From owner-freebsd-questions@FreeBSD.ORG Fri Dec 14 12:58:30 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 0359CFEC for ; Fri, 14 Dec 2012 12:58:30 +0000 (UTC) (envelope-from ralf.mardorf@rocketmail.com) Received: from nm6-vm0.bullet.mail.ird.yahoo.com (nm6-vm0.bullet.mail.ird.yahoo.com [77.238.189.210]) by mx1.freebsd.org (Postfix) with ESMTP id 5EDC98FC15 for ; Fri, 14 Dec 2012 12:58:28 +0000 (UTC) Received: from [212.82.105.224] by nm6.bullet.mail.ird.yahoo.com with NNFMP; 14 Dec 2012 12:58:27 -0000 Received: from [217.146.189.65] by tm20.bullet.mail.ird.yahoo.com with NNFMP; 14 Dec 2012 12:58:27 -0000 Received: from [127.0.0.1] by smtp145.mail.ird.yahoo.com with NNFMP; 14 Dec 2012 12:58:27 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rocketmail.com; s=s1024; t=1355489907; bh=Z+8s0lxeGVFCDd5QdspO4Br0Yq+6V5J0VuYpCowp9N8=; h=X-Yahoo-Newman-Id:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:Subject:From:To:Date:In-Reply-To:References:Content-Type:X-Mailer:Mime-Version:Content-Transfer-Encoding; b=TAyUKw3+GTUPPIkjmwFEPuKidMSaSO6LIMoV3fuilwwtbXnhC2mni2FiF4tz7baL8aecValGOmAVAeLuqTqvoBs4bWpKG4LRmQj+u8QFxZyJeszoN4uK4Pr3V7AVROCurfVwyY7VjgY1gZ6Xl9ZCVc2M/4Gr9mxRA8GrhpvXgDc= X-Yahoo-Newman-Id: 505430.76646.bm@smtp145.mail.ird.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: w5gGfNoVM1nH5wy_ifBC260IM00zHrZlMWjEwuTGyK9JQUv XqTCxQ0UM37C8bhdPDQIlt4Tv4TbNn.IlcOz.nHA0EvUNYUMJOBj8gmMtaU3 n3csF2AV_wx82D92TPGm0qKB3HMAOHteRFYtNZX274CGuTeOkeINLWXS7Tnn ZHtnTNpVjhpOhK7IWHHEn6lCvPzLC0P0RrvHLEzzWRo2iR7cewL1mM0.1uyf tSWXBljiYGw_EXe.TJ_l2huNZR6Aw1N3YHZC1HT5RF_OIupe_CkbhRXkB8Yo PnpTR59xo5.OuVbdri5p0PoGiJr8WaqrN3ySh1yj9hrIDNFqm1W7w0PFPXB2 qkNxIAwoQCiZQjfqsC7Yw_arI9GHzUMabMts6hOAcIJxyA6z9Txs0hczvmp7 tMQJD7bu8Haf52X0xSt5HPY57eZLrx5B8BYJnGs4- X-Yahoo-SMTP: BeMCPs2swBABTJ3kAeEiC_hE0mz8jRexLddJfD8pI2j32fOacjBmXg-- Received: from [85.182.21.114] (ralf.mardorf@85.182.21.114 with login) by smtp145.mail.ird.yahoo.com with SMTP; 14 Dec 2012 04:58:27 -0800 PST Message-ID: <1355489906.3755.59.camel@q> Subject: Re: [Bulk] Re: audio playback with variable tempo From: Ralf Mardorf To: freebsd-questions@freebsd.org Date: Fri, 14 Dec 2012 13:58:26 +0100 In-Reply-To: <20121214095253.25bc9b40.freebsd@edvax.de> References: <50C912D4.6060305@dreamchaser.org> <20121213075126.4d021d07.freebsd@edvax.de> <50CA6B43.4070305@dreamchaser.org> <20121214095253.25bc9b40.freebsd@edvax.de> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.6.0-0ubuntu3 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Dec 2012 12:58:30 -0000 On Fri, 2012-12-14 at 09:52 +0100, Polytropon wrote: > On Thu, 13 Dec 2012 16:56:51 -0700, Gary Aitken wrote: > > On 12/12/12 23:51, Polytropon wrote: > > > On Wed, 12 Dec 2012 16:27:16 -0700, Gary Aitken wrote: > > What is mix mixing, and what does > > monitor do? A schematic would be helpful... > > If I remember correctly, monitor is a monitor channel for the > inputs, so this channel contains what will be recorded (even > though only one of its sources can be recorded at a time). > It lets you listen to the recording source. I don't know the OP's hardware, but some audio devices have a mixer hardware, so usually "monitoring" by the hardware has the advantage, that you can rout incoming signals to the software + directly to the output. This e.g. does avoid latency. > vol, bass, treble, synth, pcm, speaker, line, mic, cd, mix, pcm2, > rec, igain, ogain, line1, line2, line3, dig1, dig2, dig3, phin, > phout, video, radio, and monitor. Some of those terms are well-defined, others, e.g. "mix" perhaps are defined for some devices. My RME card does enable a "submix", that is something very special and there's a manual, that does explain this feature. For semi-pro and pro audio cards there usually are manuals available. > > pcm3 is an analog device, and pcm4 is digital; > > does that have anything to do with it? pcm is for digital signals of the computer, that by some audio devices can be routed, e.g. hardware output 1 - pcm 1 or hardware output 1 - hardware input 2 > I also assume the functionality depends on what > the hardware implements in reality, which may differ from > device to device. They most extreme differ. The most used semi-pro cards for sure are cards with an Envy24 chip, e.g. M-Audio, TerraTec, professional cards such as the RME cards can have something like "TotalMix: 760 channel Mixer with 42 bit internal resolution" and interfaces such as ADAT, AES/EBU + separated word clock IOs. Consumer devices usually support surround sound, can't be synced and don't have special interfaces, so the audio devices have completely different hardware mixers. Crap as pulseaudio is unable to handle semi-pro and pro cards and even for consumer cards, it does an automatically volume control that is insane. Usually the audio devices hardware mixer will be set up and then seldom be touched again, the usage of several faders in a chain, to control the volume of just one audio signal, only can be handled by experienced engineers. Regards, Ralf