Search found 1131 matches

by Henrik
Wed 2019-04-17 12:07
Forum: VS1005 and VSOS Software
Topic: Latest VS1005 Amp Board Firmware (1.02) available here.
Replies: 4
Views: 2261

Re: Latest VS1005 Amp Board Firmware v1.02

Oh, please note that the new version of AmpBConf of the previous message is not yet part of the VSOS 3.57 Root Images and Libraries package because that was released already a week ago. So, if you want the new functionality, download AmpBConf.dl3 from here until the next VSOS release's Root Images a...
by Henrik
Wed 2019-04-17 11:59
Forum: Slave Decoder Applications
Topic: VS1003 + TPA3128D2 (Class D)
Replies: 2
Views: 69

Re: VS1003 + TPA3128D2 (Class D)

Hello! The single-ended full-scale sine output from VS1003 at full output volume (register SCI_VOL = 0x0000) is around 1500 mVpp so your value of 260 mVpp seems very low. When connecting to a differential amplifier you can connect Left output to one terminal and Right output to the other terminal, a...
by Henrik
Wed 2019-04-17 11:49
Forum: VS1005 and VSOS Software
Topic: VS1005 4-channel HiRes Recorder
Replies: 17
Views: 2364

Re: VS1005 4-channel HiRes Recorder

Hello Scott! Well explained with sufficient detail. Especially significant are the details on bypassing the file system, using the battery backup ram (which we are using - now to schedule turning the device on and selecting FM station, SD audio file playback, etc), and how you overcame FAT32 while w...
by Henrik
Tue 2019-04-16 13:39
Forum: VS1005 and VSOS Software
Topic: Latest VS1005 Amp Board Firmware (1.02) available here.
Replies: 4
Views: 2261

Re: Latest VS1005 Amp Board Firmware v1.02

Hello! Here is a minor update for VSOS 3.57 that we released just a few days ago. One change is that the solution AmpBConf included in this package can now be customized so that the user can tell which pin acts as the SD card's power regulator control pin. So, while the default is still 0x07 for GPI...
by Henrik
Fri 2019-04-12 12:14
Forum: Microcontroller Software
Topic: OggInsert: Add comments to Ogg Vorbis files with microcontroller
Replies: 0
Views: 2556

OggInsert: Add comments to Ogg Vorbis files with microcontroller

Hello! There have occasionally been questions by our customers whether it would be possible to add custom comments to Ogg Vorbis files. Our ICs don't currently have direct support for this, but attached to this message is a program called OggInsert, written in standard ANSI C, which reads an Ogg Vor...
by Henrik
Thu 2019-04-11 10:42
Forum: VS1005 and VSOS Software
Topic: VS1005 4-channel HiRes Recorder
Replies: 17
Views: 2364

Re: VS1005 4-channel HiRes Recorder

Hello Scott! Nice to hear from you after a long pause! You have put out a proper salvo of good questions! Let's see if I can answer them properly. This is going to be a long and involved message; I hope I can make my answers clear. First, let me explain how the HiRes Recorder manages to buffer its d...
by Henrik
Thu 2019-04-11 8:12
Forum: VS1005 and VSOS Software
Topic: MP3Model/MP3 Codec file seeking behaviour
Replies: 15
Views: 234

Re: MP3Model/MP3 Codec file seeking behaviour

Hello!
Passionate Jaguar wrote:
Wed 2019-04-10 22:03
This behavior also drove us to look at Oog Vorbis. Customers prefers mp3. Is this new update also now part of VSOS3.57?
That's a positive: the VSOS 3.57 libraries package contains the updated decmp3.dl3 which has the fast rewind function.

Kind regards,
- Henrik
by Henrik
Wed 2019-04-10 15:08
Forum: Microcontroller Software
Topic: Patches and OGG Recording
Replies: 1
Views: 72

Re: Patches and OGG Recording

Hello!

Are you still having this issue, or has it solved itself?

Kind regards,
- Henrik
by Henrik
Wed 2019-04-10 13:40
Forum: VS1005 and VSOS Software
Topic: Latest VSOS Kernel (3.57) available here.
Replies: 93
Views: 46509

Root Images and Libraries with Source Code for VSOS 3.57

Hello! Attached to this message are the Root Images and Libraries with Source Code and Documentation for VSOS 3.57. There are some new exciting programs, particularly the FM Stereo Radio Noise Killer which, as the name implies greatly, enhances FM Radio Stereo reception. There is also a Reverb Echo ...
by Henrik
Wed 2019-04-10 10:55
Forum: VS1005 and VSOS Software
Topic: Latest VSOS Kernel (3.57) available here.
Replies: 93
Views: 46509

Re: Latest VSOS Kernel (3.57) available here.

Dear Forum Members, attached to this message is a new VSOS 3.57 for Internal and External SPI Flash. The new VSOS is a slight modification of the previous one, the main difference being that a regression has been fixed. This regression would break fopen("D:*", "rb#5") style calls, and programs depen...