Search found 1105 matches

by Henrik
Fri 2018-10-05 8:08
Forum: VS1005 and VSOS Software
Topic: Guitar Amplifier simulator GuitAmp.dl3
Replies: 0
Views: 54

Guitar Amplifier simulator GuitAmp.dl3

Hello all! It is with great pleasure I present you an all-new signal processing algorithm: the Guitar Amplifier Simulator GuitAmp.dl3. GuitAmp is a parametric distortion DSP algorithm that lets the VS1005 run different stages of amplification, distortion, and equalization, to simulate an electric gu...
by Henrik
Mon 2018-09-03 11:04
Forum: VS1005 and VSOS Software
Topic: VS1005 HiRes Recorder
Replies: 8
Views: 1176

Re: VS1005 HiRes Recorder v0.51

Hello! Attached to this message is the VS1005 HiRes Recorder release 0.51. Hope you enjoy it! We have also just released the VS1005 BreakOut Board Mark II, which supports the recorder. It is available from here: http://www.vlsi.fi/en/support/evaluationboards/vs1005breakoutboardmk2recorder.html Kind ...
by Henrik
Thu 2018-08-09 14:17
Forum: VS1005 and VSOS Software
Topic: Updated AAC Decoder Driver decaac.dl3
Replies: 1
Views: 186

Updated AAC Decoder Driver decaac.dl3

Hello! Wew have a new version of the AAC decoder. It is an early test release that has support for playing MPEG-DASH (Dynamic Adaptive Streaming over HTTP) AAC files. To try the decoder, unzip the attached file decaac.zip, then copy the resulting decaac.dl3 to your S:SYS/ directory. If you try this ...
by Henrik
Thu 2018-07-19 11:32
Forum: VS1005 and VSOS Software
Topic: Multiple SD cards with HiRes Board
Replies: 7
Views: 336

Re: Multiple SD cards with HiRes Board

Hello! Yes, we have made an 8 SD card daughterboard to the VS1005 Developer Board. The HiRes recorder for that board is under debugging at the moment. I expect we can release the board and software in late August. It contains 8 microSD connectors and our 4 Mbit SRAM IC VS23S040 for buffering. We hav...
by Henrik
Tue 2018-06-12 11:19
Forum: VS1005 and VSOS Software
Topic: FM stereo radio noise killer driver
Replies: 0
Views: 335

FM stereo radio noise killer driver

Hello! We have something new and exciting for everyone using the FM radio receiver of VS1005, namely the FM Stereo Radio Noise Killer ! Because of the way stereo information is transmitted on FM radio, stereo reception is always more suscept to white noise and other artifacts than mono. A way to red...
by Henrik
Wed 2018-05-23 13:42
Forum: VS1005 and VSOS Software
Topic: Example source code for WAV PCM decoder DECWAV.DL3
Replies: 0
Views: 191

Example source code for WAV PCM decoder DECWAV.DL3

Hello! So far our audio decoders, like MP3 and Ogg Vorbis have been all closed source. While this is necessary for us, it makes it difficult for third parties to create their own audio decoders because there really are no examples on how to do this. To help with the issue, we have created a simplifi...
by Henrik
Thu 2018-05-17 10:18
Forum: DSP and Audio Software
Topic: 24-bit wav issues vs1005 hiRes
Replies: 4
Views: 389

Re: 24-bit wav issues vs1005 hiRes

Hello Rob! VS1005 audio drivers support 32-bit or 16-bit audio. There is no 24-bit option. If you want to record to a file that is 24 bits, then you need to set the audio drivers to 32-bit mode, then strip and rearrange the bytes to the little-endian format required by RIFF files. Below you will fin...
by Henrik
Thu 2018-05-17 9:16
Forum: VS1005 and VSOS Software
Topic: ENCMP3 Driver not loading
Replies: 3
Views: 214

Re: ENCMP3 Driver not loading

Hello! I have found the reason and I have a recommended solution to your problem. Open up the VSOS 3.55 solution, then open the file transient.c. Find the following line: SymbolAdd("_encMAlignBitsToByte", (void *)1, (int)EncMAlignBitsToByte); Change it to the following (lower case 'e' changes to upp...
by Henrik
Thu 2018-05-17 8:34
Forum: VS1005 and VSOS Software
Topic: ENCMP3 Driver not loading
Replies: 3
Views: 214

Re: ENCMP3 Driver not loading

Hello!

I can confirm your issue.

Heikkij gave you a solution, and you may use that to go around the issue for now, but unfortunately that solution will make the driver ROM-specific. I will try to get you a ROM-independent solution as quickly as possible.

Kind regards,
- Henrik
by Henrik
Wed 2018-04-25 9:36
Forum: VS1005 and VSOS Software
Topic: Reverb / Echo Generator for VS1005
Replies: 3
Views: 326

Re: Reverb / Echo Generator for VS1005

Hello! I prepared two examples to show the effect of the new First Reflection option "-r". I used the same "Heights" speech sample from the earlier version. First, there is an example with the pre-echo delay set to the minimum value, 2 ms. All parameters for Heights_4.mp3: First reflection: 2 ms Roo...