From owner-freebsd-multimedia@freebsd.org Sun Oct 2 22:54:27 2016 Return-Path: Delivered-To: freebsd-multimedia@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 8695AAF2423 for ; Sun, 2 Oct 2016 22:54:27 +0000 (UTC) (envelope-from ralf.mardorf@rocketmail.com) Received: from nm29-vm8.bullet.mail.ir2.yahoo.com (nm29-vm8.bullet.mail.ir2.yahoo.com [212.82.97.77]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id F1176F39 for ; Sun, 2 Oct 2016 22:54:26 +0000 (UTC) (envelope-from ralf.mardorf@rocketmail.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rocketmail.com; s=s2048; t=1475448858; bh=gT1SLVttKLY337g833zLtRz6Siiw1MsmMHxCUB3NNlo=; h=Date:From:To:Subject:In-Reply-To:References:From:Subject; b=HCHP2ZicbDVAG0QHi7MUbAkmzD7hZuet5fcjipztIRWLa+KVNtand5U+1N5QWRB+k9go4aicdnCeWS6gj+tAGlznq/pp7KsWtHF7LyfR1OOjWvqFzTU7qZ7YIG7GA4L9Ld7j/PZsjEnKp9+ufCH8Ru0pCIP6i9P3bS+vjChh1KN1DPJg500w0gGqShpmdEuaEAS7qUZ/AF6TyP6OhOApDxX8yF6ek270OSQh7XSc/7GOHeKlTXJ2GxriY+7UqJcCn6OQAJlNBg6IJj48SvNN6HkDvilwTxU32g9gt492usj5WlsYDJzG++IKtfpPye6dicgILrB+uz0lw7CaFGJlsQ== Received: from [212.82.98.124] by nm29.bullet.mail.ir2.yahoo.com with NNFMP; 02 Oct 2016 22:54:18 -0000 Received: from [46.228.39.93] by tm17.bullet.mail.ir2.yahoo.com with NNFMP; 02 Oct 2016 22:54:18 -0000 Received: from [127.0.0.1] by smtp130.mail.ir2.yahoo.com with NNFMP; 02 Oct 2016 22:54:18 -0000 X-Yahoo-Newman-Id: 261977.33217.bm@smtp130.mail.ir2.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: L7kszlIVM1kXGwXMV6C.tuQ4aQtYu_rLf2kGMUjHud0MZjG cfxgZ2bda4atqo6t92RpDjQU2TOjskjLGCJWTvaIl3_C40u.jlZZ_OtdwwLT 7FrdC3OVrqzICGjENjPQevC296.VeAbK6ggn8_VVsxtBlpIWwZu2_EFCOAeA uw52C6eTmoo6qiLrxKYkrwLxr5ES.CnsP.0HPdd2DY7TWqRebctwPJZ1a4g3 YA7e4m8vxDzoMC.D9ggHKCqMH3WMC18w5qPTTN9vT1HfAy5u3vfsmL3vbH2_ SDWpFLglj0CXlWeO38o6uA5xO0z_oCz4UJ1ElS7Kz0u.Csvfr0J3Cc5JqpUq M5px4OmsOGEOciUBMqNLdZfXzej6Kd_apxXNsbMOMrIMkO7IU2puPH4heysp T0ggh8pEjG3yCSFbs4XlljhDL_BbEhaT0Pu5vT5AAd79tMEYJl2PdOTBClf6 Bu1q4KtoAlmH4Yje4THWhkG5NDbLJrMRD_V31M6VYmdWJuBzl0bBJf3CY0xs iqqFUNg1TfovhEA7M_e6VrzgfriO6q38w2e.RhDT204X10I8wtDSLulaxMRA vBqrIpMMFuSOd2JqTxe_8fVeU9jkOHv4- X-Yahoo-SMTP: BeMCPs2swBABTJ3kAeEiC_hE0mz8jRexLddJfD8pI2j32fOacjBmXg-- Date: Mon, 3 Oct 2016 00:54:15 +0200 From: Ralf Mardorf To: freebsd-multimedia@freebsd.org Subject: Re: Midi and Music Composition on FreeBSD Message-ID: <20161003005415.03e3edda@archlinux.localdomain> In-Reply-To: References: <20161002165348.0600b4d3@archlinux.localdomain> X-Mailer: Claws Mail 3.14.0-2-ge48b739 (GTK+ 2.24.31; x86_64-arch-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 02 Oct 2016 22:54:27 -0000 On Sun, 2 Oct 2016 22:21:22 +0200, Hans Petter Selasky wrote: >Most people will not notice or care about delays less than 1-2ms for >MIDI when playing a MIDI piano or MIDI organ. I'm not talking about delay, but MIDI jitter. Indeed as long as you won't record percussive sounds by one external synth after the other, playing those percussive sounds in unison, then 2 ms jitter are tolerable. >BTW: A good organ player should be capable of handling up to several >hundred milliseconds of delay in big rooms when doing live >performances. Delay is sometimes good and realistic. Sound waves are >not like radio waves exactly :-) Latency of a pipe organ might be > 50 ms, however, this already is too much for most poplar musicians. Apart from this, the time required from the sound source to the ears is something to add where ever and whatever you are playing, this is not the latency caused by the used gear. Computer musicians usually require a latency <= 11 ms caused by the gear. I don't know what tendencies FreeBSD has got regarding MIDI jitter, but the audio latency I experienced IIRC was > 100 ms, such a latency caused by the gear makes live playing impossible. A latency of several hundreds milliseconds caused by the gear is grotesque and it's still absurd, if you add the travel time of a large hall, http://www.sengpielaudio.com/calculator-soundpath.htm , let alone that in most cases the musicians are close to the sound source, but even in a church, where the organist is far away from the sound source. Regards, Ralf