davmar Posted September 20, 2003 Share Posted September 20, 2003 you have pm Quote Link to comment Share on other sites More sharing options...
m00n Posted September 20, 2003 Share Posted September 20, 2003 Who has a PM? I checked mine and I don't. Quote Link to comment Share on other sites More sharing options...
m00n Posted September 20, 2003 Share Posted September 20, 2003 Another question I have... Are there predefined test points? Meaning, if I wanted to test lows to highs, is there a set of standards that is used in the industry? Quote Link to comment Share on other sites More sharing options...
formica Posted September 21, 2003 Share Posted September 21, 2003 Actually there are standard tones used for testing based on the octave scale... such as at each octave, 1/3 octave, 1/6 octave, etc... If you download my test tones above, I've posted them in 1/6 Octave form... which are the following frequencies: 10 11.2 12.5 14 16 18 20 22.4 25 28 31.5 35.5 40 45 50 56 63 71 80 90 100 112 125 140 160 180 200 224 250 280 315 355 400 450 500 560 630 710 800 900 1000 1120 1250 1400 1600 1800 2000 2240 2500 2800 3150 3550 4000 4500 5000 5600 6300 7100 8000 9000 10000 11200 12500 14000 16000 18000 20000 If you have a CD burner... just burn an audio disk yourself... if you don't want to go through 1/6 octave... use every second one as it'll give you 1/3 octave (many 31 band Eq's are 1/3)... Have fun... Rob Quote Link to comment Share on other sites More sharing options...
m00n Posted September 21, 2003 Share Posted September 21, 2003 Right on Formica! Thanks for taking the time to create all those. Quote Link to comment Share on other sites More sharing options...
m00n Posted September 28, 2003 Share Posted September 28, 2003 Anyone have any suggestions on how to turn a .WAV file into an MP3? I want to take these test tones and convert them to mp3 so I can play them through my DVD player in my theater. Quote Link to comment Share on other sites More sharing options...
tillmbil Posted September 29, 2003 Share Posted September 29, 2003 Ok, I get it. My SPL reads from 18 to 16k, while my hearing goes from 18hz-10000hz. What does this mean? Do I have a hearinf problem? Is 18hz-16khz good for Cornwalls? Quote Link to comment Share on other sites More sharing options...
formica Posted September 29, 2003 Share Posted September 29, 2003 ---------------- On 9/29/2003 8:35:31 AM tillmbil wrote: Ok, I get it. My SPL reads from 18 to 16k, while my hearing goes from 18hz-10000hz. What does this mean? Do I have a hearinf problem? Is 18hz-16khz good for Cornwalls? ---------------- 18Hz - 16kHz sounds about right for Cornwall I's... actually they are still putting out a signal at 18kHz but the response has begun to drop. I wouldn't suggest retesting it louder though, as sine wave can be pretty deadly to the K77 tweeters in that range. As for your hearing... it's very age/sex/exposure dependant... and again our hearing response begins to drop in the 10kHz - 16kHz range. With a little more volume (or listening with your ear close up to the tweeter) might reveal a little bit of sound above the 10k. We are lead to believe that human hearing ranges from 20 to 20k when in reality this is only true for a new born. And 40kHz supper tweeters is wishful thinking. Later... Rob Quote Link to comment Share on other sites More sharing options...
formica Posted September 29, 2003 Share Posted September 29, 2003 ---------------- On 9/28/2003 11:05:40 PM m00n wrote: Anyone have any suggestions on how to turn a .WAV file into an MP3? I want to take these test tones and convert them to mp3 so I can play them through my DVD player in my theater. ---------------- m00n... your DVD player should be able to read a Redbook CD... and all the tones do easily fit on a regular CD, without converting them to MP3 format. Just open you CD burning software and burn a "music CD" and this will convert the .WAV files into Redbook and it's Lossless (no quality degradation). If your DVD/CD player can read text CDs I suggest you choose that option (you have to choose burn CD at once to un-grey the box)... it's easier to remember which tone you are testing. A software like CDeX is freeware and will convert .WAV to .MP3 ... but remember that the MP3 is a compressed audio file (it is NOT lossless). CDeX is principally an audio CD ripping software to create MP3s from you CDs. Later... Rob PS: By the way, the tones are all in MONO... with the same signal to both L/R channels. Balancing all 5 channels would be very difficult from a room acoustic point of view and you will rarely receive a similar audio signal from the rears and the fronts simultaneously. In stereo playback, the bass or drum track will frequently be identical for L/R channels so I'd advise calibrating the room for 2.1 (with your sub). A a room that does pretty well with 2.1 channels should do pretty well with 5.1. (my opinion ) Quote Link to comment Share on other sites More sharing options...
STL Posted October 6, 2003 Share Posted October 6, 2003 Why would you convert them to MP3? You would likely just lower the quality of the signal for no good reason. If your DVD player can play MP3s on a CDR then it should be able to play a regular audio CDR (made from WAV files). Quote Link to comment Share on other sites More sharing options...
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