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Old 18th November 2011, 04:47 PM   #1
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Default Not sure the best fit for this thread, but this is close

I decided to start a new thread and see if this will work on DIYA.

I made 2 files of the same song. One is a WAV and one is AAC. Both were then placed into an aiff file to be the same size. To get the songs in full resolution you will need to download them. Just hit the 'down arrow' in the tittle bar of the recording. This is a single blind test to differentiate how important file formats are.

G49 by dantheman-10 on SoundCloud - Create, record and share your sounds for free

I26 by dantheman-10 on SoundCloud - Create, record and share your sounds for free

Please PM me with which one you think is the WAV file in the form of "i26", "g49", or "I can't tell a difference". It would be nice to have another volunteer to receive the PMs to prevent cheating and assure an accurate count.

Which file is what will be shown when participation falls.

Any commentary about how big the difference is to you would be appreciated.

I do not want to post a poll on this d/t the bias it will introduce.

Thanks,

Dan
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Old 19th November 2011, 02:30 AM   #2
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These clips are short--about 90 seconds. There is no compression or limiting in them. I great stereo should really give a dynamic presentation. Might be fun just for that!

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Old 19th November 2011, 06:49 AM   #3
erin is offline erin  Australia
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In my experience the lossless file type that the audio file is stored in does not affect the sound. Its lossless!

It is the playback of it that does affect the sound.

I don't need to download these to know that converting them to .wav and then playing them back as a .wav will sound better than playing them back as an AIFF.

I've done these experiments before.

But anyhoo.....
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Old 19th November 2011, 12:37 PM   #4
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How very Scottish Erin !

Interesting thread though - I'll be watching this and then have a go too.

Bye fur noo, anyhoo
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Old 19th November 2011, 12:50 PM   #5
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Download them and play them. All conversions have been done. You just hit play. They were both converted straight from a 24/96 original.

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Old 19th November 2011, 01:04 PM   #6
erin is offline erin  Australia
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Dan,
Respectfully, I don't get the point?

They either sound different to you or they don't. Does it really matter what others think?
Surely it should only matter how it sounds to you on your system?

You have not explained it well enough for me.
Did you rip one file direct to .wav and the other direct to AAC, and then contained them as an AIFF file?

Do you want people to play back the files as you have presented them in AIFF, or is converting them to .wav a valid way of playing them back for this experiment?

So some further explanation would go a long way.
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Old 19th November 2011, 02:32 PM   #7
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I'll just go through your questions one by one:

The point is to see how important it is to you(generally speaking) to get an uncompressed file as well as audiophiles as a whole.

It probably matters what you think to you anyway. I don't know if it matters to you what others think or not. The outcome of the test doesn't matter to me.

Exactly.

Yes.

Play back as an aiff. Compressing them again would be less than optimal. If you listen to them on the SC website, they are compressed down to 128kbps mp3.

I'm, not sure what further explanation is needed. These arguments abound on audiophile sites(more so in Australia it seems)--even involving 2 uncompressed files. This is a way to hear w/o bias the difference. That way you'll know regardless if you can tell or not, you'll be able to hear how big or how little the difference is and thus its importance. If you don't want to participate... fine. Free world.

Hope that clarifies everything.
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Old 19th November 2011, 03:18 PM   #8
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Music with no special dynamic, bandwidth limited to 12kHz, not telling what bitrate you had used for loseless...
My guess is, based on this biased test, that you are trying to make a point that lossy compressed is as good as uncompressed?
Yes, for that kind of music. And yes, AAC is better than mp3 at same rate.

I26 sounds like is the original. But there is not a distinctive difference, due to the musical program.

Last edited by SoNic_real_one; 19th November 2011 at 03:37 PM.
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Old 19th November 2011, 05:22 PM   #9
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Thanks for blowing the test here. Way to go. There's probably more dynamics on there than anything you own.

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Old 19th November 2011, 05:23 PM   #10
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Still counted your vote.

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