VSDSP Forum

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 ...

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 ...

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...

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...

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...

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...

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...

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

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...

Hello! Here is an updated version of FTOREV.DL3, and completely new driver FTOREV23.DL3. The FTOREV.DL3 driver has a new option "-r", which tells, in milliseconds, the delay before the first reflection. By using larger values, it is possible to create effects that are like the back well of a long ha...