[opensuse] ffmpeg and conversion accuracy
I just started experimenting with ffmpeg and was wondering if the sound quality is maintained during conversion. I converted an ogg file to mp3 and see the mp3 is smaller. Did I lose audio quality in the process? tnx jk -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 08/23/2015 02:45 PM, James Knott wrote:
I just started experimenting with ffmpeg and was wondering if the sound quality is maintained during conversion. I converted an ogg file to mp3 and see the mp3 is smaller. Did I lose audio quality in the process?
tnx jk
Forgot to mention, I got the command from this site: http://linuxconfig.org/ffmpeg-audio-format-conversions And used the sample command with the appropriate file name: ffmpeg -i audio.ogg -acodec libmp3lame audio.mp3 tnx jk -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 23/08/15 20:45, James Knott wrote:
I just started experimenting with ffmpeg and was wondering if the sound quality is maintained during conversion. I converted an ogg file to mp3 and see the mp3 is smaller. Did I lose audio quality in the process?
tnx jk
Hi Only you or the intended listener will know. I don't think we can tell can we? Can you hear any difference when you play the mp3? We do mp3 conversions a lot so not sure what you're asking. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 08/23/2015 02:52 PM, buhorojo wrote:
On 23/08/15 20:45, James Knott wrote:
I just started experimenting with ffmpeg and was wondering if the sound quality is maintained during conversion. I converted an ogg file to mp3 and see the mp3 is smaller. Did I lose audio quality in the process?
tnx jk
Hi Only you or the intended listener will know. I don't think we can tell can we? Can you hear any difference when you play the mp3?
We do mp3 conversions a lot so not sure what you're asking.
Is there any conversion loss when converting from one format to another? I know both mp3 and ogg are lossy formats, in that some inaudible(?) detail is removed to reduce file size, so I've already lost some audio quality in the original conversion from CD. Am I losing more in converting from ogg to mp3? Incidentally, I used ogg for most of the CDs, as I heard it was supposed to be superior to mp3. However, I have a Yamaha receiver that will only play mp3. My tablet and phone both play ogg as well as mp3. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 23/08/15 21:03, James Knott wrote:
Is there any conversion loss when converting from one format to another? I know both mp3 and ogg are lossy formats, in that some inaudible(?) detail is removed to reduce file size, so I've already lost some audio quality in the original conversion from CD. Am I losing more in converting from ogg to mp3?
Incidentally, I used ogg for most of the CDs, as I heard it was supposed to be superior to mp3. However, I have a Yamaha receiver that will only play mp3. My tablet and phone both play ogg as well as mp3.
Every conversion from one lossy format to another will result in further degradation to some extent, because the re-encoding will continue to make use of the new codec's ways of cutting out elements it considers less important. In that sense it's a bit like the digital equivalent to audio cassette tape dubbing. I'm not sure if some algorithms mitigate this effect when doing lossy -> lossy. Also there are many different settings and bitrates you can select for ogg, mp3 and some other codecs, so it depends on any options or parameters you set in the command. If you don't set any presumably it will use defaults. You should investigate what those are and try to ensure the new codec is at least as high quality as the old. gumb -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 2015-08-23 20:45, James Knott wrote:
I just started experimenting with ffmpeg and was wondering if the sound quality is maintained during conversion. I converted an ogg file to mp3 and see the mp3 is smaller. Did I lose audio quality in the process?
Absolutely yes, by definition. Whether you can perceive it, that's different. Both mp3 and ogg are lossy audio compressors. They both remove information from the audio stream so that it occupies less space, but /feels/ the same to the human ear+mind system. Thus, by definition, encoding in any of those loses data. Now, going by educated guess work. The converter can work by converting the data stream to an "audio" stream (so to speak). I mean, it regenerates the originally recorded audio data as best as it can approximate (because it is lossy, thus not all data was recorded). A second step would analyze this audio stream and, using its techniques for removing what the ear can not feel, compresses it again to another lossy format. Two lossy conversions chained. Thus, worse overall result. The only way to do that is that the converter copies the data from one to other format, just changing the "format". If legally possible at all. This is what I don't know. My guess is "no". Me, I would do no conversion at all, unless you need to play on a device that doesn't support the format you have. I would try to use the higher conversion quality settings possible and experiment. Which is why I compress to mp3, not ogg... :-( -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)
On 08/23/2015 03:11 PM, Carlos E. R. wrote:
A second step would analyze this audio stream and, using its techniques for removing what the ear can not feel,
I know that's the claim, but I can hear the difference in some recordings. For example, in The Beatles "A Day in the Life". there's some low level vocals in the middle that seem to disappear in the ogg file. I can also hear artifacts that have been added when creating the file. BTW, I use K3b when making ogg or mp3 files.
compresses it again to another lossy format. Two lossy conversions chained. Thus, worse overall result.
That may be the case when converting back to original and re-encoding. But what about taking the compressed data and then "repackaging" (for lack of a better term). Which does ffmpeg do? I suppose the only way to find out is to compare a converted file with one made from the source. However, beyond my ears, I have no way to do that. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 2015-08-23 21:21, James Knott wrote:
On 08/23/2015 03:11 PM, Carlos E. R. wrote:
A second step would analyze this audio stream and, using its techniques for removing what the ear can not feel,
I know that's the claim, but I can hear the difference in some recordings. For example, in The Beatles "A Day in the Life". there's some low level vocals in the middle that seem to disappear in the ogg file. I can also hear artifacts that have been added when creating the file. BTW, I use K3b when making ogg or mp3 files.
Well, you have a good ear and memory :-) Yes, what you say is absolutely possible. It depends on the selected quality when the ogg or mp3 was made, though.
compresses it again to another lossy format. Two lossy conversions chained. Thus, worse overall result.
That may be the case when converting back to original and re-encoding. But what about taking the compressed data and then "repackaging" (for lack of a better term). Which does ffmpeg do? I suppose the only way to find out is to compare a converted file with one made from the source. However, beyond my ears, I have no way to do that.
Yes, I understand what you mean. That was the doubt I expressed. If it is possible to convert from one to the other by changing just the container format. I think it is not possible, ogg can not use the same decompress algorithm as mp3. However... yes, you can verify. Convert both versions to wav or some non-lossy format, then load both into a sound editor capable of displaying the waveforms with accuracy, and compare them... visually, yes. That would be very interesting to do, I think ;-) -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 8/23/2015 12:44 PM, Carlos E. R. wrote:
Convert both versions to wav or some non-lossy format, then load both into a sound editor capable of displaying the waveforms with accuracy, and compare them... visually, yes.
I posted a Youtube up-thread, where a guy did exactly that, and then extracted the difference between the two as a separate sound file. Upon playing it, all you heard was the cymbals that the mp3 lost. However: Check your watch when making such comparisons, because encoders are not all equal and progress has been made in this area. And of course, without talking about the bitrates involved its a pointless discussion. - -- _____________________________________ - ---This space for rent--- -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAlXaJI0ACgkQv7M3G5+2DLIY5wCgmbBCgZPL8MJ41bf88XDfhXmg qdcAniO6gKk69Af3/1tjbSMEWToHSN+p =OFnX -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 08/23/2015 03:44 PM, Carlos E. R. wrote:
Well, you have a good ear and memory :-)
I have both the original CD and ogg or mp3 file. When I first noticed it, with that Beatles song, I went back to the CD to verify. There is most certainly a difference in that low level part. Perhaps the encoder figured it was too low level to be significant. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 2015-08-23 21:59, James Knott wrote:
On 08/23/2015 03:44 PM, Carlos E. R. wrote:
Well, you have a good ear and memory :-)
I have both the original CD and ogg or mp3 file. When I first noticed it, with that Beatles song, I went back to the CD to verify. There is most certainly a difference in that low level part. Perhaps the encoder figured it was too low level to be significant.
You have to encode at a higher quality. Now I remember, you said you used k3b. I'd suggest audex or asunder instead. Last time I used "audex" at "extreme quality", it seems. Previously I used grip. -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)
On 08/23/2015 04:18 PM, Carlos E. R. wrote:
On 2015-08-23 21:59, James Knott wrote:
Well, you have a good ear and memory :-) I have both the original CD and ogg or mp3 file. When I first noticed it, with that Beatles song, I went back to the CD to verify. There is most certainly a difference in that low level part. Perhaps the encoder
On 08/23/2015 03:44 PM, Carlos E. R. wrote: figured it was too low level to be significant. You have to encode at a higher quality.
Now I remember, you said you used k3b. I'd suggest audex or asunder instead. Last time I used "audex" at "extreme quality", it seems.
Previously I used grip.
Do those packages use the same codecs as K3b? I just installed both of those and noticed only a flac codec was added. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 2015-08-23 22:22, James Knott wrote:
On 08/23/2015 04:18 PM, Carlos E. R. wrote:
Do those packages use the same codecs as K3b? I just installed both of those and noticed only a flac codec was added.
Unsure. Audex is kde, and asunder seems gnome (and comes via packman only). You would have to compare the options they give to those that k3b give. I converted my collection some time ago, and since them I haven't bought new CDs... I did my comparison then. It is not only about bitrate, there are other options. I guess most of them are only available if you use the CLI. Was it "lame"? Grip allowed access to all of them. But it is no longer available/usable. -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)
On 08/23/2015 04:29 PM, Carlos E. R. wrote:
Do those packages use the same codecs as K3b? I just installed both of
those and noticed only a flac codec was added. Unsure. Audex is kde, and asunder seems gnome (and comes via packman only). You would have to compare the options they give to those that k3b give.
Again, those apps could be using the same codecs. I doubt they'd have their own. A quick glance through Software Management shows that to be the case. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 2015-08-24 00:46, James Knott wrote:
On 08/23/2015 04:29 PM, Carlos E. R. wrote:
those and noticed only a flac codec was added. Unsure. Audex is kde, and asunder seems gnome (and comes via
Do those packages use the same codecs as K3b? I just installed both of packman only). You would have to compare the options they give to those that k3b give.
Again, those apps could be using the same codecs. I doubt they'd have their own. A quick glance through Software Management shows that to be the case.
Again, it is not a question of codecs. Lame, for instance, uses none. And audex uses lame and other encoders. - -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iF4EAREIAAYFAlXaZDcACgkQja8UbcUWM1xUTAD/cUPFYp9tdaPVtwG/j/BYQbtq p3166latK3dFi3PCyrMBAIMlVomkXe+6fz0e1owRYrHSHNUxpkRdhElxC9DXrvre =9u4g -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 08/23/2015 08:24 PM, Carlos E. R. wrote:
Again, it is not a question of codecs. Lame, for instance, uses none. And audex uses lame and other encoders.
Codec is a generic term for conversion of audio or video formats. Whether the app uses it's own or not, it still has to follow the spec. Even those digital voice telephone channels used codecs 50 years ago. There are various specs which have to be followed. For example, the original telephone codec is now known as G.711. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 2015-08-24 02:55, James Knott wrote:
On 08/23/2015 08:24 PM, Carlos E. R. wrote:
Again, it is not a question of codecs. Lame, for instance, uses none. And audex uses lame and other encoders.
Codec is a generic term for conversion of audio or video formats. Whether the app uses it's own or not, it still has to follow the spec. Even those digital voice telephone channels used codecs 50 years ago. There are various specs which have to be followed. For example, the original telephone codec is now known as G.711.
Anyway, that is irrelevant. What matters is what options are being fed to lame, in the case of audex. I don't know what the other tools use. And bitrate is not the only option you can adjust, there are countless combinations. Have a look at the "lame" manual. - -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iF4EAREIAAYFAlXabxkACgkQja8UbcUWM1yCvgD/RTRJ78BdWrbjwWgyeh6UM1sP VHYu0rVcHuaPF1kAfx0A/Am3WNT8s8KEUswrIzqVWRl4Quf2dBxVp8BUFtm3OMPt =ITtl -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 8/23/2015 11:45 AM, James Knott wrote:
I just started experimenting with ffmpeg and was wondering if the sound quality is maintained during conversion. I converted an ogg file to mp3 and see the mp3 is smaller. Did I lose audio quality in the process?
tnx jk
Almost certainly you lost quality. Any conversion to a lossy encoding will lose quality, but I suspect you knew that. The key is to maintain at least as high a quality setting in the target format as you had in the source. Since MP3 is usually larger than the same quality Ogg, and since your mp3 is smaller, I suspect you lost even more quality than normal. You may or may not be able to here the difference, depending on the age of your ears, but still the loss is there. Google Music has standardized on 320k bps for mp3 music because it is scientifically known to exceed the range of human hearing (by at least half again), and therefore nobody can complain about quality. However the debate rages on about different encodings. Google 320 kbps vs ____ and you get a lot of hits. In general Ogg/Vorbis fairs decidedly better regarding the quality/bitrate ratio, allowing lower bit-rates. But jeeze, disk is cheap these days, so why bother chasing smaller files? Interesting short video on this subject https://www.youtube.com/watch?v=UoBPNTAFZMo -- _____________________________________ ---This space for rent--- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 08/23/2015 03:19 PM, John Andersen wrote:
But jeeze, disk is cheap these days, so why bother chasing smaller files?
Computer disk space is cheap, but not so in tablets and smart phones. In those devices, there is a hard limit, which cannot be expanded (many devices no longer have SD card slots. My phone is 16 GB and tablet 32, IIRC. at the moment, my music collection is about 3 GB. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 8/23/2015 12:26 PM, James Knott wrote:
On 08/23/2015 03:19 PM, John Andersen wrote:
But jeeze, disk is cheap these days, so why bother chasing smaller files?
Computer disk space is cheap, but not so in tablets and smart phones. In those devices, there is a hard limit, which cannot be expanded (many devices no longer have SD card slots. My phone is 16 GB and tablet 32, IIRC. at the moment, my music collection is about 3 GB.
Well, with either IOS or Android, you don't HAVE to have all your music on the device. (Unless you are trapped in a stingy data plan). Anyway, Jeff Attwood did a often cited Bitrate Experiment, whic gives clues for encoding: http://blog.codinghorror.com/the-great-mp3-bitrate-experiment/ -- _____________________________________ ---This space for rent--- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 08/23/2015 03:34 PM, John Andersen wrote:
On 8/23/2015 12:26 PM, James Knott wrote:
On 08/23/2015 03:19 PM, John Andersen wrote:
But jeeze, disk is cheap these days, so why bother chasing smaller files? Computer disk space is cheap, but not so in tablets and smart phones. In those devices, there is a hard limit, which cannot be expanded (many devices no longer have SD card slots. My phone is 16 GB and tablet 32, IIRC. at the moment, my music collection is about 3 GB.
Well, with either IOS or Android, you don't HAVE to have all your music on the device. (Unless you are trapped in a stingy data plan).
I like to have the same collection on both my phone and tablet. I also have some mp3s on a USB stick, which I can plug into my receiver. However, the reason for this question is the app I have on my tablet that allows me to play mp3s from my collection to the Yamaha receiver. However, it ignores ogg. I could redo all the CDs I have in ogg, but that would be a lot of work, though I suspect not as much work as trying to get Yamaha to support ogg. ;-)
Anyway, Jeff Attwood did a often cited Bitrate Experiment, whic gives clues for encoding: http://blog.codinghorror.com/the-great-mp3-bitrate-experiment/
Generally, I agree with him and have no use for the "golden ear" audiophiles, who typically have more money than brains. However, I have noticed, on some recordings, artifacts of the compression. I suspect a higher bit rate might reduce that, but can't be sure. Incidentally, I have been working with digital audio, going back 40 years, with PCM voice channels in telecom. About 30 years ago or so, compression was sometimes used, first with ADPCM and later the various G. codecs. Now, call quality is improving with HD voice. There are even some codecs that provide "broadcast" quality audio. https://en.wikipedia.org/wiki/Wideband_audio Also, I have a friend who insists vinyl provides better quality than CDs. ;-) He apparently doesn't understand things like dynamic range, frequency response etc. Or perhaps he gets a warm feeling from surface noise. :-) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 2015-08-23 21:56, James Knott wrote:
However, the reason for this question is the app I have on my tablet that allows me to play mp3s from my collection to the Yamaha receiver. However, it ignores ogg. I could redo all the CDs I have in ogg, but that would be a lot of work, though I suspect not as much work as trying to get Yamaha to support ogg. ;-)
I don't understand this part, sorry. The files are in the tablet, and then they are played in the tablet and the sound sent to the yamaha receiver, or are the files sent or streamed to the receiver, which then plays them? -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)
On 08/23/2015 04:22 PM, Carlos E. R. wrote:
On 2015-08-23 21:56, James Knott wrote:
However, the reason for this question is the app I have on my tablet that allows me to play mp3s from my collection to the Yamaha receiver. However, it ignores ogg. I could redo all the CDs I have in ogg, but that would be a lot of work, though I suspect not as much work as trying to get Yamaha to support ogg. ;-) I don't understand this part, sorry.
The files are in the tablet, and then they are played in the tablet and the sound sent to the yamaha receiver, or are the files sent or streamed to the receiver, which then plays them?
The files are sent, over my network, to the receiver, which plays them. It's the Yamaha Android app for my receiver. It generally works well, except it won't play oggs. It will list them, but the text is a bit dimmer than an mp3 file. The app is quite nice. I can turn on the receiver from my tablet, select sources, adjust the volume and more, even though the receiver is in another room. It also allows my phone or tablet to be a "media server". -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 2015-08-23 22:28, James Knott wrote:
On 08/23/2015 04:22 PM, Carlos E. R. wrote:
The files are sent, over my network, to the receiver, which plays them. It's the Yamaha Android app for my receiver. It generally works well, except it won't play oggs. It will list them, but the text is a bit dimmer than an mp3 file. The app is quite nice. I can turn on the receiver from my tablet, select sources, adjust the volume and more, even though the receiver is in another room. It also allows my phone or tablet to be a "media server".
Mmm. Yes, if the files are served to the receiver, it is this which has to to the decoding. Otherwise, the tablet would do the decoding and just sent the decoded audio to the speakers, typically over bluetooth. In this case, you can just change the player app in the tablet - for example, to VLC. -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)
On 08/23/2015 04:33 PM, Carlos E. R. wrote:
Yes, if the files are served to the receiver, it is this which has to to the decoding.
Otherwise, the tablet would do the decoding and just sent the decoded audio to the speakers, typically over bluetooth. In this case, you can just change the player app in the tablet - for example, to VLC.
Except Bluetooth doesn't have the range of my network. The tablet uses WiFi to my access point and Ethernet from there. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 8/23/2015 12:56 PM, James Knott wrote:
I like to have the same collection on both my phone and tablet. I also have some mp3s on a USB stick, which I can plug into my receiver. However, the reason for this question is the app I have on my tablet that allows me to play mp3s from my collection to the Yamaha receiver. However, it ignores ogg. I could redo all the CDs I have in ogg, but that would be a lot of work,
On the off chance you have a google account...(and don't already know about this) You can sign up for a Google Music. Its free. Put all your ripped (or purchased) music under one folder structure, with what ever sub folders meets your needs Install the Google Music Manager (free) (yes, Linux versions available), install, point it at your Music folder(s). Sit back and watch it upload everything. It supports mp3, aac (two formats), wma, flac,ogg, etc. See: https://support.google.com/googleplay/answer/1100462?vid=1-63575957747014651... It will convert them all to mp3 (320kbps). These will also be available instantly on your Android device or iPhone with the Google Play Music app. You can also download a complete copy of your music folder (to a new location) with all music converted to mp3 (320kbps). Note about the conversion: Google does not actually store YOUR copy of the tracks. It samples it enough to know _exactly_ what it is, then substitutes a 320kbps rip of its own. Early versions ha problems substituting "radio clean" versions for explicit versions but this problem is solved. If it can't find a match it will store yours. NOTE: All my music that I rip myself, or purchase from other sources (amazon etc) gets downloaded into my Google Music Folder in proper sub-folders. Then Google Music manager automatically uploads it in the background. You can play your music from any browser, or the google play music app on IOS or Android, or Download it to a computer, (or thumb drive). Pretty sure that Apple Music and Amazon provide substantially the same type of service (sans the format conversion). -- _____________________________________ ---This space for rent--- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 08/23/2015 04:47 PM, John Andersen wrote:
On 8/23/2015 12:56 PM, James Knott wrote:
I like to have the same collection on both my phone and tablet. I also have some mp3s on a USB stick, which I can plug into my receiver. However, the reason for this question is the app I have on my tablet that allows me to play mp3s from my collection to the Yamaha receiver. However, it ignores ogg. I could redo all the CDs I have in ogg, but that would be a lot of work, On the off chance you have a google account...(and don't already know about this)
You can sign up for a Google Music. Its free. Put all your ripped (or purchased) music under one folder structure, with what ever sub folders meets your needs
Install the Google Music Manager (free) (yes, Linux versions available), install, point it at your Music folder(s).
I'll have to look into that.
Sit back and watch it upload everything.
It supports mp3, aac (two formats), wma, flac,ogg, etc. See: https://support.google.com/googleplay/answer/1100462?vid=1-63575957747014651...
It will convert them all to mp3 (320kbps). These will also be available instantly on your Android device or iPhone with the Google Play Music app.
You can play your music from any browser, or the google play music app on IOS or Android, or Download it to a computer, (or thumb drive).
Pretty sure that Apple Music and Amazon provide substantially the same type of service (sans the format conversion).
My work phone is an iPhone 6, but I wouldn't be using it for this. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 08/23/2015 04:47 PM, John Andersen wrote:
You can also download a complete copy of your music folder (to a new location) with all music converted to mp3 (320kbps).
I copied the mp3s to my tablet and they work OK with the Yamaha app. I'll keep the ogg files on my phone, as it has only 16 GB, vs 32 on my tablet. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On Sun, 2015-08-23 at 14:45 -0400, James Knott wrote:
I just started experimenting with ffmpeg and was wondering if the sound quality is maintained during conversion. I converted an ogg file to mp3 and see the mp3 is smaller. Did I lose audio quality in the process?
MP3 & OGG both utilize lossy compression algorithms - meaning they throw data away to achieve compression rates. So, YES, it is an absolute mathematical certainty that you loose data, and thus you loose quality. No question, no doubt, and no way around it. But does it matter? Apparently not, otherwise everyone wouldn't be using MP3 files. It probably does matter at some point as you throw away more and more data [which would occur every time someone reformats/recreates/etc... the file]. But when is up to the listener. -- Adam Tauno Williams <mailto:awilliam@whitemice.org> GPG D95ED383 Systems Administrator, Python Developer, LPI / NCLA -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
participants (6)
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Adam Tauno Williams -
buhorojo -
Carlos E. R. -
gumb -
James Knott -
John Andersen