Tech: Recording Streaming

Subject: RE: Tech: Recording Streaming
From: Bonzo3legs
Date: 22 Apr 22 - 05:37 PM

Using ffmpeg, the following command will capture live BBC2 HD but only at 720p

ffmpeg -i https://vs-hls-push-uk-live.akamaized.net/x=3/i=urn:bbc:pips:service:bbc_two_hd/t=3840/v=pv14/b=5070016/main.m3u8 -c copy test.ts

Presumably the 5070016 means something, but is there a list of such codes used by the BBC?

Subject: RE: Tech: Recording Streaming
From: DaveRo
Date: 22 Apr 22 - 02:03 PM

Stanron wrote: In a Linux operating System ffmpeg is a 'terminal command'. Is that a 'console command' in Windows?

Yes. You can install ffmpeg in Windows, it's just the same. (Or if you're used to Linux you can run it under WSL.)

Is it easier than using Audacity? Only for a very few values of 'easier'. I might use it if I wanted to record unattended - a timed (cron) job. Or if I wanted to avoid or minimise re-encoding, with consequent loss of quality.

But for most uses and most users, especially under Windows, Audacity (or some other GUI program) is easier IMO.

Subject: RE: Tech: Recording Streaming
From: Stanron
Date: 22 Apr 22 - 12:57 PM

In a Linux operating System ffmpeg is a 'terminal command'. Is that a 'console command' in Windows? It's old school computer methodology. No Graphic User Interface like Windows, or mouse clicking on buttons or clicking on links.

You type the command into the terminal and press 'enter'. Frightening stuff if you are not used to it. Plus there will be a whole load of letter options to follow the command and these all have to be letter and case correct for it to work.

On my system I did it through a GUI years ago. It was dead simple but I've now forgotten how I did it.

Tomorrow I'm going to put a new SSD in my PC and install the latest version of Linux Mint Cinnamon. There will be a lot of setting up and file transferring once it's done and setting up Audacity will be one of those tweaks. I'll be re-reading this thread then.

Subject: RE: Tech: Recording Streaming
From: Bonzo3legs
Date: 22 Apr 22 - 12:21 PM

https://mediarealm.com.au/articles/internet-stream-recorder-ffmpeg/

There are many pages on the web which can explain it better than myself.

Subject: RE: Tech: Recording Streaming
From: Harry Rivers
Date: 22 Apr 22 - 12:02 PM

Bonzo, and how would one go about that?

Harry

Subject: RE: Tech: Recording Streaming
From: Bonzo3legs
Date: 22 Apr 22 - 10:25 AM

Surely it's far easier to capture webstreams, both audio and video, using ffmpeg.

Subject: RE: Tech: Recording Streaming
From: Newport Boy
Date: 22 Apr 22 - 07:24 AM

The quality of the recording depends on the Digital to Analogue & Analogue to Digital converters on the machine you used. The sound is converted twice to get your WAV file.

Subject: RE: Tech: Recording Streaming
From: Harry Rivers
Date: 22 Apr 22 - 06:55 AM

Using the various bits of advice above, I think I have it working with the following settings in Audacity:

Audio Host = MME
Recording Device = Microsoft Sound Mapper - Input
Recording Channels = 2(stereo)
Playback Device = Speaker (Realtek(R) Audio)

I also had to go into Hardward/Sound options in Control Panel and disable the laptops's internal microphone.

It certainly records what's streaming but I haven't checked the overall quality; I'll do that when I get home and feed the WAV file through a decent setup.

Many thanks
Harry

Subject: RE: Tech: Recording Streaming
From: Jon Freeman
Date: 22 Apr 22 - 04:46 AM

But from doing it on Linux I can tell you that it will probably not be simple and intuitive and there may be some jargon and non-obvious settings involved.

Drifting but I don’t think sound on Linux is straightforward. There is ALSA, PulseAudio, Jack and GStreamer for a few components that may be involved and there are many possible setups (on which I'm easily confused).

My desktop set up is complicated by me using Rosegarden and Jack for MIDI via external (one keyboard and one module) devices. I’ve found Cadence (which will set things up in the background on log in – I don’t need to use the interface each time) provides me with the simplest way of having Jack and PulseAudio working together nicely. Perhaps PipeWire would also work but I’ve yet to try it.

(For MIDI playback on other Linux things, I use Audacious which just needs a soundfont [I use Merlin Gold) provided which is simpler than trying to set up a software synth like timidity or fluidsynth)

Getting back a bit more on topic. On my Desktop, just leaving Audacity’s devices as “system” will work for me. That will use the current system defaults (in my case, that’s nearly always a Yamaha mixer) but I could try to be more specific. With my set up and the mixer, playback and recording are called “PulseAudio Jack source” and “PulseAudio Jack sink”

Subject: RE: Tech: Recording Streaming
From: cnd
Date: 21 Apr 22 - 05:42 PM

Make sure your input is set to speakers, and make sure playback is turned off -- I believe it's in edit, preferences, and then de-select playback (can't remember what the other option is)

Subject: RE: Tech: Recording Streaming
From: GUEST
Date: 21 Apr 22 - 03:31 PM

To record streaming audio, set the Recording Device to [your speakers] Loopback

https://manual.audacityteam.org/man/tutorial_recording_computer_playback_on_windows.html#wasapi

Subject: RE: Tech: Recording Streaming
From: DaveRo
Date: 21 Apr 22 - 12:16 PM

I have certainly used Audacity to record internet radio streams while playing them on speakers at the same time - but not using Windows. But from doing it on Linux I can tell you that it will probably not be simple and intuitive and there may be some jargon and non-obvious settings involved. So don't despair if you can't get it to work straight away.

Subject: RE: Tech: Recording Streaming
From: Joe Offer
Date: 21 Apr 22 - 04:28 AM

Oh, Dave, you're my hero!

(Gotta check this out first, but you've saved me many times in the past)

-Joe-

Subject: RE: Tech: Recording Streaming
From: DaveRo
Date: 21 Apr 22 - 04:24 AM

Audacity Tutorial - Recording audio playing on the computer

Subject: RE: Tech: Recording Streaming
From: Joe Offer
Date: 21 Apr 22 - 04:06 AM

I'll be following this. I think Audacity is the answer, but things keep changing. Sometimes, Audacity will record anything I can hear with my computer, and sometimes not. I'm in the "not" stage with Windows 11 right now, and I'm desperate for a solution. I need sure-fire methods to ensure Audacity will record whatever I'm playing on my computer.

-Joe-

Subject: Tech: Recording Streaming
From: Harry Rivers
Date: 21 Apr 22 - 03:40 AM

I have just bought a new laptop and on this machine microphone and headphones share one jack socket.

Previously, I would just connect headphones to mic with a jack lead and record streaming audio with Audacity, monitoring with a splitter.

Any ideas how I can record streaming?

Is there a reasonably priced software solution whereby it can be done internally without jacks?

The laptop has USB and HDMI, can either of these be used for audio input/output?

Harry