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#51
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"Dave Hall" wrote in message
... You can probably get away with low sampling rates if you bandwidth limit the hi frequency end to cut off at 4 Khz, and that way you can use 8khz as the sampling rate (Niequest theorem 2x audio rate). 16bps is also satisfactory as a bit rate with these low fidelity audio chips. That's what I do with my voice grade recordings. It reduces file size (and streaming bandwidth) considerably. Dave "Sandbagger" Hi Dave! I tried going to 8KHz and went down to about 6Kbps using the ACELP codec from VoiceAge Corp. It produced that under water quality. When streaming 11 meters, I already have the poor quality of the band to contend with. Adding my own noise was just horrid. Do you have any suggestions on better codecs to use for this? I'd like to get just above adding that noise but not so high that only 5 listeners would choke it up. I have not tried 16bps. When my friend Bill gets back into town, I'll give it a shot. I live in an apartment building so I can't set up an antenna here. I have to live vicariously via his Antron. (****... that sounds gay) Thanks. -Dr.X |
#54
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On Thu, 11 Nov 2004 23:25:41 -0500, "Dr.X" wrote:
"Dave Hall" wrote in message .. . You can probably get away with low sampling rates if you bandwidth limit the hi frequency end to cut off at 4 Khz, and that way you can use 8khz as the sampling rate (Niequest theorem 2x audio rate). 16bps is also satisfactory as a bit rate with these low fidelity audio chips. That's what I do with my voice grade recordings. It reduces file size (and streaming bandwidth) considerably. Dave "Sandbagger" Hi Dave! I tried going to 8KHz and went down to about 6Kbps using the ACELP codec from VoiceAge Corp. It produced that under water quality. When streaming 11 meters, I already have the poor quality of the band to contend with. Adding my own noise was just horrid. Do you have any suggestions on better codecs to use for this? I'd like to get just above adding that noise but not so high that only 5 listeners would choke it up. I have not tried 16bps. When my friend Bill gets back into town, I'll give it a shot. I live in an apartment building so I can't set up an antenna here. I have to live vicariously via his Antron. (****... that sounds gay) I agree that 8Kbps is a bit "muddy" sounding. 16 Kbps is usually better and considering the typically poor fidelity on the CB Band, you really can't tell much of a difference. I use LAME codecs exclusively to make MP3 files from WAV's and it seems to work ok for my use. The bottom line is bandwidth and I/O speed. Once you hit those limits, there's no more to be had. Have you looked into the WMA format? Supposedly it offers some streming advantages, although I haven't tried them myself yet. Dave "Sandbagger" Thanks. -Dr.X |
#55
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"Dave Hall" wrote in message
... .... I agree that 8Kbps is a bit "muddy" sounding. 16 Kbps is usually better and considering the typically poor fidelity on the CB Band, you really can't tell much of a difference. I use LAME codecs exclusively to make MP3 files from WAV's and it seems to work ok for my use. Yeah, I use lame to make MP3's too. I think it's great. The bottom line is bandwidth and I/O speed. Once you hit those limits, there's no more to be had. Have you looked into the WMA format? Supposedly it offers some streming advantages, although I haven't tried them myself yet. Dave "Sandbagger" For the last few tests we have been using WME with WMA codecs. It works really well. There are several advantages to it but a few disadvantages as well. I'm going to post the instructions and see what others come up with. Thanks, -Dr.X |
#56
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"Chad Wahls" wrote in message
... I've only seen 1 hard drive failure and there are clones that auto switch. Look around, we just sold 4 studio's worth of Scott Studio gear that was only 4 years old. Pennies on the dollar! High end analog consoles are coming around too, we are losing both of our only wheatstones very soon, What are you gonna want for them? Not saying I'm in the market for one but it's nice to know if it gets brought up. I'm sure you won't have them for long if they're selling for cheap. going to digital. Proprietary replacement parts are hart to find as I beleive they no longer support them, be easy on the faders and you should be fine. Try telling that to the monkeys operating them. :-| I've gotten mixers back that were in service for maybe a week that had more cafeen in them than the Mr. Coffee pot in the break room. All electronic parts such as op-amps, etc. are still in production and quite common. I'll stick with whizzing drives, they are cheap, reliable, and seem to make the most sense to me. But I like my digital consoles ![]() and we travel all over the US building studios, I'm in St. Petersburg, Fl. accross the bay from Tampa. (wfla territory) we may have to meet up for tours, lunch, drinks, and strippers! That would be fun but dude, I'm a part-timer, not Bubba the Love Spunge. lol :-) Chad -Dr.X |
#57
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![]() "Dr.X" wrote in message ... "Chad Wahls" wrote in message ... I've only seen 1 hard drive failure and there are clones that auto switch. Look around, we just sold 4 studio's worth of Scott Studio gear that was only 4 years old. Pennies on the dollar! High end analog consoles are coming around too, we are losing both of our only wheatstones very soon, What are you gonna want for them? Not saying I'm in the market for one but it's nice to know if it gets brought up. I'm sure you won't have them for long if they're selling for cheap. Don't know yet, but I'll let you know. going to digital. Proprietary replacement parts are hart to find as I beleive they no longer support them, be easy on the faders and you should be fine. Try telling that to the monkeys operating them. :-| I've gotten mixers back that were in service for maybe a week that had more cafeen in them than the Mr. Coffee pot in the break room. The first week in the new rooms I walked into a studio to find one of our female DJ's with the wrapper of a toasted sub sandwich spread across the console and she was a chowin down. On the meter bridge...... her drink. I became explosively convincing that there was to be no food or drink, except water, in the studios. Until she was fired ![]() All electronic parts such as op-amps, etc. are still in production and quite common. I'll stick with whizzing drives, they are cheap, reliable, and seem to make the most sense to me. But I like my digital consoles ![]() and we travel all over the US building studios, I'm in St. Petersburg, Fl. accross the bay from Tampa. (wfla territory) we may have to meet up for tours, lunch, drinks, and strippers! That would be fun but dude, I'm a part-timer, not Bubba the Love Spunge. lol :-) I'll keep it in mind, I have an old live sound buddy down there working and we need to get down to see him. Chad |
#58
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Dr. X, you going to be transmitting tonight?
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#59
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Mopar,,,,check with X tonight,,,if he will be transmitting, I'll wave a
hand at ya' this evening....(no politics : ).....might even toss in some echo and a beep or two for the fans. |
#60
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