From owner-freebsd-questions@FreeBSD.ORG Sun Aug 27 05:43:19 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E640716A4DA for ; Sun, 27 Aug 2006 05:43:19 +0000 (UTC) (envelope-from girishvenkatachalam@gmail.com) Received: from wx-out-0506.google.com (wx-out-0506.google.com [66.249.82.232]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5264943D46 for ; Sun, 27 Aug 2006 05:43:19 +0000 (GMT) (envelope-from girishvenkatachalam@gmail.com) Received: by wx-out-0506.google.com with SMTP id i27so1308481wxd for ; Sat, 26 Aug 2006 22:43:18 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=XV1eB8ge9xuq85LEC23JUlZKKXhILyWOzHYwyKhPSIqO8Icdw2ONiMKvBGykvfexjOm2DcrE1vEbb4tCh6FRgxzo1pLzA4u7hOnfWDmXmzC4CyJ+ulmqXEpDpLYc/yuAw1qigzO5po8tp6NwPm1lQhZvRUN+sMTH1QFkrkmJ1F4= Received: by 10.90.94.2 with SMTP id r2mr840878agb; Sat, 26 Aug 2006 22:43:18 -0700 (PDT) Received: by 10.90.98.2 with HTTP; Sat, 26 Aug 2006 22:43:18 -0700 (PDT) Message-ID: <7938ae610608262243l4e85fd6bw3147dfeb7a636d7f@mail.gmail.com> Date: Sun, 27 Aug 2006 11:13:18 +0530 From: "Girish Venkatachalam" To: "Gary Kline" In-Reply-To: <20060827053654.GA60292@thought.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20060827053654.GA60292@thought.org> Cc: FreeBSD Mailing List Subject: Re: taking many 198k mp3 files and converting them to 16k mp3 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 27 Aug 2006 05:43:20 -0000 On 8/27/06, Gary Kline wrote: > > Is there a way of using sox (or another translator) to turn HUGE > audio mp3 files into much much smaller files? Say taking man mp3 > files that are stored at 198k high fidelity and outputting these to > 16k or 32k mp3 (or *.ogg or other format) audio files? > > thanks for any insights, sugggestions, or pointers, > > gary Normally voice files dont' need the sort of fidelity ur talking about. you can make do with a much lower bit rate though i can't give u a number. u have to test it with ur ears. there are plenty of tools out there that give u what u want. sox is one and ffmpeg is another. i am sure there are many other that do as good a job. if i were u i woudnt go for ogg since it causes transcoding losses. If you had a wav file, ogg is ok but since u already have an mp3, ogg doesnt have enuf info to do a good job. HTH, Girish -- Education is an admirable thing but it is good to remember from time to time that anything that is worth knowing cannot be taught. - Oscar Wilde