could be solved, maybe some
>> 'reputation' system like on Stack overflow or similar.. but that does
>> have its flaws.. and it's another topic :-)
>>
>> In all tests my set-up was the following:
>>
>> Hardware:
>> - Bass -> cheap Bass DI [balanced out] -> ZOOM H5 in | [H5 also
>> providing microphone input via the included X/Y mics (so in 4-track mode]
>>
>> In all cases the Laptop I hooked the ZOOM H5 to was connected via
>> network cable to the router. I'm also using (since about 1 week) an
>> FTTH connection. With the exception of Jamulus, I also tried
>> connecting the other test laptop via thetering 4G just to test what
>> the other user would potentially hear, and the results were always
>> pretty good (I did not however test the reverse).
>>
>> Software:
>> - Jack
>> - Zoom H5 shows 4 inputs in jack: the L/R mics and the inputs 1 and 2
>> - Where Jack was natively supported mic1+2 and input 3 were sent to
>> the application
>> - Where Jack was not supported I added the pulseaudio sink (I always
>> start that manually via a script I have since ages), with similar
>> routing.
>> - All of the software (with the exception of Cleanfeed which is
>> web-based), I was able to find packaged for Manjaro either in the
>> official repositories or in AUR.
>>
>> Things I'd like to try but din't have the chance to, yet:
>> - SonoBus [5]
>> - SoundJack [6]
>> - JackTrip [7]
>>
>> [1]: https://discord.com/
>> [2]: https://jami.net/
>> [3]: https://cleanfeed.net/
>> [4]: https://jamulus.io/
>> [5]: https://sonobus.net/
>> [6]: https://www.soundjack.eu/
>> [7]: https://ccrma.stanford.edu/groups/soundwire/software/jacktrip/
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Received on Sat Mar 20 04:15:02 2021
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