Amiga 030 can play MP3 and even with Internet radio

[nikosidis]

Things that was not possible before are now thanks to Maynaf's magic. I been playing with mpega.libs and nothing is close to his Mpega.lib just like his picture viewer. We should give him a medal

https://www.youtube.com/watch?v=hA9yF7TIvKQ

[kamelito]

Any link to his lib?

[lmimmfn]

Originally Posted by kamelito

Any link to his lib?

its in the video description - http://meynaf.free.fr/pr/mpega030.lzx

[nikosidis]

I donated to Maynaf now for this library. Just think what this could have meant back in the day. Even now there are still some of us using Amiga so it is very appreciated.

[amiman99]

I'm sure that I was able to play MP3 on my A1200 Blizzard IV 50MHz with similar settings back in the 2000s.
The trick was to use mono and 22khz, or maybe 11khz, I forgot the details.
I can try again and see if there is any difference with this new library.

[nikosidis]

Amiman: With just playing MP3 files, I would say yes. Try with network, AmigaAMP and streaming and I would say no. If I just play MP3 files I can change to high quality settings in AmigaAMP. If you read AmigaAMP docs. this setting is what is recommended for 040.
Believe me, I have tried the different versions. Even the FPU version does not make much difference. Frankly I don't think I notice any difference from standard to FPU version.

[amiman99]

I never tried streaming over the internet, but I would like to have a better quality playback from HD.
I did notice that the video shows 160kbps and 192kbps streams, so it looks like it's better, because I could only play 128kbps MP3s.

[nikosidis]

I made another video just playing MP3 and you can see the high quality settings.

[ Show youtube player ]

[nikosidis]

This is taken from the readme in the player "MPEGAHI" I'm using here.
As you can see in the video I'm using higher setting for Layer 3 than recommended at the time for 040/40.
Look at Layer 3. The first song I play is stereo but the other file I play is mono but should not matter much.

| Layer 1/2 | Layer 3
Processor | Quality|FreqDiv|Mono | Quality|FreqDiv|Mono
----------+--------+-------+-----+--------+-------+-----
68040-40 | high | 1:2 | off | medium | 1:2 | on
68060-50 | high | 1:1 | off | high | 1:1 | off

[Weaselrama]

Originally Posted by amiman99

I never tried streaming over the internet, but I would like to have a better quality playback from HD.
I did notice that the video shows 160kbps and 192kbps streams, so it looks like it's better, because I could only play 128kbps MP3s.

When I was experimenting with different FS-UAE Amiga builds, I ran an A1200 with an 030. I noticed, and I was using AMPlifier and not AmigaAMP at the time, that streaming from the Internet was different from playing an Mp3. I could switch to stereo without latency issues with a 192kbps stream whereas I had to switch back to mono for my mp3 collection. I can't explain why this was the case.

Since then, I run an A4000 setup with a 060 so all my audio issues vanished except I can't do above 22,050 or I do get latency. Otherwise, full bit-rate and in stereo. Not "audiophile" quality - but who cares? Anyway, if you haven't tried Internet Radio, here's a few websites for you. These should come up on iBrowse with no issues, albeit slowly, on your Amiga, if you have it setup with TCP/IP:

https://www.internet-radio.com/

http://www.suppertime.co.uk/blogmywi...rk-radio-urls/

[nikosidis]

Weaselrama: Could it be that the streams where low quality like 92kbps and your collection are something like 320kbps?

I have not tried Amplifier. I will try it. Thanks for the suggestion. IBrowse I'm pretty sure will be to slow but I can try.

I'm using the link nr.2 you provided. That is where I got my streams

[Weaselrama]

Originally Posted by nikosidis

Weaselrama: Could it be that the streams where low quality like 92kbps and your collection are something like 320kbps?)

What I meant was that some of my oldest Mp3s are 128, 160, and 192kbps and I had to play them in Mono using that setup. However, I could play 192 and 256kbps streams in stereo. Mind you, this was using 11,025.

You might want to stick with AmigaAMP. The latest AMPlifier update, which really improved it, was part of the Boing Bag 3-4 update to OS3.9.

[nikosidis]

Ok, that is little low samplerate. It is still strange you have to go mono when not streaming. I tried AMPlifier from Aminet, not the version from OS 3.9 update. I for sure stick with AmigaAMP
I'm on my laptop now while my A1200 play internet radio like a dream It never crash, stall or anything.

[Misclegend]

the 030 can't play mp3 files at 44100hz or 22000hz in stereo
not even using meynaf mpega.library
that's fake

[meynaf]

Originally Posted by Misclegend

the 030 can't play mp3 files at 44100hz or 22000hz in stereo
not even using meynaf mpega.library
that's fake

The settings in the video show 22050 frequency limit and mono output.

[nikosidis]

I now found the holly grail of Amiga audio playback
Songplayer using Paula 14 bit directly, no AHI.
Sure MP3 is played back mono but it sound real good.
AmigaAMP will still be used for streaming.
Wav files can be played back in stereo full quality and system is not much affected.

Meynaf: How is FLAC playback. Is it as heavy on the CPU as MP3?

[meynaf]

Originally Posted by nikosidis

Meynaf: How is FLAC playback. Is it as heavy on the CPU as MP3?

It's a different situation. With MP3 due to the lossy nature you can reduce quality to gain speed. With FLAC you can't, it's lossless and not designed for this.
So even though the decoding isn't as heavy, there is nothing you can do if your cpu isn't fast enough except reencoding the file with less aggressive settings.
At the end, the 030 can play many 44100 16 bit stereo files but not all.

[jizmo]

Even your most basic 128kbps MP3 was not playable as is on 030/50, you'd have to force it to mono 22kHz and even then you'd better buffer it in for a good 30 seconds to make sure it won't start to stutter midway.

Sure, you always could sort of play MP3s on 030, but it was a far cry from being usable in normal use. Ripping and converting to IFF samples was always the smarter way to go on as a song in 22kHz mono would not take that much more space from HDD, and you could maintain full multitasking while playing them back, even in 14-bit.

[meynaf]

Originally Posted by jizmo

Even your most basic 128kbps MP3 was not playable as is on 030/50, you'd have to force it to mono 22kHz and even then you'd better buffer it in for a good 30 seconds to make sure it won't start to stutter midway.

After optimization of mpega.library i could play even 320kbps with quality set to high on my B1230. Ok, mono 22khz and not too much multitasking. But no stutter with DT2's mpega player and it starts immediately.

[nikosidis]

That is exactly my experience to. With Meynafs Mpega.lib higher kbps is no problem. The file start to play almost immediatly and it is no stutter. Jizmo mention it is a good idea to convert to AIFF and that is very smart unless you like to use internet radio, MP3 only.
With AIFF you get stereo and paula in full quality. I did make a video about that yesterday.

[ Show youtube player ]