WavBox User Manual
Contents
1. The volume is set to maximum when loop thru is activated To exit loop thru mode re power the unit or press the reset button iztech ltd unit 75 joseph wilson ind est millstrood road whitstable kent ct5 3ps t 01227 808 249 f 01227 266 689 sales iztech co uk www iztech co uk iztech WavBox Control Protocol The control protocol consists of a single byte ASCII command without a terminator Baud rate 9600 8 N 1 List of Commands Peay te craudio Zev B Plyte naudo us Pay te CBoudio us o aye tale us Pay ite OBoudio u 1 Play fe t8audio Zvay Play file 10audio_Z wav Play file 20audio_Z wav eado S 1 The Z in the filename refers to the Interruptible Flag see section on File Names for more details 2 Command can be sent as upper or lower case characters 3 Query Volume returns the following 0 for Max Volume 16 for Mid Volume 32 for Low Volume Mute for lowest volume anA Volume set via the push buttons will return values between O Max and 97 Min Each button push will increase or decrease value by 2 iztech Itd unit 75 joseph wilson ind est millstrood road whitstable kent ct5 3ps t 01227 808 249 f 01227 266 689 sales iztech co uk www iztech co uk iztech WavBox Status messages The RS232 port provides status messages such as current file playing and when a file finishes playing O2Zaudio n wav 04audio n wav QSaudio 1 WAV Qoaudio 1 w2. Button to play file O1audio_Z wav Reset gt S Looping playback Weess zc OF GMGLPWVBGRGL a Pwr On Mute Uu Controls Audio Out ae Amp On Status Playing Vol Vol Play EU wie Coan Audio Player modwy 9 cb iy ND OI OBS S Reset rhea ot LTE 2 iztech co uk ROTPETIUB 4S CRE GES G SP Ea aos LED will be lit while file is playing A K Connect link wire between input that you want to loop and ground Example will loop file 01audio_Z wav iztech ltd unit 75 joseph wilson ind est millstrood road whitstable kent ct5 3ps t 01227 808 249 f 01227 266 689 sales iztech co uk www iztech co uk WavBox RS232 controlled playback Baud rate 9600 8 N 1 LED will be lit while file is playing A PIR controlled playback with bridged amplifier When PIR triggers O1audio_n wav plays use non interruptible flag to prevent file from continuous triggering Normally Open Relay Output Relay Common 12v Power Ground CG Of G MG L P V V GR GL a Pwr On KE Mute Uu Controls ae Amp On Status Playing Vol Vol Play WavBOX Audio Player gt Reset tat S S ch ep i Ea ciN TSGvPETIVA5 CREGES G 29 JEN Change Amp mode to Bridged of G M G L P V V G R C L Pwr On Mute Uu Controls Amp On Status Playing Vol Vol Play Wav Elek 1 Audio Player Reset Katzen a w www iztech co uk SP LEDs Switch Input
3. WavBox Specification Power supply 12 24 vDC 2 5A maximum Amplifier rating Stereo 20 Watts 24v into 40 Bridged 40 Watts 24v into 8O Audio storage SD Card Audio file format WAV PCM IMA ADPCM PCM 16 and 8 bits any sample rate lt 48 kHz IMA ADPCM Any samplerate lt 48 kHz Digital Input 6 contact closure inputs for message selection 1 contact closure inputs for random file selection 1 contact closure inputs for sequential file selection 5 User interface contact closure inputs Digital Outputs Open collector output for playing status Open collector output for status currently unused Serial Connection RS232 9600 no parity 8 data bits 1 stop bits Dimensions Height 32mm width 118mm including mounting lugs length 75mm Housing Matt black steel enclosure with mounting flanges 2 Audacity www http audacity sourceforge net provide a cross platform audio editor converter which can produce files in the correct format iztech ltd unit 75 joseph wilson ind est millstrood road whitstable kent ct5 3ps t 01227 808 249 of 01227 266 689 sales iztech co uk www iztech co uk iztech WavBox Dimensions 3 penne a E UI iztech ltd unit 75 joseph wilson ind est millstrood road whitstable kent ct5 3ps t 01227 808 249 f 01227 266 689 sales iztech co uk www iztech co uk WavBox iztech Procedure for upgrading firmware o
4. WavBox WavBox is a compact low powered audio player with a built in 20Watt class D stereo amplifier that plays wav formatted audio files WavBox operates as a standalone audio player automatically booting and playing content from its on board SD card as soon as power is applied or controlled via its serial interface In addition it can also be configured to be trigged via 1 of its 6 digital inputs using either buttons or PIR s for example Its compact size and low power consumption makes the WavBox ideal for integration into interactive displays and audio guides Key Features e Stereo line level output e Stereo 20Watt per channel class D amplifier output e Mono 40Watts class D amplifier output when configured in bridging mode e Standalone playback from on board SD card of WAV formatted audio files e WAV PCM or IMA ADPCM file formats e Play Stop control via push button contact closure and RS232 e Volume control via push button contact closure and RS232 e Amplifier muting via contact closure e Audio Loop thru function accessed via push button contact closure and RS232 e 6 direct audio trigger digital inputs e Random play via contact closure input and RS 232 e Sequential play via contact closure input and RS232 e Status messaging via the RS232 interface e Volume feedback via RS232 command e Playback control of up to 20 messages via the RS232 interface iztech ltd unit 75 jos
5. av Qlaudio n wav stopped And at power up it sends the current firmware revision Iztech WavBOX Player v3 6 These messages are ASCII formatted and are followed by line feed n or SOA RS232 Connection 9 pin D Type Female WavBox RS232 Terminals O m See Baud rate 9600 8 N 1 The RS232 port on the WavBox player can be used for controlling the player it also provides status messages and is used for updating the firmware iztech Itd unit 75 joseph wilson ind est millstrood road whitstable kent ct5 3ps t 01227 808 249 f 01227 266 689 sales iztech co uk www iztech co uk iztech WavBox Connections Comection 10 terminat Audio terminal Comecon Fs Reeve e In cen Fs Grane je eoa Playing 0 oup je beo Saus Lev output fs pradio zvar fa e genug auto Znav fa tau Znav fe baud Znav fs tau zvar fe Random Play rome e Supply Ground Amplifier terminals Stereo connection 01 U04 IN INO olpny E e El B El e222222222 DNC Do Not Connect Bridged Connection Left speaker Speaker Left speaker Right speaker e 9 la Audio Input An audio input connection is provided on a 3 5mm jack _ aj ajajajvj sjndu youms TTT Ty PP 1 Do Not Connect iztech ltd unit 75 joseph wilson ind est millstrood road whitstable kent ct5 3ps t 01227 808 249 f 01227 266 689 sales iztech co uk www iztech co uk iztech
6. blip will be heard The volume can now be returned to the required setting The sequence input doesn t play The sequence the files are played are the order they were the files in the right order copied to the SD Card and not the reference in the file name On a newly formatted SD card copy each file individually to the SD card in the order you want them to play The file stops looping after a Some customers have noticed that a looping file will stop number of days weeks playing after an extended period of playing Fragmentation of the SD card can cause issues with looping files over an extended period to avoid this format your SD card before adding you final audio files to the card Document Version Changes Document Firmware Remarks Revision Version rel V3 6 e Reviseddocument layout es ae e Added hook up drawings l revG V3 6 e Improved volume adjustment while looping audio ee ee 2 Revised layout revF i V3 5 e Modified volume status message format reve V33 e Added additional RS232 commands gt ee ae e Revised layout revD V3 0 e Updated Images added e Minorupdatestotext reve M D e New PCB v2 1 Redesigned hardware adds additional features ee 1 e Revised enclosure revB V2 8 e Added RS232 control protocol ee a e Added command prompt firmware upgrade proceedure revA i V2 6 Initial release iztech ltd unit 75 joseph wilson in
7. d est millstrood road whitstable kent ct5 3ps t 01227 808 249 f 01227 266 689 sales iztech co uk www iztech co uk
8. eph wilson ind est millstrood road whitstable kent ct5 3ps t 01227 808 249 f 01227 266 689 sales iztech co uk www iztech co uk iztech WavBox Contents EE 1 TY AION Meshes cre E cies eins tse tion sass E 3 Suel e Tee ie E 4 File naming CONVOMU ON iceccscdctanadncecscistad GonssdveadacncindadsaadusatesiseeddeacadeanGodeontadtwadanatedesnacbonsiwonGedesmeasevsdveaSuemagennts 6 Audio e OU EE 7 ROMEO Edel E 8 Se COIS ISS n OE r 9 Roa 2 CONE tee 9 CONDECION corte ca a E E 10 PEC O EE 11 BO ASTONS aea E E T EEO 12 Procedure for upgrading firmware on a WavBox player 13 KNOW MET 14 D c ument Version RE EE 14 iztech ltd unit 75 joseph wilson ind est millstrood road whitstable kent ct5 3ps t 01227 808 249 f 01227 266 689 sales iztech co uk www iztech co uk iztech WavBox Operation The player can play WAV formatted files either PCM or IMA ADPCM which are stored on an SD card all files must be saved in the root of the card sub directories are ignored Inputs 1 to 6 provide trigger inputs to directly play files 1 to 6 Maintaining a closure on an input will loop the associated file Maintaining a closure on an input at power on will loop that file from power on The random input will play a random file from the SD Card The sequential input will play each file on the SD card in sequence Note The sequence the files are played are the order they were copied to the SD Card and not the refere
9. means that the command florea File ceprom ing no amu were pron window will not close when it ES SS Oe ec Se GE ST SE KB x 6 KB x 7 KB x 8 KB has completed the procedure WEE KB Ge KB S Ne PPE KB OXO IB OMAR NB command prompt short cut is Done Resetting chip ES included in the uniprom folder ESCHE E assumes running from C i ACO a LE iodoa o o z 6x1916 I5 8x101 Ip DREEM RE E c uniprom EE 269488144 The programmer will perform various Fe SE E S ei Pe ET rr Progamming and checks before opening the pedicel 8 i i C uniprom verifying stage eeprom img file and programming Ee ying stag and then verifying the installation Once complete reboot the player You may notice that the left right balance is incorrect after firmware update To correct this raise the volume to maximum when maximum is reached an audible blip will be heard The volume can now be returned to the required setting iztech Itd unit 75 joseph wilson ind est millstrood road whitstable kent ct5 3ps t 01227 808 249 of 01227 266 689 sales iztech co uk www iztech co uk iztech WavBox Known Issues Noise at the end of a file If meta data is added to a file the WavBox can interpret this as audio data Remove meta data from file to get around this Left right balance is incorrect To correct this raise the volume to maximum when maximum is after firmware update reached an audible
10. n a WavBox player A command line utility is available to program the firmware to a SPI EEPROM on the WavBox A copy can be found from at http www iztech co uk wordpress support click on the download site link browse to the WavBox section of the Iztech Web Downloads and within the firmware folder you can find the uniprom utility along with the latest firmware Just extract the uniprom zip file to a folder such as c uniprom The firmware image is called eeprom img which needs to be in the same folder If you use a COM port other than COM1 edit the uniprom bat file s p parameter The name of the file is always eeprom img Connect WavBox player RS232 connection to COM 1 on the computer see note above on how to select a port other than COM 1 Remove SD Card from the WavBox Remove the 4 screws securing the lid Move S8 Run Prog switch to the Prog position Reset board by pressing the reset button or removing and restoring power Move S8 Run Prog switch to the Run position Double click on the uniprom bat file to launch the programmer o You can also open a command SEH 13 Ce e tion 23 US_stdiolib page start 1186 size 134 relocs 37 prompt and run uniprom SPI _EEPROMMER soalh i CD lane A x PROM t aa dee CRDES CBxAB gt methods fF EE om A Pur D a t i t H from there using this method Ve ee EE ErasWMFreturned immediately probably this is an EEPROM chip Using 16 bit Waldres
11. nce in the file name Switches are provided for disabling the amplifier if you are using an external amplifier and for switching between stereo and bridged mode for the amplifier NOTE Power should be removed before changing these settings um Bridged d t Mode Stereo Push buttons are provided for e Play which will play each file on the card in sequence e A long press on Play button will stop playback e Volume control volume levels are stored after adjustment e Audio loop thru routes the Audio In jack to the WavBox output e Reset Restarts the player it is also used to exit loop thru mode These functions apart from Reset are also available on screw terminal connections LEDs are provided to indicate S0OS9So SC e The amplifier is active Amp On RECT LER EECA SL A e That a file is playing Playing Per On Bs NS Audio Out Bode Amp On Status Playing Ed let m Audio Player e Power Pwr On Vol Vol Play Reset iztech Itd unit 75 joseph wilson ind est millstrood road whitstable kent ct5 3ps t 01227 808 249 f 01227 266 689 sales iztech co uk www iztech co uk iztech WavBox Example Hook ups Push button IANO OSORIO controlled of GMOGLPWWBGRGL A Pwr On LS EES EYEE IE Amp On Status Playing Vol Vol Play WavBo xen Audio Player E izteci www iztech co uk TRG PS TSS 4 SSR S EG GS G LED will be lit while file is playing A K Push
12. s OH Tao P S TBs 8S SRS Be amp GC ESVAC WERT TAINS iztech ltd unit 75 joseph wilson ind est millstrood road whitstable kent ct5 3ps t 01227 808 249 f 01227 266 689 sales iztech co uk www iztech co uk iztech WavBox File naming convention The file names provide the association with inputs as well as determining if a file will be interruptible or not The format is as follows Raudio_Z wav Z Interruptible Flag lori file interruptible N or n file not interruptible audio_ fixed portion of file name do not change IR Input reference 01 Input 1 02 Input 2 Etc Examples O1audio_i wav File associated with input 1 and can be interrupted during playback O1audio_n wav_ File associated with input 1 and can t be interrupted during playback O6audio_i wav File associated with input 6 and can be interrupted during playback iztech ltd unit 75 joseph wilson ind est millstrood road whitstable kent ct5 3ps t 01227 808 249 f 01227 266 689 sales iztech co uk www iztech co uk iztech WavBox Audio Loop thru A 3 5mm stereo jack is provided to connect an external audio source to the WavBox This can be used to allow audio to be tested through the amplifier prior to transferring it to the SD card Ensure a SD card is inserted prior to enabling loop thru To enable this press the Loop Thru button Volume adjustment is not available during loop thru
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