iSonics
iSonics
1.8.1

4.8

iSonics free download for Mac

iSonics

1.8.1
24 April 2015

Convert audio files between formats.

Overview

iSonics makes it easy to convert any audio format and CDs to all popular audio formats: MP3, MP2, AAC, FLAC, ALAC, WMA, OGG Vorbis, AC3, and WAV.

It handles metadata with ease and even enables you to change metadata.

As a bonus you can import CDs and convert the audio tracks to any audio format, including metadata retrieved online.

What's new in iSonics

Version 1.8.1:
  • Added track number format "##[space]"
  • Updated to libvorbis 1.3.4, Flac 1.3.0, Opus 1.1 and wavpack 4.70.0
  • Fixed issue splitting files with CUE files.

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42 iSonics Reviews

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Rate this app:

Christel1987
20 January 2013

Most helpful

Great GUI and most of all it is capable to use all available CPU power. It manage to convert a big folder with +100 files a lot faster compared to Max on my i7. That only is worth the low asking price! 5 golden stars.
Like (7)
Version 1.2.3
makeingcool
25 October 2016
Avdshare Audio Converter can Free download Opus converter for Mac or Windows version to convert Opus audio files to MP3, AAC, FLAC, AC3, WAV, WMA, OGG, RA, AU, M4A etc.You can find it at http://www.avdshare.com/opus-converter-to-mp3-aac-flac-ac3-wav-wma-ogg
Like
Version 1.8.1
ozgur-1
10 November 2014
best app for converting FLAC to MP3
Like
Version 1.8.0
Ronnb
14 August 2014
This is a really easy to use and flexible application that can handle AIFC formats as well as others. So far, this is the best application I have found for general audio conversion on the fly.
Like
Version 1.8.0
MaxWilders
14 June 2014
Excellent choice for converting virtually any audio type to another. Polished interface makes it easier to use compared to other audio converter apps. Its not free though.
Like (4)
Version 1.7.0
3 answer(s)
piquadratpi2
piquadratpi2
14 June 2014
I totally agree! And it is getting better after each update! I also used X-losless decoder for years but there are some errors when I decode flac or ape files using the cue-file. The last tunes always have a wrong time and after decoding they are not usable. And the price of iSonics is really fair!
Like (1)
Big Johnson
Big Johnson
16 June 2014
I think the errors you experienced with XLD are not the software's fault. If it were, it surely would have been reported by many users on MU's XLD page, but it hasn't - it maintains its deserved 4.5 star rating. I've converted thousands of FLAC files as well as dozens of Ape files, and haven't experienced the unusable files you mentioned. I have occasionally run into FLAC files that XLD couldn't convert, usually several or all tracks on an album, so it seems the ripper caused some abnormality. And the price of XLD is even more fair, as in FREE!
Like (2)
piquadratpi2
piquadratpi2
17 June 2014
@BigJohnson: the errors I mentioned are reproducable with nearly every big flac or ape and the cue-file which has to split the one big flac or ape into several small files. With iSonics the mentioned problem doesn't appear, therefore I mentioned the errors here. I used XLD very often before i found iSonics and it is a very good and free application. But only iSonics could solve my problems. Therefore I bought it and therefore I wrote that it is a great little program. And the developer always helps me immediately if I have any problem or question.
Like (1)
Liam-
08 June 2014
Although I still use X-lossless decoder for some tasks, I keep coming back to iSonics. The GUI is really clever and easy. Drag files or folders you need to convert, choose the audio format, tweak some settings as you wish and hit the convert button. Thats it. Always delivers superb quality and fast results. Thumb up for being the easiest converter and another thumb up for the nice responsive devs.
Like (5)
Version 1.6.3
Big Johnson
05 June 2014
The FLAC standard only has 8 approved compression levels. iSonics offers 12 levels. When I asked the developer why, they were rather blunt and told to me to ask the developer of the libavcodec that they use. I received this reply: "Levels 0 to 8 use essentially the same compression settings as the official libFLAC encoder. Put simply, levels 9 to 12 use additional or alternative settings to achieve better compression." Since libavcodec uses compression levels other than the 8 approved levels, they should not be called FLAC, they should be called FLAC Plus, or some other name that differentiates them from FLAC because they aren't technically FLAC. If libavcodec wants to call its 12 levels FLAC then the developers should attempt to have the FLAC standard amended. Therefore it seems iSonics uses a codec that does not adhere to FLAC standards. Who knows what algorithms they use to compress at additional levels? It also seems to be an inferior codec to the libFLAC codec that XLD uses. I found this unfavorable remark about the codec used by iSonics: "Contrary to libavcodec's video codecs, its audio codecs do not make a wise usage of the bits they are given as they lack some minimal psychoacoustic model (if at all) which most other codec implementations feature." I ripped a CD and these are the numbers for the first 5 tracks using different encoding. iSonics FLAC level 8 1. 19.4 MB 2. 17.9 MB 3. 18.9 MB 4. 18.2 MB 5. 19.3 MB iSonics FLAC level 12 1. 19.1 MB 2. 17.6 MB 3. 18.6 MB 4. 18.0 MB 5. 19.2 MB XLD FLAC level 8 1. 19.3 MB 2. 17.8 MB 3. 18.8 MB 4. 18.1 MB 5. 19.3 MB As you can see, iSonics at level 8 creates files 1/10th of a MB or less larger than XLD at level 8, so they are comparable at the same level (XLD is always smaller). But at level 12 iSonics files are only 1/10th to 2/10ths of a MB smaller than XLD. Since the savings created by using libavcodec at level 12 amount to about 1/5 of a MB per file, I'd say the extra levels are irrelevant and you may as well stick with the approved levels. I have over 20,000 FLAC files. 20,000 times .02 MB savings each amounts to 400 MB, which is about one album. While ripping that CD tonight I found another problem with iSonics: It uses the CDDB database to gather track metadata. My disc was not found so I would have had to manually rename all 48 tracks. I opened the disc in XLD and all track names were located in the FreeDB and MusicBrainz databases. It saved me a lot of time and aggravation by ripping with XLD. MY CONCLUSION IS THAT YOU STICK WITH XLD FOR IT'S SUPERIOR CODEC THAT FOLLOWS FLAC GUIDELINES, AS WELL AS ITS SUPERIOR ACCESS TO CD DATABASES.
Like (3)
Version 1.6.3
6 answer(s)
Big Johnson
Big Johnson
05 June 2014
AND XLD IS FREE!
Like (1)
Osxbytes-Dev
Osxbytes-Dev
05 June 2014
iSonics uses libflac (same as XLD) for encoding to FLAC. Also, psychoacoustic compression is not used by FLAC at all ! Because FLAC is a lossless codec, there is no difference in quality too. The file size differences can be some setting not being the same or a different FLAC version used. As said, FLAC is lossless meaning choosing a level has no impact on quality but only on file size. The higher level setting, the longer it takes to compress the file but smaller the filesize. About Levels: libav use 12 instead of the default 9 (0-8). The extra four levels will result in smaller file size and is compatible with any FLAC player too. So no reason not to use it. The FLAC wiki also states FFmpeg (same as libav but different fork) is the best FLAC implementation (fastest and most efficient).
Like (2)
Big Johnson
Big Johnson
05 June 2014
Obviously the article I referred to was talking about lossless formats when they mentioned psychoacoustic properties. I didn't test it, I'm just quoting what the developers of MPlayer said. But since the same codec also handles FLAC, why use it at all if it's lossy algorithm is worse than other available algorithms?
Like
Osxbytes-Dev
Osxbytes-Dev
05 June 2014
What 'same codec'? Libav/ffmpeg is not a codec. Not sure where you get this. Libav/ffmpeg is a collection bundled of the original codecs (flac, mp3, ogg, aac, h264, ..) This is not the place to explain what libav and ffmpeg actually is. But I suggest reading ffmpeg.org
Like (1)
Big Johnson
Big Johnson
05 June 2014
And since they were talking about libavcodec when they mentioned psychoacoustic models, then obviously they were referring to one or more of the lossy codecs in the "collection." Your FLAC codec may be the same as XLD's, but evidently the lossy codecs in the libavcodec you use are lesser quality than "most other codec implementations." Again, I'm not the one who said it - take it up with the person who wrote the article if you disagree, I'm only quoting them.
Like
Big Johnson
Big Johnson
05 June 2014
It's very simple: I've tried both, XLD is better and it's free. I doubt anyone really needs the extra compression levels to save 1/5 of a MB per track.
Like
piquadratpi2
16 April 2014
After I contacted the developer he immediately fixed some problems with the cue-file for flac-files. Now all works here like it should and iSonics is now my favourite in converting music files. It is very fast, stable and runs without problems on 10.9.2. And the results are great! Using the integrated metafile-editor is easy and reduces the work in iTunes for me. A big thanks again to the developer!
Like (4)
Version 1.6.3
Jazzyguy
09 March 2014
Another GREAT version. This version is perfect in every way. It fills my needs for a good and efficient converter.
Like (3)
Version 1.6.1
Big Johnson
08 February 2014
Needs improvement, especially more options. There is no option to set the compression level for FLAC, and that's a huge problem for me, since I always choose level 8 for smallest file size. I also don't like the selections for choosing the file output location and format: When I set it to "convert to same folder as source," it does not do this properly - it SHOULD place the output files in the source folder, but instead it creates a new folder with the artist's name in the source folder, then a subfolder with the album name, and then finally the output files are placed in that folder. It's impossible to name tracks as I usually do with other apps: I want the track number followed by a period and a space, then the track name, like this: 1. Name The closest I can get is one of these formats: 1-Name 1 - Name This means I must waste time renaming every track after conversion. Tracks cannot be added via the context menu. With other apps, I can select some tracks, then right click and choose to open with the app. But nothing happens when I choose to open with iSonics. Therefore I'm forced to either drag files into iSonics, or use the Add button. On a positive note, I have a bunch of wma files that XLD and Switch were both unable to convert (Switch's support confirmed there is a bug), but iSonics was able to successfully convert, although not without problems: After successfully converting one or two wma files, I'd delete them from iSonics and drag one or both into iSonics again to test another conversion, but several times I received an error message: "An exception of class NilObjectException was not handled. The application must shut down." After re-opening iSonics, I was able to add the files and covert, but then it happened again shortly thereafter. Unfortunately, I don't know what level of FLAC they were converted to. There is also no help file or tooltips, and those would be very helpful because this app has options I haven't seen before, such as FLAC options "LPC algorithm" and "search method." Although there's no explanation for how the Merge feature is supposed to work, it was easy to figure out, and worked flawlessly on the two wma files I merged to one FLAC file as a test.
Like (1)
Version 1.5.3
Bleech-Jef
07 February 2014
Easy to use and fast converting (uses all available CPU cores when selected in the preferences). Though I only use this for FLAC to AAC it can handle most popular formats too.
Like
Version 1.5.3