22 December 2020, 12:49 | #1 |
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FLAC is the only way to appreciate recorded WinUAE Amiga audio
I have devised a method of recording WinUAE audio as internal WAV files and then encoding them to FLAC, to make it easier for playback on items like phones, etc which don't support live emulation.
Previously, I used this process with AAC audio, but I discovered that the audio compression ends up sounding muddy and artifacty, even at high bitrates, and so I thought I would try FLAC for the first time. Luckily, Audacity comes with just the export tools I need, so after I record the audio in WinUAE, then I can edit it with Audacity (I only trim the start and ends) and then export to FLAC, and the file is done! The idea is it makes the audio more portable, and I can listen to the audio of my favourite demos without having to run WinUAE each time, and it's great to have an Amiga jukebox when you're out and about! |
22 December 2020, 13:01 | #2 |
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22 December 2020, 13:30 | #3 | |
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Quote:
Is it possible you can provide examples? I'm curious of that difference. |
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22 December 2020, 13:46 | #4 | |
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I don't even know if the highest rate AAC bitrate would prevent those problems, but AAC is lossy, and just for once, I wanted to try a lossless codec like FLAC. |
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22 December 2020, 14:17 | #5 |
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Can you upload those files somewhere to download?
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22 December 2020, 14:21 | #6 |
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I no longer have the original files, but I can easily recreate them even if it's just a short sample, it will just take some time. Have patience.
EDIT: The comparison file is in the Zone, hear for yourself, carefully, with earphones. You can discern the anomalies in the M4A audio easily compared to WAV and FLAC. Last edited by Foebane; 22 December 2020 at 14:43. |
22 December 2020, 15:03 | #7 |
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160 is on the low side. iTunes default is 256 for purchased files and you won’t be able to hear any difference then.
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22 December 2020, 17:14 | #8 | |
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Thanks for uploading it. Yeah, I know there is a difference, but to say honestly: having such short and strange piece of audio that sounds so bad in the first place I can't say if the degradation have any significany. In my own reception at least. |
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22 December 2020, 17:48 | #9 | ||
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Quote:
Quote:
Also, while the audio doesn't sound very good, I still love that demo for its atmosphere. |
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22 December 2020, 23:07 | #10 |
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You mean lossy. I only allow Autobooks to be in AAC but then, has to be high quality or they sound horrible. MP3 is the same way. 160 is indeed on the low end of the spectrum. I've converted all my CDs to FLAC/cue or APE/cue..as MP3 or AAC are horrible for archiving in since it's a loss of full quality, even at 320.
If you have a MicroSD card for your Phone that's "large" then use FLAC - personal preferences. I use Android - I left Apple and their restrictions. I'm all about quality when it comes to audio (huge Rush fan). So, that was a good test to notice the difference that you did. If you really want to use AAC..stay at or above 192 CBR..do NOT use VBR (It'ssssssss okay for music). Remember, Amiga Audio wasn't always done at high quality...for the 80s and 90s so if you're encoding low quality, to Low quality...yeah, not a good result. Haha! |
23 December 2020, 00:38 | #11 | |
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Amiga audio is 100% digital, and has a lot of stuff in it that makes it unfeasible for lossy compression, compared to old commercial or even classical music, with natural sounds. The main reason I chose FLAC this time was to simply capture audio as I would play it from WinUAE normally, but record it so I could make it portable as media. |
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23 December 2020, 01:05 | #12 |
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Interesting, the Amiga sound is so particular and it's a wast if MP3 modify it.
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23 December 2020, 02:45 | #13 |
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@ Foebane
Yeah, I got that about why. WAVe, and other formas are 100%.. Amiga audio wasn't the only. Though it was first with stereo. Any digital signal may be converted to lossy. Or kept as lossless. I was only commenting about the quality. @ TEG Naaaah.. I've compressed a lot of Amiga sounds through many, many years.. Playing around with sound. It's only particular due to machine. Eventually *almost* everything become convertible. |
23 December 2020, 09:16 | #14 | ||
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Quote:
Quote:
Amiga audio, while indeed advanced for a 1985 home computer, was never even close to a high quality sound. |
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23 December 2020, 09:40 | #15 |
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23 December 2020, 09:53 | #16 |
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You can use something like foobar to easily convert FLAC to 320kb mp3 and save yourself heaps of space. I bet you won't be able to tell the difference either.
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23 December 2020, 12:31 | #17 |
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I use ModPlayer on PC to play Amiga PT modules and convert them to WAV, fire up AIMP tools to make a 320kbs MP3s and use my stereo to play the MP3s on a loud volume level. The sound is outstanding.
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23 December 2020, 14:10 | #18 |
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I'm absolutely sure it WAS. Where else are you going to find hardware that allows you to create music via tracker software for sub-£500, using samples, in the mid-1980s?
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23 December 2020, 14:18 | #19 |
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@Foebane, I agree with you there.
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23 December 2020, 14:26 | #20 |
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And could you honestly call the music created on the Amiga high quality, soundwise? I'm not talking about quality of composing, because some of the tracker musicians on Amiga really did wonders, but the end result, as far as the SOUND QUALITY is concerned, leaves a lot to be desired.
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