Re: [Alsa-user] Which 96kHz card ?
I started to experimenting with Software Defined Radio so I need some higher quality sound card. I could buy Creative SB Audigy SE which has 24bit stereo sampling @96kHz but it is not yet supported. Can somebody here recommend me some other 24b/96kHz card which is supported by ALSA and has at least good SNR ? My M-Audio Delta 44 is supported(ice1712) and fairly nice. 4 ins and 4 outs. Unfortunately all TRS connections. I've spent as much on cables, adapters, microphone/headphone preamps, and other things, as I did for the card. Certainly higher end than most of your typical SB cards. But relative to more studio grade cards, a little lacking. The sound to noise ratio is good. My laptop hooked up to my stereo system has noticeable static, very noticeable. The Delta to the stereo only has a little noise, if you crank it and put your ear in contact with the speaker grill. I'm drooling a little over an Echo Layla 3G, but I have no idea of it's alsa/linux support level. In the meantime my mobility and battery life needs has me using a Korg MR-1000. A stand alone stereo recorder that doubles as a usb-storage device. Super Duper nice, and the converters on it(DSD), shows that the Delta isn't top of the line, but still very good. Unfortunately there's no known way to deal with DSD files in Linux. At least not known to me. Not that I've tried running audiogate in wine yet. HTH - James - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Which 96kHz card ?
Vaclav Peroutka wrote: I have the MAudio Revolution 5.1 and the sound quality is excellent. Hello, I just bought the M-Audio Revolution 5.1 card today :-) I will play with it hopefully during weekend. Hope it works for you. I feel responsible now. :-) As I am going to experiment with SDR, I somehow need to write full Not sure what SDR is. duplex application. My idea is to use either multi-threaded app (main thread and then one for recording and one for playback of processed data). Or callbacks. Similarly as I used it in AUDMES ( These would be my choices also. http://audmes.sf.net/ ).Honestly this is my second target - to finish Because of the move from California to Chicago, the sourceforge websites are down until next week, so I couldn't look at the link. AUDMES to be running on Linux. Can somebody skilled recommend me what is the preferred way to write a full-duplex audio application for ALSA? Or some short source code will be helpfull as well. I haven't done this so I have no direct experience or recommendation. This is a link from the alsa-project web site for simple duplex program. http://equalarea.com/paul/alsa-audio.html#duplexex His final recommendation is to use jack. ;-) You could look at audacity as it does full duplex. C++, big complex program, through portaudio v19. Check on sourceforge for a program that does what you want, use the code as a template. I saw on the alsa-devel list a recommendation by a couple of the alsa developers that the best way to do this was through the use of poll/select. You could web search as well, as there are probably how-tos for this. If you get no response here, you could ask on alsa-devel. They might or might not respond as their main focus is development of alsa itself. Thank you in advance, Vaclav - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] Which 96kHz card ?
Hello all, I started to experimenting with Software Defined Radio so I need some higher quality sound card. I could buy Creative SB Audigy SE which has 24bit stereo sampling @96kHz but it is not yet supported. Can somebody here recommend me some other 24b/96kHz card which is supported by ALSA and has at least good SNR ? Thank you in advance, Vaclav - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Which 96kHz card ?
Vaclav Peroutka wrote: Hello all, I started to experimenting with Software Defined Radio so I need some higher quality sound card. I could buy Creative SB Audigy SE which has 24bit stereo sampling @96kHz but it is not yet supported. Can somebody here recommend me some other 24b/96kHz card which is supported by ALSA and has at least good SNR ? Thank you in advance, Vaclav Certainly not an exhaustive list, and I don't have experience with most of these, but I believe the m-audio 2496 is supported by alsa and otherwise meets your needs. I think the Juli@ is also supported, and I've certainly heard extremely positive reviews of it from a quality standpoint. Personally I have an Echo Indigo IO, but that's a notebook card so probably not what you want. Look through the matrix on the wiki to see if X card is supported. Also, I would avoid creative. Their reputation for quality is not very good (or extremely poor, if you listen to some people, but if you do that then most things suck according to someone), and some/many/all of the audigy range resample everything to 48kHz *I've heard*. I was never entirely clear if it was 48kHz or a multiple of 48kHz. Obviously quite an important distinction here. I hope there was something useful in there somewhere! Cheers, -ol - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Which 96kHz card ?
Vaclav Peroutka wrote: Hello all, I started to experimenting with Software Defined Radio so I need some higher quality sound card. I could buy Creative SB Audigy SE which has 24bit stereo sampling @96kHz but it is not yet supported. Can somebody here recommend me some other 24b/96kHz card which is supported by ALSA and has at least good SNR ? Thank you in advance, Vaclav I have the MAudio Revolution 5.1 and the sound quality is excellent. There is a review somewhere on the web comparing it to the top end Creative card and it compares favorably. The 7.1 is OK, but apparently the 5.1 got extra special ADC/DAC chips and it is audible. I hear the difference compared to other sound cards I have had (note that these haven't been professional quality like the 2496 or 1010 or the RME cards). I have used it at 192KHz without issues, and the internal processing is signed 32 bit so it should handle 24 bit without quality loss. For the price, I have been very pleased with this card. But I am not a professional musician and don't use it in a recording studio setting. - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
