A Method for converting m4a (ALAC Apple lossless) to WAV/APE/FLAC

I bought some CD last year and copied it with EAC on the PC and compress it into an ape. After the CD is sent, the missing CD is lost.

Later, I switched from PC to Mac. Because iTunes does not support ape, I converted it into ALAC. Apart from a small number of ape s, they survived because they were misplaced, and all the other ape s were cleared.

I recently added Vivo to try those songs in the natural environment. Unfortunately, Vivo won't be able to play those ALAC. What makes people laugh most is that the song duration can be displayed.

I had to admit it when I remembered the monkey going up the hill. However, the current situation is better than that of monkeys, at least ALAC is still in the hand, so there is a nostalgic idea in mind, if you can go back, you must cut those songs into CD, in theory, it can be traced back. I have considered the conversion.

The first thing that comes to mind is that kugou encode supports conversion between ape flac wav Files. ALAC uses the m4a extension, but the encode cannot recognize it, saying it does not support lossless conversion.

Next, I first found several software and tried several software at the risk of poisoning. When one of the downloads is complete, chrome prompts me to include insecure content and asks me to confirm that I am responsible. When demand and conflict arise, my mind becomes weak. I tried again and again. The result was disappointment.

Later, I finally found my ideas on the Forum and sorted them out based on my actual tests:

Step 1: Import m4a to iTunes;
Set "the wav encoder is used for import, and the wav bit rate is automatic" (insert the CD import settings in "menu" edit "general );
Select the desired track and right-click the option "create WAV version ";
In the generated WAV version of the iTunes Media Directory, cut the wav file.
PS: After conversion, duplicate songs are displayed in the iTunes library. Select duplicate tracks, right-click the option to delete them, keep the file, and drag the tracks to iTunes.

As of now, the wav version has been created, so it is unnecessary to talk about it later.

Step 2:
Many methods are used to compress WAV Files into ape files,
The most native and classic method on the PC is to use the official monkey's audio. Others I know include foobar and kugou encode.
The xld on Mac seems to work too.
FFmpeg is unknown.

Here, I suddenly remembered the previously written bat script for calling FFMPEG drag-and-drop conversion. I tried to convert ALAC to FLAC. I really wanted to slap myself in the face.

@echo offif %1!==! (goto END)if not exist flac (md flac):LOOPset arg=%1if %arg%!==! (goto END)ffmpeg.exe -i %1 -acodec flac "%~dp1flac\%~n1.flac"shiftgoto LOOP:END

Put ffmpeg.exe in an environment variable directory (such as C: \ Windows), drag and drop the file to be converted to the BAT file to start conversion.