{ "numMessagesInTopic": 8, "nextInTime": 186, "senderId": "A2Pkmzr5KuxwdHpF_5wFncDWWIxTqBaaYl1pUETKN4YthBH9eptQUAN37pd_BKS4itly2Tymoxz5SXDd-FTDcLrxns7bHy07RA", "systemMessage": false, "subject": "Re: [01v96] OT: EQ phase and Linear Phase EQ", "from": ""Ronny Morris" <romo1@...>", "authorName": "Ronny Morris", "msgSnippet": "Interesting discussion! I agree. If this is what Waves says about Linear Phase EQ: ...In Linear Phase EQ all frequencies are delayed by the exact same amount,", "msgId": 185, "profile": "ronnymorris2001", "topicId": 170, "spamInfo": { "reason": "0", "isSpam": false }, "replyTo": "LIST", "userId": 73943631, "messageBody": "
\n\n\nInteresting discussion!\n\nI agree.\n\nIf this is what Waves says about Linear Phase \n EQ:\n
"...In Linear Phase EQ all frequencies are \n delayed by the exact same amount, which is at least half the length of the \n lowest frequency you are dealing with..."\nIf the lowest freq "you're dealing with", is that \n 258 Hz, it's easy to understand why Waves has problems getting any lower. The \n delay at half the wavelenth of 258 Hz is:\n\n\n180/360/258=0.0019, i.e. about 2ms.\n\nDown at 10Hz, it would be:\n
180/360/10=0.05, \n which is 50ms. They'll sure have some heavy \n math to do!\n\n\n\nYou must have mis-read me Ceege. \n I didn't say that Waves had a problem aligning time contraints, below 258Hz. \n The low band LP goes down to 10 Hz. The complaint that I have is you have \n to go through 2 processors to set a curve that spans 258 Hz. The 4 Baxandall's \n on the broadband won't go below 258k. It's the lack of Q factor that sucks, \n because you can't overlap the mid and high sweeps with the low. \n\n\nAs Rupert says the following, he wins hands down:\n"All of my designs are kept within a phase shift of between \n 2 and 5 degrees down to 10 Hz", \n\nAfter the Pro Sound interview with \n Rupert, the only hands down conclusion I have, is that he likes to plug his \n products more than BK does his new book and that he needs to join the club and \n understand that digital eq's offer more control than analog eq's and that \n the future lies in digital. :O)\n\n5/360/10=0.00138 i.e. about 1.4ms\n\nWhen the freq rises, the delay gets shorter. \n According to Rupe, it's OK:\n\n"...it's following laws of nature that \n include a lot of phase shift..."\n\nHmmm, let's see \n what the future has to brings? :D)\n\nTechnology's great \n ain't it Ceege. :O)\n\nKeep On \n Trackin'\n\nRonny\n\n\nCeege
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