Raspberry Pi 2
| Date | 2015-06-02 18:54 |
| From | Roger Kelly |
| Subject | Raspberry Pi 2 |
| Attachments | None None |
Does anyone have any experience to know if there is a performance improvement
for Csound on the newer Raspberry Pi2 vs the original Raspberry pi? |
| Date | 2015-06-02 19:02 |
| From | Richard |
| Subject | Re: Raspberry Pi 2 |
| Attachments | None None |
|
Certainly there is! The Pi 2 is about 6 times faster. I did some
tests with large piano soundfonts. The previous Pi had some trouble with that, but not the Pi 2... Richard On 02/06/15 19:54, Roger Kelly wrote:
|
| Date | 2015-06-02 19:19 |
| From | Paul Batchelor |
| Subject | Re: Raspberry Pi 2 |
| Attachments | None None |
Yup. A little while ago I began building some performance tests for the Pi, and they definitely show improvement. Richard - does that soundfont happen to be publicly available? -P On Tue, Jun 2, 2015 at 2:02 PM, Richard <zappfinger@gmail.com> wrote:
|
| Date | 2015-06-02 19:42 |
| From | Roger Kelly |
| Subject | Re: Raspberry Pi 2 |
| Attachments | None None |
Are you using a USB audio card with it? How is the response time? On Tue, Jun 2, 2015 at 1:02 PM, Richard <zappfinger@gmail.com> wrote:
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| Date | 2015-06-02 19:44 |
| From | Richard |
| Subject | Re: Raspberry Pi 2 |
| Attachments | None None |
|
Paul, I got it from the web, so it should be publicly available. The name is "acoustic_piano_imis_1.sf2", about 34 Mb. Richard On 02/06/15 20:19, Paul Batchelor
wrote:
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| Date | 2015-06-02 19:51 |
| From | Richard |
| Subject | Re: Raspberry Pi 2 |
| Attachments | None None |
|
Yes, I am using USB audio. Focusrite Scarlett 2i2 and a cheaper one.
The response time is reasonably good, but probably depends more on
the midi and rendering part than the audio response. The only
problem with the Scarlett is that the audio in signal is distorted,
so I cannot use it as an audio in device, unfortunately... Richard On 02/06/15 20:42, Roger Kelly wrote:
|
| Date | 2015-06-02 20:20 |
| From | Bernt Isak Wærstad |
| Subject | Re: Raspberry Pi 2 |
| Attachments | None None |
The Behringer UCG102 and UCA222/202 are cheap, small and have worked nicely with the previous versions of the Pi. I've only briefly tested it with the Pi2, but didn't see or hear anything that would suggest anything has changed for the worse. Considering the price, I found the sound quality to be surprisingly good and we managed to get quite low latency (buffer size of 128) with full duplex audio and basic processing (most pvs-opcodes where to demanding). On the previous versions of the Pi this meant forcing the USB to act as 1.1 only. I'm going to do a more proper test of the Pi2 soon - can report back our findings. On 2 June 2015 at 20:51, Richard <zappfinger@gmail.com> wrote:
Mvh.
Bernt Isak Wærstad |
| Date | 2015-06-02 21:39 |
| From | luis jure |
| Subject | Re: Raspberry Pi 2 |
el 2015-06-02 a las 20:44 Richard escribió:
> Paul, I got it from the web, so it should be publicly available.
> The name is "acoustic_piano_imis_1.sf2", about 34 Mb.
to be found at http://freepats.zenvoid.org/sf2/ :
http://freepats.zenvoid.org/sf2/acoustic_piano_imis_1.sf2
there's also a (bigger) soundfont with samples from the Yamaha Disklavier
Pro:
http://freepats.zenvoid.org/sf2/acoustic_grand_piano_ydp_20080910.sf2
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