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All Forums  Cool Edit  how to record In 24 / 96 with cool edit pro 2

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samoloko Posts: 2	Posted - Sat Mar 01, 2003 7:26 am  Hi Would you please explain me what to set In cool edit pro 2 In order to rec from Terra Tec 24/96 fire to 24 bit / 96 Khz The Only I get Is 16 bit or 32 float when I go to new waveform Also do you know how to burn cd with 24/96 spec In order to play It with stand alone dvd
1wingman Posts: 47	Posted - Sat Mar 01, 2003 7:57 am  First, make sure CEP is using your card. You can do this by setting the default device windows uses for sound (Control Panel/Sounds and Audio Devices) or by setting it directly in CEP (Options/Device Properties). Make sure 4-byte IEEE float is selected under both the wave in/wave out tabs. If you need help with this check with the tutorials on this site. When making a new file, choose the sample rate you want and select 32-bit(float) under resolution. This is the best way to record your sound. The remaining 8 bits are packed with zeros.
SteveG Location: United Kingdom Posts: 6695	Posted - Sat Mar 01, 2003 8:56 am  1wingman wrote: First, make sure CEP is using your card. You can do this by setting the default device windows uses for sound (Control Panel/Sounds and Audio Devices) or by setting it directly in CEP (Options/Device Properties). Make sure 4-byte IEEE float is selected under both the wave in/wave out tabs. If you need help with this check with the tutorials on this site. When making a new file, choose the sample rate you want and select 32-bit(float) under resolution. This is the best way to record your sound. The remaining 8 bits are packed with zeros. See the answer to the other thread (why do we need two?). Oh, and the remaining 8 bits are 7 scaling bits and 1 sign bit. The moment you do anything at all to the resultant file, they won't be packed with zeros! _________________
1wingman Posts: 47	Posted - Sat Mar 01, 2003 7:21 pm  I guess because I was too lazy to find the specific link to point him to it.:clown: I'm wondering exactly what I was reading about when the other 8 bits were said to be zero filled. Actually, I just remembered. It was in the manual for my soundcard. It was describing how the data was passed onto the PCI bus from the soundcard.
Thorne Posts: 41	Posted - Sun Mar 02, 2003 12:02 am  Hmm. My Wave In/Out is set to 3-byte Packed PCM and I can't remember why. Is there an advantage to using 4-Byte IEEE Float? Thanks.
MusicConductor Location: USA Posts: 1524	Posted - Sun Mar 02, 2003 12:34 am  Yep -- please see my little comment in the other thread as well. Thank you very much. Later.
Thorne Posts: 41	Posted - Sun Mar 02, 2003 12:53 am  I'm sorry.. "other thread"? What is the subject? I found another identically-named subject as this thread, but nothing about 4-byte IEEE in its 2 posts. Thanks for a more specific pointer.
MusicConductor Location: USA Posts: 1524	Posted - Sun Mar 02, 2003 9:07 am  Thorne wrote: I found another identically-named subject as this thread, but nothing about 4-byte IEEE in its 2 posts. That's the right one, and I'm sorry to have ignored your question while looking at the DVD audio matter. I'm not sure if there is any advantage. 4-byte IEEE is what CEP defaults to, right? But unless your card can use the scaling information (translate: play back a level above "0"), I'm not sure it will sound any different. Perhaps there's another advantage that one of our PC experts can suggest.
SteveG Location: United Kingdom Posts: 6695	Posted - Sun Mar 02, 2003 9:58 am  MusicConductor wrote: Thorne wrote: I found another identically-named subject as this thread, but nothing about 4-byte IEEE in its 2 posts. That's the right one, and I'm sorry to have ignored your question while looking at the DVD audio matter. I'm not sure if there is any advantage. 4-byte IEEE is what CEP defaults to, right? But unless your card can use the scaling information (translate: play back a level above "0"), I'm not sure it will sound any different. Perhaps there's another advantage that one of our PC experts can suggest. I don't know about PC expert... but assuming that we're talking about a Terratec DMX 6fire 2496 (hard to say from the first post, but I think so), then you run into a problem with this card if you try to use anything except 4-byte IEEE float, as a few people discovered 'Terratec DMX 6 Fire - can't record in EV'. Even if it isn't a 6fire, but another Terratec card, then the same advice probably applies, anyway. _________________
Thorne Posts: 41	Posted - Sun Mar 02, 2003 12:01 pm  Steve and MusicConductor... I have a Hoontech DSP24 Value card and tried recording and playback at both 3-byte and 4-byte settings. Both seem to work fine with no significant sonic differences.
SteveG Location: United Kingdom Posts: 6695	Posted - Sun Mar 02, 2003 12:33 pm  Thorne wrote: Steve and MusicConductor... I have a Hoontech DSP24 Value card and tried recording and playback at both 3-byte and 4-byte settings. Both seem to work fine with no significant sonic differences. So does my Mia. This seems to be a Terratec idiosyncracy, not anybody else's. But let's make this quite clear - the difference is that the 3-byte data frames are 24-bit integer, straight out of the soundcard. The 4-byte data frames are also 24-bit integer, straight out of the soundcard. But the 4th byte, as 1wingman says, is actually a string of zeros, because it isn't the card that's doing the scaling. All that's happening is that the card is providing a series of 3 bytes with no string of zeros, or 4 bytes with a string of zeros. CEP can cope quite well with either, so it's not a problem. The conversion into 32-bit floating point makes a difference within CEP, but ultimately what comes out from, and back into, the soundcard has to be in an integer format, otherwise the codec couldn't work, because it isn't a scaling device. So really, being 3 or 4 byte data doesn't make one scrap of difference to the signal. Which means that I'd go further than saying 'no significant sonic differences' and simply leave out the words I italicised - because that's the way it is. _________________
1wingman Posts: 47	Posted - Sun Mar 02, 2003 1:38 pm  I have the Terratec EWX 24/96 and I can't record in 4-byte PCM for some reason. It has to be 4-byte IEEE float. I do think it'll playback in 4-byte PCM though. I don't think you'd ever want to select 3-byte packed PCM unless your card requires it because it takes some extra clock cycles to unpack the data. I'm guessing though that if 32 bit files are saved as 32-bit floats type 3 (default setting) you might as well select 4-byte IEEE float for your recording device. From CE's description, it's the device driver that does the conversion to 32-bit float. Oh, I just saw the second thread Steve, that's what you were talking about...
SteveG Location: United Kingdom Posts: 6695	Posted - Sun Mar 02, 2003 5:18 pm  1wingman wrote: I'm guessing though that if 32 bit files are saved as 32-bit floats type 3 (default setting) you might as well select 4-byte IEEE float for your recording device. From CE's description, it's the device driver that does the conversion to 32-bit float. Yes, this seems to be about the strength of it. I should actually have said that it was the card software driver, rather than CEP that does the conversion to FP - not that CEP isn't quite capable of doing this, because it is. And on this basis, it would be quite possible for Terratec to rewrite the driver to support the other possible formats. But since most audio apps are tending to use the 4-byte IEEE float rather than the PCM format, which I believe is an integer one, there doesn't seem to be much point as far as they're concerned, I suspect. _________________
outerspacelord Posts: 31	Posted - Mon Mar 03, 2003 6:42 pm  I posted this at forum.rightmark.org ... Here is some info that may be of interest. I have a Terratec EWX 24/96 tested with WDM Driver v5.0.2000 Build 126 in both Win98 SE and XP SP1. This card use the same drivers as Terratec DMX Fire 24/96, so read on ... First in XP I set driver in Cool Edit to 4-byte IEEE float and did a stereo 32-bit (float) 96kHz recording (with nothing connected to the input). Then I ran the Analyze\Statistics function in Cool Edit(before saving the file), and the interesting thing i now see is that actuall bit depth is 16 bit. That is bad ... Ok so then i try the same again changing 'Get 32-bit audio using: to 4-byte PCM' in device properties of Cool Edit. Now the actuall bit depth says float in Analyze\Statistics. Very good ... or ? It shows that when I connect a signal to the input and record it, nothing get recorded. So this does not work at all in XP. Now I set get 32-bit to 3-byte Packed PCM in Cool Edit and record again. Now the actuall bit depth says 24 bit. So this is the working mode ;) So now to the difference between XP and Win98 SE. First 4-byte IEEE float record some strange noize. Means noneworking ... Then 4-byte PCM behaves just like 3-byte Packed PCM in Win98 reporting actuall bit depth to 24 bit. So it seems like 4-byte PCM and 3-byte Packed PCM are both are working in Win98 ? Here is some questions i would like to have answered. Audio Options in SONAR shows 4 bytes left-justified in Driver Profiles. What does this mean compared to all other modes discussed earlier? In RMAA 4.3 when I Test supported modes (Stereo) all shows D - full duplex mode (without 192 kHz). Is this good or bad? What does it mean? The test in Cool Edit shows that record should be set to 3-byte Packed PCM to actually work and to be able to record 24 bit. Both EWX 24/96 and Terratec DMX Fire 24/96 says: Bus master transfer supports '24bit 4byte mode' (32bit) at http://www.terratec.com/products/ewx2496/ewx2496_details.htm Is this the 4-byte PCM in Cool Edit and RMAA 4.3? Because if it is, it is not working at all recording in XP. I can't find this very consistent and is hard to get. 3-bytes this, 32 bit PCM and 4-bytes that
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