Search found 22 matches

by Coltfish
Sat 2011-11-26 18:27
Forum: Microcontroller Software
Topic: Spectrum Analyzer Plugin - strange behavior
Replies: 2
Views: 2316

Re: Spectrum Analyzer Plugin - strange behavior

Hello pasi, thank you for your detailed answer. (although that's not exactly the type of information I was hoping for ;) ) What I did not quite understand from your post is: do the hardware limitations of the vs1053b not allow for a more precise analysis or is just the present plugin currently confi...
by Coltfish
Tue 2011-11-22 23:30
Forum: Microcontroller Software
Topic: Spectrum Analyzer Plugin - strange behavior
Replies: 2
Views: 2316

Spectrum Analyzer Plugin - strange behavior

Hi all, I did some testing of the spectrum analyzer plugin today and I'm not sure, if the results I am receiving do make sense. My setup: vs1053b with patch package 1.80 + spectrumAnalyzerAppl1053b-2.plg loaded. What I tested: I created some stereo test tone mp3 files with single sine waves of fixed...
by Coltfish
Mon 2011-06-27 18:20
Forum: DSP and Audio Software
Topic: How to generate a short Beep sequence as user feedback?
Replies: 6
Views: 3017

Re: How to generate a short Beep sequence as user feedback?

Hello, that's something, I'm also interested in. Looks like the PCMMixer Plugin which was recently uploaded is what we could use to mix "user response sounds" into the output signal. Might be possible to generate PCM-data "on the fly", so it would not consume lots of memory. But we did not test this...
by Coltfish
Thu 2011-06-09 20:28
Forum: Microcontroller Software
Topic: How to setup VS1053 ADMon EQ Plugin
Replies: 11
Views: 4637

Re: How to setup VS1053 ADMon EQ Plugin

Hi pasi, I'm happy that you did not lose sight of this issue! To answer your question: It works pretty good! Tested with 48 kHz Sample rate, Stereo and fixed gain, audio quality is crystal clear and reasonable spectrum analyzer values can be read out at 20 Hz without any troubles. Tone and volume co...
by Coltfish
Mon 2011-05-16 22:31
Forum: Microcontroller Software
Topic: How to setup VS1053 ADMon EQ Plugin
Replies: 11
Views: 4637

Re: How to setup VS1053 ADMon EQ Plugin

Hello, we did some further investigations, showing that the distortion of the output signal gets worse with higher sample rates. At 8000 Hz sample rate the input signal is still distinguishable (although with bad quality...) but gets more and more consumed by the distortions with increasing sample r...
by Coltfish
Fri 2011-05-13 13:57
Forum: Microcontroller Software
Topic: How to setup VS1053 ADMon EQ Plugin
Replies: 11
Views: 4637

Re: How to setup VS1053 ADMon EQ Plugin

Hello Pasi, thanks for your advice, but we already changed the CLOCKF-value showing no effect. We run the vs1053 with CLOCKF = 0x8800, but even with CLOCKF = 0x9BE8 the loopback does not work. So here is our complete setup that is done following the device hardreset. The plugin code was taken from t...
by Coltfish
Thu 2011-05-12 10:04
Forum: Microcontroller Software
Topic: How to setup VS1053 ADMon EQ Plugin
Replies: 11
Views: 4637

Re: How to setup VS1053 ADMon EQ Plugin

Hi Panu, you were right, there was a problem with the MIC preamp. For some reason the setup procedure was not successful what was revealed when reading back the SCI_MODE register and the SM_LINE_IN bit was still cleared. After modifying the setup the plugin is working pretty good! Nice job! But, loa...
by Coltfish
Tue 2011-05-10 11:02
Forum: Microcontroller Software
Topic: How to setup VS1053 ADMon EQ Plugin
Replies: 11
Views: 4637

Re: How to setup VS1053 ADMon EQ Plugin

Hi can I see your program for ADPCM please Do you use Vside ? thanks Hi, the vs1053 is used as a co-processor, not stand-alone, so there is no need to work with VSIDE. What program do you mean? We just load the plugin and set it up like shown in my first post. We only need the vs1053 to route the s...
by Coltfish
Tue 2011-05-10 10:37
Forum: Microcontroller Software
Topic: How to setup VS1053 ADMon EQ Plugin
Replies: 11
Views: 4637

Re: How to setup VS1053 ADMon EQ Plugin

Hi, LINE1 + LINE2 are used for receiving a stereo signal (from a FM-Tuner IC). The exact hardware was used with the former ADPCM recording mode with great results. So the hardware should be fine. SM_LINE_IN (bit 14) in SCI_MODE is set before setting up the plugin, hence the MIC preamp should be disa...
by Coltfish
Mon 2011-05-09 22:48
Forum: Microcontroller Software
Topic: How to setup VS1053 ADMon EQ Plugin
Replies: 11
Views: 4637

How to setup VS1053 ADMon EQ Plugin

Hello, I tested the ADMON EQ Plugin some days ago, because the feature description sounds exactly like what we desperately need for our application. Although the plugin basically works, we are facing some problems. First, here is the setup which is performed after setting the SM_LINE bit in the MODE...