similar to: question on downsampling

Displaying 20 results from an estimated 3000 matches similar to: "question on downsampling"

2004 Aug 06
4
vorbis bitrates - offtopic
Hi, I'm experimenting with IceCast2, using DarkIce to generate the stream. I have found some peculiarities with the vorbis bitrates. In DarkIce, I call vorbis_encode_init() with about the following values: vorbis_encode_init( &vorbisInfo, 2, 44100, 96, 96, 96); which by all reasons should generate a 96 kb/s stream, as all max_bitrate, nominal_bitrate and min_bitrate are set to 96.
2005 Dec 27
4
Best way downsample stream from 128 to 56 on the server?
Hi! We want to over our stream in better quality (128 or 256) - but we still have listeners using ISDN ... what's the best way to create a 56'er stream from the 128er send to the server? The downsampling has to run on the debian streaming server. Greetings from Germany Philipp
2004 Aug 06
5
icecast encoders?
On Fri, 16 Nov 2001, Jerome Alet wrote: > one thing that would be nice in DarkIce would be to allow the user to pass > specific reencoding options for each server, e.g. DarkIce could acquire > the audio in stereo and send it to a server in mono and in stereo to > another server, which is AFAICT impossible today. I agree! Also, something I've been looking for is a way to pull
2004 Aug 06
1
question on downsampling
Jack Moffitt wrote: > This isn't good enough. Just rip out lame's downsampling code (or > sox's) and use that (as long as your also under a compatible license). DarkIce is GPL, should be OK. > Those are both pretty good. Averaging every two samples just doesn't > cut it :) I thought so :( But I wouldn't need to rip out the code, if vorbis supported
2004 Aug 06
2
icecast encoders?
On Thu, 15 Nov 2001, E wrote: > - streaming at multiple bitrates (where the 128 bit stream is playing > the same thing as the 56 bit) DarkIce supports this feature --- >8 ---- List archives: http://www.xiph.org/archives/ icecast project homepage: http://www.icecast.org/ To unsubscribe from this list, send a message to 'icecast-request@xiph.org' containing only the word
2002 Jan 27
2
Downsampling
It is commonly said here that if I want to make AM radio-quality stuff at very low bitrates, a good way is to downsample. I downsampled a song to 11025Hz mono and encoded with -q 0, the result is about 18kbps and is at least radio quality. The downsampler I used is from Edinburgh speech tools, named ch_wave. `sox' performs terribly, so I didn't use it. However, I heard some unpleasant
2004 Aug 06
6
how to cut very big mp3s ?
Hi there, maybe someone here could help me solve my problem. I've streamed two complete days of a congress using DarkIce and IceCast, but now I want to cut the mp3 files in parts, a part per speaker. I've actually got four mp3 files, one for each morning and afternoon, but each is several hundreds megabytes long (128 Kbits/s stereo) Is there any tool available which would allow me to
2005 Jun 07
2
Downsampling
Ok, this is slightly offtopic, but relates to the quality of input for speex :) I'm working on echo cancellation by means of sampling the wave mix of the sound card as well as the microphone. I originally had two sound cards, which had some synchronization problems (now solved, more or less), but I have also discovered a much better solution using ASIO 2.0, which enables me to sample
2004 Aug 06
3
Audio Capturing
Gary Major wrote: > Does darkice or anything else allow you take the incoming audio from a > soundcard, but instead of encoding it and sending it to icecast, just encode > it and save it as a file instead? DarkIce not at the moment, though as of 0.8 you can save all what is sent to the server in a local file. <p>Akos <p><p>--- >8 ---- List archives:
2009 Jul 24
1
downsampling
Hi, I am looking for ways to donwsample one-dimensional vectors. For example, x=sample(1:5, 115, replace=TRUE) How do I downsample this vector to 100 entries? Are there any R functions or packages that provide such functionality. I did find the zoo package and the aggregate() function, but these appear to be rather specific for time-series. Thanks in advance, Jan
2004 Aug 06
2
Darkice memory leak
Unfortunately I can't reproduce your memory leak reports. For example, here is the line about my production darkice instance from top: PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND 27516 root 20 0 3564 3564 1340 S 95.6 1.3 47:06 darkice <p>this as after approx 50 minutes from start, but the memory load doesn't change for the whole 4 hours it
2004 Aug 06
3
Propping up liveice
I'm a volunteer who runs the mp3 streaming for KGNU-FM in Boulder, Colorado. We stream live at 64K with Linux, icecast 1.3.12+ minor patches, liveice, and lame 3.92. It easily supports 32 internet listeners 24x7 from a donated 400MHz Pentium II. Liveice is the only problem--it does its job of connecting the soundcard rec in to the lame encoder and to icecast, but dies without
2004 Aug 06
2
problems setting the sample rate with icecast2 and darkice
At present my stream is at 11.025 kHz and I want it to be at 44.1 kHz. Input is coming from line-in on my sound blaster card under linux (RH 9) using the sb driver. I presume that it is icecast that sets the sample rate on the dsp in the card, though when I change the settings in icecast.xml and darkice.cfg as show below the stream becomes choppy; or rather the sampling doesn't seem to
2004 Aug 06
2
Updating stream metadata...
Does anyone know what tool I can use to update the stream metadata (like artist, title, etc..) while I use an app like DarkIce? I would like to be able to update the stream info with the track I play. I know that XMMS and its liveice plugin do that, but I'd rather use DarkIce and capture all the sound from the card. Thanks, Tom __________________________________________________ Do You
2004 Aug 06
5
no luck with streamers
The same as wtih liveice, it stops while trying to open /dev/dsp according to strace. <p><p>On Sat, 20 Apr 2002, Maroy Akos wrote: > Raúl Gutiérrez Segalés wrote: > > > > Hi, > > > > I want to stream to an Icecast server (current version) that is up and running and I have tried plenty of streamers and no go.. > > > > Any advices? I want to
2004 Aug 06
3
metadata update in the stream
This has come up earlier, but I don't remember a solution. How do I update the metadata of the stream 'on the fly'? I'm thinking of having a live stream (through darkice), with the title, author, etc. metadata changed every once in a while to reflect the actual program. How would I do that? Should I insert such data into the mp3 / ogg voribs data somehow by calling some
2004 Aug 06
3
no luck with streamers
Did you try liveice? I'm using it without problems. I didn't try another one, but I can suggest you liveice. In my case I'm taking the output from an radio set which is connected to a sound card. I hope It help you. <p>Luis Gallardo Caracas - Venezuela. Raúl Gutiérrez Segalés wrote: > > Hi, > > I want to stream to an Icecast server (current version) that is up
2004 Aug 06
1
icecast encoders?
On Sat, Nov 17, 2001 at 06:57:46PM +0100, Maroy Akos wrote: > On Fri, 16 Nov 2001, Samuel Hathaway wrote: > > > I agree! Also, something I've been looking for is a way to pull sound from > > the dsp device at 44kHz and then downsample it to 22kHz for one of my two > > streams. Ideas? > > DarkIce does this already. What it doesn't do, is to have mono and
2002 Jan 10
2
-b flag at low sample rates?
As the subject implies, my question is: is it possible to use the -b (or -M) flag at non-44K sample rates? I'm working with an application that is trying to optimize for very small audio filesize. I found that downsampling to 11K and then using q0 gives high compression, but won't seem to drop below 64kbps or so. It seems like the combination of downsampling, then reducing to 30kps
2004 Aug 06
3
livestreams, anyone have good success ?
buggz wrote: > Oct 20 10:30:43 buggz1 kernel: Sound: Recording overrun > Oct 20 10:31:14 buggz1 last message repeated 345 times > Oct 20 10:32:11 buggz1 last message repeated 601 times > > Anyway to correct this ? yes, your system is too slow, and can not keep up with the sound card input. are you running darkice as root? what is the system load when you run darkice or liveice?