Re: [asterisk-users] Which sound file formats?
Asterisk will automatically chose the best format - per ATFOT Roderick A. Anderson wrote: I've got the text files created -- thanks to Russell Bryant -- for re-building the core and extra sounds using another voice but I'm not sure which formats to actually build. This will be a small/personal system using Vitelity.net so will only have SIP connections. The /var/lib/asterisk/sounds/ directory contains .alaw, .g722, .g729, .gsm, .ulaw, and .wav. What are the minimal formats I need or can get by with. Possibly even an ordered preference list. Thanks, Rod ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Which sound file formats?
Andreas van dem Helge wrote: Best is to keep native format files for all codecs you intend to use. Where are these rebuilt files with another voice? And any chance they'll ever be done by Pat Fleet or Ann, the Cisco voice? FWIW I'm in contact with someone who's been in contact with Pat who says she's willing to do it but we don't think its worth the effort unless these were distributed officially. I'm doing this for my own system. I picked Callie-8kHz, from Cepstral, and want all the core and extra sounds done in her voice. I'm not going to, nor do I think I can, distribute these. Rod -- On Mon, May 12, 2008 at 4:57 PM, Roderick A. Anderson [EMAIL PROTECTED] wrote: I've got the text files created -- thanks to Russell Bryant -- for re-building the core and extra sounds using another voice but I'm not sure which formats to actually build. This will be a small/personal system using Vitelity.net so will only have SIP connections. The /var/lib/asterisk/sounds/ directory contains .alaw, .g722, .g729, .gsm, .ulaw, and .wav. What are the minimal formats I need or can get by with. Possibly even an ordered preference list. Thanks, Rod -- ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Which sound file formats?
Al Baker wrote: Asterisk will automatically chose the best format - per ATFOT I guess I'm not getting my head wrapped around this concept. I understand the choosing but not how I might influence it. Probably best to just build them all and let Asterisk sort it out. I'll research this some more. Thanks Al. Rod -- Roderick A. Anderson wrote: I've got the text files created -- thanks to Russell Bryant -- for re-building the core and extra sounds using another voice but I'm not sure which formats to actually build. This will be a small/personal system using Vitelity.net so will only have SIP connections. The /var/lib/asterisk/sounds/ directory contains .alaw, .g722, .g729, .gsm, .ulaw, and .wav. What are the minimal formats I need or can get by with. Possibly even an ordered preference list. Thanks, Rod ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Which sound file formats?
Tilghman Lesher wrote: On Monday 12 May 2008 17:27, Roderick A. Anderson wrote: Al Baker wrote: Asterisk will automatically chose the best format - per ATFOT I guess I'm not getting my head wrapped around this concept. I understand the choosing but not how I might influence it. Probably best to just build them all and let Asterisk sort it out. I'll research this some more. If you want to produce just one, I'd recommend producing slin or wav, as they are essentially the same (slin is just wav without the header). The thing to note about this format is that as it is uncompressed, you will reduce the amount of work needed for transcoding (other than if you have native files), because transcoding from, for example, gsm to speex requires two transcoding operations: first, uncompress from gsm, and second, compress to speex. By adapting the most common intermediate format, you only need one transcoding operation per packet. Native files require no transcoding at all. Transcoding tends to be the most CPU intensive task on a typical Asterisk machine. Tilghman, Once again you come through clear. But just to make sure I transcode this correctly I can remove all the other formats and only have .wav and/or .slin files. Simple and clean. Plus swift can generate the .wav files optimized for VoIP. I can go sox-less. :-) Thanks, Rod -- ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Which sound file formats?
On Monday 12 May 2008 18:44, Roderick A. Anderson wrote: Tilghman Lesher wrote: On Monday 12 May 2008 17:27, Roderick A. Anderson wrote: Al Baker wrote: Asterisk will automatically chose the best format - per ATFOT I guess I'm not getting my head wrapped around this concept. I understand the choosing but not how I might influence it. Probably best to just build them all and let Asterisk sort it out. I'll research this some more. If you want to produce just one, I'd recommend producing slin or wav, as they are essentially the same (slin is just wav without the header). The thing to note about this format is that as it is uncompressed, you will reduce the amount of work needed for transcoding (other than if you have native files), because transcoding from, for example, gsm to speex requires two transcoding operations: first, uncompress from gsm, and second, compress to speex. By adapting the most common intermediate format, you only need one transcoding operation per packet. Native files require no transcoding at all. Transcoding tends to be the most CPU intensive task on a typical Asterisk machine. Tilghman, Once again you come through clear. But just to make sure I transcode this correctly I can remove all the other formats and only have .wav and/or .slin files. Correct. Just make sure that the wav files are 8000Hz, 16 bit signed linear samples, single channel (mono) only. Anything else will not give the desired results. Simple and clean. Plus swift can generate the .wav files optimized for VoIP. I can go sox-less. :-) If you have the 8kHz voices, the default swift output will be exactly what Asterisk requires. The 16kHz voices will need to be down-sampled, however. -- Tilghman ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
