Date: Sun, 27 Aug 2006 00:49:46 -0700 From: Gary Kline <kline@tao.thought.org> To: andrew clarke <mail@ozzmosis.com> Cc: Gary Kline <kline@tao.thought.org>, freebsd-questions@freebsd.org Subject: Re: taking many 198k mp3 files and converting them to 16k mp3 Message-ID: <20060827074946.GA60715@thought.org> In-Reply-To: <20060827060122.GA63679@ozzmosis.com> References: <20060827053654.GA60292@thought.org> <20060827060122.GA63679@ozzmosis.com>
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On Sun, Aug 27, 2006 at 04:01:23PM +1000, andrew clarke wrote: > On Sat, Aug 26, 2006 at 10:36:54PM -0700, 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? > > LAME (audio/lame in Ports) will do conversions: > > bash-2.05b$ lame -b 32 -h Python411_060823_Milestones.mp3 > ID3v2 found. Be aware that the ID3 tag is currently lost when transcoding. > LAME version 3.96.1 (http://lame.sourceforge.net/) > CPU features: MMX (ASM used), 3DNow! (ASM used) > Resampling: input 32 kHz output 22.05 kHz > Using polyphase lowpass filter, transition band: 8269 Hz - 8535 Hz > Encoding Python411_060823_Milestones.mp3 > to Python411_060823_Milestones.mp3.mp3 > Encoding as 22.05 kHz 32 kbps single-ch MPEG-2 Layer III (11x) qval=2 > Frame | CPU time/estim | REAL time/estim | play/CPU | ETA > 600/40388 ( 1%)| 0:07/ 8:35| 0:07/ 8:51| 2.0471x| 8:43 > > etc. > > If you want to do multiple files you'll need to write a script to call > LAME multiple times. Ah, thank you, thank you. I just can't see wasting so much of my disk [and bakup disks] for what are mostly voice/lectures. I suppose I can buy a DVD-R[W] and fnd out, but is there any reason why I can't have many hours of audio on a DVD? In other words, id a DVD *only* for video? --Might be nice to gather (parts of) my favorite CD's onto one Very long-playing disk. gary -- Gary Kline kline@thought.org www.thought.org Public service Unix
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