BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  noise when I play sound from db file          BorlandTalk.com Forum Index -> Delphi Databases (ADO) View previous topic :: View next topic   Author Message Gilbert Guest Posted: Mon Feb 14, 2005 3:58 am    Post subject: noise when I play sound from db file I use delphi 6 ,xp use Tmediaplayer,ado,dblookuplistbox I created a program that gets a mp3 from db file and plays it. At first the sound was great. Then (3 weeks ) later, the mp3 has a noise on it. I created the db with MS access. I have not change the mp3 read procedure I checked with MS access and it plays clear. Back to top Viatcheslav V. Vassiliev Guest Posted: Mon Feb 14, 2005 5:16 pm    Post subject: Re: noise when I play sound from db file If you place mp3 into table using Access UI, it appends header info into BLOB. For bitmaps, header is 78 bytes. If you write mp3 into table using BLOB field, there is no header. I do not know how mp3 will sound if it is prepended with Access OLE field header. Try to add one mp3 using Access UI and another using TBlobField and compare how they sound. //------------------------------------------ Regards, Vassiliev V. V. http://www.managed-vcl.com - using .Net objects in Delphi for Win32 + ADO.Net http://www.oledbdirect.com - The fastest way to access MS SQL Server, MS Jet (Access) and Interbase (through OLEDB) "Gilbert" <jinjeeh (AT) hotmail (DOT) com> ÓÏÏÂÝÉÌ/ÓÏÏÂÝÉÌÁ × ÎÏ×ÏÓÔÑÈ ÓÌÅÄÕÀÝÅÅ: news:421020ba$1 (AT) newsgroups (DOT) borland.com... Quote: I use delphi 6 ,xp use Tmediaplayer,ado,dblookuplistbox I created a program that gets a mp3 from db file and plays it. At first the sound was great. Then (3 weeks ) later, the mp3 has a noise on it. I created the db with MS access. I have not change the mp3 read procedure I checked with MS access and it plays clear. Back to top Detlef Roß Guest Posted: Mon Feb 28, 2005 8:40 pm    Post subject: Re: noise when I play sound from db file Viatcheslav V. Vassiliev wrote: Quote: If you place mp3 into table using Access UI, it appends header info into BLOB. For bitmaps, header is 78 bytes. If you write mp3 into table using BLOB field, there is no header. I do not know how mp3 will sound if it is prepended with Access OLE field header. Try to add one mp3 using Access UI and another using TBlobField and compare how they sound. //------------------------------------------ Regards, Vassiliev V. V. http://www.managed-vcl.com - using .Net objects in Delphi for Win32 + ADO.Net http://www.oledbdirect.com - The fastest way to access MS SQL Server, MS Jet (Access) and Interbase (through OLEDB) "Gilbert" <jinjeeh (AT) hotmail (DOT) com> ÓÏÏÂÝÉÌ/ÓÏÏÂÝÉÌÁ × ÎÏ×ÏÓÔÑÈ ÓÌÅÄÕÀÝÅÅ: news:421020ba$1 (AT) newsgroups (DOT) borland.com... I use delphi 6 ,xp use Tmediaplayer,ado,dblookuplistbox I created a program that gets a mp3 from db file and plays it. At first the sound was great. Then (3 weeks ) later, the mp3 has a noise on it. I created the db with MS access. I have not change the mp3 read procedure I checked with MS access and it plays clear. Hi be carefully, I found that 78 byte is not allways the header length because access stores the path information in this heading. Here is the correct solution for pictures: http://delphi.about.com/compute/delphi/library/weekly/aa030601a.htm I hope it helps Detlef Ross Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         BorlandTalk.com Forum Index -> Delphi Databases (ADO) All times are GMT Page 1 of 1   Jump to: Select a forum C++ Builder Newsgroups----------------C++ BuilderC++ Builder (ActiveX)C++ Builder (Announcements)C++ Builder (Command Line Tools)C++ Builder DatabasesC++ Builder Databases (ADO)C++ Builder Databases (Desktop)C++ Builder Databases (InterBase Express)C++ Builder Databases (Multi-Tier)C++ Builder Databases (SQL Servers)C++ Builder (Graphics)C++ Builder (IDE)C++ Builder (Internet)C++ Builder (Internet Socket)C++ Builder (Internet Web)C++ Builder (Jobs)C++ Builder (Language)C++ Builder (Language C++)C++ Builder (Compatibility with MFC)C++ Builder (Native API)C++ Builder (Non-Technical)C++ Builder (Students)C++ Builder (Third Party Tools)C++ Builder (Upgrade)C++ Builder (VCL)C++ Builder (VCL Components Usage)C++ Builder (VCL Components Development)C++ Builder (VCL Usage)C++ Builder (WinAPI)C++ Builder Installation Delphi Newsgroups----------------Delphi (General)Delphi ActiveX Controls UsageDelphi ActiveX Controls DevelopmentDelphi As400Delphi DatabasesDelphi Databases (ADO)Delphi Databases (dbExpress)Delphi Databases (Desktop)Delphi Databases (InterBase Express)Delphi Databases (Multi-Tier)Delphi Databases (SQL Servers)Delphi DeploymentDelphi GraphicsDelphi IDEDelphi InternationalizationDelphi InternetDelphi Internet Isapi-WebBrokerDelphi Internet WebSnapDelphi Internet WinsockDelphi JobsDelphi Language BASMDelphi Language ObjectPascalDelphi Model Driven Architecture (General)Delphi Model Driven Architecture (Third Party)Delphi MultimediaDelphi Native APIDelphi Non-TechnicalDelphi ObjectPascalDelphi OLE AutomationDelphi OO designDelphi OpenToolsAPIDelphi Reporting-ChartingDelphi RTLDelphi StudentsDelphi TeamSourceDelphi Thirdparty ToolsDelphi Thirdparty Tools (General)Delphi Thirdparty Tools (IntraWeb)Delphi Thirdparty Tools (RaveReports)Delphi UpgradeDelphi VCLDelphi VCL ComponentsDelphi VCL Components UsingDelphi VCL Components WritingDelphi WebServices SOAPDelphi WinAPIDelphi XMLDelphi Installationcomp.lang.pascal.delphi.components.misccomp.lang.pascal.delphi.components.usagecomp.lang.pascal.delphi.components.writingcomp.lang.pascal.delphi.databasescomp.lang.pascal.delphi.misccomp.sources.delphi JBuilder Newsgroups----------------JBuilderJBuilder AnnouncementsJBuilder Applet IssuesJBuilder As400JBuilder CompilerJBuilder CORBA/RMIJBuilder DatabasesJBuilder DB SwingJBuilder DebuggerJBuilder DeploymentJBuilder DocumentationJBuilder EnterpriseJBuilder HandheldJBuilder IDEJBuilder JavaJBuilder JavaAPIJBuilder Java LanguageJBuilder Java SwingJBuilder Java BeansJBuilder Java Beans UsageJBuilder Java Beans DevelopmentJBuilder JBCLJBuilder JDataStoreJBuilder JobsJBuilder LinuxJBuilder MacintoshJBuilder & MobileSetJBuilder MultiLingual AppsJBuilder Non-TechnicalJBuilder OpenToolsJBuilder Servlets (JSP)JBuilder StudentsJBuilder Team DevelopmentJBuilder Thirdparty ToolsJBuilder UpgradeJBuilder Installation InterBase Newsgroups----------------InterBaseInterBase Bug DiscussionInterBase GeneralInterBase IBConsoleInterBase OpenSourceInterBase ReplicationInterBase SQLInterBase ThirdpartyInterBase Installation Miscellaneous Borland Newsgroups----------------AppCenterAppServerEnteraVisiBroker  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.