Most efficient codec

[sredmyer]

What is the most efficient (runs the quickest) lossless codec? I am considering doing my ripping in tow stages. First I would rip a batch in the fastest most secure way. Then when that batch is finished (and the next has begun) I would convert those files to the desired format (using Batch converted) on a separate machine.

On a similar note, I have noticed when I have the HDCD DSP effect selected, the encoding process freezes at 0% for several seconds before encoding actually starts. This does not happen unless the HDCD DSP is selected. In other words once a track has finished ripping and begins encoding the encoding display will show 0% for several seconds before beginning to move. When HDCD DSP is not selected the encoding display starts progressing immediately. Anybody else experience this? Any idea as to whether or not this can be fixed?

Thanks,

[Thg6276]

Re: Most efficient codec

On a similar note, I have noticed when I have the HDCD DSP effect selected, the encoding process freezes at 0% for several seconds before encoding actually starts. This does not happen unless the HDCD DSP is selected. In other words once a track has finished ripping and begins encoding the encoding display will show 0% for several seconds before beginning to move. When HDCD DSP is not selected the encoding display starts progressing immediately. Anybody else experience this? Any idea as to whether or not this can be fixed?

---> same for me when DSP HDCD is selected

[Spoon]

Re: Most efficient codec

When at 0% the HDCD action takes place, because of the design it cannot show an active % when HDCD is processing the audio.

[Thg6276]

Re: Most efficient codec

Understood Spoon - Thanks

[sredmyer]

Re: Most efficient codec

When at 0% the HDCD action takes place, because of the design it cannot show an active % when HDCD is processing the audio.

I suspected as much. Would it be possible to not incur the time penalty when ripping a standard 16bit disc. If this is not possible it is certainly feasable to simply separate the discs and rip the 24bit discs in a batch with the DSP selected and rip the other with it unselected.

On the other question what would be the fastest codec to rip to?

Thanks,

[IamNemo]

Re: Most efficient codec

What is the most efficient (runs the quickest) lossless codec?

Here are some benchmarks:

http://wiki.hydrogenaudio.org/index.php?title=Lossless_comparison

http://www.maximumcompression.com/benchmarks/benchmarks.php

http://www.bobulous.org.uk/misc/lossless_audio_2006.html

Nemo

[Spoon]

Re: Most efficient codec

For 16 bit you would have to run a time test, I suspect there is not a huge difference in time.

[sredmyer]

Re: Most efficient codec

For 16 bit you would have to run a time test, I suspect there is not a huge difference in time.

Ok thanks

[bhoar]

Re: Most efficient codec

Ok thanks

My gut feeling is that on contemporary hardware (e.g. dual core cpu, sata drive), it's one of the lossless codecs, such as FLAC, set to the one of the lower compression levels.

When the CPU requirements of compression are low, the bottleneck becomes the write throughput of hard drive.

It might even be faster than WAV.

-brendan