On Fri, Sep 27, 2013 at 09:37:00AM -0400, Grekim Jennings wrote: > I need to convert 24-bit 48000 .wav to 44100 .wav. > What's your go-to converter for this? > Quality would be my first consideration, > 2nd would be ease of install or build, > 3rd would be I have a preference for command line. > This would be for off-line use. I use zresample wich comes as an example app with the zita-resampler library. Apart from resampling it can also change the sample format, and add dither if the output is 16-bit. It handles any number of channels. > zresample --help zresample 1.4.0 (C) 2007-2012 Fons Adriaensen <fons at linuxaudio.org> Usage: zresample <options> <input file> <output file>. Options: Display this text: --help Output file type: --caf, --wav, --amb Output sample rate: --rate <sample rate> Output sample format: --16bit, --24bit, --float Dither type (16 bit): --rec, --tri, --lips Add zero padding : --pad The default output file format is wav, 24-bit, no dithering. Integer output formats are clipped, float output is not. Ciao, -- FA Thanks Fons. Do you have a recommendation for how much headroom to leave before the conversion, and if you do clip during the conversion is there any sort of warning? I used to leave around 1.5 dB. The way I used to go about this was to apply all limiting to the 24-bit 48000 kHz track, then SR convert, then normalize (to ~ -0.3 dB) or set a final level, and finally dither/quantize. |
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